Voltage conversion circuit, voltage conversion method and device and electronic equipment

Abstract

The invention provides a voltage conversion circuit, a voltage conversion method, a voltage conversion device and electronic equipment, and relates to the technical field of circuits, the conversion circuit is used for converting an input voltage into an output voltage, and the input voltage and the output voltage have a preset multiple or a preset proportion; the conversion circuit comprises an output capacitor, a first branch, a second branch and an auxiliary branch. The first branch comprises a first switch assembly and a first capacitor assembly, and the first switch assembly is used for controlling the on-off of the first branch; the second branch comprises a second switch assembly and a second capacitor assembly, and the second switch assembly is used for controlling the on-off of the second branch; the working states of the first switch assembly and the second switch assembly at the same moment are different; the auxiliary branch comprises an auxiliary switch assembly and an auxiliary capacitor assembly. The number of switching elements can be reduced, the boost or buck function is realized, the complexity of the voltage conversion circuit is reduced, and the voltage conversion efficiency is improved.

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