EVDL Administrator wrote:
simple cycle-dropping charge controller ...
On further thought, somthing occurs to me - I don't think this circuit will
work properly with a filtered DC input (as from a bench supply). Maybe a
real EE (I'm just a hacker) will weigh in.
Yeah, that's an AC-only circuit. Not a very effective one, either. It
has a diode *and* a triac in series (2.5v drop out of 12v), and uses
only uses half-wave rectification. You only get about half the charging
current that a given transformer could have provided with a full-wave
rectifier.
It's basically a cost reduced version of the 1970's CitiCar charger. Use
an SCR in place of the triac, and put back the missing diode to make it
full-wave, and it would perform much better.
--
If we knew what we were doing, it wouldn't be called research, would it?
-- Albert Einstein
--
Lee Hart's EV projects are at http://www.sunrise-ev.com/LeesEVs.htm
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