Patents by Inventor Yi-Qing Ye

Yi-Qing Ye 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: 10411608
    Abstract: A converter circuit includes an inverter and a controller. The inverter is configured to receive an input voltage and to convert the input voltage into a primary-side alternating-current (AC) voltage in a first inversion mode or a second inversion mode. Each of a first switch unit and a second switch unit in the inverter includes switches. When the converter circuit works in the first inversion mode, the controller controls switches of the first switch unit and the second switch unit to cooperatively switch on and switch off periodically according to an output voltage corresponding to the primary-side AC voltage. When the converter circuit works in the second inversion mode, the controller controls the first switch unit to operate independently, in which the switches of the first switch unit switch on and switch off periodically.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: September 10, 2019
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Yi-Qing Ye, Chao Yan, Li-Ping Sun
  • Publication number: 20180054135
    Abstract: A converter circuit includes an inverter and a controller. The inverter is configured to receive an input voltage and to convert the input voltage into a primary-side alternating-current (AC) voltage in a first inversion mode or a second inversion mode. Each of a first switch unit and a second switch unit in the inverter includes switches. When the converter circuit works in the first inversion mode, the controller controls switches of the first switch unit and the second switch unit to cooperatively switch on and switch off periodically according to an output voltage corresponding to the primary-side AC voltage. When the converter circuit works in the second inversion mode, the controller controls the first switch unit to operate independently, in which the switches of the first switch unit switch on and switch off periodically.
    Type: Application
    Filed: November 1, 2017
    Publication date: February 22, 2018
    Inventors: Yi-Qing YE, Chao YAN, Li-Ping SUN
  • Patent number: 9899870
    Abstract: The present disclosure provides a power supply system and a method for supplying power. The power supply system includes an isolating circuit and a first converting circuit. The isolating circuit includes an input terminal and an output terminal. The input terminal of the isolating circuit is configured to connect with a second input source and receive the alternating current or direct current outputted from the second input source. The first converting circuit includes an input terminal and an output terminal. The input terminal of the first converting circuit is configured to connect with a first input source and the output terminal of the isolating circuit. The first converting circuit is configured to convert electricity to output the direct current.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: February 20, 2018
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Yi-Qing Ye, Wen-Xin Zhang, Chao Yan
  • Patent number: 9837918
    Abstract: A converter circuit includes an inverter and a controller. The inverter is configured to receive an input voltage and to convert the input voltage into a primary-side alternating-current (AC) voltage in a first inversion mode or a second inversion mode. Each of a first switch unit and a second switch unit in the inverter includes switches. When the converter circuit works in the first inversion mode, the controller controls switches of the first switch unit and the second switch unit to cooperatively switch on and switch off periodically according to an output voltage corresponding to the primary-side AC voltage. When the converter circuit works in the second inversion mode, the controller controls the first switch unit to operate independently, in which the switches of the first switch unit switch on and switch off periodically.
    Type: Grant
    Filed: August 31, 2014
    Date of Patent: December 5, 2017
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Yi-Qing Ye, Chao Yan, Li-Ping Sun
  • Patent number: 9692305
    Abstract: A method for controlling a resonant DC/DC power converting circuit is provided. The resonant DC/DC power converting circuit having a converter output and a converter input comprises at least two converters having similar structures and outputs connected in parallel as said converter output, and a controller. Each converter comprises a full-bridge inverter unit and a resonant unit. The full-bridge inverter unit is configured with at least four switches. The resonant unit is coupled with said full-bridge inverter unit. The controller outputs two groups of driving control signals to drive four switches in said two converters respectively. The method comprises: making said two converters operate at the same frequency and interleave with preset phase shift; and making two of driving control signals in one group interleave with preset angle to reduce output current of said converter corresponding controlled thereby, when output currents of said two converters are not approximately equal.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 27, 2017
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chao Yan, Yi-Qing Ye, Zhi-Zhen Lian
  • Publication number: 20160190940
    Abstract: A method for controlling a resonant DC/DC power converting circuit is provided. The resonant DC/DC power converting circuit having a converter output and a converter input comprises at least two converters having similar structures and outputs connected in parallel as said converter output, and a controller. Each converter comprises a full-bridge inverter unit and a resonant unit. The full-bridge inverter unit is configured with at least four switches. The resonant unit is coupled with said full-bridge inverter unit. The controller outputs two groups of driving control signals to drive four switches in said two converters respectively. The method comprises: making said two converters operate at the same frequency and interleave with preset phase shift; and making two of driving control signals in one group interleave with preset angle to reduce output current of said converter corresponding controlled thereby, when output currents of said two converters are not approximately equal.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 30, 2016
    Inventors: Chao YAN, Yi-Qing YE, Zhi-Zhen LIAN
  • Patent number: 9252653
    Abstract: A power factor correction converter and a control method are disclosed. A power factor correction converter includes a power conversion module, a capacitor, a third switch unit, and a fourth switch capacitor. The power conversion module includes a first switch, a second switch, a first switch unit, a second switch unit, and an inductor. The first switch is coupled to a first input terminal. The second switch is coupled to a second input terminal. The first switch is coupled between an output terminal and the first switch. The second switch is coupled between the output terminal and the second switch. The inductor is coupled between the first and the second switch unit. The capacitor is coupled to the output terminal. The third switch unit is coupled between the second input terminal and the capacitor. The fourth switch unit is coupled between the first input terminal and the capacitor.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: February 2, 2016
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Yi-Qing Ye, Chao Yan
  • Publication number: 20150214781
    Abstract: The present disclosure provides a power supply system and a method for supplying power. The power supply system includes an isolating circuit and a first converting circuit. The isolating circuit includes an input terminal and an output terminal. The input terminal of the isolating circuit is configured to connect with a second input source and receive the alternating current or direct current outputted from the second input source. The first converting circuit includes an input terminal and an output terminal. The input terminal of the first converting circuit is configured to connect with a first input source and the output terminal of the isolating circuit. The first converting circuit is configured to convert electricity to output the direct current.
    Type: Application
    Filed: January 26, 2015
    Publication date: July 30, 2015
    Inventors: Yi-Qing YE, Wen-Xin ZHANG, Chao YAN
  • Publication number: 20150062971
    Abstract: A converter circuit includes an inverter and a controller. The inverter is configured to receive an input voltage and to convert the input voltage into a primary-side alternating-current (AC) voltage in a first inversion mode or a second inversion mode. Each of a first switch unit and a second switch unit in the inverter includes switches. When the converter circuit works in the first inversion mode, the controller controls switches of the first switch unit and the second switch unit to cooperatively switch on and switch off periodically according to an output voltage corresponding to the primary-side AC voltage. When the converter circuit works in the second inversion mode, the controller controls the first switch unit to operate independently, in which the switches of the first switch unit switch on and switch off periodically.
    Type: Application
    Filed: August 31, 2014
    Publication date: March 5, 2015
    Inventors: Yi-Qing YE, Chao YAN, Li-Ping SUN
  • Publication number: 20150022164
    Abstract: A power factor correction converter and a control method are disclosed. A power factor correction converter includes a power conversion module, a capacitor, a third switch unit, and a fourth switch capacitor. The power conversion module includes a first switch, a second switch, a first switch unit, a second switch unit, and an inductor. The first switch is coupled to a first input terminal. The second switch is coupled to a second input terminal. The first switch is coupled between an output terminal and the first switch. The second switch is coupled between the output terminal and the second switch. The inductor is coupled between the first and the second switch unit. The capacitor is coupled to the output terminal. The third switch unit is coupled between the second input terminal and the capacitor. The fourth switch unit is coupled between the first input terminal and the capacitor.
    Type: Application
    Filed: April 7, 2014
    Publication date: January 22, 2015
    Applicant: Delta Electronics (Shanghai) Co., Ltd.
    Inventors: Yi-Qing YE, Chao YAN
  • Publication number: 20140056045
    Abstract: The disclosure provides a control circuit for a power converter, a conversion system and a controlling method thereof. The conversion system includes an AC power supply, a power converter and a control circuit. The power converter includes a first and second bridge arms connected in parallel. The first bridge arm includes a first and second switches connected in series. A second end of the first switch is connected with a first end of the second switch and coupled to a first end of the AC power supply by an inductance component. The first and second switches work at a first switching frequency. The control circuit is used for controlling the first and second switches, so that the current flowing through the inductance component is decreased to zero before the at least one first switching cycle is over.
    Type: Application
    Filed: December 27, 2012
    Publication date: February 27, 2014
    Inventors: Chao Yan, Xiao-Yuan Wang, Yi-Qing Ye
  • Publication number: 20120294053
    Abstract: A method for protecting a converter device comprises the steps of: detecting an alternating current signal; when the alternating current signal is abnormal, generating an activating signal according to the abnormal alternating current signal; generating a control signal according to the activating signal; and controlling at least one synchronous rectifying power switch of the converter device according to the control signal. Furthermore, a converter device which implements the method is provided.
    Type: Application
    Filed: September 23, 2011
    Publication date: November 22, 2012
    Applicant: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Chao Yan, Yi-Qing YE, Chong-Feng ZHENG, Jian-Ping YING
  • Patent number: 7692937
    Abstract: A resonant converter and voltage stabilizing method thereof are provided. The resonant converter includes a converting stage circuit, a diode-rectifying stage circuit, a filter and load stage circuit, a logic circuit, a driving circuit, and an energy-recycling circuit. The method includes steps of recycling an energy from the filter and load stage circuit to the converting stage circuit when the resonant converter is light- or zero-loaded.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: April 6, 2010
    Assignee: Delta Electronics, Inc.
    Inventors: Jian-Hong Zeng, Yi-Qing Ye, Chao Yan, Jian-Ping Ying, Guo-Dong Yin
  • Publication number: 20070285952
    Abstract: A resonant converter and voltage stabilizing method thereof are provided. The resonant converter includes a converting stage circuit, a diode-rectifying stage circuit, a filter and load stage circuit, a logic circuit, a driving circuit, and an energy-recycling circuit. The method includes steps of recycling an energy from the filter and load stage circuit to the converting stage circuit when the resonant converter is light- or zero-loaded.
    Type: Application
    Filed: May 14, 2007
    Publication date: December 13, 2007
    Inventors: Jian-Hong Zeng, Yi-Qing Ye, Chao Yan, Jian-Ping Ying, Guo-Dong Yin