The capacitor auto-discharge module presented in this article is simply a failsafe module that automatically discharges the buffer/filter capacitor in a power supply circuit when its input supply is ...

While passive precharge employs a power resistor to create an RC circuit that charges the capacitor asymptotically, active precharge can employ a switching converter with a buck topology that uses ...

A mini dc-dc boost converter and filter scheme using a clever arrangement of capacitor and high-beta transistor provides the 48-V phantom power source needed for a condenser microphone. Professional ...