发明名称 |
Charge pump generator and relative control method |
摘要 |
The electric charge transferred in a charge transfer phase from the pump capacitor to the tank capacitor is diminished by reducing the amplitude of the voltage swing on the transfer capacitor proportionally to the current to be supplied. This is done by limiting the maximum voltage on the pump capacitor to a certain value. This maximum value is calculated to make the voltage on the transfer capacitor reach a certain minimum voltage at the end of the charge transfer phase. A charge pump generator includes a driving circuit that isolates the pump capacitor when the voltage on it reaches the maximum value.
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申请公布号 |
US7288984(B2) |
申请公布日期 |
2007.10.30 |
申请号 |
US20050180481 |
申请日期 |
2005.07.13 |
申请人 |
STMICROELECTRONICS S.R.L. |
发明人 |
ARMAROLI DIEGO;BETTA DAVIDE;FERRARI MARCO |
分类号 |
G05F1/575;H02M3/18 |
主分类号 |
G05F1/575 |
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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