[Diy_efi] Triac versus Relay - Knowledge please!
greg gravener
gravensg at yahoo.com
Tue May 6 18:16:27 GMT 2003
You can also reverse bias a diode across the coil of
the relay and lower the voltage spike to > .7 VDC, of
course this depends on the diode as well.
You might look at some of the newer MOSFET's they have
a low internal "R" and will carry a pretty good load
if heat sinked correctly.
--- bcroe at juno.com wrote:
> A Triac or SCR, once fired, will never turn off till
> power
> is removed from the circuit. They are not very
> useful
> for DC applications.
>
> The contact of a relay will not in itself generate a
> voltage
> spike. The coil will do some, but most things
> (including
> DIY-WB) are equipped to handle much worse (like your
>
> starter).
>
> Bruce Roe
>
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