Patents by Inventor Manjing Xie

Manjing Xie 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).

  • POWER-FACTOR-CORRECTION (PFC) APPARATUS AND METHOD
    Publication number: 20150145485
    Abstract: The various embodiments may include a power supply having a first loop in communication with a power stage of the power supply. A second loop in communication with the first loop may generate a negative reactance value that increases a power factor for the power supply to approximately one. A power supply may also include a rectifier coupleable to an input supply. A power factor compensation circuit coupled to the rectifier may generate a negative reactance. The negative reactance may reduce a phase angle between a current and a voltage provided to the input supply. A method may include sensing an output of a power supply, and adjusting the sensed value. The adjusted value may be compared to a reference value to generate an error value. The error value and a negative reactance value may be combined and the result may be provided to the power supply.
    Type: Application
    Filed: February 4, 2015
    Publication date: May 28, 2015
    Inventors: Manjing XIE, Zhixiang LIANG
  • POWER FACTOR CORRECTION APPARATUS AND METHOD
    Publication number: 20130057229
    Abstract: The various embodiments may include a power supply having a first loop in communication with a power stage of the power supply. A second loop in communication with the first loop may generate a negative reactance value that increases a power factor for the power supply to approximately one. A power supply may also include a rectifier coupleable to an input supply. A power factor compensation circuit coupled to the rectifier may generate a negative reactance. The negative reactance may reduce a phase angle between a current and a voltage provided to the input supply. A method may include sensing an output of a power supply, and adjusting the sensed value. The adjusted value may be compared to a reference value to generate an error value. The error value and a negative reactance value may be combined and the result may be provided to the power supply.
    Type: Application
    Filed: December 9, 2011
    Publication date: March 7, 2013
    Applicant: INTERSIL AMERICAS INC.
    Inventors: Manjing XIE, Zhixiang LIANG
  • Advanced slope injection for input current limiting of switch-mode DC/DC converter
    Patent number: 8294447
    Abstract: A DC/DC converter comprising voltage conversion circuitry for generating a regulated output voltage responsive to an input current and at least one switching control signal. A current control loop generates the at least one switching control signal to limit an input current responsive to the input current, a reference voltage and a slope signal injected with the reference voltage.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: October 23, 2012
    Assignee: Intersil Americas Inc.
    Inventor: Manjing Xie
  • ADVANCED SLOPE INJECTION FOR INPUT CURRENT LIMITING OF SWITCH-MODE DC/DC CONVERTER
    Publication number: 20100085029
    Abstract: A DC/DC converter comprising voltage conversion circuitry for generating a regulated output voltage responsive to an input current and at least one switching control signal. A current control loop generates the at least one switching control signal to limit an input current responsive to the input current, a reference voltage and a slope signal injected with the reference voltage.
    Type: Application
    Filed: April 23, 2009
    Publication date: April 8, 2010
    Applicant: INTERSIL AMERICAS INC.
    Inventor: Manjing Xie
  • Current source with indirect load current signal extraction
    Patent number: 7642762
    Abstract: A switching circuit for supplying current to a load has a switching element, an inductive element coupled to the switching element, and a load current extraction circuit responsive to current in the inductive element for producing a load current signal as a simulated current approximating current in the load.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: January 5, 2010
    Assignee: Linear Technology Corporation
    Inventors: Manjing Xie, Jindong Zhang
  • Current source with indirect load current signal extraction
    Publication number: 20080180075
    Abstract: A switching circuit for supplying current to a load has a switching element, an inductive element coupled to the switching element, and a load current extraction circuit responsive to current in the inductive element for producing a load current signal as a simulated current approximating current in the load.
    Type: Application
    Filed: January 29, 2007
    Publication date: July 31, 2008
    Inventors: Manjing Xie, Jindong Zhang