Tuesday, August 28, 2012

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IRF530 Fet Flasher Circuit

This is a simple fet flasher circuit that can be used for flashing 12V lamps especially that is used on automobiles.The flasher circuit is based on transistor BC557 and MOSFET IRF530 where the Q2 provides the necessary drive for the lamp.Any number of bulbs can be flashed using this circuit provided that the total load must not exceed 42 Watts. Circuit of this kind are particularly suited for road, traffic and yard alerts and in all cases where mains supply is not available but a powerful flashing light is yet necessary
IRF530 Fet Flasher Circuit
Flashing frequency can be varied within a limited range by changing C1 value.

List Componet
R1 : 6K8
R2 : 220K
R3 : 22K
C1 : 100µF/25V
C2 : 10µF/25V
D1 : 1N4002
Q1 : BC557
Q2 : IRF530
LP1: 12V/21W Car Filament Bulb 
SW1: SPST Switch (3 Amp minimum)

This circuit from:   www.redcircuits.com

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