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Output voltage regulation device and method

一种输出电压、调节装置的技术，应用在输出功率的转换装置、调节电变量、控制/调节系统等方向，能够解决过冲或过跌等问题

Active Publication Date: 2019-06-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides an output voltage regulation device and method, which are used to realize rapid voltage regulation and solve the problem of overshoot or overdrop in the process of output voltage regulation

Method used

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  • Output voltage regulation device and method
  • Output voltage regulation device and method

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Embodiment Construction

[0023] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0024] The basic idea of ​​the voltage regulation scheme in the embodiment of the present application is to add a voltage regulation circuit to the output voltage regulation device, and to fix the reference voltage V in the control circuit REF On the basis of constant, change the feedback voltage V in the control circuit through the voltage regulation circuit FB node current to achieve fast regulation of the output voltage V O , In this way, not only can the rapid adjustment of the output voltage be realized, but also the phenomenon of overshoot, over-drop or glitch in the process of output voltage adjustment can be suppressed, and the time from adjustment to stable voltage can be effectively shortened.

[0025] The embodiment of the present application can be applied to fast voltage regulation equipment related to DC to DC Converter (DC to DC Conve...

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Abstract

The invention relates to the field of power supply management, and discloses an output voltage regulation device and an output voltage regulation method, which are used for realizing rapid voltage regulation and suppressing the phenomena of overshooting or over-dropping during output voltage regulation. The output voltage regulation device comprises a voltage regulation circuit, a control circuit,a power-level circuit, a filtering network and a feedback network, wherein the feedback network is used for acquiring a regulated output voltage obtained by the filtering network, and outputting a feedback voltage to a feedback voltage node of the control circuit; an output end of the voltage regulation circuit is connected between an output end of the feedback network and the feedback voltage node of the control circuit, and the voltage regulation circuit is used for regulating the feedback voltage; an output end of the control circuit is connected with an input end of the power-level circuit, and is used for receiving the feedback voltage and controlling the on and off of a power tube in the power-level circuit; and the filtering network is used for filtering the output voltage of the power-level circuit to obtain the regulated output voltage.

Description

technical field [0001] The embodiments of the present application relate to the field of power management, and in particular to an output voltage regulating device and method. Background technique [0002] In recent years, consumer electronic products such as smartphones and tablet computers have shown a trend of rapid development. Power Management IC (PMIC) is a power device used to manage the host system of consumer electronic products. PMIC has a high degree of integration , high conversion efficiency, low cost and other advantages. The integrated voltage modulator (Intergraded voltage regulator, IVR) is an important part of the PMIC. With the rapid upgrading of consumer electronic products, the requirements for IVR performance are getting higher and higher. In order to save system power consumption, it is necessary to adjust the output voltage of the IVR in real time, dynamically and quickly according to the load of the subsequent stage. [0003] In the prior art, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/158H02M1/32
CPCG05F1/561H02M3/157H02M1/0025G05F1/575
Inventor 汪家轲陈亮邹鹏
Owner HUAWEI TECH CO LTD
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