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Voltage converter

A technology of voltage converter and input voltage, which is applied in the direction of output power conversion devices, electrical components, and conversion equipment without intermediate conversion to AC, which can solve the problems of large number of devices and PIN pins, high cost, etc. The effect of less number, cost and volume reduction

Pending Publication Date: 2021-06-11
SILERGY SEMICON TECH (HANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a voltage converter with fewer devices and PIN pins to solve the technical problem of high cost due to the large number of devices and PIN pins in the prior art

Method used

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Embodiment Construction

[0044] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0045] Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0046] Meanwhile, it should be understood that in the following description, "circuit" refers to a conductive loop formed by at least one element or sub-circuit through electrical connection or electromagnetic connection. When an element or circuit is said to be "connected to" another eleme...

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Abstract

A voltage converter is disclosed in accordance with an embodiment of the present invention, and comprises: an input configured to receive an input voltage; an output configured to generate an output voltage; N switched capacitor circuits sequentially connected between the input end and the output end in series, wherein each switched capacitor circuit comprises a switching circuit and a flying capacitor, the flying capacitor of at least the ith switched capacitor circuit is shared as the output capacitor of the (i-1) th switched capacitor circuit, N is greater than or equal to 2, and i is greater than or equal to 2 and less than or equal to N; and a first energy storage element coupled to the output end. The number of devices and PINs in the voltage converter is small, so the cost and the size of a circuit are reduced.

Description

technical field [0001] The present invention relates to the field of power electronics, and more specifically, relates to a voltage converter. Background technique [0002] With the development of society, energy shortage has become the primary problem faced by human beings. Power electronics technology has developed by leaps and bounds in recent years, and high-efficiency voltage converters are an indispensable part of energy utilization. High-efficiency voltage converters in the prior art generally adopt the form of a charge pump, such as figure 1 As shown, the voltage converter includes power switches Q1-Q8 and energy storage capacitors C1-C4, and the power switches Q1-Q4 are sequentially connected in series between the input high potential terminal and the ground potential of the voltage converter, so as to Receiving the input voltage Vin, the energy storage capacitor C1 is coupled between the common terminals of the power switches Q1 and Q2 and the common terminals of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/07
CPCH02M3/07H02M7/4837H02M1/007H02M3/158
Inventor 陈惠强王建新
Owner SILERGY SEMICON TECH (HANGZHOU) CO LTD