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Supercapacitor Voltage Draw Answered

If I am charging a super capacitor with buck converter, that is a 1 amp, 1-18 volt output, and the capacitor is rated for 2.5 volts, how do I stop the buck converter from feeding it more than 2.5 volts? When I attach the capacitor to my digital power supply, it starts charging, and the voltage slowly increase to be more than 2.5 volts, at which point I turn it off. I was wondering will it draw more than 2.5 volts from my buck converter? If so how do I stop it?



3 years ago

It is called constant voltage driver, also LM317's or similar types can be used for this.
You might want to read up on capacitors and SC's in general before you continue to wreck the one you have ;)