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A capacitor series-parallel switching circuit and electronic system

An electronic system and switching circuit technology, applied in the field of electronic science, can solve the problems of large board area, unfavorable electronic equipment volume, large occupation area, etc., and achieve the requirements of reducing board area, reducing capacitance capacity and/or withstand voltage , the effect of small volume

Active Publication Date: 2022-02-15
HUAWEI DIGITAL POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since each capacitor needs to have a high capacitance withstand voltage, each capacitor has a larger occupied area
As a result, the total board area occupied by multiple capacitors in the filter circuit is large, which is not conducive to reducing the volume of electronic equipment using the filter circuit

Method used

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  • A capacitor series-parallel switching circuit and electronic system
  • A capacitor series-parallel switching circuit and electronic system
  • A capacitor series-parallel switching circuit and electronic system

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Embodiment Construction

[0038] Capacitors are common electrical components that are used in functional circuits such as filter circuits and energy storage circuits. Generally speaking, since the capacitance and withstand voltage of a single capacitor are limited, multiple capacitors are often arranged in a functional circuit so that the overall capacitance and withstand voltage of the functional circuit can meet application requirements. Wherein, the overall capacitance capacity of the functional circuit can also be understood as the equivalent capacity of multiple capacitors in the functional circuit, and the overall capacitance withstand voltage of the functional circuit can also be understood as the equivalent withstand voltage of multiple capacitors in the functional circuit.

[0039] Taking the filter circuit as an example, figure 1 A rectification and filtering circuit 100 is exemplarily shown, and the rectification and filtering circuit 100 can be applied to electronic equipment, such as a cha...

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Abstract

The present application provides a capacitance series-parallel switching circuit and an electronic system. The capacitance series-parallel switching circuit mainly includes a first series structure, a second series structure and a third switch. In the first series structure, the first end of the first switch is connected in series with one end of the first capacitor through the first node; in the second series structure, the first end of the second switch is connected in series with one end of the second capacitor through the second node , the other end of the second capacitor is connected to the second end of the first switch, and the second end of the second switch is connected to the other end of the first capacitor; the third switch is connected in series between the first node and the second node; the first The switch and the second switch can be turned on when the input voltage is less than the threshold voltage, and can be turned off when the input voltage is not less than the threshold voltage; the third switch can be turned on when the input voltage is not less than the threshold voltage, and can be turned on when the input voltage is less than the threshold voltage disconnected. The present application is beneficial to reduce the board area occupied by the capacitor as a whole.

Description

technical field [0001] The present application relates to the field of electronic science and technology, in particular to a capacitance series-parallel switching circuit and an electronic system. Background technique [0002] In the field of integrated circuits, capacitors are a common electrical component and are often used in functional circuits such as filter circuits and energy storage circuits. Taking the filter circuit as an example, the capacitor in the filter circuit can filter the electrical signal transmitted by the filter circuit, thereby improving the output quality of the filter circuit. [0003] Generally speaking, the capacitance in the filter circuit needs to be configured according to the input voltage of the filter circuit. In a scenario where the input voltage is low, the capacitor needs to have a larger capacitance. In a scenario where the input voltage is high, the capacitor needs to have a larger capacitance withstand voltage. When the operating vol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/15
CPCH02M1/15
Inventor 刘承勇孙程豪张学
Owner HUAWEI DIGITAL POWER TECH CO LTD
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