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:
Dec. 23, 2025
Filed:
Oct. 16, 2023
O2micro Inc., Santa Clara, CA (US);
Guoxing Li, Sunnyvale, CA (US);
Gang Li, Chengdu, CN;
O2Micro, Inc., Santa Clara, CA (US);
Abstract
A power management system includes a first switching regulator, a second switching regulator, and a power delivery (PD) controller. The first switching regulator is configured to convert a first input power generated by a power source circuit to a first output power provided to a first connector, and generate a synchronization signal. The second switching regulator is configured to convert a second input power generated by the power source circuit to a second output power provided to a second connector, and synchronize its operating state with an operating state of the first switching regulator according to the synchronization signal. The PD controller is configured to control the first switching regulator to adjust the first output power according to a first negotiation signal provided by the first connector, and control the second switching regulator to adjust the second output power according to a second negotiation signal provided by the second connector.