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:
May. 23, 2023
Filed:
Sep. 03, 2021
Cypress Semiconductor Corporation, San Jose, CA (US);
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
A USB-power delivery integrated circuit controller includes: one or more driver circuits configured to control operation of a buck-boost converter; a regulator configured to regulate an internal supply voltage of the controller from a variable input voltage of the buck-boost converter in a regulation mode, and to pass the variable input voltage as the internal supply voltage without regulation in a bypass mode, the regulator being in the bypass mode when the variable input voltage is below the internal supply voltage, the regulator including an amplifier and a pass transistor configured to pass a current that is inversely proportional to an output of the amplifier; a clamping circuit configured to limit an overdrive voltage of the pass transistor during an inrush current event; and an override circuit configured to deactivate the clamping circuit in the bypass mode when the current passed by the pass transistor is below a current threshold.