Patents by Inventor Meng-Chi YANG

Meng-Chi YANG 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 supply apparatus with auxiliary boost circuit
    Patent number: 9397556
    Abstract: A power supply apparatus includes a rectification circuit, a power factor correction circuit, an auxiliary boost circuit and a direct current to direct current conversion circuit. The auxiliary boost circuit includes an input contact, an output contact, a voltage detection unit, a control unit, a boost unit and a boost bypass unit. When a voltage value of a power factor correction power is not greater than a predetermined voltage value, the control unit is configured to turn off the boost bypass unit and turn on the boost unit, so that the boost unit boosts the power factor correction power and then the power factor correction power is sent to the direct current to direct current conversion circuit through the boost unit and the output contact.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: July 19, 2016
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventors: Tzu-Hung Wang, Che-Hao Chang, Zhi-Hong Lu, Chiuan-Shing Wu, Meng-Chi Yang
  • POWER SUPPLY APPARATUS WITH AUXILIARY BOOST CIRCUIT
    Publication number: 20160079880
    Abstract: A power supply apparatus includes a rectification circuit, a power factor correction circuit, an auxiliary boost circuit and a direct current to direct current conversion circuit. The auxiliary boost circuit includes an input contact, an output contact, a voltage detection unit, a control unit, a boost unit and a boost bypass unit. When a voltage value of a power factor correction power is not greater than a predetermined voltage value, the control unit is configured to turn off the boost bypass unit and turn on the boost unit, so that the boost unit boosts the power factor correction power and then the power factor correction power is sent to the direct current to direct current conversion circuit through the boost unit and the output contact.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 17, 2016
    Inventors: Tzu-Hung WANG, Che-Hao CHANG, Zhi-Hong LU, Chiuan-Shing WU, Meng-Chi YANG