Patent ID: 7042742
Filing Date: 2006-05-09
Classification: H02M

Abstract:
1. A charge-pump circuitry, receiving an external voltage source to generate a target voltage, comprising: a voltage multiplier module, comprising an input terminal and an output terminal, wherein the output terminal comprises a first terminal and a second terminal, the input terminal receives the external voltage source, the voltage multiplier module generates a multiplied-voltage on the first terminal and the second terminal according to the external voltage source, and the multiplied-voltage is a predetermined times of a voltage potential of the external voltage source; a voltage difference generating circuitry for generating a correcting voltage, wherein an output terminal of the voltage difference generating circuitry electrically couples to the second terminal in the output terminal of the voltage multiplier module, and a voltage potential of the correcting voltage is a potential difference between the target voltage and the multiplied-voltage; and a first capacitor, wherein one terminal of the first capacitor electrically couples to the first terminal in the output terminal of the voltage multiplier module, and the other terminal is grounded.