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

Power control circuit and current protection circuit

A technology of a power supply control circuit and a voltage comparison circuit, applied in the field of circuits, can solve problems such as poor control effect and damage to power equipment, and achieve the effect of improving the control effect

Active Publication Date: 2019-01-29
SENGLED CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a power control circuit and a current protection circuit to overcome the problem that the existing power control circuit has poor control effect and may cause damage to electric equipment

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
  • Power control circuit and current protection circuit
  • Power control circuit and current protection circuit
  • Power control circuit and current protection circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] figure 2 A schematic structural diagram of Embodiment 1 of the power supply control circuit provided by the present invention, as shown in figure 2 As shown, the power control circuit includes: a switching power supply integrated circuit 10, a first resistor 11, a second resistor 12, a third resistor 13, a fourth resistor 14, a fift...

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 provides a power control circuit and a current protection circuit. The power control circuit comprises a switching power integrated circuit, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor, a second capacitor, a first enhancement type field-effect transistor, a depletion type field-effect transistor and a voltage comparison circuit. The power control circuit has advantages that by addition of simple devices, an automatic charge-discharge circuit is constructed, and instantaneous increase of current flowing through a transformer is limited, so that the transformer is protected, and control effectiveness of the power control circuit is improved.

Description

technical field [0001] The embodiments of the present invention relate to circuit technology, and in particular to a power control circuit and a current protection circuit. Background technique [0002] The power control circuit is common in various control circuits, and is mainly used to control the voltage applied to the power equipment to gradually increase, so as to avoid overvoltage or overcurrent in the power equipment, thereby damaging the power equipment. For example, the input terminal of the transformer is usually connected with a power control circuit. If the power control circuit does not limit the current, it will work with the maximum current when it is powered on. It is easy to cause the saturation of the transformer core, and in severe cases, the entire circuit will fail. [0003] figure 1 It is a schematic structural diagram of an existing power supply control circuit. Such as figure 1 As shown, the power supply control circuit includes: switching power ...

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 Patents(China)
IPC IPC(8): H02M1/34
CPCH02M1/34
Inventor 田智斌楼俊山沈锦祥
Owner SENGLED 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