Supply component for control circuit of e.g. direct current (DC)/DC converter, has driving unit that is provided to switch resistance element into second state, if state of charge of capacitor is above first threshold value

摘要

The supply component has a resistance element and a capacitor (C1) that are connected in series between a power supply voltage input (11) and a ground terminal (12). The resistance element is switched between two states having low series resistance value and high series resistance value. A power supply output (13) is arranged between the resistance element and capacitor. A driving unit is coupled to resistance element and capacitor. The driving unit is provided to switch the resistance element into second state, if a state of charge of capacitor is above a first threshold value. An independent claim is included for an electrical power converter.