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NNTP-Posting-Date: Tue, 29 Oct 2002 23:02:22 -0600
From: "David Jones"
Subject: Re: how to tell when forward bias?
Date: Tue, 29 Oct 2002 23:58:21 -0500
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its unitelligable because I wrote it in a bigger area than it is viewed
"Bob Wilson" wrote in message
> In article , firstname.lastname@example.org
> >lets say theres a circuit like the following
> > ----------10k resistor-----------(gate to SCR) -------800ohm
> > | |
> >anode-(SCR)-cathode -------------------------(-)
> >lets say there is a -9 voltage on the right. wouldn't that make the SCR
> >gate negative? I've been told it makes it positive. and why would it be
> >positive? the gate is connected to both the positive and negative leads.
> >one person told me that the gate needs to be positive relative to the
> >cathode. well wouldn't that be true even if you disconnected the
> >lead from the gate of the SCR because the 800ohm resisitor would make the
> >voltage to the gate drop below the voltage of the cathode. That means it
> >would be positive right? I am totally and utterly confused here. I can't
> >understand even the simplest circuits well because of this junk. could
> >someone tell me a fool proof way to think of circuits like this,
> >transistors and such, so that I can't possibly get confused?
> >thanks. david
> You need to do a better job at ASCII art. Your "circuit" is
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