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I do not have have Anywhere Near The Knowledge you guys do......but there seems to be a lot of confusion between caps in series and a "non polarized" elytic.
Series caps are very common.....to solve a voltage concern (twice the capacitance and at least half the voltage required), the caps are connected in series and act as a normal elytic.
A non-polarized elytic sees very limited and intermittent use......as in a motor start.
Is that not correct.?
@Brownout
1uF is far too low a value for AC coupling of 60Hz. Try running your sim at 10kHz and you'll find the 'rectifying' effect magically vanishes.![]()
"Special capacitors designed for AC operation are available, usually referred to as "non-polarized" or "NP" types. In these, full-thickness oxide layers are formed on both the aluminum foil strips prior to assembly. On the alternate halves of the AC cycles, one of the foil strips acts as a blocking diode, preventing reverse current from damaging
1. What I am saying is.....to replace a given value cap, with two caps in series, you would use twice the capacitance and half the voltage to equal the cap in question.Hi cel, a couple things: capacitors in series are 1/2 the capacitance, and twice the votalge, as opposed to what you wrote ( this assumes the caps are of the same values ) Also, motor start caps can be made for intermittant use, but that has nothing to do with them being non-polarized. A non-polarized cap can be made for continuous use, just as any other capacitor.