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Just a quick question about capacitors
- Thread starter filonin_2
- Start date
Maybe.
Electrolytic capacitors are generally polarised. That means they have a positive and negative connection and are designed to work with a specific DC voltage across them.
Ceramic ones are unpolarised. This is why they are used in crossovers and the like.
However you can get or make unpolarised electrolytics. You make one by putting two in series with each other, one reversed. This is called 'back to back'. Of course you will half the capacitance so need two 2.2μF capacitors.
connect thus -_+ +_-
At a real pinch, an electrolytic will work for a while without a polarising voltage though its value will be uncertain.
Electrolytic capacitors are generally polarised. That means they have a positive and negative connection and are designed to work with a specific DC voltage across them.
Ceramic ones are unpolarised. This is why they are used in crossovers and the like.
However you can get or make unpolarised electrolytics. You make one by putting two in series with each other, one reversed. This is called 'back to back'. Of course you will half the capacitance so need two 2.2μF capacitors.
connect thus -_+ +_-
At a real pinch, an electrolytic will work for a while without a polarising voltage though its value will be uncertain.
