Mutchus

This is a circuit for emergency lighting with LEDs that uses electricity from the telephone line . Generally the phone line has a DC voltage 48V and somewhere around 20 mA , and when the phone rings , the voltage rises to 96V AC . This works in a way that the phone line will not be busy while the LEDs are turned on and when you pick up the phone , the light goes off and lets you use your phone normally .  Emergency Light using Phone Line Circuit Diagram

Here i am going to present you a simple Emergency Light circuit diagram using 2 white Leds. Leds are convenient, cheap, cool and having long life. In this circuit we are using 2 Leds (white is prefered) to increase the brightness. The heart of this circuit consists of IC HEF 4093. The circuit is powered by a 9V battery. CIRCUIT DIAGRAM OF SIMPLE EMERGENCY LAMP/LIGHT COMPONENTS USED IN THE CIRCUIT IC HEF 4093 D 1N4001 R1 330KΩ R2 100Ω C 10μF Back To HOME For More