Tender For Supply Of Eee Lab Items, Thiruvallur-Tamil Nadu

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 Halfbridge 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 , Dcshunt 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 , Universalmotor 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 => Limited

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Name of Work: Supply of EEE Laboratory Equipments

Sl. No.	Item Description
1	Supply of EEE Laboratory Equipments
2	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
3	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
4	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
5	Single Phase Half wave controlled Rectifier ? Half wave controlled Rectifier circuit ? Phase angle control potentiometer ? Provision to connect R Load & RL Load
6	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
7	Single Phase semi Controlled Bridge with R Load Trainer kit ? Single Phase HalfBridge 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
8	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
9	PWM based Step up Chopper using MOSFET ? PWM based control circuit ? Power Circuit to get variable DC
10	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
11	Single Phase Single Pulse Inverter using MOSFET/IGBT ? 50 cycles generation ? Variable duty cycle generation ? Driver Circuit ? H Bridge Power Circuit using MOSFET
12	Trainer Kit for SMPS using MOSFET ? Isolation transformer ? Inverter circuit ? Output circuit ? Feedback circuit
13	DCShunt 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
14	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
15	UniversalMotor 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
16	Single Phase Parallel inverter using MOSFET ? Triggering circuit ? Power Circuit using MOSFET ? Lamp Load ? Chopper Power Circuit
17	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
18	CRO with power probe
19	Multimeter