Patents by Inventor Binci Xu

Binci Xu 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: 10782718
    Abstract: A method for automatically testing a voltage regulator, including: providing an auto-test setting to a test master, wherein the auto-test setting specifies an auto-sweep setting and a loop comprising an ordered set of serial command frames; producing, in the test master, a test suite comprising a plurality of serial command frames by executing the loop multiple times according to the auto-sweep setting until an array of a preset variable corresponding to the auto-sweep setting is traversed, wherein the preset variable is changed in each iteration of the loop; sequentially transmitting every serial command frame to the voltage regulator; and receiving every resulting behavior of the voltage regulator when operated in accordance with the every serial command frame.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: September 22, 2020
    Assignee: Hangzhou MPS Semiconductor Technology Ltd.
    Inventors: Wangmiao Hu, Lijie Jiang, Qian Ouyang, Qingqing Zheng, Binci Xu, Jinghai Zhou, Eric Yang
  • Patent number: 10756621
    Abstract: A voltage regulator provides an output voltage and an output current. The output voltage decreases with an increase of the output current when the output current is lower than a current breaking point, and the output voltage is maintained when the output current reaches the current breaking point.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: August 25, 2020
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Binci Xu, Yongliang Wang, Tao Zhao, Lijie Jiang
  • Patent number: 10673336
    Abstract: A DC-DC converter with droop regulation for better transient performance. The DC-DC converter includes a switching circuit, a comparison circuit and a logic control circuit. A differential voltage indicative of an output voltage of the switching circuit, and a droop voltage indicative of an output current of the switching circuit, are generated. A high-pass filtered signal is obtained by high-pass filtering the droop voltage. The comparison circuit responds to the differential voltage, a reference voltage and the high-pass filtered signal to generate a set signal. The logic control circuit generates a control signal based on the set signal to control the switching circuit.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: June 2, 2020
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Lijie Jiang, Xiaokang Wu, Binci Xu
  • Patent number: 10523107
    Abstract: A method for controlling a voltage regulator is receiving a voltage identification code which has a pulse width modulation signal, providing a duty signal via measuring a duty cycle of the pulse width modulation signal, calculating a target voltage based on the duty signal, providing a reference signal based on the duty signal and the target voltage. If it is judged that the duty cycle of the pulse width modulation signal increases, the reference signal is restricted increasing or keeping its value without decreasing, and if it is judged that the duty cycle of the pulse width modulation signal decreases, the reference signal is restricted decreasing or keeping its value without increasing.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: December 31, 2019
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Binci Xu, Lijie Jiang, Chao Liu, Tao Zhao
  • Patent number: 10498241
    Abstract: A control method of multi-phase converters, wherein the multi-phase converter includes a plurality of switching circuits coupled in parallel between an input voltage and a load. The control method includes: comparing a feedback signal with a reference signal to generate a comparison signal, wherein the feedback signal is indicative of an output voltage provided to the load; determining the number of switching circuits for power operation based on the load current; detecting a period of the comparison signal; comparing the detected period of the comparison signal with a time threshold to determine whether a transient rise of load current has occurred; and getting all the switching circuits into power operation if a transient rise of load current is detected.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: December 3, 2019
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Xiaokang Wu, Lijie Jiang, Binci Xu
  • Publication number: 20190341843
    Abstract: A voltage regulator provides an output voltage and an output current. The output voltage decreases with an increase of the output current when the output current is lower than a current breaking point, and the output voltage is maintained when the output current reaches the current breaking point.
    Type: Application
    Filed: April 19, 2019
    Publication date: November 7, 2019
    Inventors: Binci Xu, Yongliang Wang, Tao Zhao, Lijie Jiang
  • Patent number: 10404153
    Abstract: A method for controlling a voltage regulator is receiving a voltage identification code which has a pulse width modulation signal, providing a duty signal via measuring a duty cycle of the pulse width modulation signal, calculating a target voltage based on the duty signal, providing a reference signal via filtering the duty signal by a first filter if the voltage identification code varies, and providing the reference signal via filtering the duty signal by a second filter if the reference signal is in a range determined by the target voltage.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: September 3, 2019
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Binci Xu, Lijie Jiang, Chao Liu, Tao Zhao
  • Publication number: 20190207518
    Abstract: A control method of multi-phase converters, wherein the multi-phase converter includes a plurality of switching circuits coupled in parallel between an input voltage and a load. The control method includes: comparing a feedback signal with a reference signal to generate a comparison signal, wherein the feedback signal is indicative of an output voltage provided to the load; determining the number of switching circuits for power operation based on the load current; detecting a period of the comparison signal; comparing the detected period of the comparison signal with a time threshold to determine whether a transient rise of load current has occurred; and getting all the switching circuits into power operation if a transient rise of load current is detected.
    Type: Application
    Filed: December 20, 2018
    Publication date: July 4, 2019
    Inventors: Xiaokang Wu, Lijie Jiang, Binci Xu
  • Publication number: 20190199212
    Abstract: A DC-DC converter with droop regulation for better transient performance. The DC-DC converter includes a switching circuit, a comparison circuit and a logic control circuit. A differential voltage indicative of an output voltage of the switching circuit, and a droop voltage indicative of an output current of the switching circuit, are generated. A high-pass filtered signal is obtained by high-pass filtering the droop voltage. The comparison circuit responds to the differential voltage, a reference voltage and the high-pass filtered signal to generate a set signal. The logic control circuit generates a control signal based on the set signal to control the switching circuit.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 27, 2019
    Inventors: Lijie Jiang, Xiaokang Wu, Binci Xu
  • Publication number: 20180356848
    Abstract: A method for automatically testing a voltage regulator, including: providing an auto-test setting to a test master, wherein the auto-test setting specifies an auto-sweep setting and a loop comprising an ordered set of serial command frames; producing, in the test master, a test suite comprising a plurality of serial command frames by executing the loop multiple times according to the auto-sweep setting until an array of a preset variable corresponding to the auto-sweep setting is traversed, wherein the preset variable is changed in each iteration of the loop; sequentially transmitting every serial command frame to the voltage regulator; and receiving every resulting behavior of the voltage regulator when operated in accordance with the every serial command frame.
    Type: Application
    Filed: June 6, 2018
    Publication date: December 13, 2018
    Inventors: Wangmiao Hu, Lijie Jiang, Qian Ouyang, Qingqing Zheng, Binci Xu, Jinghai Zhou, Eric Yang
  • Publication number: 20180337585
    Abstract: A method for controlling a voltage regulator is receiving a voltage identification code which has a pulse width modulation signal, providing a duty signal via measuring a duty cycle of the pulse width modulation signal, calculating a target voltage based on the duty signal, providing a reference signal via filtering the duty signal by a first filter if the voltage identification code varies, and providing the reference signal via filtering the duty signal by a second filter if the reference signal is in a range determined by the target voltage.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 22, 2018
    Inventors: Binci Xu, Lijie Jiang, Chao Liu, Tao Zhao
  • Publication number: 20180337589
    Abstract: A method for controlling a voltage regulator is receiving a voltage identification code which has a pulse width modulation signal, providing a duty signal via measuring a duty cycle of the pulse width modulation signal, calculating a target voltage based on the duty signal, providing a reference signal based on the duty signal and the target voltage. If it is judged that the duty cycle of the pulse width modulation signal increases, the reference signal is restricted increasing or keeping its value without decreasing, and if it is judged that the duty cycle of the pulse width modulation signal decreases, the reference signal is restricted decreasing or keeping its value without increasing.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 22, 2018
    Inventors: Binci Xu, Lijie Jiang, Chao Liu, Tao Zhao