Invention Grant
- Patent Title: Power converter
- Patent Title (中): 电源转换器
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Application No.: US13885934Application Date: 2010-12-07
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Publication No.: US08976551B2Publication Date: 2015-03-10
- Inventor: Hiroaki Igarashi , Satoru Shigeta , Takashi Ogura
- Applicant: Hiroaki Igarashi , Satoru Shigeta , Takashi Ogura
- Applicant Address: JP Hitachinaka-shi
- Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee Address: JP Hitachinaka-shi
- Agency: Crowell & Moring LLP
- International Application: PCT/JP2010/071926 WO 20101207
- International Announcement: WO2012/077187 WO 20120614
- Main IPC: H02M1/32
- IPC: H02M1/32 ; H02H7/122 ; B60L3/00 ; H02P27/08 ; B60L11/18 ; B60L15/00 ; H02M7/53846

Abstract:
A power converter includes an inverter unit that includes a plurality of semiconductor switching elements constituting upper and lower arms and converts DC power into AC power; a gate driving unit that outputs, to the inverter unit, a gate signal used to drive gates of the plurality of semiconductor switching elements; a driving control unit that supplies the gate driving unit with a switching control signal used for the gate driving unit to output the gate signal; a first abnormality detection unit that performs over voltage detection of the DC power and over current detection of the AC power and temperature detection of the upper and lower arms; and a second abnormality detection unit that detects abnormality of the plurality of semiconductor switching elements of the upper arm and lower arms, wherein the driving control unit includes a first protection circuit and a second protection circuit.
Public/Granted literature
- US20140092655A1 Power Converter Public/Granted day:2014-04-03
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