发明授权
- 专利标题: Device for driving switching elements
- 专利标题(中): 用于驱动开关元件的装置
-
申请号: US11577201申请日: 2005-09-20
-
公开(公告)号: US07764089B2公开(公告)日: 2010-07-27
- 发明人: Akio Iwabuchi , Ryuichi Furukoshi , Yoichi Kyono
- 申请人: Akio Iwabuchi , Ryuichi Furukoshi , Yoichi Kyono
- 申请人地址: JP Saitama
- 专利权人: Sanken Electric Co., Ltd.
- 当前专利权人: Sanken Electric Co., Ltd.
- 当前专利权人地址: JP Saitama
- 代理机构: Bachman & LaPointe, P.C.
- 优先权: JP2004-307987 20041022
- 国际申请: PCT/JP2005/017309 WO 20050920
- 国际公布: WO2006/043391 WO 20060427
- 主分类号: H03K3/00
- IPC分类号: H03K3/00
摘要:
A device for driving switching elements is provided with a potential detector 29 which provides drive circuit 30 with signals in response to differences among potentials at junctions 17 to 20 of first and third resistors 13, 15, third resistor 15 and first control MOS-FET 8, second and fourth resistors 14, 16 and fourth resistor 16 and second control MOS-FET 9 so that drive circuit 30 supplies drive signals to a gate terminal of a first MOS-FET 1 based on potentials in first and second series circuits 11 and 12. When appropriate resistance values are selected for first to fourth resistors 13 to 16, potential detector 29 precisely detects the potential at each junction 17 to 20 to produce detection signals and prevent malfunction of drive circuit 30 even upon occurrence of abnormal signals or noises resulted from abrupt potential rise.
公开/授权文献
- US20090045851A1 DEVICE FOR DRIVING SWITCHING ELEMENTS 公开/授权日:2009-02-19
信息查询