发明授权
US5870295A Simple charge-pump circuit with variable conduction path for changing
boosting ratio and step-up circuit using the same
失效
具有可变传导路径的简单的电荷泵电路，用于改变升压比和使用其的升压电路
- 专利标题： Simple charge-pump circuit with variable conduction path for changing boosting ratio and step-up circuit using the same
- 专利标题（中）： 具有可变传导路径的简单的电荷泵电路，用于改变升压比和使用其的升压电路
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申请号： US861610申请日： 1997-05-22
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公开(公告)号： US5870295A公开(公告)日： 1999-02-09
- 发明人: Toshio Watanabe
- 申请人： Toshio Watanabe
- 申请人地址： JPX Tokyo
- 专利权人： NEC Corporation
- 当前专利权人： NEC Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX8-126940 19960522
- 主分类号： G11C5/14
- IPC分类号： G11C5/14 ; H02M3/07 ; H03K3/78 ; H02M3/18
摘要：
A pattern generator is responsive to a control signal so as to change a pulse signal pattern selectively supplied through a level-shift circuit to switching elements of a charge-pump circuit, and the switching elements cause boosting capacitors to be differently charged depending upon the pulse signal pattern so that all the boosting capacitors participate in the boosting operation regardless of the target ratio between the input potential and the output potential.
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