发明授权
- 专利标题： Power switching circuit
- 专利标题（中）： 电源开关电路
-
申请号： US920170申请日： 1992-07-27
-
公开(公告)号： US5293077A公开(公告)日： 1994-03-08
- 发明人: Kunio Seki , Yasuhiro Nunogawa , Hirotaka Mochizuki , Makoto Kobayashi , Makoto Goto
- 申请人： Kunio Seki , Yasuhiro Nunogawa , Hirotaka Mochizuki , Makoto Kobayashi , Makoto Goto
- 申请人地址： JPX Tokyo JPX Kodaira
- 专利权人： Hitachi, Ltd.,Hitachi Microcomputer Engineering, Ltd.
- 当前专利权人： Hitachi, Ltd.,Hitachi Microcomputer Engineering, Ltd.
- 当前专利权人地址： JPX Tokyo JPX Kodaira
- 优先权： JPX63-47193 19880229; JPX63-83699 19880405
- 主分类号： H02H9/00
- IPC分类号： H02H9/00 ; H02M3/156 ; H03K17/082 ; H05B39/02 ; B60L1/14 ; G05F1/00 ; G05F1/44 ; H05B37/02
摘要：
When a current that flows into a power output element is greater than a predetermined value, pulse width-modulated signals are formed which vary in inverse proportion to the current value in order to drive the power output element. When an excess current flows into the power output element, therefore, the power output element is allowed to intermittently operate for only short periods of time, and the current can be decreased during the current-limiting operation.
公开/授权文献
- US4190976A Fishing light 公开/授权日：1980-03-04
信息查询
