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:
Feb. 01, 2022
Filed:
Sep. 11, 2019
Richard Landry Gray, Taipei, TW;
Wei-guang Qiu, Beijing, CN;
Richard Landry Gray, Taipei, TW;
Wei-Guang Qiu, Beijing, CN;
Other;
Abstract
A cell balancing battery module comprising: a cell string having N ports in series; a maximum and minimum finding circuit coupled with the N ports and the at least one switched capacitor comparison circuit for performing a voltage comparison procedure to find a highest voltage port number and a lowest voltage port number, the voltage comparison procedure including a plurality of voltage comparison operations using two phases of at least one switched capacitor comparison circuit; a charge and discharge connecting circuit coupled with the N ports and an inductor, and being configured to select a highest voltage port out of the N ports according to the highest voltage port number to deliver energy to the inductor, and select a lowest voltage port out of the N ports according to the lowest voltage port number to receive energy released from the inductor.