Mini electronics :: Ac powered white led lamp

AC Powered White LED Lamp

This is the simple circuit of white LED lamp that can be directly powered from AC Supply. Full Wave rectifier method used to convert AC to DC. In this, the 220ohm 1/2W resistor limits the current, 470K ohm 1/4W resistor, 470nF 400V capacitor and 1N4007 diodes are used to step down and rectification and it gives 40mA.

47uF 50V capacitor used as filter it removes ripples in the DC supply. White LEDs are protected from high volt by zener diode(16V)

Note :
High Volt warningWarning...!
High Voltage circuit. Handle with Care to construct this circuit








Post Your Comments Here :
 


User Login

Username :


Password :