Light Dimmer

  
Lamp II is a household lamp. When the switch is in the center position, the lamp is operated on half-wave rectified ac; the ef
Light Dimmer - schematic

fective voltage the lamp sees is less, which dims it. II can be a lamp up to 200 W or 50 rated at 120 or 240 V, and D1 should be a 200-V PIV or better diode (400 PIV for 240-V operation).




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