Patents by Inventor Seung Chui Pyo

Seung Chui Pyo 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).

  • Bias circuit and amplifying device having temperature compensation function
    Patent number: 11043923
    Abstract: A bias circuit includes a bias current circuit and a temperature compensation circuit. The bias current circuit includes a first resistor and a first transistor, in a first current path connected between a current terminal of a reference current and a ground, and connected to each other in series, and a second transistor in a second current path connected between the current terminal and the ground, and having a base connected to a collector of the first transistor. The temperature compensation circuit includes a second resistor in the second current path, and connected between an emitter of the second transistor and a base of the first transistor and having a first thermal coefficient, and a third resistor included in the second current path, and connected between the base of the first transistor and the ground and having a second thermal coefficient, different from the first thermal coefficient.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: June 22, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Geun Yong Lee, Seong Geun Kim, Hyeon Seok Hwang, Seung Chui Pyo