Patents by Inventor Chunting Mi

Chunting Mi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11187758
    Abstract: The present disclosure is directed to method of automatic circuit fault detection. The method includes inputting a common periodic wave voltage to each of a plurality of battery cells of a battery pack. Recursively calculated correlation coefficients for each neighboring pair of the battery cells are used to determine whether a common battery cell of two neighboring pairs is faulty. The disclosure further describes equalizers for multi-cell battery packs and series-connected battery strings. The equalizers can include a coupling capacitor comprising a plurality of small plates coupled between the two series-connected metal-oxide-semiconductor field-effect transistors (MOSFETs) connected to each battery cell, and a larger plate, wherein the larger plate is commonly coupled to all of the small plates. A plurality of battery string groups can be equalized, where each cell includes one transformer winding and a MOSFET. The MOSFETs are driven using one pair of complementary pulse width modulation signals.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: November 30, 2021
    Inventors: Chunting Mi, Fei Lu, Bing Xia, Yunlong Shang
  • Publication number: 20190310321
    Abstract: The present disclosure is directed to method of automatic circuit fault detection. The method includes inputting a common periodic wave voltage to each of a plurality of battery cells of a battery pack. Recursively calculated correlation coefficients for each neighboring pair of the battery cells are used to determine whether a common battery cell of two neighboring pairs is faulty. The disclosure further describes equalizers for multi-cell battery packs and series-connected battery strings. The equalizers can include a coupling capacitor comprising a plurality of small plates coupled between the two series-connected metal-oxide-semiconductor field-effect transistors (MOSFETs) connected to each battery cell, and a larger plate, wherein the larger plate is commonly coupled to all of the small plates. A plurality of battery string groups can be equalized, where each cell includes one transformer winding and a MOSFET. The MOSFETs are driven using one pair of complementary pulse width modulation signals.
    Type: Application
    Filed: October 19, 2017
    Publication date: October 10, 2019
    Inventors: Chunting Mi, Fei Lu, Bing Xia, Yunlong Shang