A buck-boost charge pump

Abstract

The application provides a buck-boost charge pump, including: multiple charge pump units, input voltage feed-in units and output voltage feedback units; multiple charge pump units connected in series and parallel; input voltage feed-in units and multiple The input terminal of the charge pump unit is connected; the output terminal voltage feedback unit is connected to the output terminal of the first charge pump unit; the input terminals of the multiple charge pump units, the input terminal voltage feed-in unit and the output terminal voltage feedback unit are used for input The first clock signal; the output terminals of the plurality of charge pump units, the input terminal voltage feeding unit and the output terminal voltage feedback unit are all used to input the second clock signal. The buck-boost charge pump provided by the present application can adapt to a wide range of input voltages with more voltage conversion rates, keep the output voltage relatively constant, and improve conversion resolution and conversion efficiency.

Description

technical field [0001] The present application belongs to the technical field of integrated circuits and semiconductors, and in particular relates to a buck-boost charge pump. Background technique [0002] A charge pump is also called a switched capacitor DC-DC converter (Switched-Capacitor DC-DC Converter), and is collectively referred to as a charge pump below. [0003] Over the past decade, technological advances in the semiconductor industry have driven research and technological development across many disciplines and engineering fields. However, in modern integrated circuits, high power consumption also leads to significant heat generation due to increased power consumption, increasing the risk of transistor breakdown. In order to overcome the above problems, advanced energy harvesting and power management technologies are urgently needed. At present, many emerging electronic devices, such as earth satellites, wireless communication base stations, and unmanned base e...

AI Technical Summary

Problems solved by technology

Existing Dickson charge pumps are based on the implementation structure of the voltage conversion rate, which can only be applied to the boost charge pump with a specific conversion rate. It cannot be reconfigured, and the voltage conversion rate is not high, resulting in a low energy conversion rate.

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