Patents by Inventor Yiqiang Jake Zhang

Yiqiang Jake Zhang 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: 9966873
    Abstract: An active switching rectifier circuit uses a MOSFET and applies a current based control to turn the MOSFET on and off. The MOSFET has its source and drain connected between an AC phase line and the DC output. A current detection and control circuit has an input current conductor coupled in series with the source-drain current of the MOSFET; it outputs a switching control signal based on the current in its input conductor and applies the signal to the gate of the MOSFET for on/off control. A Hall-effect switch may be used in the current detection and control circuit. The rectifier may also include a voltage supply circuit coupled to the AC source for supplying a floating DC voltage to the current detection and control circuit. The rectifier circuit can be adapted for various configurations including single-phase half-wave, center-tap dual-phase full-wave, single-phase full-wave, and three-phase full-wave.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: May 8, 2018
    Inventor: Yiqiang Jake Zhang
  • Patent number: 9762139
    Abstract: An active switching rectifier circuit uses a MOSFET and applies a current based control to turn the MOSFET on and off. The MOSFET has its source and drain connected between an AC phase or neutral line and the DC output. A current detection and control circuit has an input current conductor coupled in series with the source-drain current of the MOSFET; it outputs a switching control signal based on the current in its input conductor and applies the signal to the gate of the MOSFET for on/off control. A Hall-effect switch may be used in the current detection and control circuit. The rectifier may also include a voltage supply circuit for supplying a DC voltage to the current detection and control circuit. The rectifier circuit can be adapted for various configurations including single-phase half-wave, center-tap dual-phase full-wave, single-phase full-wave, and three-phase full-wave.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: September 12, 2017
    Inventor: Yiqiang Jake Zhang
  • Publication number: 20160049856
    Abstract: An active switching rectifier circuit uses a MOSFET and applies a current based control to turn the MOSFET on and off. The MOSFET has its source and drain connected between an AC phase line and the DC output. A current detection and control circuit has an input current conductor coupled in series with the source-drain current of the MOSFET; it outputs a switching control signal based on the current in its input conductor and applies the signal to the gate of the MOSFET for on/off control. A Hall-effect switch may be used in the current detection and control circuit. The rectifier may also include a voltage supply circuit coupled to the AC source for supplying a floating DC voltage to the current detection and control circuit. The rectifier circuit can be adapted for various configurations including single-phase half-wave, center-tap dual-phase full-wave, single-phase full-wave, and three-phase full-wave.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 18, 2016
    Inventor: Yiqiang Jake Zhang
  • Publication number: 20160049857
    Abstract: An active switching rectifier circuit uses a MOSFET and applies a current based control to turn the MOSFET on and off. The MOSFET has its source and drain connected between an AC phase or neutral line and the DC output. A current detection and control circuit has an input current conductor coupled in series with the source-drain current of the MOSFET; it outputs a switching control signal based on the current in its input conductor and applies the signal to the gate of the MOSFET for on/off control. A Hall-effect switch may be used in the current detection and control circuit. The rectifier may also include a voltage supply circuit for supplying a DC voltage to the current detection and control circuit. The rectifier circuit can be adapted for various configurations including single-phase half-wave, center-tap dual-phase full-wave, single-phase full-wave, and three-phase full-wave.
    Type: Application
    Filed: November 18, 2014
    Publication date: February 18, 2016
    Inventor: Yiqiang Jake Zhang