Patents by Inventor Dah-Jiun Wei

Dah-Jiun Wei 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).

  • Thermal protection circuit and method for protecting power delivery circuit
    Patent number: 6621678
    Abstract: A thermal protection circuit arranged in an integrated circuit for protecting a power delivery is disclosed. The thermal protection circuit for protecting a power delivery circuit includes a first thermal sensing circuit exhibiting a negative temperature coefficient characteristic for sensing a temperature of the power delivery circuit and providing a first voltage, a second thermal sensing circuit exhibiting a positive temperature coefficient characteristic for transforming the temperature of the power delivery circuit to a second voltage, an amplifier electrically connected to the first voltage and the second voltage for providing a control signal, wherein the amplifier is a function of a voltage difference between the first voltage and the second voltage, and a switch electrically connected to an output of the amplifier for limiting a maximum current passing there through in response to the control signal.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: September 16, 2003
    Assignee: Analog Integrations Co., Ltd.
    Inventors: Dah-Jiun Wei, Ming-Nan Chuang
  • Thermal protection circuit and method for protecting power delivery circuit
    Publication number: 20020097541
    Abstract: A thermal protection circuit arranged in an integrated circuit for protecting a power delivery is disclosed. The thermal protection circuit for protecting a power delivery circuit includes a first thermal sensing circuit exhibiting a negative temperature coefficient characteristic for sensing a temperature of the power delivery circuit and providing a first voltage, a second thermal sensing circuit exhibiting a positive temperature coefficient characteristic for transforming the temperature of the power delivery circuit to a second voltage, an amplifier electrically connected to the first voltage and the second voltage for providing a control signal, wherein the amplifier is a function of a voltage difference between the first voltage and the second voltage, and a switch electrically connected to an output of the amplifier for limiting a maximum current passing there through in response to the control signal.
    Type: Application
    Filed: January 3, 2002
    Publication date: July 25, 2002
    Applicant: Analog Integrations Co., Ltd.
    Inventors: Dah-Jiun Wei, Ming-Nan Chuang