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:
Nov. 12, 2024
Filed:
May. 24, 2022
Murata Manufacturing Co., Ltd., Kyoto, JP;
Gary Chunshien Wu, San Diego, CA (US);
Gregory Szczeszynski, Nashua, NH (US);
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
Power converter circuits and methods that include self-timed bootstrap capacitor power sources. Added to a power converter having a diode stack for charging bootstrap capacitors are three types of supplemental circuit blocks: a trigger block, a trigger-bypass block, and a bypass block. In operation, adjacent supplemental circuit blocks work in pairs. The upper block of the pair functions, when triggered, to charge an associated bootstrap capacitor by connecting the top plate of its associated bootstrap capacitor to the top plate of the bootstrap capacitor associated with the lower block of the pair, essentially bypassing the diode associated with the upper block. In addition, the lower block of the pair functions to initiate (trigger) the bypass function of the upper block. The bypass function of the upper block automatically terminates when the connected bootstrap capacitors are disconnected and their respective voltages 'fly' apart, or is controllably terminated.