Here is a 12 volt / 2 amp lamp dimmer that can be used to dim a standard 25 watt automobile brake or backup bulb by controlling the duty cycle of a astable 555 timer oscillator….Read moreContinue Reading »
The full wave phase control circuit below was found in a RCA power circuits book from 1969. The load is placed in series with the AC line and the four diodes provide a full wave rectified voltage to the anode of a SCR….Read moreContinue Reading »
The dimmer switch circuit which uses small, low voltage control is useful in load or electrical appliances such as small dc motor, LED, a small coil circuit as below. Another idea would be interesting.
12 Volt Lamp Dimmer Here is a 12 volt / 2 amp lamp dimmer that can be used to dim a standard 25 watt automobile brake or backup bulb by controlling the duty cycle of a astable 555 timer oscillator. When the wiper of the potentiometer is at the uppermost position,….
PWM Motor Speed Controller – DC Light Dimmer by IC LM324 A pulse width modulator (PWM) is a device that may be used as an efficient light dimmer or DC motor speed controller. The circuit described here is for a general purpose device that can control DC devices which draw up to a few amps of current…..
Spot lamp dimmer by LM555 and TIP2955 This circuit is DC Dimmer Circuit. By use IC LM555 be model Astable Multi vibrator. It is can change translate Duty Cycle with fining VR1 and VR2 be formed fine brightness level that want…Continue Reading »