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Vintage threads from the first ten years
| previous: Tom Lennon I have many occasions to combine ca... -- 10/12/1999 4:37 AM |  |
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Re: Cap voltages in series/parallel
 10/12/1999 4:25 PM |
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Don Symes | Re: Cap voltages in series/parallel Caps in parallel gives you the sum of the capacitances (Ct = C1 + C2.....) and the LOWEST voltage of all the caps in parallel. Caps in series (just like AS and Benjamin said) add exactly like resistors in parallel (Ct = 1/[(1/C1) + (1/C2) + ...]) and give you the total voltage rating ov the caps in the stack. Caps in series in a power application also need a resistor in parallel with EACH cap in case one cap fails (usually fail by going open-circuit). Don't recall what value resistor, though. That last note ONLY applies when the voltage of the circuit exceeds the LOWEST rating in the stack. Anyine recall the R value? |
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| peter |