发明授权
- 专利标题： Current compensating charge pump circuit
- 专利标题（中）： 电流补偿电荷泵电路
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申请号： US898998申请日： 1992-06-15
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公开(公告)号： US5184028A公开(公告)日： 1993-02-02
- 发明人: Don W. Zobel
- 申请人： Don W. Zobel
- 申请人地址： IL Schaumburg
- 专利权人： Motorola, Inc.
- 当前专利权人： Motorola, Inc.
- 当前专利权人地址： IL Schaumburg
- 主分类号： H03K3/0231
- IPC分类号： H03K3/0231 ; H03K17/14 ; H03K17/60 ; H03K17/66 ; H03L7/089
摘要：
A charge pump circuit (10) has been provided for maintaining the currents sunk by each of the bottom current sources (12, 14) substantially equal to the current sourced from a first upper current source (16). The present invention maintains the voltage across a second upper current source (64) that determines the current for the lower current sources to be modified with respect to corresponding changes in the first upper current source wherein these changes in the first upper current source are due to a varying voltage occurring at the output (18) of the charge pump circuit.
公开/授权文献
- US4780903A X-ray source 公开/授权日：1988-10-25
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