发明授权
- 专利标题： Drive system for a motor
- 专利标题（中）： 电机驱动系统
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申请号： US149535申请日： 1980-05-13
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公开(公告)号： US4307326A公开(公告)日： 1981-12-22
- 发明人: Isao Fukushima , Yoshinori Okada , Hideo Nishijima
- 申请人： Isao Fukushima , Yoshinori Okada , Hideo Nishijima
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX54-58146 19790514
- 主分类号： H02P29/00
- IPC分类号： H02P29/00 ; H02P7/285 ; H02P7/288 ; H02P7/28
摘要：
Disclosed is a drive system for a motor, wherein a current proportional to a change of a load of a motor is sensed by a sensing resistor. A voltage produced across the sensing resistor controls an electronic switch in a manner that the output DC voltage of a DC - DC converter is used for a motor drive power source at a normal load and yet a DC power source with a higher voltage than the output DC voltage of the DC - DC converter is used therefor at an increased load.
公开/授权文献
- US4888214A Aparatus and method for coating fasteners 公开/授权日：1989-12-19
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