发明名称 |
Photosemiconductor relay, photosemiconductor relay device, controller using photosemiconductor relay, power supply apparatus using photosemiconductor relay and terminal switching apparatus using photosemiconductor relay |
摘要 |
A photosemiconductor relay of the present invention comprises a light-emitting unit for emitting light therefrom, a light-receiving control circuit for providing a predetermined potential difference or more between a first connecting terminal and a second connecting terminal during a light-receiving period and electrically connecting the first and second connecting terminals to each other in response to the non-reception of the light, and a switching circuit for electrically connecting a first output terminal and a second output terminal to each other in response to the reception of the predetermined potential difference or more and restricting a load current flowing between the first and second output terminals to a predetermined value or less. Thus, since a current of a predetermined value or more does not flow into a load circuit connected between the output terminals, the load circuit is prevented from malfunctioning and the switching circuit is promptly turned off.
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申请公布号 |
US5757020(A) |
申请公布日期 |
1998.05.26 |
申请号 |
US19970845207 |
申请日期 |
1997.04.21 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
TORAZAWA, HIROYASU;OGAWA, HIROAKI |
分类号 |
H01L31/12;H01L31/167;H03K17/0814;H03K17/78;H03K17/785;(IPC1-7):H03K3/42;G02B27/00 |
主分类号 |
H01L31/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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