Switch capacitor converter

A capacitor and converter technology, applied in the field of switched capacitor converters, can solve the problem of increasing the number of switches and/or capacitors, and achieve the effect of high-efficiency size

Pending Publication Date: 2021-03-30
矽致微有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some circuits are known to be able to adjust the voltage conversion ratio by using a greater number of switches and / or capacitors, there are size and efficiency disadvantages due to the increased number of switches and / or capacitors

Method used

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  • Switch capacitor converter
  • Switch capacitor converter
  • Switch capacitor converter

Examples

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Embodiment Construction

[0059] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In each drawing, when adding reference numerals to elements, the same elements will be denoted by the same reference numerals if possible even though they are shown in different drawings. Also, in the following description of the present disclosure, when it is determined that the description may make the subject matter of the present disclosure rather unclear, a detailed description of known functions and configurations incorporated herein will be omitted.

[0060] Terms such as first, second, A, B, (A) or (B) may be used herein to describe elements of the present disclosure. Each term is not used to define the nature, order, sequence or number of elements, but is only used to distinguish the corresponding element from another element. When it is mentioned that one element is "connected" or "coupled" to another element, it shall be construed that ...

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Abstract

The present disclosure relates to a switch capacitor converter with high efficiency and a small size. The converter according to one aspect of the present disclosure is provided for receiving an inputvoltage through an input terminal and supplying an output voltage through an output terminal, the converter comprising: a first capacitor; a second capacitor; a third capacitor; and a switch networkfor changing a connection relationship between the input terminal, the output terminal, the first capacitor, the second capacitor, and the third capacitor. A ratio of the input voltage to the output voltage implemented in the converter is selectable from 4:1, 3:1, or 2:1 depending on an operation of the switch network.

Description

technical field [0001] The present disclosure relates to switched capacitor converters, and more particularly, to switched capacitor power converters with predetermined voltage conversion ratios. Background technique [0002] In recent years, as the power consumption of mobile systems (e.g., smartphones, tablets, etc.) has been increasing, and the operating voltage of components that consume power in mobile systems (e.g., chips, related circuits, etc.) tends to decrease , there is an increasing need for converters with a voltage conversion ratio (ie, the ratio of input voltage to output voltage) exceeding 2:1. [0003] A switched capacitor converter is commonly used as a converter with a voltage conversion ratio of 2:1 in mobile systems. A switched capacitor converter is a circuit in which generally at least one capacitor and at least one semiconductor switching element (hereinafter, referred to as a "switch" for convenience of description) are combined without using an ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/07
CPCH02M3/07H02M3/077H02M3/158H02M3/072H02M1/0043
Inventor K·K·刘
Owner 矽致微有限公司
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