The following transformerless power supply uses an MJE13005 transistor for voltage regulation. It acts like an amplifier controlled by a base zener diode to set the output voltage. A 3uF […]
DIY Emergency Lights: 10 Circuit Ideas
Have you ever been plunged into darkness by a sudden power outage? Fumbling for candles or tripping over furniture isnt exactly ideal. This guide offers a solution: 10 easy-to-build emergency […]
Car Interior Lights Delay Off Circuit
This circuit will keep the car interior lights switched ON for some time after the ignition is turned OFF so that the driver is able to exit the car comfortably […]
Brake Lights Monitor Circuit
This brake lights monitor circuit is used to monitor the brake lights of a car and tell if they are both working through an LED illumination. This ensures both road […]
Switching Lights ON/OFF from Different Locations
More often we need to switch an electric light or an electronic apparatus from various parts from the same building. A particular instance for this is hotel where this switch […]
Car Lights ON Warning Circuit
The article explains how to build a simple car lights ON warning circuit for enabling the driver to learn about the a car light accidentally left switched ON after a […]