The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2024
Filed:
Nov. 19, 2021
Halo Microelectronics International, Campbell, CA (US);
Rui Liu, Fremont, CA (US);
Halo Microelectronics International, Campbell, CA (US);
Abstract
A control circuit is configured to control a switched capacitor converter to operate in a pulse frequency modulation (PFM) mode. The control circuit includes a one-shot circuitry configured to generate a one-shot pulse to drive the switched capacitor converter to operate in the PFM mode. A PFM mode comparator is coupled to the one-shot circuitry, and is configured to trigger, based on an output voltage of the switched capacitor converter, the one-shot circuitry to generate the one-shot pulse. The switched capacitor converter may be controlled to enter or exit the PFM mode operation based on a trailing current of a flying capacitor of the switched capacitor converter, an output current of the switched capacitor converter, a charging time duration of the flying capacitor when the switched capacitor converter is operating in the PFM mode, or a PFM switching period of the switched capacitor converter operating in the PFM mode.