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

Power control device and method using integral circuit

A technology of power control device and integral circuit, which is applied in the direction of lamp circuit layout, electric light source, lighting device, etc., can solve unrealistic problems, achieve the effect of improving power supply performance and life, and improving control signal accuracy

Inactive Publication Date: 2011-05-11
NORTH CHINA UNIVERSITY OF TECHNOLOGY
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to make the average current output by the system equal to its designed current value, theoretically the inductance must be infinite, which is obviously unrealistic

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 device and method using integral circuit
  • Power control device and method using integral circuit
  • Power control device and method using integral circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.

[0021] The preferred embodiment of the power control device using an integrating circuit of the present invention is to include a drive circuit, the drive circuit includes an error amplifier and a PWM comparator, the output terminal of the PWM comparator is connected to the RS flip-flop, The input end of the error amplifier is connected to the detection voltage and the reference voltage, and the output end of the error amplifier is connected to the ...

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 power control device and method using an integral circuit. The power control device comprises a driving circuit which comprises an error amplifier and a PWM (pulse-width modulation) comparator; the output end of the PWM comparator is connected with an RS (reset-set) trigger; the input end of the error amplifier is connected with a detecting voltage and a reference voltage; the output end of the error amplifier is connected with the input end of the PWM comparator via the integral circuit. The method comprises the following steps: comparing an average value of a signal after comparing the detecting voltage and the reference voltage with a ramp signal; and controlling a switch tube by driving so as to control a power circuit. According to the invention, the precision of the control signal can be improved, and the performance and service life of the integral power supply can be improved.

Description

technical field [0001] The invention relates to a power control circuit, in particular to a power control device and method using an integrating circuit. Background technique [0002] With the attention of new energy and energy saving and emission reduction, higher and higher requirements are put forward for the efficiency and precision of power supply. For example, for cold light sources, compared with traditional fluorescent lamps, high-power HBLED lamps have become the focus of attention due to their energy saving, environmental protection, and high efficiency. As people pay more and more attention to HB LEDs, the performance of LED drive circuits The requirements are getting higher and higher, because the deviation of the output current will affect the life of the LED lamp, so the accuracy of the output current is also more important. [0003] Most of the mature driver chip circuits in the prior art adopt the peak current control mode. [0004] Such as figure 1 Shown ...

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
IPC IPC(8): H02M3/10H05B37/02
Inventor 姜岩峰
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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