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:
Aug. 27, 2019
Filed:
Jan. 20, 2017
Astec International Limited, Kwun Tong, HK;
Israel Gomez Beltran, Antipolo, PH;
Siu Lun Wu, Tai Po, HK;
Astec International Limited, Kwun Tong, Kowloon, HK;
Abstract
A switched mode DC-DC power supply includes a power circuit having an input for receiving an input voltage, an output for providing an output voltage, and four power switches coupled between the input and the output. The four power switches are arranged in a full bridge configuration. The power supply further includes a control circuit coupled to the power circuit for providing a plurality of control signals to the power switches. The plurality of control signals have a variable frequency. The control circuit is adapted to vary the frequency of the plurality of control signals, and to vary a parameter of only two of the plurality of control signals to regulate the output voltage. The parameter is a duty cycle or a phase of said two control signals. Other example switched mode DC-DC power supplies are also disclosed.