Unlock instant, AI-driven research and patent intelligence for your innovation.

Soft start circuit, method and electric equipment

A soft-start circuit and soft-start technology, applied in the field of soft-start, can solve the problems of abnormal sound of power module, feedback loop ripple interference, etc., and achieve the effect of improving quality

Active Publication Date: 2019-12-13
GUANGZHOU SHIYUAN ELECTRONICS CO LTD +1
View PDF11 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a soft start circuit, method and electrical equipment to at least solve the problem that the feedback signal of the soft start circuit is always connected to the feedback loop in the related art, causing the feedback loop to introduce ripple interference and the power module to produce abnormal sound question

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Soft start circuit, method and electric equipment
  • Soft start circuit, method and electric equipment
  • Soft start circuit, method and electric equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Before describing further details of each embodiment of the present application, reference will be made to figure 1 To describe an optional soft-start circuit that can be used to implement the principles of this application. In its most basic configuration, figure 1 It is a schematic structural diagram of a soft start circuit according to an embodiment of the present invention. For the purpose of description, the drawn architecture is only an example of a suitable environment, and does not put any limitation on the scope or function of the application. Nor should the circuit be interpreted as figure 1 Any one or combination of components shown has any dependencies or requirements.

[0031] Such as figure 1 As shown, the soft start circuit provided by this application includes:

[0032] The power module, the load, and the soft start module coupled between the power module and the load.

[0033] In an alternative solution, the above-mentioned power supply module can be a switc...

Embodiment 2

[0061] Under the soft-start circuit provided in embodiment 1, this embodiment provides a soft-start method from the perspective of the control module. It should be noted that the steps shown in the flowchart in the figure can be implemented in a group of computers such as Executable instructions are executed in a computer system, and, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than here.

[0062] Figure 4 Is an optional soft start method according to an embodiment of the present invention, such as Figure 4 As shown, the method is applied to a soft-start circuit. The soft-start circuit includes a power module, a soft-start module, a load, and a control module that are connected in sequence. The soft-start circuit is also connected to the control module. The soft-start method includes the following steps:

[0063] Step S402: Obtain the first feedback signal from the soft-start module and t...

Embodiment 3

[0077] According to an embodiment of the present invention, there is provided an electrical device including the soft start circuit of the above-mentioned embodiment 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a soft start circuit, a soft start method and electric equipment. The soft start circuit comprises a power source module, a load, a soft start module coupled between the powersource module and the load, and a control module; the input end of the control module is connected with the soft start module and the load; the output end of the control module is connected with the power source module; and the control module is used for outputting control signals according to first feedback signals from the soft start module, second feedback signals from the load and a referencevoltage and adjusting current flowing through the load based on the control signals; and the soft start module comprises a buffer circuit used for attenuating the first feedback signals after a soft start process is finished and before the first feedback signals enter the control module. According to a soft start circuit in the prior art, the first feedback signals of the soft start circuit alwaysenter a feedback loop, and as a result, ripple interference is introduced into the feedback loop and abnormal noises appear in a power source module due, however, with the soft start circuit of the invention adopted, technical problems in the prior art can be solved.

Description

Technical field [0001] The present invention relates to the field of soft start, and in particular to a soft start circuit, method and electrical equipment. Background technique [0002] In the process of starting electrical equipment, there is often an overvoltage or overcurrent phenomenon, which damages the service life of the components, and the electrical equipment can be burned in severe cases. In the prior art, a soft start method is usually used to overcome this problem. [0003] The so-called soft start refers to the gradual increase of the voltage from zero to the rated voltage, so that there is no surge voltage or surge current in the whole process of starting the components (including electrical equipment), but the operation starts smoothly to reduce the surge voltage or current The impact on the components, to achieve the purpose of protecting the circuit. At present, the working principle of the soft start circuit is generally to introduce part of the start voltage i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/36H02M3/335
CPCH02M1/36H02M3/335
Inventor 邓国健
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com