Patents by Inventor CHUN-JUAN ZHAN

CHUN-JUAN ZHAN 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).

  • Short circuit detection in a capacitor of a DC-bridge and DC-bridge protection
    Patent number: 9515576
    Abstract: A bridge circuit and a short-circuit protection method thereof. The bridge circuit includes an input power unit, a converter unit, a first capacitor, a second capacitor, a detection unit and a bridge inverter unit. The input power unit includes a first electrode and a second electrode. The converter unit is coupled to the input power unit. The first capacitor includes a first terminal and a second terminal. The second capacitor includes a first terminal and a second terminal. The bridge inverter unit includes a plurality of switches and is coupled to the converter unit, the first capacitor, the second capacitor, the detection unit and the second electrode. The detection unit issues a short-circuit signal to a control unit when the detection unit detects a current variation on the second capacitor.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 6, 2016
    Assignee: VOLTRONIC POWER TECHNOLOGY CORP.
    Inventors: Yi-Sheng Yuan, Chun-Juan Zhan, Juor-Ming Hsieh
  • BRIDGE CIRCUIT AND SHORT-CIRCUIT PROTECTION METHOD THEREOF
    Publication number: 20150256106
    Abstract: A bridge circuit and a short-circuit protection method thereof. The bridge circuit includes an input power unit, a converter unit, a first capacitor, a second capacitor, a detection unit and a bridge inverter unit. The input power unit includes a first electrode and a second electrode. The converter unit is coupled to the input power unit. The first capacitor includes a first terminal and a second terminal. The second capacitor includes a first terminal and a second terminal. The bridge inverter unit includes a plurality of switches and is coupled to the converter unit, the first capacitor, the second capacitor, the detection unit and the second electrode. The detection unit issues a short-circuit signal to a control unit when the detection unit detects a current variation on the second capacitor.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 10, 2015
    Inventors: YI-SHENG YUAN, CHUN-JUAN ZHAN, JUOR-MING HSIEH