Lights-On Reminder Circuit

Posted on Sep 15, 2012

A relay and two diodes are all tliat is needed the relay performs the job of a buzzer so no annunciator is required. When the lights are left on, but the ignition is off, the normally closcd relay contacts are in series with the relay coil. That means the relay interrupts its own power each time it becomes active, so it chatters and acts like a buzzer.

Lights-On Reminder Circuit
Click here to download the full size of the above Circuit.

This is a real minimalistic headlight reminder. It doesn`t even require an annunciator because the relay acts as buzzer.

Leave Comment

characters left:

New Circuits



Popular Circuits

HF GENERATOR using a 68HCx11
Radio Control Motor speed Interface
Stabilizing a laser discharge current
Radio Commercial Zapper Circuit
Simple Code Lock
fm antenna booster circuit
led dimmer circuit
Circuit Diagram of Mobile Jammer
73 MHz Hallogene Lamp Radio-Controlled circuit
A Scriptable Thermometer
Nine Tube Stereo Amplifier 1