| 摘要 |
The present invention discloses a charge-pump circuit capable of regulating voltage without any external voltage regulator, wherein an input-modifying circuit is installed between the voltage-input end and the charge-pump circuit and used to detect the variation of the output voltage of the charge-pump circuit and modify the voltage input to the charge-pump circuit via a negative feedback mechanism, and the output voltage is thus regulated and stabilized. Therefore, in the present invention, the input voltage does not change with the variation of loads, and the output voltage is not determined by the input voltage but by the input-modifying circuit.
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