12-24V Impulse control dimmer  

Motor Control Circuits
Added on
Dec 11, 2012
This circuit is intended for use with motors, lamps,heatings etc. Continuously from nearly zero up to maximum capacity (5-95%). Almost lossfree control by means of this impulse control. Nearly total turning moment of motors. The transistior T3 must absolutely be fastened on a heatsink with minimum dimentions of approximate 100x100x5mm. The heatsink has to be fixed insulated as the transistor has a conductive connection between the C-connection and the metal rear side.

12-24V Impulse control dimmer - img1

The transistor T3 can be destroyed by short circuit or by overheating if the circuit is operated without heatsink. --------------- Parts: R1=330-2W R2,R3=2,7K R6,R7,R5=1,5K R4=470 P=2X100K C1=47UF/10V C2=10UF/10V C3,C4=0.22UF/24v TANTAL. D1,D2=1N4148 D3=ZENER 10V-1W T1,T2=BC237C T3= BD331

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