Re: 555 timer -> Relay -> Light problem
- From: default <default@xxxxxxxxxxxxx>
- Date: Thu, 07 Sep 2006 10:03:53 -0400
On 6 Sep 2006 19:07:39 -0700, "Echinos" <echinos@xxxxxxxxx> wrote:
I built a solid state flasher for my motorcycle - can flash from 200
ma to over 10 amps using a single 30 amp mosfet with no heatsink - I
cut the tab off the TO220 case to save room.
Impressive. I imagine such a mosfet might be a little pricey?
Cheers
Yeah boy, cost a whole 99 cents. Spec on the part is N channel, Vds
50V, Ids 38 amps, Rds (on) .038 ohms.
PN > BUK455-50B
another IRFZ34 50V, 30A, 05 ohms 89 cents
Pretty good lamp drivers - only downside may be that it takes a fast
blow fuse to protect it.
I dipped it in varnish and potted it in an empty dental floss case
with two wires for the connections. Only way to get a 10 ufd cap to
keep up the power while the circuit is busy making a short (shorting
its own power supply) was to use a mosfet.
Mounted it to the bike only to find there was an unused ground wire
there so it could use a two or three wire flasher - but it was fun to
tinker with.
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