220V LED Flasher circuit diagram

Posted on Feb 5, 2014

This is a 220V LED flasher circuit which is intended as a reliable replacement to thermally-activated switches used for Christmas tree lamp-flashing. This a cheap circuit and easy to build. R1_ 100K R2, R5_ 1K R3, R6_ 470R R4_ 12K C1_ 1000 F 25V D1-D4_ 1N4007 D5_ SCR P0102D Q1_ BC327 Q2_ BC337 SK1_ Female Mains socket The device formed by Q1, Q2 an

220V LED Flasher circuit diagram
Click here to download the full size of the above Circuit.

d related resistors triggers the SCR. The flashing frequency is provided by R1, R2 and C1. To change flashing frequency value, just set C1 value from 100 to 2200 F, don`t modify R1 and R2. Best performances are obtained with C1=470 or 1000 F and R4=12K or 10K. Due to low consumption of normal 10 or 20 lamp series-loops, very small and cheap SCR devices can be used, e. g. C106D1 or TICP106D.

Leave Comment

characters left:

New Circuits



Popular Circuits

Digital Volume Control with DS1669
Hf Low-Power Cw Transmitter
ICX424 Minimal Head (A2076) Manual
usb car charger adapter circuit design
Recovery Node
whats wrong my h bridge drivers
Single-Phase Inverters
A Half Bridge Buck Boost Converter with high side N-type MOSFET
Apply a Pulse to a Speaker Using a Capacitor
Mini High-Voltage Generator
GSM/GPS Localizer with SIM908 module
High Voltage Electrolytic Capacitor Reformer
Circuit FM transmitter for MP3 and MP4 Player 2n2218 and 741 opamp
Voice remote control switch circuit
Schematic IR2130 for 1kw high pressure mercury lamp ballast system