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Re: gEDA-user: SSRs vs. discrete triacs

On Sat, 3 Mar 2007 10:34:35 -0500
Randall Nortman <geda-lists@xxxxxxxxxxxxxxx> wrote:

> Is there any reason to prefer the integrated
> MOSFET SSRs?

The biggest advantage of FET SSRs is the possibility to switch off when
you want. Simple Thyrister/Triacs mostly stay on for the rest of the
cycle.

At 24V, you probably want MOSFETs because of the lower voltage drop and
less dissipation. A th/triac easily drops 1.5 - 2V which would mean
heatsinks. 

John


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