Headlight delay unit


Posted on Jan 1, 2013

This circuit will operate a car`s headlights for a predetermined time to light up the driveway or path after the driver has left the car. SQl is pushed and Q2 is turned on closing the relay and turning on the car`s headlights. Cl begins to charge through VR1 until Q1 turns on, turning Q2 off


Headlight delay unit
Click here to download the full size of the above Circuit.

The relay will then open switching off both the lights and the unit. The delay is governed by the time taken for the capacitor to charge, which is about one minute.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

200W Lamp Flasher with 555 timer
Room thermometer with LEDs
Fast Low Duty-Cycle Pulse Oscillator
Converter Circuit 6
triangular wave oscillator
High-intensity LED Warning Flasher
Practical Data Acquisition using a Windows based Power Meter
FIRE SIREN USES FLASHER
electronic chime
Halogen Lamp Dimmer With Soft Start
Simple design with a constant K-type high-frequency low-pass LC filter



Top