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| Ev Archive for October 2002 |
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| 1331 messages, last added Tue Oct 22 14:03:22 2002 |
[Date Index][Thread Index]
Heater element switching
I used low side mosfets to switch my two cores in four stages. When off the
heater circuit is isolated by an ordinary 250VAC relay, but it never has to
switch current. I used a linear regulator to derive the gate drive, but there
are photovoltaic isolators that could give a much simpler drive to the fets.
Paul Compton
BVS technical officer www.bvs.org.uk
www.sciroccoev.co.uk
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