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Converter and method for controlling converter

A technology of converters and digital controllers, applied in the field of converters, can solve the problems of reducing the stability and reliability of the overall system

Inactive Publication Date: 2015-04-29
DELTA ELECTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the slope compensation in the DAC is implemented using a slope compensation signal with a staircase waveform, the control of the slope compensation signal with a staircase waveform for the converter degrades overall system stability and reliability.

Method used

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  • Converter and method for controlling converter
  • Converter and method for controlling converter
  • Converter and method for controlling converter

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Embodiment Construction

[0033] In the following description, specific details are presented in order to provide a thorough understanding of embodiments of the invention. One of ordinary skill in the art will recognize, however, that the invention may be practiced without one or more of the specific details, or in combination with other elements. Well-known implementations or operations have not been shown or described in detail to avoid obscuring aspects of the various embodiments of the invention.

[0034] Terms used in this specification generally have their ordinary meanings in the art and in the specific context in which each term is used. The use of an example anywhere in this specification, including an example of any term discussed herein, is illustrative only, and in no way limits the scope or meaning of the invention or of any exemplified term. Likewise, the present invention is not limited to the various embodiments given in this specification.

[0035] As used herein, "about", "about", "...

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Abstract

A converter and a method for controlling a converter are disclosed herein, in which the converter includes a converting circuit, a current sensing circuit, a digital-to-analog converting circuit, a slope compensation circuit and a comparator circuit. The slope compensation circuit is independent from the digital-to-analog converting circuit, and the slope compensation circuit exclusively generates an analog slope compensation signal. The comparator circuit compares an analog signal generated by the digital-to-analog converting circuit with the superimposition of the analog slope compensation signal and a current sensing signal generated by the current sensing circuit or compares the current sensing signal with the superimposition of the analog slope compensation signal and the analog signal to generate a comparator output signal for a control operation of the converting circuit.

Description

technical field [0001] The invention relates to a converter. More specifically, the present invention relates to converters with slope compensation circuits. Background technique [0002] With the rapid development of power electronics technology, switching converters have been widely used. At the same time, the demand for converters with better performance is still growing. In the control technology used for converters, digital control technology is easy to adopt advanced control methods and flexible control strategies, so digital control technology can improve the control index of converters, reduce the number of components in circuit design, and reduce the control circuit board area , and enhance the reliability of the converter. [0003] In digital control technology, peak current control mode has advantages such as improving system dynamic characteristics and preventing overcurrent in converters, and the control operation of peak current control mode can also be used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/157H02M3/335H02M1/08
CPCH02M3/157H02M3/156H02M3/1588H03M1/747
Inventor 卢昊盛况
Owner DELTA ELECTRONICS (SHANGHAI) CO LTD
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