发明授权
- 专利标题： Switched current mirror
- 专利标题（中）： 开关电流镜
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申请号： US538946申请日： 1983-10-04
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公开(公告)号： US4544878A公开(公告)日： 1985-10-01
- 发明人: Richard G. Beale , Apparajan Ganesan
- 申请人： Richard G. Beale , Apparajan Ganesan
- 申请人地址： NJ Murray Hill
- 专利权人： AT&T Bell Laboratories
- 当前专利权人： AT&T Bell Laboratories
- 当前专利权人地址： NJ Murray Hill
- 主分类号： G05F3/24
- IPC分类号： G05F3/24 ; G05F3/26 ; H03K17/687 ; G05F3/20
摘要：
The input (16) and output (20) MOS transistors of a current mirror (10) have their sources connected to a supply voltage node (12). The gate of the input transistor (16) is connected to its drain and is also connected to the gate of the output transistor (20) through an isolation switch (24). The gate of the output transistor (20) is connected to the supply voltage node (12) through a disable switch (26). Closing of the disable switch (26) and opening of the isolation switch (24) turns off current in the output transistor (20). Opening the disable switch (26) and closing the isolation switch (24) turns the output current on again.Also disclosed is a mirror (28) having switches (30), (32) configured for various logic functions. A voltage-controlled oscillator (34) and a phase detector circuit 72 having a switched current input provided by switched current mirrors (40, 42, 80, 82) is described.
公开/授权文献
- USD323829S Shoulder rest for telephone handset 公开/授权日：1992-02-11
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