发明申请
US20150098258A1 CONVERTER CIRCUIT 有权
转换电路

  • 专利标题: CONVERTER CIRCUIT
  • 专利标题(中): 转换电路
  • 申请号: US14508467
    申请日: 2014-10-07
  • 公开(公告)号: US20150098258A1
    公开(公告)日: 2015-04-09
  • 发明人: Ki-Bum PARKSami PETTERSSONFrancisco CANALES
  • 申请人: ABB Oy
  • 申请人地址: FI Helsinki
  • 专利权人: ABB OY
  • 当前专利权人: ABB OY
  • 当前专利权人地址: FI Helsinki
  • 优先权: EP13187505.6 20131007
  • 主分类号: H02M1/32
  • IPC分类号: H02M1/32 H02M5/42
CONVERTER CIRCUIT
摘要:
A converter circuit with short-circuit protection can include a plurality of phase legs having a series connection of normally-on switches, between voltage rails of a DC voltage link, a DC link capacitor, and AC voltage connection points between the normally-on switches. A phase-to-phase short-circuit protection circuit includes a parallel connection of a resistive component and a controllable switch. The phase-to-phase short-circuit protection circuit including a first terminal connected to an AC voltage connection point and a second terminal forms an input or an output of the converter circuit; and a controllable switch is connected in series with the DC link capacitor. Upon lack of control of the normally-on switches the controllable switch of the at least one phase-to-phase short-circuit protection circuit and the controllable switch of the phase leg short-circuit protection circuit are adapted to be controlled to a non-conductive state.
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