发明名称 |
Constant current circuit for supplying a constant current to operating circuits |
摘要 |
In order to prevent interference of signals in a plurality of outputs from a current mirror circuit, the current mirror circuit comprises a current mirror input transistor Q1 through which a constant current flows and a plurality of current mirror output transistors Q7 and Q8 which have control ends commonly connected to a control end of the current mirror input transistor Q1. The constant current is supplied from the plurality of current mirror output transistors Q7 and Q8 to a plurality of operating circuits. Further, at least one of the plurality of current mirror output transistors Q7 and Q8 is equipped with a low pass filter for removing a high-frequency component contained in a current output from the at least one of the plurality of current mirror output transistors Q7 and Q8.
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申请公布号 |
US7902808(B2) |
申请公布日期 |
2011.03.08 |
申请号 |
US20070963412 |
申请日期 |
2007.12.21 |
申请人 |
SANYO ELECTRIC CO., LTD.;SANYO SEMICONDUCTOR CO., LTD. |
发明人 |
HASHIMOTO FUMINORI |
分类号 |
G05F3/16;G05F3/20 |
主分类号 |
G05F3/16 |
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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