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:
Apr. 23, 2019
Filed:
Apr. 09, 2016
Hengchun Mao, Allen, TX (US);
Xuezhong Jia, Allen, TX (US);
Hengchun Mao, Allen, TX (US);
Xuezhong Jia, Allen, TX (US);
Other;
Abstract
A device to drive a plurality of power switches in a power converter with an input voltage port having an input voltage includes a drive resonant tank, a switch network, a control block configured to control the turn-on and turn-off of drive switches, and an output port. The drive resonant tank has a resonant inductor, and a resonant capacitor which includes an input capacitance of a power switch. The switch network has a plurality of drive switches, which are controlled such that the drive resonant tank goes through a resonant state and a pseudo clamp state consecutively during a switching period. A gate drive voltage of a power switch fluctuates slightly during the pseudo clamp state. The output port has two terminals coupled to a gate and a source of a power switch respectively.