Patents by Inventor Pei-Ting Yang

Pei-Ting Yang 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).

  • Patent number: 10892675
    Abstract: A voltage converting circuit and a control circuit thereof are provided. The control circuit includes a comparator, a clock generator, and a boost circuit. The comparator compares an input voltage with an output voltage to generate a comparison signal. The clock generator generates a clock signal according to the comparison signal to enable the clock signal to have a first frequency in a first time interval and to have a second frequency in a second time interval. The first frequency is higher than the second frequency. The first time interval occurs before the second time interval. The boost circuit receives the clock signal, pulls up a control signal of a driving switch in the first time interval according to a first driving capability, and generates the control signal in the second time interval according to a second driving capability. The first driving capability is greater than the second driving capability.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: January 12, 2021
    Assignee: Excelliance MOS Corporation
    Inventors: Ching-Tsan Lee, Pei-Ting Yang, Ming-Hung Chien
  • Patent number: 10826491
    Abstract: A control circuit of a load switch including a charge pump circuit, an oscillator, and a current signal generator is provided. The charge pump circuit generates a control signal according to a clock signal. The load switch is turned on or turned off according to the control signal. The oscillator generates the clock signal according to a control current. The current signal generator provides a resistor string to receive a power voltage. The resistor string of the current signal generator generates a sensed current or a sensed voltage according to the power voltage. The current signal generator generates the control current according to a reciprocal of the sensed current or a square of the sensed voltage. A frequency of the clock signal is negatively related to the power voltage.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: November 3, 2020
    Assignee: Excelliance MOS Corporation
    Inventors: Ming-Hung Chien, Pei-Ting Yang, Ching-Tsan Lee
  • Patent number: 10693453
    Abstract: A power switch circuit including first and second transistors, and a control circuit is provided. A first end of the first transistor serves as an input terminal of the power switch circuit. A second end of the first transistor is coupled to a node. A control end of the first transistor receives a first control voltage. A first end of the second transistor serves as an output terminal of the power switch circuit. A second end of the second transistor is coupled to the node. A control end of the second transistor receives a second control voltage. The control circuit detects a voltage of the node to determine a type of series connection between the first and second transistors, and generates the first and second control voltages to control a turned-on state of another of the first and second transistors after turning on one of the first and second transistors.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: June 23, 2020
    Assignee: Excelliance MOS Corporation
    Inventors: Ching-Tsan Lee, Ke-Wei Wu, Pei-Ting Yang
  • Publication number: 20190372452
    Abstract: A voltage converting circuit and a control circuit thereof are provided. The control circuit includes a comparator, a clock generator, and a boost circuit. The comparator compares an input voltage with an output voltage to generate a comparison signal. The clock generator generates a clock signal according to the comparison signal to enable the clock signal to have a first frequency in a first time interval and to have a second frequency in a second time interval. The first frequency is higher than the second frequency. The first time interval occurs before the second time interval. The boost circuit receives the clock signal, pulls up a control signal of a driving switch in the first time interval according to a first driving capability, and generates the control signal in the second time interval according to a second driving capability. The first driving capability is greater than the second driving capability.
    Type: Application
    Filed: August 20, 2018
    Publication date: December 5, 2019
    Applicant: Excelliance MOS Corporation
    Inventors: Ching-Tsan Lee, Pei-Ting Yang, Ming-Hung Chien
  • Patent number: 10218344
    Abstract: A voltage conversion circuit and a control circuit thereof are provided. The control circuit includes a voltage selection circuit, a buffer circuit, and a pull-down switch. The voltage selection circuit receives an input voltage and an output voltage, and selects a smaller voltage value as a selected voltage from the input voltage and the output voltage. The buffer circuit receives the selected voltage, and provides the selected voltage as a reference voltage. A control end of the pull-down switch receives an enable signal, so that the pull-down switch is switched on or switched off based on the enable signal. The pull-down switch is switched on based on the enable signal, to pull down a voltage at a control end of a driver switch to the reference voltage and switch off the driver switch.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: February 26, 2019
    Assignee: Excelliance MOS Corporation
    Inventors: Ching-Tsan Lee, Pei-Ting Yang