220V Lamp Flasher

This is a simple 220V LED flasher circuit. This circuit is intended as a reliable replacement to thermally-activated switches used for Christmas tree lamp-flashing.

Component Parts:
R1 = 100K
R2,R5 = 1K
R3,R6 = 470R
R4 = 12K
C1 = 1000µF 25V
D1-D4 = 1N4007
D5 = SCR P0102D
Q1 = BC327
Q2 = BC337
SK1 = Female Mains socket

How it works:
The device formed by Q1, Q2 and related resistors triggers the SCR. The frequency of flashing is provided by R1, R2 and C1. If you want to change the flashing frequency value, you need to set C1 value. The range is from 100uF to 2200µF, please don’t modify R1 and R2.

The Best performances of this circuit are obtained with C1=470uF or 1000µF 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, for example C106D1 or TICP106D.

Source of circuit: redcircuits.com

Electronics Online:'220V Lamp Flasher' was posted under category: Schematic Diagrams, Simple Projects. Tags: 220v led flasher, lamp flasher, lamp flasher circuit, led flasher, led flasher circuit, led flasher schematic, You can follow any responses to this 220V Lamp Flasher Electronics Online through the RSS 2.0 feed.

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