Auxiliary Power Supplies

摘要

The invention relates to methods for supplying current to an auxiliary power supply, where the auxiliary supply is connected in parallel to a first switch of a switching regulator and the parallel connection of the auxiliary supply comprises a diode and a second switch.

主权项

1. A method for supplying current to an auxiliary supply of a switching regulator, wherein the auxiliary supply is connected in parallel to a first switch of the switching regulator are wherein the parallel connection of the auxiliary supply comprises a diode and a second switch, the method comprising:
concurrently turning off the first switch and turning on the second switch; providing current to the auxiliary supply from the voltage source; charging a capacitor with current from the voltage source through the second switch and diode; concurrently turning on the first switch and turning off the second switch; and providing current to the auxiliary supply from the capacitor.