Patents Assigned to SHANGHAI RUKING ELECTRONICS CO., LTD.
  • Bootstrap driving circuit without extra power supply
    Patent number: 9479041
    Abstract: The present invention provides a bootstrap driving circuit without extra power supply, which circuit includes a power unit, a switching unit, a bootstrap unit, a drive unit; the power unit is used to output a direct voltage; the switching unit is connected with the power unit, to control the turn-on or turn-off with the power unit; the bootstrap unit is connected with the switching unit, to supply drive electric energy and output drive power; the bootstrap unit includes an energy storage capacitor; the drive unit is connected with the bootstrap unit, to output control signal under the drive of the drive power. The bootstrap driving process is completed via the charging-discharging of the energy storage capacitor in the bootstrap unit of the invention and without an extra power supply, which forms the bootstrap driving circuit without extra power supply, further overcomes the requirement of an extra power supply for a common driving circuit, reduces the power consumption and meets the demand of the circuit.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: October 25, 2016
    Assignee: SHANGHAI RUKING ELECTRONICS CO., LTD
    Inventors: Huaigang Lei, Xijun Yang, Yuanqing Zhu, Zhiling Liu, Jun Zhu
  • BOOTSTRAP DRIVING CIRCUIT WITHOUT EXTRA POWER SUPPLY
    Publication number: 20140361759
    Abstract: The present invention provides a bootstrap driving circuit without extra power supply, which circuit includes a power unit, a switching unit, a bootstrap unit, a drive unit; the power unit is used to output a direct voltage; the switching unit is connected with the power unit, to control the turn-on or turn-off with the power unit; the bootstrap unit is connected with the switching unit, to supply drive electric energy and output drive power; the bootstrap unit includes an energy storage capacitor; the drive unit is connected with the bootstrap unit, to output control signal under the drive of the drive power. The bootstrap driving process is completed via the charging-discharging of the energy storage capacitor in the bootstrap unit of the invention and without an extra power supply, which forms the bootstrap driving circuit without extra power supply, further overcomes the requirement of an extra power supply for a common driving circuit, reduces the power consumption and meets the demand of the circuit.
    Type: Application
    Filed: December 5, 2012
    Publication date: December 11, 2014
    Applicant: SHANGHAI RUKING ELECTRONICS CO., LTD.
    Inventors: Huaigang Lei, Xijun Yang, Yuanqinz Zhu, Zhiling Liu, Jun Zhu