Supercaps have advantages; however, when faced with charging energy storage devices in series, the end product designer may be faced with such problems as cell balancing, cell overvoltage damage while ...

Pulse-width-modulation (PWM) duty cycles above 50% require a compensating ramp — called slope-compensation — to avoid instability. With traditional slope-compensation solutions, it is difficult for ...

Designing a high-voltage capacitor charger or power supply up to a thousand volts is not a trivial task. A discrete solution using a general-purpose flyback PWM controller with an optocoupler, ...

Last time, we covered storing and charging a 3000 Farad supercapacitor to build a solar-powered, portable spot welder. Since then, I’ve made some improvements to the charging circuit and gotten it ...

Before Lunar New Year, I had ordered two 3000 F, 2.7 V supercapacitors from China for about $4 each. I don’t actually remember why, but they arrived (unexpectedly) just before the holiday.