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Direct-current chopper voltage regulating circuit

A technology of DC chopper and voltage regulation circuit, which is applied in the field of DC chopper and voltage regulation circuit, high-efficiency and low-cost DC chopper and voltage regulation circuit, can solve the problems of low efficiency of voltage regulation circuit, and achieve convenient control and safety performance. Good and efficient effect

Active Publication Date: 2020-01-24
杭州国彪超声设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing voltage regulation circuits are often less efficient and more expensive

Method used

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  • Direct-current chopper voltage regulating circuit
  • Direct-current chopper voltage regulating circuit
  • Direct-current chopper voltage regulating circuit

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0027] The invention considers the characteristics of the voltage regulating circuit and the actual application requirements in the ultrasonic power supply, and provides a DC chopper voltage regulating circuit with isolation and overcurrent protection and convenient adjustment.

[0028] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conj...

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Abstract

The invention discloses a direct-current chopper voltage regulating circuit. The circuit comprises a direct-current chopper control module, a direct-current chopper voltage regulating module and an overcurrent protection module; the direct-current chopper control module is used for outputting pulse signals in a positive direction and transmitting the pulse information to a BUCK main circuit so asto control the on-off time of the switching tube of the BUCK main circuit; the direct-current chopper voltage regulation module is used for controlling the output voltage of the BUCK main circuit according to the pulse signals outputted by the direct-current chopper control module; and the overcurrent protection module is used for comparing the obtained output voltage of the BUCK main circuit witha preset overcurrent point voltage threshold value, and outputting a high level when the output voltage is greater than the overcurrent point voltage threshold value so as to stop the output of the pulse signals of the direct-current chopper control module. According to the circuit provided by the invention, the characteristics of a voltage regulating circuit and the requirements of the actual application of the voltage regulating circuit to an ultrasonic power source are considered. The circuit has the advantages of isolation, overcurrent protection, convenience in regulation and the like.

Description

technical field [0001] The invention relates to the technical field of ultrasonic application, relates to a DC chopper voltage regulation circuit, in particular to a high-efficiency and low-cost DC chopper voltage regulation circuit applied to ultrasonic processing. Background technique [0002] Ultrasonic machining technology is a new type of processing technology formed by applying controllable ultrasonic frequency vibration along a certain direction to workpieces or tools in traditional manufacturing and processing technologies. It can improve the surface quality of processed workpieces, reduce the wear of processing tools, reduce The temperature of the processing area and the reduction of cutting force have many advantages. The basic device of ultrasonic machining (USM) is mainly composed of ultrasonic generator, transducer vibration system, abrasive supply system and machine tool table. The ultrasonic generator uses a commonly used ultrasonic power supply, and the tran...

Claims

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Application Information

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IPC IPC(8): H02M3/158H02H7/12
CPCH02H7/1213H02M3/158
Inventor 席维
Owner 杭州国彪超声设备有限公司
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