Posts Tagged ‘light relay switch’



Intermittent wiper controller by 2N4401

Friday, October 5th, 2007

The intermittent wiper circuit shown above causes the auto’s windshield wipers to wipe once every several seconds instead of constantly wiping. The circuit may be added to older cars to provide the intermittent function or it may be used to replace broken wiper circuits in modern cars. The delay is continuously adjustable with the potentiometer [...]

12V 6 Amp Solar Power Center (SPC2) by TL2272

Friday, August 3rd, 2007

The SPC2 is a solar power center, it can be used to handle all of the power functions for small 12 Volt solar powered devices. It contains a photovoltaic charge controller and a low voltage load disconnect circuit. The low voltage disconnect has a load on-off switch, and a battery low voltage indicator. By using [...]

Light Relay Switch By BC547 & BC337

Tuesday, May 22nd, 2007

This circuit is simple form but can be useful various such as The alarm circuit, an more electronic control circuits such as ON-OFF electrical equipment, the flash light control circuit or etc. following with do you want. Function of the circuit From the circuit in Figure 1 that see two transistor Q1,Q2 join together in [...]