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A Transient Response Circuit of Switching Regulator

A switching regulator and transient response technology, which is applied in the direction of electrical components, output power conversion devices, etc., can solve problems such as poor transient response capability, low reliability, and large impact, and achieve the ability of transient response Strong, high reliability, fast response effect

Active Publication Date: 2020-10-09
AMOLOGIC (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, traditional switching regulators controlled by PWM technology are greatly affected by the load, have poor transient response capability, and cannot provide a sufficiently stable power supply for the load, resulting in a high probability of power problems and low reliability.

Method used

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  • A Transient Response Circuit of Switching Regulator
  • A Transient Response Circuit of Switching Regulator
  • A Transient Response Circuit of Switching Regulator

Examples

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Embodiment Construction

[0035] 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.

[0036] Such as figure 1 As shown, in a preferred embodiment, a transient response circuit of a switching regulator is proposed, which may include:

[0037] Step-down module 10, comprising:

[0038] A signal input terminal INT for receiving input signals and a signal output terminal OUT for outputting output signals;

[0039] The main circuit 11 is connected in series between the signal input terminal INT and the signal output terminal OUT;

[0040] A first MOS t...

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PUM

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Abstract

The present invention relates to the technical field of power electronics, in particular to a transient response circuit of a switching voltage regulator, comprising: a step-down module; a first acquisition module; a second acquisition module; a third acquisition module; a comparison module; The superposition signal of the signal and the feedback signal is compared with the acquisition signal, and a comparison signal is output through the comparison output terminal; a pulse width modulation module; wherein, when the operating current of the collected main circuit of the third acquisition module is greater than a preset value , the ratio of the output feedback signal to the working current on the main circuit is equal to 1; when the working current on the main circuit collected by the third acquisition module is less than the preset value, the ratio of the output feedback signal to the working current on the main circuit Less than 1; it has strong transient response capability, fast response speed and high reliability.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a transient response circuit of a switching regulator. Background technique [0002] With the rapid development of microelectronics technology, switching regulators are widely used in various occasions due to their advantages such as simple circuit structure, convenient adjustment, and high reliability. Switching regulators often use PWM (Pulse Width Modulation) control mode, which has Good noise reduction advantage. [0003] However, traditional switching regulators controlled by PWM technology are greatly affected by the load, have poor transient response capability, and cannot provide a sufficiently stable power supply for the load, resulting in a high probability of power problems and low reliability. . Contents of the invention [0004] In view of the above problems, the present invention proposes a transient response circuit of a switching voltage regulator, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/00
CPCH02M1/00H02M1/0003H02M1/0009
Inventor 樊茂
Owner AMOLOGIC (SHANGHAI) CO LTD