Logsun Systems Hingne Khurd, Pune, Maharashtra

STUDY OF SCR CHARACTERISTICS  Or (Mosfet Characteristics) (LGS PE-1)The set up comes in to parts with provision for high voltage variable power supply (0 to 500 volts), 0 to 10 volts with voltmeter and provision for gate current measurement, anode current measurement in the range of 0 to 10 mA. The part (A) houses variable power supply and part B provides facility to connect various SCR or MOSFET,diac,triac,IGBT along with load. Various characteristics of the device with measurement of latching current, holding current for SCR can be performed. STUDY OF SCR FIRING CIRCUITS: (LGS PE-2)Study of SCR firing circuits can be done with the help of five methods namelyi) Basic D.C. firing circuit.ii) Resistance firing circuit.iii) R-C phase shift-firing circuit.iv) Ramp and pedestal with anti parallel connected SCRs circuit.Scope of supply:This set up having top anodized plate, with printed circuit diagrams, includes ammeter & voltmeter for load current & voltage measurement.Panel Dimensions:1. 61cm(L) 40cm W), 10cm(H)2. Panel provision3. Facility for observation of waveforms on C.R.O. 4. Provision for varying firing angle of SCRs.5. Load control facility.6. Appropriate test points are provided on panel. JONES CHOPPER (LGS PE-3)30 V d.c. 1A fixed power supply for the chopper and d.c. Voltage is chopped down by main thyristor and commutating thyristor for variation of output from voltage of 5 to 25 volts b varying the on time control and frequency control of the chopping frequency circuit of the main thyristor. Optional analog voltmeter provided for measurement of output voltage. Appropriate test points provided. Size: 52 * 31*10cm (L*B*H) MORGAN’S CHOPPER (LGS PE-4)A fixed d.c. Voltage of 30 volts provided for the input of chopper and the same is chopped down to vary from 5 to 25 volts by a single thyristor and resonating L-C circuit. Variable load facility provided. The frequency of chopping also can be varied. Waveforms can be observed with the test points provided on the panel. It is a self-contained unit. Panel size:52*31*10 CM.(L*B*H)

Model Number : Model LGS U-MCU

Brand Name : Logsun Systems

Display Type : 16X2 LCD Display 8 bit & 4 Bit mode,4 Digit 7 segment Display

Power : 9-12V DC

LGS ADC01 Analog Signal Sampling & Reconstruction Unit LGS ADC02  Time Division Multiplexing & Demultiplexing Unit LGS ADC03 PCM Transmitter & LGS ADC04 PCM Receiver Pulse Code Modulation & Demodulation (PCM) with Error Detection / Correction LGS ADC05 Transmitter Coder/Modulator LGS ADC06 , Receiver Decoder/Demodulator Band Pass  Modulation / Demodulation (ASK,FSK,PSK,DPSK) with Channel Coding / Decoding LGS ADC07  Analog Pulse (PAM,PWM,PPM) Modulation & Demodulation Unit LGS ADC08 Delta (Linear & Adaptive, CVSD) Modulation & Demodulation LGS ADC09  QPSK Modulation Demodulation LGSADC10   Frequency Division Multiplexing Demultiplexing LGSADC11   QAM Modulation Demodulation

Digital Trainer DT3000x series are most suitable for Digital Laboratory. Digital Design up to 6 IC’s are possible. All Require resources are available on Board. Five Different Models to select. Built in Regulated power supply with short circuit protection 5V @ 1.5A (Optional ±12V and -5V) Easy Interconnections through BS4 type sockets ZIF (zero insertion force) sockets with protections for long life operations of ZIF 8/10/16 nos. of switches for inputs with LED indications 8/10/16 nos. outputs with LED indications 7 segment LED displays with decoder input Built in Logic pulser and Logic probe Fixed Clock in six steps Variable Clock with 50% duty cycle Less/no wiring from inside, easy to handle, long life operation of kit. Best Quality patch cords Operational manual with numerous examples

Brand Name : Logsun Systems

Power : 3 to 3.6 Watts

Application : Laboratory