This project uses the principle of pulse width modulation to vary the speed of a hand drill or other small, brush-type motor up to 200 watts. Provides from 0% to 98% max. speed.Works great as lamp dimmer. Operates on 110v AC.
Principles taught: Pulse width modulation, SCRs.
Components: Potentiometer, 2 capacitors, resistor, 2 diodes, 2 neon bulbs, 2 SCRs, slide switch, outlet, line cord. |
