Invention Grant
- Patent Title: Converter and semiconductor device
- Patent Title (中): 转换器和半导体器件
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Application No.: US14051241Application Date: 2013-10-10
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Publication No.: US09246402B2Publication Date: 2016-01-26
- Inventor: Tatsuya Sakurai , Takashi Saji , Tetsuyuki Fukushima
- Applicant: PANASONIC CORPORATION
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2011-090360 20110414
- Main IPC: H02M7/06
- IPC: H02M7/06 ; H02M7/217 ; H02M1/32

Abstract:
A converter includes: a bridge diode; an X capacitor provided upstream of the bridge diode; a smoothing capacitor provided downstream of the bridge diode; an AC shutoff detection circuit which outputs an AC shutoff detection signal when input AC voltage is shut off; and a discharging circuit which is connected to a connection point at which the cathode of the bridge diode and the smoothing capacitor are connected, and allows residual charges in the smoothing capacitor and the X capacitor to be discharged when the AC shutoff detection signal is output, and the discharging circuit includes a JFET which has a drain terminal connected to the above connection point and lowers discharge voltage; and a first discharging switch element connected to the source terminal of the JFET.
Public/Granted literature
- US20140036561A1 CONVERTER AND SEMICONDUCTOR DEVICE Public/Granted day:2014-02-06
Information query
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