Title:
誘導性負荷駆動回路
Document Type and Number:
Japanese Patent JP4128700
Kind Code:
B2
Abstract:
An inductive load driving circuit includes a switching transistor and a guardring. The switching transistor is connected between an output terminal and a power supply potential point. The guardring is an N-type semiconductor region provided for the switching transistor and connected to the power supply potential point.
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Inventors:
Seiichi Yamamoto
Application Number:
JP25376099A
Publication Date:
July 30, 2008
Filing Date:
September 08, 1999
Export Citation:
Assignee:
ROHM Co., Ltd.
International Classes:
H03K17/64; H01L27/06; H01L29/73; H03K17/16; H03K17/687; H03K17/695
Domestic Patent References:
| JP63304715A | ||||
| JP49120589A | ||||
| JP11163155A |
Attorney, Agent or Firm:
Makoto Monda
Terumi Hemi
Terumi Hemi