New answers tagged reverse-polarity
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Safety of a polarized DC breaker between the battery and the inverter
The charging current (even into a short circuit) will likely be a few orders of magnitude smaller then the current resulting from short circuiting the battery bank.
It is also likely that the charging ...
- 16.1k
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Safety of a polarized DC breaker between the battery and the inverter
Don't magnetic blowouts use the Lorentz force? It sounds like you think the magnet attracts or repels the arc which is not the way the directions work.
If it's an electromagnet then your concerns aren'...
- 46.4k
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Charging supercapacitors with reversed polarity
Putting electrolytic capacitors with reverse polarity will almost certainly with prolonged use cause them to explode and the fluids of the electrolyte will come out which is dangerous.
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Charging supercapacitors with reversed polarity
Additionally to the note found in the document linked in Justme's answer:
All ultracapacitors have a positive and negative polarity. Please check the
polarity indicated on the label before use and do ...
- 6,113
5
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Accepted
Charging supercapacitors with reversed polarity
Electrolytic capacitor polarization is initially set at the factory by applying voltage to form the insulating oxide layer.
That is why caps have a polarity and these standard supercaps are no ...
- 87.3k
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Charging supercapacitors with reversed polarity
I wonder if these are non-polarized since both electrodes in this part number are carbon. If you see no ill-effects, that may confirm this but the double-layer-effect may be more advantageous in one ...
- 134k
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Selecting series resistor for a Zener diode
Your analysis is correct. If the zener is biased with a high resistance, it may regulate at a little lower than the nominal voltage. This means the MOSFET doesn't have as much gate drive and its on-...
- 12.5k
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Selecting series resistor for a Zener diode
Well, that sound reasonable. Personally, within those constraints I’d probably pick the 10V zener and 1M or less, but I’d check and see what typically happens at low zener current and very high ...
- 328k
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