Re: Wiring 555 Timer as Signal Flasher Honda CT90?
- From: default <default@xxxxxxxxxxxxx>
- Date: Wed, 29 Aug 2007 19:49:40 -0400
On Wed, 29 Aug 2007 11:15:15 -0700, bennet@xxxxxxxxxxxxxxxxxx wrote:
PROBLEM: The replacement circuit ( see this link -http://gerryo.wordpress.com/2007/08/29/555-relay-switching-circuit/ -
to the diagram in my blog) works well with the single exception the
relay and the 555 are always cycling at a 1 hertz rate even when the
signal lights are in the OFF position. This is unecessary use of
limited battery power and will wear the components out quickly.
Well if the relay isn't switching current it should last awhile or a
few million cycles anyway.
I had a need for a flasher that would work the lights on my bike after
I put leds in the front turn signals. I designed one around a mosfet
with a 10 UF cap to hold the mosfet on while the mosfet was shorted -
no connection to the ingnition source and only two wires in series
with the turn signals.
Only about 7 parts and works like a champ - will post the schematic on
alt.binaries.schematics.electronic if you want.. No moving parts -
works from 11 volts to 15 volts and from 100 ma load to 10+ amps load
with no change in flash rate. Two transistors one zener diode and a
few resistors and one cap.
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