Normally, the refrigerator lights are yellow in colour and go bad very often. If you want a long-lasting white light for your refrigerator, this circuit is especially for you.The circuit is easy to install inside the refrigerator. Also, it consumes very little power compared to the traditional yellow bulb.
Circuit diagram :
White Light For Refrigerator Circuit Diagram
The circuit is transformerless and uses a capacitor for providing the power supply to the white LEDs. Mains input is fed to capacitor C1 and resistor R1, rectified by a bridge rectifier comprising diodes D1 through D4, and filtered by capacitor C2 to provide sufficient voltage to drive the white LEDs. Resistor R2 limits the current flowing through the LEDs. The circuit uses 16 bright white LEDs in 2×8 parallel connection configuration.
Assemble the circuit on a general purpose PCB along with 16 white LEDs. Connect the LEDs in series with resistor R2. Take out the two wires from the usual bulb connection and connect to the circuit. After connecting the supply wires, wrap electrical tape around the wires properly. Enclose the entire PCB (excluding LEDs) in a plastic box and wrap the box properly with tape to seal it against moisture.
Author : Uday Shende – Copyright : EFY
Post a Comment