圆顶灯调光器电路--Dome Lamp Dimmer

There are times when a little light inside the car would greatly assist height=460 src="/data/attachment/portal/201007/ET31695201007221321221.jpg" width=731 border=0>

Click On /static/ic5/dianlu/image for the Full

     Many autos run power to lamps with only one wire using the car body for the return current path so the dimmer must interrupt the positive lead as shown. Simply cut the wire leading to the lamp and connect the lamp end to the collector of the TIP32 and connect the battery end to the circuit power input. Run an additional ground wire to the auto chassis from the circuit. This ground wire will not carry much current and may be a smaller gauge.