Re: SCR instead of MOSFET?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

Matt; I am with you on this one. Ihave used SCR's in CD ignitions with good
results. The fact that 555are now giving up suggests no isolation between
the timer and the MOSFET or the power circuit. a simple 7812 regulator
should help and an opto isolator between. The use of a SCR requires some way
to disconect power from the output so the SCR will turn off. I use a choke
in series with the DC supply or 1/2 wave dc to disconect.
 Robert  H

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Wed, 26 Dec 2001 21:12:35 -0700
> To: tesla-at-pupman-dot-com
> Subject: SCR instead of MOSFET?
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Wed, 26 Dec 2001 21:16:12 -0700
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Fucian-at-aol-dot-com>
> 
> Hi all, i am wondering if an SCR would work as well as a MOSFET?Since these
> MOSFETs have SO many ways to die, maybe an SCR would do better?I have some
> big SCRs.Studs and hockey puck types.So they can take WAY more than a
> MOSFET.And all i got to worry about is CEMF.Is there any reason why it
> shouldnt work?
> 
> Thanks,
> Matt
> 
> 
>