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From: mc68020@gilsys.UUCP (Thomas J Keller)
Newsgroups: rec.railroad,sci.electronics
Subject: Re: Thyristors
Message-ID: <1152@gilsys.UUCP>
Date: Mon, 16-Nov-87 13:39:52 EST
Article-I.D.: gilsys.1152
Posted: Mon Nov 16 13:39:52 1987
Date-Received: Thu, 19-Nov-87 22:53:16 EST
References: <3226@aw.sei.cmu.edu> <3165@husc6.UUCP> <4948@sdcrdcf.UUCP> <2236@ihuxv.ATT.COM>
Distribution: na
Organization: Consequently Computers, Santa Rosa, Ca
Lines: 24
Keywords: mechanism of operation
Summary: thyristors....
Xref: mnetor rec.railroad:938 sci.electronics:1751

In article <2236@ihuxv.ATT.COM>, tedk@ihuxv.ATT.COM (Kekatos) writes:
> In article <4948@sdcrdcf.UUCP> darrelj@sdcrdcf.UUCP (Darrel VanBuer) writes:
> full on when proper gate trigger (current) is applied. I can not
> be turned off unless the load circuit is current is removed (as stated
> above). If I'm not mistaken, A Thyristor could be subsututed by
> two SCRs.    

   Ah, but you *ARE* mistaken!   SCRs, GTO-SCRs and TRIACS (among others)
are *ALL* thyristors.

   GTO-SCRs, by the by, *CAN* be turned off.

   SCR :	Silicon Controlled Rectifier
   GTO-SCR:	Gate-Turn-Off Silicon Controlled Rectifier


   A triac is essentially two SCRs back to back, with their gates connected
together.


-- 
Tom Keller 
VOICE  : + 1 707 575 9493
UUCP   : {ihnp4,ames,sun,amdahl,lll-crg,pyramid}!ptsfa!gilsys!mc68020