Switched Capacitors with Inverted Break-Before-Make without External Filtering Load Capacitor

摘要

A charge pump circuit using more than one parallel source is described. A flying capacitor of the charge pump maintains a break-before-make time with respect to the switches within a side of the charge pump. A flying capacitor of the charge pump takes advantage of a make-before-break time with respect to the switches between the sides of the charge pump. This results in the shared load of the charge pump always receiving current from a flying capacitor. This slight change of control of the flying capacitor switching phases removes the need for a filtering capacitor within the charge pump.

主权项

1: A switched-capacitor power electronic circuit, comprising:
two or more charge pump circuits connected in parallel, configured to provide an output power; each of said charge pump circuits having a flying capacitor for providing a current to a load; and said switched-capacitor power electronic circuit is configured to connect some of said flying capacitors to said load, in inverted break-before make fashion, simultaneously after a charging period of one of said flying capacitors and prior to a charging period of the other said flying capacitor.