Here is a simple and powerful LED circuit that can be operated directly from the AC 100 volt to AC 230 Volts mains supply. The circuit can be used as mains power locator or night lamp etc.. The resistor R1,R2 and capacitor C1 provides necessary current limiting. The circuit is sufficiently immune against voltage spikes and surges.
parts
parts
D1 = 1N4007
D2 = 1N4007
D3 = 1N4007
D4 = 1N4007
R2 = 1M-1/2W
R1 = 470R-1/2W
C1 = 220nF-275 vAC
D5 = 5mm. Blue LED
Features
Small in size!
Blue LED operated on mains voltage
Suited for mains indicator or other pilot lamps
For safety guidance, stairs, corridors…
Special X2 safety capacitor
100Vac to 240Vac 50Hz or 60Hz Operated
Dimensions: 28x18mm / 1.10 x 0.71"
This circuit operates on a lethal power voltage. Mount the circuit in a protective cabinet prio to applying AC Power. Do not modify the circuit - Wait 10 minutes before touching the circuit after disconnecting the AC Power. This circuit is not intended for children.
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