VPL Infotech & Consultants

Preet Vihar, Delhi

The open design of the Fuzzy Logic Control Trainer (VPL-FLCT) allows the range of fuzzy logic and control experiments to be developed and extended as required to suit the specific interests of the user. In the case of fuzzy control, any external system with compatible inputs and outputs may be considered for control using fuzzy logic via the VPL-FLCT.

FEATURES ofFuzzy Logic Control Trainer (VPL-FLCT)

• Teaching aid to take the mystery out of fuzzy logic. May also beused by practising engineers for fuzzy logic familiarisation.
• Unique hardware module oriented for implementing fuzzysystems using fuzzy system elements.
• Students learn by defining fuzzy parameters membershipfunction, Rules to get results.
• Compatible with Fruit-AX fuzzy system software allow user todefine membership functions, graphs, setup rules, and facilityto transfer the data on VPL-FLCT.
• Fuzzy systems complemented by links with Fruit-AX softwareto allow smooth progression to the more usual digital computerform.
• Allows rapid implementation and use of fuzzy systems.
• Manual contains full tutorial information for selfinstruction, from an introduction into the basic principles of fuzzy logic toperforming practical real time fuzzy control experiments usingcontrol models or other compatible equipment.

EXPERIMENTSThe experimental manual supplied with VPL-FLCT contains aseries of structured experiments which lead the student from anintroduction into fuzzy principles and circuits to real time fuzzycontrol.

The experiments cover the topics of:

• Fuzzy membership
• Defuzzification
• Fuzzy logic operators

Case studies with practical fuzzy control of external system

• Thermal control
• Humidity Control
• Relay control
• Environmental control using humidity & temperature parameters

FEATURES

• Based on 89C51 family based processor.
• 40x2 LCD for Display interface and Keyboard entry through IBM PC Keyboard.
• It has hardware block for doing various experiments:
  • - Mic input with conditioning circuit.
  • - Keyboard matrix (5x4) for scanning the key codes.
  • - Audio output on Headset.
  • - With LCD of 40x2.
  • - SIM socket.
  • - Buzzer.
• Understanding of various functions with the use of AT commands.
• Various SIM signals like Card Read, Card Clock, Card Presence, Card Data are available for debugging.
• With buzzer provides for incoming call.
• External antenna for capturing the incoming signal.
• Various examples using AT commands are given for Phone dialing, SMS Read, Write, Phone book, General purpose I/O lines, Keyboard interface to Modem are given.
• Modem can operate through PC as well as standalone system directly.
• In-built power supply.

GSM PARAMETERS

• Multiple Access Method -TDMA / FDMA.
• Uplink frequencies (MHz) -933-960 (basic GSM).
• Downlink frequencies (MHz) -890-915 (basic GSM).
• Duplexing -FDD.
• Channel spacing, kHz -200.
• Modulation -GMSK.
• Portable TX power, maximum / average (mW) -1000 / 125.
• Power control, handset and BSS -Yes.
• Speech coding and rate (kbps) -RPE-LTP / 13.

Satellite Communication Trainer has been designed to study completely about satellite communication system i.e. how a signal is transmitted and received using satellite standards. The complete unit of Satellite Communication Trainer consists of three sections; Satellite Uplink Transmitter, Satellite Emulator and satellite Receiver. The satellite emulator receives signal from satellite uplink transmitter which can be analyzed and emulated using various satellite instruments like spectrum analyzer. The received signal is then retransmitted to satellite downlink receiver where the signal is retrieved. The signals which are used for transmission are audio, video, and digital data. A provision to connect function generator is also provided. Using the above setup concepts like baseband analog signal parameters, phenomenon of linear polarization C/N ratio, S/N ratio, fading of a received signal, digital baseband signal parameter propagation delays can be studied. Data sent from one computer can be received on another computer using satellite link.

• Simultaneous communication of three different signals at each up-linking frequency
• Communication of external broad band digital and analog data and base band signals.
• Choice of different transmitting and receiving frequencies
• Transmission and reception with helix, dish antenna is provided

Technical Specifications

• Satellite Uplink Transmitter
• Selectable 2.4 GHz band using keypad and LCD indication
• 5/5.5 MHz audio and 8 MHz video FM modulation
• Adjustable path loss knob to 30 dB
• Transmission and reception with Helix, dish antenna is provided
• Detachable dish antenna with Separate Terminals for different inputs
• Transmit three signals simultaneously at each up-linking frequency
• FM Modulation of audio and video
• In built power supply

The GSM Trainer, offered by us, is based on 89C51 family based processor. Our GSM Trainer features 40x2 LCD for display interface and keyboard entry through IBMPC keyboard. GSM Trainer has mic input with conditioning circuit and hardware block for doing various experiments. Features

• Audio output on Headset
• Keyboard matrix (5x4) for scanning the key codes
• With LCD of 40x2
• SIM socket
• Buzzer
• Understanding of various functions with the use of AT commands
• Various SIM signals like card read, card clock, card presence, card data are available for debugging
• With buzzer provided for incoming call
• External antenna for capturing the incoming signal
• Various examples using AT commands are given for phone dialing, SMS Read, write, Phone book, ADC, General purpose I/O lines, keyboard interface to modern are given
• Can be operated through PC as well as standalone system directly
• In-built power supply

GSM Parameters

• Multiple Access Method  TDMA/FDMA
• Uplink Frequencies (Mhz)  933-960 (basic GSM)
• Downlink frequenices (Mhz) 890 -915 (basic GSM)
• Duplexing  FDD
• Channel spacing, kHz-200
• Modulation  GMSK
• Portable TX Power, Maximum / average (mW)  1000/125
• Power control, handset and BSS- Yes
• Speech Coding and rate (kbps) RPE- LTP / 13
• Speech Channels per RF channel  8
• Channel rate (kbps)270.833
• Channel coding  Rate ½ Convolution
• Frame duration (ms) -4.615

VPL- EPABX Trainer is a single board EPABX TRAINING Kit configured around the most popular microcontroller 89C51. EPABX Trainer can be used to train the engineers about the architecture of EPABX. This EPABX Trainer has the provision to use 1, 2 or 3 trunk lines & 4, 6 or 8 extension lines respectively. Locking & other facilities are provided in EPABX Trainer same as normal Epabx. EPABX Trainer can perform functions such as use the password to protect the call extension to extension call, hold, call transfer, call pickup, call parking, call forwarding, redial, call control, conference, do not disturb etc. Specifications

• Based on 89c51 CPU
• Provision for up to 1 trunk line & 3 extension lines
• IBM PC compatible keyboard for using command
• 20 x 2 LCD display
• Complete circuitry of EPABX is on board
• Working in 2 Modes
• Trainer model Epabx mode
• Explanation, Observation, Alignment and adjustment of Internal & external controls is possible
• Programmed for different section can be written in RAM
• Programs written by user are executable
• Standard EPABX specification
• 79dbm Cross Talk Attenuator
• Telephone Instruments (Optional)

Experiments Performed on the EPABX Trainer are

• Redial
• Extension to extension call
• Paging
• To hold a line
• Call consult
• Call parking
• Call forwarding busy
• Talk trunk to extension
• Call pickup
• Call transfer

We are a prominent Data Communication Trainer Exporter & Supplier in India. In Data Communication Trainer, the switch faults are provided on-board to study different effects on circuit and 20 Nos. of test points are provided on board to observe various intermediate signals. Features

• Serial Communication : RS-232 port (9 pin & 25 pin)Parallel Communication : 25 Pin LPT Port Wireless Communication : Infrared Transmitter : IR LED 920mmInfrared Receiver : Direct TTL outputBaud Rate : 2.4 kbps (max)Carrier Frequency : 38Khz

Optic Fiber Communication

• Transmitter : Peak wavelength of emission 660mm visible Red (SFH 756V)
• Receiver : Photo detector with TTL logic output (SFH551V)
• Baud Rate : 115kbps
• Fiber optic cable

 

 

Switch faults

• Switch faults are provided on-board to study different effects on circuit
• 20 Nos. of test points are provided on board to observe various intermediate signals
• In-built power supply +5V, + 12v

List of Experiments

• Study of serial and parallel Port
• Study of serial communication
• Study of flow controls in serial communication
• Study of protocols in serial communication
• Study of fiber optic communication
• Study of Modern communication
• Study of wireless communication
• Study of parallel communication
• Study of printer interface using parallel port

TMS320LF2407A DSP processor, the maximum operating frequency 40MHzDSP chips embedded SRAM word 2.5kDSP chips embedded 32k word FLASH32k 16-bit expansion of RAM, 32k 16-bit data RAMLED displayProcedures, data, IO can independently addressable 64k;IO input-output module four buttons control LEDRS232 communications interface circuits4 way 8 serial DA output;AD conversion module 2, 10 bit A D Sample (expandable to 16 channels)CAN module CAN bus transceiverPWM control module PWM micro-motor rotating direction (optional)Stepper motor interface (optional)T6963 controller 128 64 LCD interface (optional)

It has hardware block for doing various experiments:- Mic input with conditioning circuit.- Keyboard matrix (4x4) for scanning the key codes.- Audio output on Headset.- SIM socket.- Buzzer.With buzzer provides for incoming call.External antenna for capturing the incoming signal.In-built power supply.

It demonstrates ASK, FSK & PSK Modulation & Demodulation techniques.Circuit diagram printed on PCB.On-board synchronized Source.On-board Modulating Function (Signal) Generator with variable amplitude & frequency.On-board ASK, FSK, PSK Modulator.On-board ASK, FSK, PSK Demodulator.On-board potentiometer for varying depthpercent of modulation.Interconnection: 24mm banana sockets.DC Supply: Built-in IC regulated power supplies.220V 10%, 50Hz mains operated.Enclosed in an attractive ABS plastic cabinet with cover.Standard Accessories: Users Manual with patch cords.

Pioneers in the industry, we are engaged in offering a wide and high-quality assortment ofAnalog Lab Trainer VPL-AL-3030 (Analog Electronics Trainer)to the clients. The entire range is tested over the grounds of quality parameters to ensure the delivery of flawless products to the clients premises.

Salient Features:

• Hi Quality Bread board.
• Ready to use circuit boards (optional)
• On Board DC power supply
• On Board Function Generator
• On Board Modulation/Audio Generator
• On Board Continuity Tester/Buzzer
• On Board Toggle Switches
• More than 20 designed experiments for breadboard.
• Fictional blocks indicated on board mimic.

Pioneers in the industry, we are engaged in offering a wide and high-quality assortment ofDigital Lab Trainer VPL-DL-3030 (Digital Electronics Trainer)to the clients. The entire range is tested over the grounds of quality parameters to ensure the delivery of flawless products to the clients premises.

Pioneers in the industry, we are engaged in offering a wide and high-quality assortment ofDigital Lab Trainerto the clients. The entire range is tested over the grounds of quality parameters to ensure the delivery of flawless products to the clients premises.

Salient Features:

• Hi Quality Bread board.
• Ready to use circuit boards (optional)
• On Board DC power supply
• On Board 1 MHz Pulse Generator
• Pulser switches, 8 bit data switches
• Bicolor LED display & Logic probes
• BCD to seven segment display
• More than 25 designed experiments for breadboard.
• Fictional blocks indicated on board mimic.

To fulfil the variegated demands and requirements of numerous patrons, we are instrumental in offeringDigital IC Trainer.It is prepared by making use of the top quality components and latest techniques. Apart from this, it is available at the nominal rates.

To fulfil the variegated demands and requirements of numerous patrons, we are instrumental in offeringDigital IC Trainer.It is prepared by making use of the top quality components and latest techniques. Apart from this, it is available at the nominal rates.

Features:

• Power efficiency
• High work capacity
• Durable

Experiments:

• Study of basic gates and verification of their truth tables (NOT, OR, AND, NOR, NAND, EX-OR, EX-NOR).
• Study and verifications of the laws of Boolean Algebra and Demorgans theorem.
• Study of important TTL terminologies, verification of important TTL circuit parameters.
• Construction and verifications of various types of flip-flops using gates & ICs (RS, JK, D, T, M/SJK).
• Construction and verification of various types of combinational circuits such as Half Adder, Full Adder, Half Subtractor, Full Subtractor, Even/Odd Parity Checker, Multiplexer, Demultiplexer, Binary to Gray & Gray to Binary converters.
• Construction and verification of various types of Up/Down, Synchronous Asynchronous, Ripple, Reverse, Ring, Binary, BCD & Decade Counters.
• Construction and verifications of 4 bit universal shift register (SR/SL operation).
• Study of 7-segment display and decoder/driver.

SALIENT FEATURES

• On Board 24 data bit generator
• On Board 4 phase generator (sine0, cosine0, -sine & -cosine i.e., 0, 90, 180 270)
• On Board Tribit Encoder - Decoder
• On Board data switches for I, C & Q
• On Board word clock generator
• On Board Input / Output Buffer
• On Board Test Points & Fault Switches

LIST OF EXPERIMENTS

• To study and measure the Data Encoding
• To describe the bit splitting into Di-bit and Tri-bit
• To study and analysis of BPSK modulation
• To study and analysis of QPSK modulation
• To study and analysis of QAM modulation
• To study and analysis of QAM demodulation

OPTIONAL ACCESSORIESMultimedia interactive computer based training manual

SALIENT FEATURES

• PAM PPM PWM Modulation & Demodulation techniques, using natural & Flat top sampling.
• Analog sample, sample & Hold and Flat Top output.
• Selectable 4 different sampling pulse frequencies on board.
• Voice communication using dynamic microphone & speaker.
• On Board Filter and AC Amplifier.
• 8 switched faults.

TECHNICAL SPECIFICATIONS

• Pulse Modulation Techniques :
• Pulse Amplitude Modulation
• Pulse Width Modulation
• Pulse Position Modulation

LIST OF EXPERIMENTS

• PAM using Natural & Flat Top sampling.
• Sample & Hold Flat Top Output in PAM.
• PPM Using DC & AS (sine wave) Modulating signals.
• Pulse Position Demodulation.
• Pulse Width Modulation & Demodulation.

OPTIONAL ACCESSORIES

• Multimedia interactive computer based training manual.

SALIENT FEATURES

• Crystal controlled Pulse Generator.
• Demonstrates Sampling and Reconstruction as per Nyquist criterion.
• On Board Analog Generator (Synchronized).
• 5 selectable sampling frequencies.
• Sampling Pulse Duty Cycle selectable.
• Internal / External sampling input selectable.
• Separate sample and sample/hold outputs.
• On Board 2nd order and 4th order L.P filter.

LIST OF EXPERIMENTS

• Signal sampling and Reconstruction Technique.
• Aliasing & Effect on Reconstruction of signal due to various sampling frequencies.
• Effect of Amplitude of Reconstructed Signal by varying sampling Pulse duty Cycle in Sample & Sample/Hold output.
• Comparison of 2nd & 4th order butter worth Filters.
• Signal Sampling and Reconstruction using External Sampling input.

OPTIONAL ACCESSORIESMultimedia interactive computer based training manual

SALIENT FEATURES

• Crystal controlled Clock.
• On Board Sine Generator (Synchronized).
• On Board Pulse Generator.
• 4 Analog input Channels samples and Time Division Multiplexed.
• Pulse Duty cycle selected.
• 4 Channel De multiplexer.
• Generation of clock at Receiver by PLL system.
• 4th order Butterworth L.P. Filters.

LIST OF EXPERIMENTS

• Pulse Amplitude Modulation technique.
• Time Division Multiplexing and De multiplexing.
• PLL as Frequency Multiplexer to Generate clock from Sync signal.
• 3 modes of operation to generate original signal.
• 3 connections between transmitter & receiver (Clock, Sync & Information).
• 2 connections (Information, Sync) Clock gen. at receiver.
• 2 connection (information only), clock and Sync derived at receiver.
• Effect of varying duty of sampling pulse on signal reconstruction.

OPTIONAL ACCESSORIESMultimedia interactive computer based training manual

SALIENT FEATURES

• Both Transmitter & Receiver on same board.
• Clock generation from crystal.
• 4 switch selectable sampling rates.
• On Board Generators at 4 different frequencies (Synchronized).
• Separate Adjustable DC Level.
• Selectable integrator gain setting (by switch or control circuit).
• On Board 4th order butter worth L.P. Filter.
• Unipolar to Bipolar conversion On Board.

LIST OF EXPERIMENTS

• Delta Modulation & Demodulation.
• Effect of slope overload and increased integrator gain in Delta Modulation Adaptive Delta Modulation & Demodulation.
• Delta Sigma Modulation & Demodulation.
• Amplitude overload in Delta Sigma Modulation.

OPTIONAL ACCESSORIESMultimedia interactive computer based training manual

SALIENT FEATURES

• 7 different data conditioning formats NRZ (M) RZ, Bi phase(Manchester), Bi phase (Mark), AMI, RB, Differentially encodeddibit pair to NRZ data.
• ASK, FSK, PSK, DPSK, & QPSK carrier demodulation
• Output gives 2 channel TDM multiplexed data output
• On Board Bi phase clock recovery circuit
• On Board data squaring circuit and different decoder

Carrier Demodulation:

• ASK Rectifier Diode
• FSK PLL Detector
• PSK & DPSK Square Loop Detector
• QPSK Fourth Power Loop Detector

LIST OF EXPERIMENTS

• Study of conversion of different data formats to NRZ dataformats.
• Various carrier Demodulation Techniques ASK, FSK, PSK, DPSK, & QPSK

OPTIONAL ACCESSORIESMultimedia interactive computer based training manual

SALIENT FEATURES

• Crystal controlled Clock & Sine Generator (Synchronized)
• 2 TDM Analog channels
• Error Check code option (Odd Even parity, Hamming code)
• 4 switched faults can be used for error check & fault simulation.
• PC PC communication via RS 232

On Board Generators:

1. Adjustable Amplitude sine Generator of 500Hz & 1KHz (synchronised)1 & 2 KHz synchronized frequency (optional)
2. Variable Amplitude DC Level (2 nos.)

LIST OF EXPERIMENTS

• Pulse Code Modulation
• A/D Converter, Parallel to serial Data conversion
• Time Division Multiplexing of PCM Data
• Synchronization by Pseudo random code Error check codes with switched faults
• Connecting modes between transmitters & receiver
• i) Sync, clock, data line connected
• ii) Clock, data connected Data Only
• PC PC communication in 3 modes

OPTIONAL ACCESSORIESMultimedia interactive computer based training manual

SALIENT FEATURES

• On board line, terminating resistances and test generators.
• Functional blocks indicated on board mimic.
• Built in Power Supply.
• On board Test points.

• LIST OF EXPERIMENTS

  Measurement with Matched, Short & Open end of the line.

  • Measurement of line properties.
  • Measurement of line attenuation.
  • Frequency characteristics of line.
  • Input impedance of the line.
  • Measurement of stationary waves.
  • Phase shift along the line.
  • Fault localization within the line.
  • Line in pulsed condition.

  OPTIONAL ACCESSORIES

  • Multimedia interactive computer based training manual

SALIENT FEATURES

• VLSI Based Training System
• On board digitally synthesized fundamental frequency & harmonics
• On board DC Generators
• Digitally controlled select switch for Harmonic
• On board Summing Amplifier
• Individual Gain Control
• On board sine, Cosine selection
• On board Phase Reversal provision
• Built in Power Supply
• Functional Blocks indicated on Mimic Board

• LIST OF EXPERIMENTS

  • To construct a triangular wave with the help of fundamental frequency and its harmonic component
  • To construct a rectangular sawtooth wave with the help of fundamental frequency and its harmonics component
  • To construct a square wave with the help of fundamental frequency and its harmonic component
  • To construct an absolute value sine wave with the help of fundamental frequency and its harmonic component
  • To construct Half sine wave with the help of fundamental frequency and its harmonic component
  • To construct AM wave with the help of 3 frequency components

  OPTIONAL ACCESSORIESMultimedia interactive computer based training manual

TECHNICAL SPECIFICATIONS

• To study the QPSK Modulation & Demodulation.
• Circuit diagram printed on PCB.
• Built in Carrier Generator.
• Built in Modulating Signal Generator.
• QPSK Modulator.
• QPSK Demodulator.
• 220V 10%, 50Hz mains operated.
• Enclosed in an attractive ABS plastic cabinet with cover.

TECHNICAL SPECIFICATIONS

• To study the QPSK Modulation & Demodulation.
• Circuit diagram printed on PCB.
• Built in Carrier Generator.
• Built in Modulating Signal Generator.
• QPSK Modulator.
• QPSK Demodulator.
• 220V 10%, 50Hz mains operated.
• Enclosed in an attractive ABS plastic cabinet with cover.

TECHNICAL SPECIFICATIONS

• To study the DPSK Modulation & Demodulation.
• Circuit diagram printed on PCB.
• On-board Carrier Generator.
• On-board Modulating Function (Signal) Generator with variable amplitude & frequency.
• On-board DPSK Modulator.
• On-board DPSK Demodulator.
• On-board programmable word generator : cyclic 8-bit word.
• 220V 10%, 50Hz mains operated.
• Enclosed in an attractive ABS plastic cabinet with cover

TECHNICAL SPECIFICATIONS

• To study the Time Division Multiplexing & Demultiplexing
• Circuit diagram printed on pcb
• Data Generator 1 K b/s/Channel
• Low High, Logic Low sources
• Time Division Multiplexer
• Time Division Demultiplexer
• LED indication for channel outputs
• 220V 10%, 50Hz mains operated
• Enclosed in an attractive ABS plastic cabinet with cover

Pulse Amplitude Modulation & Demodulation Trainer is precisely prepared by the professionals using premium quality components under strict guidelines.

Technical specifications:

• To study the Pulse Amplitude Modulation & Demodulation
• Circuit diagram printed on pcb
• On-board Carrier Generator
• On-board Modulating Function (Signal) Generator with variable amplitude & frequency
• On-board Pulse Amplitude Modulator
• On-board Pulse Amplitude Demodulator
• On-board potentiometer for varying depth/percent of modulation
• 220V 10%, 50Hz mains operated
• Enclosed in an attractive ABS plastic cabinet with cover

This productVPL-CT-DCTis Digital Communication Trainer for demonstration and learning ASK, PSK, FSK modulation & demodulation experiments.

Technical Specifications:

• It demonstrates ASK, FSK & PSK Modulation & Demodulation techniques.
• Circuit diagram printed on PCB.
• On-board synchronized Source.
• On-board Modulating Function (Signal) Generator with variable amplitude & frequency.
• On-board ASK, FSK, PSK Modulator.
• On-board ASK, FSK, PSK Demodulator.
• On-board potentiometer for varying depth/percent of modulation.
• Interconnection: 2/4mm banana sockets.
• DC Supply: Built-in IC regulated power supplies.
• 220V 10%, 50Hz mains operated.
• Enclosed in an attractive ABS plastic cabinet with cover.
• Standard Accessories: Users Manual with patch cords.

This is our broad spectrum of Analog Communication Trainer. These products are passed through various parameters to ensure high efficiency. These are broadly praised for their trouble-free functionality that positions our product far ahead of our competitors.

Technical Specifications:

• It demonstrate AM, FM & PM (Phase Modulation) Modulation and Demodulation techniques
• Circuit diagram printed on pcb
• On-board synchronized Source
• On-board Modulating Function (Signal) Generator with variable amplitude & frequency
• On-board AM, FM, PM Modulator
• On-board AM, FM, PM Demodulator
• On-board potentiometer for varying depth/percent of modulation
• Interconnection: 2/4mm banana sockets
• DC Supply: Built-in IC regulated power supplies
• 220V 10%, 50Hz mains operated
• Enclosed in an attractive ABS plastic cabinet with cover

Amplitude Shift Keying Modulation & Demodulation TrainerVPL-CT-ASKis widely demanded for perfect performance. This range is prepared in line with the set industry standards.

Technical Specifications:

• To study the ASK Modulation & Demodulation
• Circuit diagram printed on pcb
• On-board Carrier Generator
• On-board Modulating Function (Signal) Generator with variable amplitude & frequency
• On-board ASK Modulator
• On-board ASK Demodulator
• On-board programmable word generator: cyclic 8-bit word
• Interconnection: 2/4mm banana sockets
• DC Supply: Built-in IC regulated power supplies
• 220V 10%, 50Hz mains operated
• Enclosed in an attractive ABS plastic cabinet with cover
• Standard Accessories: Users Manual with patch cords

This is also the basic Trainer in Communication Lab Series. Frequency Modulation & Demodulation TrainerVPL-CT-FMis widely demanded for perfect performance. This range is prepared in line with the set industry standards.

Technical Specifications:

• To study the Frequency Modulation & Demodulation
• Circuit diagram printed on pcb
• On-board Carrier Generator
• On-board Modulating Function (Signal) Generator with variable amplitude & frequency
• On-board Frequency Modulator
• On-board Frequency Demodulator
• On-board potentiometer for varying depth/percent of modulation
• 220V 10%, 50Hz mains operated
• Enclosed in an attractive ABS plastic cabinet with cover

This is the basic Trainer in Communication Lab Series. Amplitude Modulation & Demodulation TrainerVPL-CT-AMis widely demanded for perfect performance. This range is prepared in line with the set industry standards.

Technical Specification:

• To study the Amplitude Modulation & Demodulation
• Circuit diagram printed on pcb
• On-board Carrier Generator
• On-board Modulating Function (Signal) Generator with variable amplitude & frequency
• On-board Amplitude Modulator
• On-board Amplitude Demodulator
• On-board potentiometer for varying depth/percent of modulation
• 220V 10%, 50Hz mains operated
• Enclosed in an attractive ABS plastic cabinet with cover

TECHNICAL SPECIFICATIONS

• Fibre Optic Analog Transmitter and Receiver
• 600nm or 850nm SMA Connectorised FO LED
• Optical to Electrical & Electrical to Optical Converter
• SMA Connectorised FO Photo Transistor
• 1Mtr. PMMA (960/1000 u) SMA FO Cable
• Experiment for Attenuation in fibre optic cable
• Transmission and Reception of audio signals using Microphone
• DC Supply : Built in IC regulated power supplies
• 220V 10%, 50Hz mains operated
• Enclosed in an attractive ABS plastic cabinet with cover

FEATURES

Wireless embedded communication design, manufacture and integrate innovative, practical and easy to implement wireless solutions. These solutions provide our customers a fast track to either incorporate wireless technology within their current products or to simply design a new product range with built in wireless technology.

The coordinator (Transmitter) will transmit the data to the all end devices of different short address, MAC address without the routers.

PECIFICATIONS

The Wireless Embedded Communication Trainer two in number having the following feature:

• Communicated wirelessly at 2.4GHz, /2.5GHz, range 100 300 ft, various baud rates, Data rate of 250 kbps and 8 bit data.
• It has various output devices like:
  • Six Seven Segment Displays.
  • Stepper Motor Controller Interface.
  • LCD Display Interface.
  • 88 LED Interface Block.
  • Status LEDs 12 Nos.
• It has various Input devices like:
• Four Data Switches.
• Relay.
• Opto.
• Real Time Clock.
• Switch Array.
• At24C16 Serial EEPROM.

• It has various analog I/O devices like:
  • 8 Channel ADC Interface.
  • 1 Channel DAC Interface.

FEATURES

Satellite Communication Trainer has been designed to study completely about satellite communication system i.e. how a signal is transmitted and received using satellite standards. The complete unit consists of three sections; Satellite Uplink Transmitter, Satellite Emulator and Satellite Receiver. The satellite emulator receives signal from satellite uplink transmitter which can be analysed and emulated using various satellite instruments like spectrum analyzer. The received signal is then retransmitted to satellite downlink receiver where the signal is retrieved. The signals which are used for transmission are Audio, Video, and digital data. A provision to connect function generator is also provided.

Radar Trainer has been designed to study completely & demonstrate about the working and application of RADAR system. It is a self sufficient and complete setup of hardware and software to demonstrate Radar concepts and its applications. It is a great tool for Electronic & Telecommunication Lab/Department of any technical

FEATURES

• It has hardware block for doing various experiments:
  • - Mic input with conditioning circuit.
  • - Keyboard matrix (4x4) for scanning the key codes.
  • - Audio output on Headset.
  • - SIM socket.
  • - Buzzer.
• With buzzer provides for incoming call.
• External antenna for capturing the incoming signal.
• In-built power supply.

FEATURES

• Wire Less Communication.
• Optic Fiber Communication.
• Modem Communication.

LIST OF EXPERIMENTS

• Study of Serial and Parallel Port.
• Study of Serial Communication.
• Study of flow controls in Serial Communication.
• Study of Protocols in Serial Communication.
• Study of Fiber optic Communication.
• Study of Modem Communication.
• Study of Wire less Communication.
• Study of Parallel Communication.
• Study of Printer Interface using Parallel Port.

Siemens Simatic PLC Trainer can control a wide variety of devices to support your automation needs.

The Siemens PLC monitors inputs and changes outputs ascontrolled by the user program, which can include Boolean logic, Counting, Timing, Complex math operations and Communication with other intelligent devices. The compact design, flexible configuration and powerful instruction set combine to make the PLC a perfect solution for controlling a wide variety of applications.

PLC Trainer has been designed in a different way than conventional PLC suitable to impart training and use of PLC in Process Industry for students at all levels with 16 Input Switches and 16 Output LEDs to simulate the Ladder Program, assembler to generate ladder programs, descriptive user manual with number of examples including description & fundamentals of PLC, number of Experimental Panels to be connected to the PLC for practical demonstration of PLC uses (optional)

The micrologic 1000 PLC Trainer can control a wide variety of devices to support your automation needs.

The Micrologic PLC monitors inputs and changes output as controlled by user program which can include Boolean Logic, Counting, Timer, Complex math operations. The compact design, flexible configuration and powerful instruction set combine to make the PLC a perfect solution for controlling a wide variety of applications.

Siemens Simatic PLC Trainer can control a wide variety of devices to support your automation needs.

The Siemens PLC monitors inputs and changes outputs as controlled by the user program, which can include Boolean logic, Counting, Timing, Complex math operations and Communication with other intelligent devices. The compact design, flexible configuration and powerful instruction set combine to make the PLC a perfect solution for controlling a wide variety of applications.

The Siemens PLC monitors inputs and changes outputs as controlled by the user program, which can include Boolean logic, Counting, Timing, Complex math operations and Communication with other intelligent devices. The compact design, flexible configuration and powerful instruction set combine to make the PLC a perfect solution for controlling a wide variety of applications.

Our DSP Lab ProductVPL-DSP2407Development Board, owing to high-quality features, is highly acclaimed in the market. Also, it is available at industry leading prices.

System resources:

• TMS320LF2407A DSP processor, the maximum operating frequency 40MHz
• DSP chips embedded SRAM word 2.5k
• DSP chips embedded 32k word FLASH
• 32k 16-bit expansion of RAM, 32k 16-bit data RAM
• LED display
• Procedures, data, IO can independently addressable 64k;
• I/O input-output module four buttons control LED
• RS232 communications interface circuits
• 4 way 8 serial D/A output;
• A/D conversion module 2, 10 bit A/ D Sample (expandable to 16 channels)
• CAN module CAN bus transceiver
• PWM control module PWM micro-motor rotating direction (optional)
• Stepper motor interface (optional)
• T6963 controller 128 64 LCD interface (optional)

Extended Interface:

• DC5V external power supply interface
• JTAG IEEE 1149.1 standard interface
• 120pin functionality through pin socket
• RS232 standard interface connector socket
• D/A four channel output sockets
• 2-way D output socket interface
• CAN bus interface socket;
• Motor interface (optional)
• Stepper motor interface (optional)
• 16 characters x 2 LCD interface (optional)
• T6963 controller 128 64 LCD interface;
• Optional LCD backlight power external interface can choose the jumper.

Package Contents:

• DSP2407 development Card
• Serial Cable
• USB power line 1
• 6 V DC Adapter 1
• CD-ROM

Measurement System :

• a] Weights
• b] Transducer with electronic instrumen tation.

The offered product Sensor/Transducer Trainer Kit (VPL-TT-TTT) consist of various transducers and sensors on board viz LVDT, Load Cell, Smoke Sensor, Speed Sensor, strain gauge etc. This is helpful and easy in study of principle and working of various sensors & transducers.

Specifications:

• Study of RTD, Thermocouple as temperature measuring transducer
• Demonstrate the principle and working of load cell and itsapplications for measuring load 0-2 Kg.
• Strain in terms of Kilograms on a cantilever beam usingStrain Guage
• To study of LVDT as displacement transducer
• To study of Smoke Sensor
• To study of Speed Sensor
• Built in I.C. based DC regulated power supply with shortcircuit protection and LED indication for supply ON.
• Bridge made up of strain gauges mounted on a speciallyalloy materials type load cell.
• Built in excitation voltage for the bridge.
• Built in 3.5 digit seven segment display for direct readingstain in Kg.
• Built in highly sensitive signal amplifier.
• Different loads provided for building up of load.
• O/P provided on test points for monitoring & controlling.
• Heater & Glass thermometer for reference
• Housed in an elegant with a well spread intelligentlydesigned circuit layout on front panel.
• Strongly supported by a comprehensive instruction manualcomplete with theory and operating details.
• With essential Test Points and detailed Instructional Manual
• 230V AC Operated and with required Patch cords

To train technicians to be able to install and maintain electronic equipment. A good technician should always follow state-of-the-art technology and rapid innovation of new products. Our system has been designed to satisfy the technical educational demand. In fact VPLPIET is adapted to theoretical and practical courses for studying power electronics and industrial electronics.

FEATURESComprehensive study, including theoretical study and practical exercises.Use of industrial type components, devices and circuits
Power Supply:

Variable:0-10V DC/1Amp, 0-40V DC/1Amp

DC Supply:+5V/1Amp, +12V/200mA, +15V/200mA, +30V/200mA, 12V/200mA, +30V/400mA-12V 0 +12V DC1/200mA, -12V 0 +12V DC2/200mA, -12V 0 +12V DC3/200mA, -12V 0 +12V DC4/200mA

AC Supply:0 10V/400mA, 0 12V/400mA, 0 24V/400mA, 10 0 10V/200mA, 16 0 16V/200mA, 220V Socket

3 Digit Digital Meters :* DC Ammeter 0-20mA/0-200mA* DC Ammeter 0-200mA/0-2000mA* DC Voltmeter 0-20V/0-200V* AC Voltmeter 0-200V* AC Ammeter 0-200V

Motors:DC Motor for SCR Control Speed ExperimentsAC Motor for TRIAC Control Speed Experiments

Experimental Modules

01. Characteristics Experiments and Advance Power Electronics Components like POWER MOSFET & IGBT02. UJT Experiments, UJT & PUT Trigger SCR Experiments03. PUT Experiments04. PUT & SCR Experiments, TRIAC Overflow Experiments05. SCS Experiments, Temperature Ratio and Touch Control Experiments06. SCR Control DC/AC Motor Experiment07. Automatic Control Lamp Experiments, Various Turn ON Techniques for SCR & TRIAC.08. TRIAC Control Speed Experiments, Photo Couple Experiments.09. Over Voltage Under Voltage Breaker and Flasher Control Experiments.10. IC Timer Switch Experiments11. Digital Signal Driver and Zero Voltage Switch, Advance Firing Scheme Experiments.12. SCR Converter Experiments and Snubber Circuit using RC13. SCR Commutation Techniques Experiments (Optional)14. SCR Inverter Experiments (Optional)15. Cyclo Converter Experiments (Optional)16. SCR Based Choppers (Optional)17. IGBT/MOSFET Inverter Experiment (Optional)

List of Experiments Study of Single-phase Fully Controlled Thyristorized Bridge ConverterIt involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance. Study of Single-phase Half Controlled Thyristorized Bridge ConverterIt involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance. Study of Three-phase Fully Controlled Thyristorized Bridge ConverterIt involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance. Study of Three-phase Half Controlled Thyristorized Bridge ConverterIt involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance. Study of Single-phase Dual Converter both in continuous and discontinuous mode of operationIt involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance). Study of Three-phase Dual Converter both in continuous and discontinuous mode of operationIt involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance). output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance. Study of Open Loop and Closed Loop operation of Single-Phase Converter fed DC motor Drive Study of Current Commutated Chopper It involves the study of firing circuit waveforms, output voltage and output current waveforms for R-L and motor load for different values of duty cycle and load inductance Study of Voltage Commutated ChopperIt involves the study of firing circuit waveforms, output voltage and output current waveforms for R-L and motor load for different values of duty cycle and load inductance. Study of Single-phase AC regulatorIt involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance. Study of Three-phase AC regulatorIt involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance. Study of 12 -pulse ConverterIt involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, RL and motor load for different values of firing angle and load inductance. Study of Single-phase Generalized ConverterThe converter can be configured in different modes, Le., singlephase half wave, single-phase half wave with FWD, singlephase full wave, single-phase half controlled bridge, singlephase fully controlled bridge, single-phase bridge with controlled flywheeling. It involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, R-L and motor load for different values of firing angle and load inductance. Study of Three-phase Generalized ConverterThe converter can be configured in different modes, i.e. threephase half wave, three-phase half wave with FWD, three-phase full wave, three-phase half controlled bridge, three-phase fully controlled bridge, three-phase bridge with controlled flywheeling. It involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, R-L and motor load for different values of firing angle and load inductance. Study of Single-phase Voltage Source InverterThe inverter can be configured in different modes, i.e., square wave, unipolar sinusoidal PWM control, Bi-polar sinusoidal PWM control, Equal pulse width modulation control. It involves the study of firing circuit waveforms, output voltage, output current, SCR voltage and input current waveforms for R, R-L load for different values of operating frequency and magnitute. Study of Three-phase Voltage Source Inverter Study of cycloconverterOther than the experiments mentioned above, we can also provide experiments on improved power factor converters, active filters, multi-Level inverter multi-level converter, multi-phase choppers etc. The above converters can be controlled using analog and digital circuits as well as microcontroller 8051. The complete design of the converters along with the simulation waveforms of the controller output will be provided.

VPL-ADT-IC Advanced Digital IC Trainer Kit SPECIFICATIONS

• 10 nos. of TTL compatible logic level inputs.
• TTL logic selectable by a toggle switch.
• Logic HIGH and logic LOW are displayed by dual color LED.
• Four crystal generated clock output of 1MHz, 1KHz, 10Hz, and 1Hz.
• Facility for single pulse generation by a push button switch.
• Logic probe to check logic LOW, logic HIGH and pulse.
• Four seven segment displays with BCD inputs.
• Facility of segment control on two displays.
• Sockets onboard to fix the ICs : 16 pin-4nos., 20 pin- 2 nos., 28 pin-6 nos., 40 pin-2 nos.
• 2 nos. of 14 pin general purpose area provided for soldering descrete components.
• Two nos. of 26 pin connectors for input/output connection with Microprocessor kit through 8255.
• Built-in Power supply : 5V, 1Amp, +12V, 250mA.

USB DATA ACQUISITION SYSTEMMODEL : USBDAS-0816The USBDAS-0816 is the lowest cost USB data acquisition system which provides eight 12-bit analog inputs, 16 digital I/O lines, two programmable pulse-width output channels, and one 16-bit counter channel. Analog sampling rate is up to 32 ksamples/s for all 8 channels, with single channel up to 13 ksamples/s. The package comes with all free USB cable, screw driver, device driver, DLL, LabVIEW driver, dot net wrapper class, rich examples and free ready-to-run DASTest&Log testing and data logging software. This USBDAS is the best choice of the multifunction USB data acquisition system in the low cost USB DAS group. Our economic USBDAS proves to give a smooth performance, it does not hang or freeze the computer. This USB data acquisition system can be used in industry process control and monitor, academic education project, hobby project and other low budget projects. User can create their own software to integrate USBDAS-0816 or just use our free ready-to-run DASTest&Log data logging and control software.FEATURESUSB 2.0/1.1 Full Speed InterfaceCE compliantUSB Bus Powered8 Single-Ended, 12-Bit Analog Inputs0-4.050 V Analog Input RangeUp to 32 kSamples/Sec Throughput with Single Channel Up to 13k Samples/Second for Streaming Mode.Supports Both Scan Mode and Continuous Streaming ModeData AcquisitionOne Dedicated Trigger Line for Streaming Mode Data Acquisition.Two programmable 10-bit PWM Outputs (3kHz- 333kHz)16 Bi-Directional Digital I/O Lines (125HZ update rate)One 16-Bit Counter240 bytes EEPROM Reserved for User DataMultiple USBDASs Can Be Connected On Same Computer.Simultaneous Streaming from Multiple USBDASs Possible.Works with Windows 98SE, ME, 2000, or XP, recommend winxp for better performance.Free USB CableFree ScrewdriverFree Downloadable Device Driver, Programming API (DLL), LabVIEW Drivers, VB Examples, ActiveX example, dot net example, C/C++ example.FREE Standalone Ready-to-Run DASTest&Log Software for Testing, Data Logging, Data Playback and Simple Analysis.30 Days Money Back Guarantee, 6 Month Warranty and Trade In Policy.Approximately 3.5" x 3.375" x 1.125" (9cm x 8.5cm x 3cm)Industrial Temperature RangeDASTest & LogThe free DASTest&Log is a standalone ready-to-run software that can be used to test the USBDAS device and log analog inputs data and read back logged data for basic analysis. With this software, user can browse through all the features in USBDAS, such as read single analog channel, multiple analog channels, streaming analog input data continuously for display and log into file with or without external trigger, set DIO (digital I/O) directions and read/write DIO states, program PWM output frequency and duty cycle, read counter etc. Its ideal for people who do not want to write their own software.

VPL Power Electronics Lab is used to perform all the power electronics circuit experiments. It is very useful in power electronics laboratory for performing different experiments. It helps the student to know about the characteristics of power electronics devices and their applications. The applications of power devices are in alarm circuit, lamp flasher, rectifiers, choppers, inverters, etc. The trainer consists of different functional blocks marked clearly for easy understanding.