Patents by Inventor Lang Mao

Lang Mao 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: 11652407
    Abstract: A driving circuit for a switching capacitor converter, the driving circuit including: a first driver, a second driver, a third driver, and a fourth driver, configured to respectively drive a first power switch, a second power switch, a third power switch, and a fourth power switch according to corresponding logic control signals; and a charge pump circuit configured to raise a DC bus voltage by a first voltage to obtain a pumping voltage to supply power to the first driver, where the first, second, third, and fourth power switches are sequentially coupled in series between the DC bus voltage and a reference ground.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: May 16, 2023
    Assignee: Nanjing Silergy Micro Technology Co., Ltd.
    Inventor: Lang Mao
  • Patent number: 11442484
    Abstract: A voltage regulator can include: an input port with two terminals, and being configured to receive an input voltage; an output port with two terminals, and being configured to generate an output voltage, where the input port and the output port have a common ground potential; a group of input switches coupled in series between the two terminals of the input port, where a common node of every two adjacent input switches that form an input half-bridge topology is taken as an input switch node; at least one output half-bridge topology coupled between two terminals of the output port, where a common node of a high-side output switch and a low-side output switch in each output half-bridge topology is taken as an output switch node; and N storage capacitors, where each of the storage capacitors is coupled between one input switch node and one output switch node.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: September 13, 2022
    Assignee: Silergy Semiconductor Technology (Hangzhou) LTD
    Inventors: Wang Zhang, Chen Zhao, Lang Mao
  • Publication number: 20220181968
    Abstract: A driving circuit for a switching capacitor converter, the driving circuit including: a first driver, a second driver, a third driver, and a fourth driver, configured to respectively drive a first power switch, a second power switch, a third power switch, and a fourth power switch according to corresponding logic control signals; and a charge pump circuit configured to raise a DC bus voltage by a first voltage to obtain a pumping voltage to supply power to the first driver, where the first, second, third, and fourth power switches are sequentially coupled in series between the DC bus voltage and a reference ground.
    Type: Application
    Filed: November 9, 2021
    Publication date: June 9, 2022
    Inventor: Lang Mao
  • Publication number: 20210247791
    Abstract: A voltage regulator can include: an input port with two terminals, and being configured to receive an input voltage; an output port with two terminals, and being configured to generate an output voltage, where the input port and the output port have a common ground potential; a group of input switches coupled in series between the two terminals of the input port, where a common node of every two adjacent input switches that form an input half-bridge topology is taken as an input switch node; at least one output half-bridge topology coupled between two terminals of the output port, where a common node of a high-side output switch and a low-side output switch in each output half-bridge topology is taken as an output switch node; and N storage capacitors, where each of the storage capacitors is coupled between one input switch node and one output switch node.
    Type: Application
    Filed: April 27, 2021
    Publication date: August 12, 2021
    Inventors: Wang Zhang, Chen Zhao, Lang Mao
  • Patent number: 11022992
    Abstract: A voltage regulator can include: an input port with two terminals, and being configured to receive an input voltage; an output port with two terminals, and being configured to generate an output voltage, where the input port and the output port have a common ground potential; a group of input switches coupled in series between the two terminals of the input port, where a common node of every two adjacent input switches that form an input half-bridge topology is taken as an input switch node; at least one output half-bridge topology coupled between two terminals of the output port, where a common node of a high-side output switch and a low-side output switch in each output half-bridge topology is taken as an output switch node; and N storage capacitors, where each of the storage capacitors is coupled between one input switch node and one output switch node.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: June 1, 2021
    Assignee: Silergy Semiconductor Technology (Hangzhou) LTD
    Inventors: Wang Zhang, Chen Zhao, Lang Mao
  • Publication number: 20200218300
    Abstract: A voltage regulator can include: an input port with two terminals, and being configured to receive an input voltage; an output port with two terminals, and being configured to generate an output voltage, where the input port and the output port have a common ground potential; a group of input switches coupled in series between the two terminals of the input port, where a common node of every two adjacent input switches that form an input half-bridge topology is taken as an input switch node; at least one output half-bridge topology coupled between two terminals of the output port, where a common node of a high-side output switch and a low-side output switch in each output half-bridge topology is taken as an output switch node; and N storage capacitors, where each of the storage capacitors is coupled between one input switch node and one output switch node.
    Type: Application
    Filed: December 19, 2019
    Publication date: July 9, 2020
    Inventors: Wang Zhang, Chen Zhao, Lang Mao