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

Control method and control circuit of booster circuit

A boost circuit and control circuit technology, applied in control/regulation systems, high-efficiency power electronic conversion, electrical components, etc., can solve problems such as power factor compensation and harmonic suppression effects are not ideal, and achieve good power factor compensation and harmony The effect of the wave suppression effect

Active Publication Date: 2022-04-15
JOULWATT TECH INC LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-efficiency boost circuit control method and control circuit, which are used to solve the problems of unsatisfactory power factor compensation and harmonic suppression in the prior art

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
  • Control method and control circuit of booster circuit
  • Control method and control circuit of booster circuit
  • Control method and control circuit of booster circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made within the spirit and scope of the present invention.

[0029] In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0030] In the following paragraphs the invention is described more specifically by way of example with reference to the accompanying drawings. It should be noted that all the drawings are in a relatively simplified form and use inaccurate scales to facilitate and clearly assist the purpose of illustrating the embodiments of the prese...

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 present invention proposes a control method and a control circuit of a boost circuit, which amplifies the error of the voltage sampling signal representing the output voltage of the boost circuit and the first reference voltage to obtain a compensation voltage; samples the inductance current of the boost circuit to obtain a sampling of the inductance current signal, the first voltage signal is obtained according to the sampling signal of the inductor current, the compensation voltage, the first ramp signal and the switching time of the boost circuit; the first voltage signal is compared with the first ramp signal to obtain to the switch control signal to drive the main power tube of the boost circuit. The invention can obtain better effects of power factor compensation and harmonic suppression.

Description

technical field [0001] The invention relates to the field of power electronics, in particular to a control method and a control circuit for a booster circuit. Background technique [0002] Generally, the Boost circuit is selected as the front-stage PFC circuit topology, which has high conversion efficiency, and the bus capacitance can also suppress and absorb lightning strike energy. According to different power levels and application design requirements, Boost circuit power factor correction control is usually aimed at PFC control and CRM critical control, which are divided into CCM continuous mode. There are great differences in the two control methods and strategies. Generally, the control chips are developed separately, which brings troubles to the user's development and debugging. At the same time, with the continuous improvement of energy efficiency level requirements, improving the light-load working efficiency of PFC circuits has become a typical requirement. Cont...

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): H02M3/157H02M3/158H02M1/42H02M1/14
CPCH02M3/157H02M3/1588H02M1/42H02M1/14Y02B70/10
Inventor 黄必亮
Owner JOULWATT TECH INC LTD