Supply of EEE lab items

Supply of EEE Laboratory Equipments

Line Synchronized UJT Trigger Circuit  Line Synchronization DC Power Supply Circuit  UJT Relaxation Oscillator Circuit  Provision to add DC Pedestal Voltage to the Capacitor in the Circuit  Triggering Circuit for 2 SCRs using Pulse Transformer  24 V Lamp AC Load using 2 SCRs

DIAC – TRIAC Lamp Control Circuit  Variable AC Power Circuit using TRIAC  DIAC circuit to trigger the TRIAC in both half cycles  Provision to vary the charging time of capacitor (changing the phase angle also) for the DIAC  Isolation Transformer for 110 V AC, Lamp Load

SCR Commutation Circuits(Class B & D)  Natural Commutation – 24 V AC Power Supply, DC Triggering  Current commutation – 24 V DC Power Supply, Pulse Triggering, RLC Components  Complementary Commutation – Main SCR and Auxiliary SCR, 2 nos. of DC Triggering  Resonant Commutation – 24 V DC Power supply, Pulse Triggering, Discharge circuit to facilitate to trigger again Voltage commutation – 2 Nos. of SCRs as on and off switches, Provision to charge the capacitance which will be used for voltage commutation

Single Phase Half wave controlled Rectifier  Half wave controlled Rectifier circuit  Phase angle control potentiometer  Provision to connect R Load & RL Load

Single Phase Fully Controlled Bridge with R & RL Load  Single Phase Full Bridge Power Circuit  Firing Circuit consists of Phase angle control circuit using TCA 785  Triggering circuit from the output of TCA 785 using Pulse Transformers  Vary the conduction angle and plot the output voltage  R, RL Load with freewheeling diode  24V, 2 A Power Supply for the Power Circuit  Necessary DC Power Supplies for the control circuits

Single Phase semi Controlled Bridge with R Load Trainer kit  Single Phase Half Bridge Power Circuit  Phase angle control circuit using TCA 785  Triggering circuit from the output of TCA 785 using Pulse Transformers  Vary the conduction angle and plot the output voltage  R & RL Load  24V, 2 A Power Supply for the Power Circuit  Necessary DC Power Supplies for the control circuits

DC Chopper Trainer kit  Ramp Generation Circuit  Level Translation Circuit  Comparator Circuit to produce PWM Signal  Monostable circuit for triggering Aux. SCR  Chopper Power Circuit using Main SCR and Aux. SCR with inductance  Triggering circuit for 2 SCRs with Pulse Transformer, Necessary DC Power Supplies

PWM based Step up Chopper using MOSFET  PWM based control circuit  Power Circuit to get variable DC

PWM based Step down Chopper using MOSFET  Square Wave Generator  Integrator to generate the Ramp  Comparator with DC Voltage as one input  MOSFET Switch to switch on the load, Small DC Motor as Load

Single Phase Single Pulse Inverter using MOSFET/IGBT  50 cycles generation  Variable duty cycle generation  Driver Circuit  H Bridge Power Circuit using MOSFET

Trainer Kit for SMPS using MOSFET  Isolation transformer  Inverter circuit  Output circuit  Feedback circuit

DC Shunt Motor open loop & closed speed Control Circuit with 24 V PMDC Motor kit  Phase angle control using TCA 785  Control Scheme to vary the phase angle of the Half Bridge  Trigger circuit for SCRs and with Pulse transformers  Half Bridge Power Circuit to drive the PMDC 24 V Motor  Small 24 V PMDC Motor  Necessary DC Power Supplies

Open Loop & Closed Speed Control of AC Motor  Carrier wave generation  PWM Generation according to the Sine Wave  Driver Circuit  H Bridge Power Circuit using MOSFET

Universal Motor Control Circuit with Fractional HP Universal Motor kit  Control Scheme for Phase angle control using TCA 785  Triggering Circuit for SCRs / TRIAC  SCR / TRIAC AC Power Circuit with switch and Power Socket  FHP Universal Motor with Plug Built in Power Supplies

Single Phase Parallel inverter using MOSFET  Triggering circuit  Power Circuit using MOSFET  Lamp Load  Chopper Power Circuit

Single Phase to Single Phase Cyclo Converter  Cyclo converter with divide by 2 supply frequency and divide by 3 frequency  Power Circuit using Center tapped 24 V Transformer and 4 nos. of SCRs and Resistive Load  +ve and –ve polarity Zero Crossing Detectors using Opto couplers  Decade counters to generate required control signals  Separate 4 nos. of DC Power Supplies to trigger the SCRs  Triggering circuits to trigger the ate circuits of Power SCRs

CRO with power probe

Multimeter

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BETA SCIENTIFIC EQUIPMENTS