Invention Grant
- Patent Title: Switching element drive circuit, power module, and automobile
- Patent Title (中): 开关元件驱动电路，电源模块和汽车
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Application No.: US14651627Application Date: 2012-12-21
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Publication No.: US09461640B2Publication Date: 2016-10-04
- Inventor: Kazuaki Hiyama
- Applicant: Kazuaki Hiyama
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Studebaker & Brackett PC
- International Application: PCT/JP2012/083321 WO 20121221
- International Announcement: WO2014/097486 WO 20140626
- Main IPC: H02P6/14
- IPC: H02P6/14 ; H03K17/687 ; H03K17/04 ; H03K17/16 ; H02M1/08 ; H02M1/32 ; H02M7/00 ; H02M7/5387 ; H02M1/00
Abstract:
A switching element drive circuit of the present invention outputs a voltage to the switching element by use of a voltage output unit configured as an amplifier circuit having a voltage amplification factor of 1 to drive the switching element. When the switching element is turned on, a turn-on voltage having a value higher than a threshold voltage of the switching element and lower than a value of a voltage of a power supply of the switching element drive circuit is provided to the voltage output unit. After elapse of a turn-on voltage maintenance period, a voltage provided to the voltage output unit is switched by a voltage switching unit to the voltage of the power supply of the switching element drive circuit.
Public/Granted literature
- US20150318850A1 SWITCHING ELEMENT DRIVE CIRCUIT, POWER MODULE, AND AUTOMOBILE Public/Granted day:2015-11-05
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