Invention Grant
US09225236B2 Method for controlling an H-bridge inverter 有权
控制H桥逆变器的方法

  • Patent Title: Method for controlling an H-bridge inverter
  • Patent Title (中): 控制H桥逆变器的方法
  • Application No.: US14381220
    Application Date: 2013-03-07
  • Publication No.: US09225236B2
    Publication Date: 2015-12-29
  • Inventor: Arkadiusz Kulka
  • Applicant: Eltek AS
  • Applicant Address: NO Drammen
  • Assignee: Eltek AS
  • Current Assignee: Eltek AS
  • Current Assignee Address: NO Drammen
  • Agent Christian D. Abel
  • Priority: GB1204318.8 20120312
  • International Application: PCT/EP2013/054603 WO 20130307
  • International Announcement: WO2013/135554 WO 20130919
  • Main IPC: H02M7/5387
  • IPC: H02M7/5387 H02M1/42 H02M7/5395
Method for controlling an H-bridge inverter
Abstract:
The invention relates to a H-bridge inverter and a method for controlling a H-bridge converter. The H-bridge inverter (1) comprises first and second DC terminals (Tdc1, Tdc2), first and second AC terminals (Tac1, Tac2), a first switch (S1), a second switch (S2), a third switch (S3) and a fourth switch (S4). The inverter further comprises a control circuit for controlling the switching of the first, second, third and fourth switches (S11, S2, S3, S4). The control circuit is configured to control the switches (S1, S2, S3, S4) in continuous mode between the following states: a first state where the first switch (S1) is turned off, the second switch (S2) is performing PWM switching, the third switch (S3) is turned off and the fourth switch (S4) is turned on; a second state where the first switch (S1) is turned off, the second switch (S2) is performing PWM switching, the third switch (S3) is turned on and the fourth switch (S4) is turned off; a third state where the first switch (S1) is turned off, the second switch (S2) is turned on, the third switch (S3) is turned off and the fourth switch (54) is performing PWM switching; and a fourth state where the first switch (S1) is turned on, the second switch (S2) is turned off, the third switch (S3) is turned off and the fourth switch (S4) is performing PWM switching.
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