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:
Jan. 08, 2019
Filed:
Sep. 07, 2016
Texas Instruments Incorporated, Dallas, TX (US);
Bin Gu, Sunnyvale, CA (US);
Michael Douglas Seeman, San Jose, CA (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Disclosed examples include switching power converters, control methods and ripple filter circuits in which first and second switches are connected in series across first and second DC bus nodes, with an inductor connected to a switching node joining the first and second switches and a storage capacitor between the inductor and the second DC bus node. A control circuit operates the switches to alternately transfer ripple energy from a DC bus capacitor of the DC bus circuit through the inductor to the storage capacitor, and then to transfer ripple energy from the storage capacitor through the inductor to the DC bus capacitor to regulate the ripple voltage of the DC bus circuit, and the control circuit provides hysteretic control of the absolute value of the inductor current between a first value and a higher second value during transfer of ripple energy between the DC bus capacitor and the storage capacitor.