MOSFET, IGBT, Transistor and SCR based Step Down Chopper Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12806
Indian Lab Suppliers supplies the MOSFET, IGBT, Transistor and SCR based Step Down Chopper (Product ID: 12806) as part of its electronics engineering lab equipment range. It compares MOSFET, IGBT, power-transistor and SCR step-down (buck) choppers driving resistive, R-L and DC motor loads.
Quick Answer
A step-down chopper switches a DC supply on and off so that the average load voltage equals the supply voltage times the duty cycle. A triangular-wave comparator PWM circuit on the board gives about 27 Hz to 5 kHz and 0–90% duty cycle, and any of four devices can be patched in as the switch: a MOSFET, a 600 V/10 A IGBT, a 100 V/5 A Darlington power transistor or a 600 V/12 A SCR. Each is tested with R, R-L and a 12 V, 0.1 A, 100 rpm geared DC motor load, giving 13 experiments including the PWM circuit itself. A DC supply is built in, connections use 4 mm shrouded sockets, and the board runs from 230 V, 50 Hz mains. Please confirm the MOSFET voltage and current rating at quotation. A 20 MHz dual-trace oscilloscope is needed and not included.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiments | PWM circuit; step-down chopper with MOSFET, IGBT, transistor and SCR, each with R, RL and motor load (13 in all) |
| PWM | Triangular comparator, about 27 Hz to 5 kHz, 0–90% duty |
| Devices | MOSFET; IGBT 600 V/10 A; Darlington transistor 100 V/5 A; SCR 600 V/12 A |
| Motor load | DC geared motor, 12 V/0.1 A, 100 rpm |
| Supply | Built-in DC supply; mains 230 V, 50 Hz |
| Connections | 4 mm shrouded sockets; 2 test points |
| Board | W 340 × H 125 × D 210 mm, about 2.6 kg |
| Accessories | 20 patch cords, 4 mm, 50 cm (10 red, 10 black) |
| Also needed | 20 MHz dual-trace oscilloscope (not included) |
Where This Is Used
Used in power-electronics labs to compare switching devices in DC-DC conversion, together with the Single Phase PWM Inverter (Product ID: 12800) and the Flyback Converter (Product ID: 12796). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What sets the output voltage?
The duty cycle: average output equals input voltage times duty cycle.
Why is an SCR harder to use in a chopper?
On DC it does not turn off by itself, so it needs a commutation arrangement.
What motor is used as load?
A 12 V, 0.1 A, 100 rpm geared DC motor.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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