Re: Q - Driving HV DC pulses? (fwd)

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Original poster: <sroys@xxxxxxxxxxxxxxxxx>



---------- Forwarded message ----------
Date: Fri, 07 Oct 2005 18:45:08 -0400
From: Jeff Bullock <jeff@xxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Q - Driving HV DC pulses? (fwd)

Hi Malcom,

Thanks for the correction. My knowledge is limited on these issues and I'm
here to learn. So a triode is more like a MOSFET.

> ---------- Forwarded message ----------
> Date: Fri, 7 Oct 2005 16:47:38 +1300
> From: Malcolm Watts <m.j.watts@xxxxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: Q - Driving HV DC pulses? (fwd)

> > Good info. Using tubes are not by any means a the best choice for this
> > application. Solid-state solutions are ideal. Tubes may, however,
> > become necessary to switch the high voltages quickly. BTW, it seems
> > like the triac is a close solid-state relative to the triode.

> It isn't even close. For one thing, a triode doesn't latch on. For
> another, saturation/conduction voltages are totally different. A
> MOSFET might be considered a close relative of a triode but even
> there the dynamic input capacitances and saturation voltage are quite
> different.