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Circuit of voltage adjuster

A voltage regulator and circuit technology, applied in the electronic field, can solve problems such as increasing load energy loss and affecting load response speed

Active Publication Date: 2014-10-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the application process, it is inevitable that the output voltage of the voltage regulator may generate noise due to temperature changes, voltage drift, or increased integration of process nodes, such as spike pulses, etc., which directly burden the load, such as affecting the load. The response speed and the energy loss of increasing the load, etc.

Method used

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] The circuit of the voltage regulator in the embodiment of the present invention can be applied to electronic devices such as smart phones, personal computers, tablet computers, digital music players, and e-readers, and can realize "DC (Direct Current, direct current)-DC" voltage regulation effect.

[0032] figure 1 It is a schematic structural diagram of a circuit of a voltage regulator provided by an embodiment of the present invention. As shown in the fi...

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Abstract

The embodiment of the invention discloses a circuit of a voltage adjuster. The circuit comprises a voltage input end, a voltage transformation unit, a feedback control unit, a voltage relief unit and a voltage output end, wherein the feedback control unit is used for correspondingly reducing or increasing the voltage drop of the voltage transformation unit when the output voltage of a positive electrode of the voltage output end is larger than or smaller than the preset threshold value, the voltage relief unit comprises a switching tube, the feedback control unit is further used for switching on the switching tube when the output voltage of the positive electrode of the voltage output end jumps, and the switching tube is used for discharging clutter of the positive electrode of the voltage output end when switched on. By the adoption of the circuit of the voltage adjuster, noise of the output voltage of the voltage adjuster can be reduced, and the stability of the voltage adjuster is improved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a circuit of a voltage regulator. Background technique [0002] A voltage regulator is a linear voltage regulator that adjusts the output voltage through transistors or MOSFETs operating in the linear operating area to maintain the difference between the input voltage and the output voltage within the rated value. The voltage regulator has the characteristics of low loss, small quiescent current and simple structure, so it is widely used in various electronic equipment. [0003] In the application process, it is inevitable that the output voltage of the voltage regulator may generate noise due to temperature changes, voltage drift, or increased integration of process nodes, such as spike pulses, etc., which directly burden the load, such as affecting the load. The response speed and the energy loss of increasing the load, etc. Contents of the invention [0004] The embodi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02M1/14H02M1/32
CPCH02M3/335
Inventor 唐样洋张臣雄王新入
Owner HUAWEI TECH CO LTD
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