发明名称 |
Sleep control signal sequence circuit |
摘要 |
A sequence circuit includes a switch circuit (30) and a control circuit (50). The switch circuit has an input terminal connected with a node (11) and an output terminal connected to a super I/O chip (10). The control circuit includes a first transistor (Q4) and a second transistor (Q5), the first transistor has a gate connected to the node and a drain connected to a sleep control signal terminal (S3′), the second transistor has a base connected to the drain of the first transistor and a collector connected to the super I/O chip. When the computer is off or in one of the sleep states, the node is at low level and the output terminal of the switch circuit outputs a low level signal; when the computer is on, the node is at high level and the output terminal outputs a high level signal.
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申请公布号 |
US7757106(B2) |
申请公布日期 |
2010.07.13 |
申请号 |
US20070757405 |
申请日期 |
2007.06.04 |
申请人 |
HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD.;HON HAI PRECISION INDUSTRY CO., LTD. |
发明人 |
LIU BAI-HONG |
分类号 |
G06F1/00;G05F1/00;G06F13/14;H03K17/00;H03L7/00 |
主分类号 |
G06F1/00 |
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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