| 摘要 |
A charge pump circuit utilizes active feedback control circuits to control the currents produced by sinking and sourcing current sources. The feedback control circuits may regulate the drain voltages of sinking and sourcing current source transistors to make them approximately equal to respective reference voltages received by the feedback control circuits. The charge pump circuit may utilize multiple supply voltages, with a higher supply voltage such as a 3.3 V supply voltage being used to drive current source transistors, and a lower supply voltage such as a 1.8 V supply voltage being used to drive switches in a switching section.
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