Patents by Inventor Chien-Kuei Chan

Chien-Kuei Chan 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).

  • Measuring current generation circuit
    Patent number: 11139788
    Abstract: A measuring current generation circuit coupled to a setting resistor is disclosed. The generation circuit includes a first measuring terminal, a second measuring terminal, a first transconductance amplifier, a second transconductance amplifier and an output circuit. The first transconductance amplifier has a first input terminal and a second input terminal. The first input terminal is coupled to one terminal of the setting resistor. The second input terminal is coupled to another terminal of the setting resistor and coupled to the first measuring terminal. The second transconductance amplifier has a third input terminal and a fourth input terminal. The output circuit is coupled to output terminals of the first transconductance amplifier and the second transconductance amplifier respectively and has a first output terminal and a second output terminal. The first output terminal is coupled to the first input terminal. The second output terminal is coupled to the second measuring terminal.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: October 5, 2021
    Assignee: UPI SEMICONDUCTOR CORP.
    Inventors: Yi-Xian Jan, Chien-Hsien Tsai, Kuo-Jen Kuo, Chao-Chung Huang, Chien-Kuei Chan
  • MEASURING CURRENT GENERATION CIRCUIT
    Publication number: 20210013852
    Abstract: A measuring current generation circuit coupled to a setting resistor is disclosed. The generation circuit includes a first measuring terminal, a second measuring terminal, a first transconductance amplifier, a second transconductance amplifier and an output circuit. The first transconductance amplifier has a first input terminal and a second input terminal. The first input terminal is coupled to one terminal of the setting resistor. The second input terminal is coupled to another terminal of the setting resistor and coupled to the first measuring terminal. The second transconductance amplifier has a third input terminal and a fourth input terminal. The output circuit is coupled to output terminals of the first transconductance amplifier and the second transconductance amplifier respectively and has a first output terminal and a second output terminal. The first output terminal is coupled to the first input terminal. The second output terminal is coupled to the second measuring terminal.
    Type: Application
    Filed: June 17, 2020
    Publication date: January 14, 2021
    Inventors: Yi-Xian Jan, Chien-Hsien Tsai, Kuo-Jen Kuo, Chao-Chung Huang, Chien-Kuei Chan