Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Closed-loop regulated high-precision super-audio pulse power supply

A technology of pulse power supply and super audio frequency, which is applied in the direction of electric pulse generator circuit, energy storage element to generate pulse, electrical components, etc., which can solve the problems that are not conducive to the precise control of plasma spraying process parameters, and affect the improvement of coating quality, frequency and duty. It is difficult to achieve accurate output and other issues

Active Publication Date: 2020-01-24
BEIHANG UNIV
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the open-loop control mode, the frequency and duty cycle of the super-audio frequency pulse current are difficult to achieve accurate output, which is not conducive to the precise control of plasma spraying process parameters, which in turn affects the improvement of coating quality

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
  • Closed-loop regulated high-precision super-audio pulse power supply
  • Closed-loop regulated high-precision super-audio pulse power supply
  • Closed-loop regulated high-precision super-audio pulse power supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0110] The present invention provides a high-precision ultra-audio frequency pulse power supply with closed-loop regulation, and its specific implementation method is:

[0111] The high-precision ultra-audio frequency pulse power supply of the closed-loop regulation includes:

[0112] see figure 1 As shown, rectification and filtering circuit 101, IGBT full-bridge inverter circuit 102, high-frequency power transformer 103, full-wave rectification and filtering circuit 104, super-audio pulse switching circuit 105, pulse peak current detection Hall sensor I 106, super-audio pulse power output Contactor KM 107, PID adjustment circuit 108, PWM generation circuit 109, IGBT drive circuit Ⅰ 110, super-audio pulse current sampling Hall current sensor Ⅱ 111, pulse signal shaping circuit 112, IGBT drive circuit Ⅱ 113, DSP main control circuit 114, contactor KM control circuit 115 , contactor KM coil 116 , base value DC conditioning circuit 117 , synchronous timing control circuit 118 ,...

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 closed-loop regulated high-precision super-audio pulse power supply, which comprises a main circuit, a super-audio pulse current amplitude regulating circuit, a super-audio pulse current frequency and duty ratio closed-loop regulating circuit, a touch screen man-machine interaction circuit and a coupling circuit. According to the invention, high-precision output of the pulse current frequency and the duty ratio of the super-audio frequency (greater than or equal to 20kHz) is realized through a closed-loop regulation method. A contactor is connected to the output end ofa base value direct-current power supply in parallel, the connection is simple, the operation is convenient, and a higher current change rate can be realized. Because of the adoption of an external parallel coupling mode, the super-audio pulse power supply is easy to realize modularization, and can realize external parallel coupling with any type of plasma spraying direct-current power supply. Bycollecting the base value direct current output by the base value direct-current power supply, automatic coupling and control of the super-audio frequency pulse current in plasma spraying can be realized.

Description

technical field [0001] The invention provides a high-precision ultra-audio pulse power supply with closed-loop control, in particular a super-audio pulse power supply with high-precision control of the amplitude, frequency and duty ratio of the super-audio pulse current, belonging to the technical field of special power supply control. Background technique [0002] Plasma spraying is a high-current power supply that discharges between the cathode and anode of the plasma spray gun to form a non-transferred plasma arc and generate high-temperature plasma. When spraying, the powder particles are injected into the plasma jet, and the powder particles are rapidly heated to a molten or semi-melted state in the plasma jet, and the plasma jet hits the surface of the workpiece at high speed to deposit, bond, and cool to form a coating. Plasma spraying technology has the advantages of high arc temperature, large kinetic energy of powder particles, high coating bonding strength, wide a...

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): H02M9/06H02M7/219H02M7/5387
CPCH02M7/219H02M7/53873H03K3/57H02M1/0009H02M1/0012
Inventor 张伟熊振阳许海鹰
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com