Home › Magazines › 2005 › November › Solid-state Turn Indicator

Solid-state Turn Indicator

FET replaces relay

Published in issue 348, November 2005

Some motorcyclists not only enjoy tweaking the engine but also dabble in electronics. The author encountered problems with the mechanical turn indicator on his Harley Davidson bike and came up with an all-electronic alternative. As it turned out (pun intended) , the little circuit is very useful for cars, too.

Components

Resistors:

R1 = 1kΩ

R2,R3 = 150kΩ

R4 = 100kΩ

R5,R6 = 10kΩ

Capacitors:

C1 = 100µF or 150µF, 16V, radial

C2 = 270nF

Semiconductors:

D1 = 1N4001

D1,D2 = 1N4148

T1 = IRFZ34N

T2,T3 = BC558

Miscellaneous:

PCB, ref. 050120-1 from The PCBShop

Click below to download a PDF copy of this article from Elektor magazine.

	Downloads
	PDF Article (U051170.pdf)
	10 Elektor Credits
	PCB layout (050120-PCB.pdf)
	10 Elektor Credits
	Order from Elektor
	PCB, bare
	050120-1

Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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Home › Magazines › 2005 › November › Solid-state Turn Indicator

Solid-state Turn Indicator

FET replaces relay

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Home › Magazines › 2005 › November › Solid-state Turn Indicator

Solid-state Turn Indicator

FET replaces relay

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