Patents by Inventor Hung-An Hsu

Hung-An Hsu 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).

  • Publication number: 20120256598
    Abstract: A battery pack detection circuit that can detect cold or false welding, charging status, and discharging status is disclosed. The battery pack detection circuit comprises a driving circuit electrically connected to a switch unit outside the battery pack detection circuit; a voltage detection and comparison circuit electrically connected to a multi-cell battery pack having a plurality of battery cells outside the battery pack detection circuit, wherein the voltage detection and comparison circuit is configured to detect cell voltages across each of the battery cells under at least two circuit connection conditions and compare the differences in cell voltage with a predetermined value, wherein the differences in cell voltage are derived from a subtraction operation performed on the cell voltages measured under the at least two circuit connection conditions; and an interface and control unit configured to receive commands from a SMBUS and provide a signal to a detection load.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Applicant: NEOTEC SEMICONDUCTOR LTD.
    Inventors: Hung An HSU, Hui Te Hsu
  • Patent number: 7786695
    Abstract: A battery management system includes an external non-volatile memory and a battery management chip with embedded SRAM, CPU, ROM, and ROM_RAM encoder. The chip communicates with the non-volatile memory via standard protocols. While the battery management system is powered on or reset, a battery management program stored in the non-volatile memory is loaded to the embedded SRAM and the executed by CPU. As turning off this system, the program in the SRAM is then restored back the non-volatile memory. A battery protection IC is optionally embedded in the chip or externally connected with this chip to protect the battery from over-/under-voltage, over-current and short-circuit in both charge and discharge.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: August 31, 2010
    Assignee: Neotec Semiconductor Ltd.
    Inventors: Chang-Yu Ho, Hung-An Hsu, Sei-Ching Yang
  • Publication number: 20100217552
    Abstract: A battery management system for measuring remaining charges in a battery packet with multi-cells is disclosed. The battery comprises electric property and non-electric property measuring modules, multi-cells, a slave communication protocol controller, and a battery protective circuit. The portable device comprises an embedded controller and a charge gauge module and a master communication protocol controller. The parameters demanded for calculating the remaining charges of the multi-cells are measured by the electric property and non-electric property measurement modules and transferred through the SMBus interface to the embedded controller and the charge gauge module. Therefore, the battery management system can manage the remaining charges of every cell in the multi-cells without a microprocessor in the battery packet.
    Type: Application
    Filed: February 22, 2010
    Publication date: August 26, 2010
    Applicant: NEOTEC SEMICONDUCTOR LTD.
    Inventors: Hung-An Hsu, Tzong-Liang Shiue
  • Publication number: 20080197809
    Abstract: A battery management system includes an external non-volatile memory and a battery management chip with embedded SRAM, CPU, ROM, and ROM_RAM encoder. The chip communicates with the non-volatile memory via standard protocols. While the battery management system is powered on or reset, a battery management program stored in the non-volatile memory is loaded to the embedded SRAM and the executed by CPU. As turning off this system, the program in the SRAM is then restored back the non-volatile memory. A battery protection IC is optionally embedded in the chip or externally connected with this chip to protect the battery from over-/under-voltage, over-current and short-circuit in both charge and discharge.
    Type: Application
    Filed: October 3, 2007
    Publication date: August 21, 2008
    Inventors: Chang-Yu HO, Hung-An Hsu, Sei-Ching Yang