Patents by Inventor Samual Chen

Samual Chen 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).

  • Rechargeable lithium battery protection device
    Patent number: 7560900
    Abstract: A rechargeable lithium battery protection device uses an external circuit to control charging or discharging a rechargeable lithium battery for preventing an overcharge or an overdischarge of the battery. The rechargeable lithium battery protection device includes a diagnostic circuit, a light coupling circuit, a balance circuit, and an identifier circuit. The battery diagnostic circuit checks the voltage of the chargeable battery and outputs a detect signal, and then the balance circuit determines whether or not the detect signal is an overcharge signal and discharges the battery. Meanwhile, the light coupling circuit adjusts an impedance of the light coupling circuit according to the detect signal for disconnecting the battery from the external circuit and the identifier circuit provides the position of a battery that sends out the signal.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: July 14, 2009
    Assignee: Amita Technologies Inc. Ltd.
    Inventors: Jing-Yih Cherng, Wei-Chen Wu, Steven Hou, Samual Chen
  • Rechargeable lithium battery protection device
    Publication number: 20070152637
    Abstract: A rechargeable lithium battery protection device uses an external circuit to control charging or discharging a rechargeable lithium battery for preventing an overcharge or an overdischarge of the battery. The rechargeable lithium battery protection device includes a diagnostic circuit, a light coupling circuit, a balance circuit, and an identifier circuit. The battery diagnostic circuit checks the voltage of the chargeable battery and outputs a detect signal, and then the balance circuit determines whether or not the detect signal is an overcharge signal and discharges the battery. Meanwhile, the light coupling circuit adjusts an impedance of the light coupling circuit according to the detect signal for disconnecting the battery from the external circuit and the identifier circuit provides the position of a battery that sends out the signal.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 5, 2007
    Inventors: Jing-Yin Cherng, Wei-Chen Wu, Steven Hou, Samual Chen