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Boost circuit and control method thereof

A booster circuit and control signal technology, applied in electrical components, high-efficiency power electronic conversion, conversion equipment without intermediate conversion to AC, etc., can solve the problems of slow transient response and low system bandwidth, and achieve high system bandwidth, The effect of high circuit efficiency and simple circuit structure

Active Publication Date: 2016-01-06
CHENGDU MONOLITHIC POWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the boost circuit controlled by peak current, in order to ensure the stability of the circuit system, the system bandwidth is low, that is, the transient response is slow

Method used

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  • Boost circuit and control method thereof

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Embodiment Construction

[0015] Specific embodiments of the present invention will be described in detail below, and it should be noted that the embodiments described here are only for illustration, not for limiting the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that these specific details need not be employed to practice the present invention. In other instances, well-known circuits, materials or methods have not been described in detail in order to avoid obscuring the present invention.

[0016] Throughout this specification, reference to "one embodiment," "an embodiment," "an example," or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present invention. In at least one embodiment. Thus, appearances of the phrases "in on...

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Abstract

The invention provides a boost circuit. The boost circuit employs a fixed duration switch-on circuit to control the on-off of the boost circuit. The boost circuit comprises an input port, an output port, an inductor, a pull-up switch, a pull-down switch, and a control circuit. In each on-off period, the control circuit controls the pull-down switch to be switched on for fixed duration. According to the boost circuit, the structure is simple, the system bandwidth is high, the transient characteristic is good, and the circuit efficiency is high in the condition of light load.

Description

technical field [0001] The present invention relates to an electronic circuit, and more specifically, the present invention relates to a switch circuit and a control method thereof. Background technique [0002] The traditional boost circuit (BOOST) usually adopts the peak current control mode. In the boost circuit controlled by peak current, in order to ensure the stability of the circuit system, the system bandwidth is low, that is, the transient response is slow. [0003] Therefore, there is a need to propose a boost circuit with simple circuit structure, high system bandwidth and high circuit efficiency. Contents of the invention [0004] In consideration of one or more technical problems in the prior art, a boost circuit and a control method thereof are proposed. [0005] According to an embodiment of the present technology, a boost circuit is proposed, including: an input port receiving an input voltage; an output port providing an output voltage; an inductor havin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/10
CPCH02M3/1588Y02B70/10H02M1/0009H02M1/08H02M3/158
Inventor 李伊珂
Owner CHENGDU MONOLITHIC POWER SYST