john freese wrote:
Hello,
I built a polarity switching circuit. Does _any body_ know how often
should the circuit switch? And why? Thank you in advance. John.
For around 20 volts, once per minute seems about optimum. At 10,000
volts, 120 times a second is about optimum. The higher the voltage the
higher the frequency. It basically has to do with how far the ions
travel from the electrode before reversal takes place, and the lower the
voltage, the longer it takes. If they do not travel far enough, then
they plate right back out on the electrode on the next half cycle, and
if you go too slow, it can cause some buildup of crud.
Marshall
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