Invention Grant
- Patent Title: Gate driving circuit and method for driving semiconductor device
- Patent Title (中): 栅极驱动电路及其驱动方法
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Application No.: US12189319Application Date: 2008-08-11
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Publication No.: US09543928B2Publication Date: 2017-01-10
- Inventor: Keisuke Yamashiro , Hiromu Takubo
- Applicant: Keisuke Yamashiro , Hiromu Takubo
- Applicant Address: JP Kawasaki-Shi
- Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee: FUJI ELECTRIC CO., LTD.
- Current Assignee Address: JP Kawasaki-Shi
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2007-219244 20070827
- Main IPC: H03K3/012
- IPC: H03K3/012 ; H03K17/16

Abstract:
A gate driving circuit and method can improve the tradeoff relation between the noise and the loss caused in the turn-OFF switching of semiconductor device. The gate driving circuit includes first and second series circuits. The first series circuit includes first and second MOSFETs connected in series. The gate terminal of the semiconductor device is connected to a negative potential side of the first MOSFET and a positive potential side of the second MOSFET. The emitter of the semiconductor device is connected to the negative potential side of the second MOSFET or a DC power source. The second series circuit includes a capacitor and a third MOSFET connected in series. The second series circuit is connected in parallel with the second MOSFET. The semiconductor device is turned OFF by turning ON the second and third MOSFETs and turning OFF the first MOSFET.
Public/Granted literature
- US20090058499A1 GATE DRIVING CIRCUIT AND METHOD FOR DRIVING SEMICONDUCTOR DEVICE Public/Granted day:2009-03-05
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