High voltage direct current power supply module controlled by DPS (data processing system)

A high-voltage DC power supply and control circuit technology, which is applied in the direction of irreversible AC power input conversion to DC power output, electrical components, output power conversion devices, etc., can solve the problem of inability to guarantee high precision and reliability of the system, and non-programmable power chip , Not easy to upgrade and maintain, etc., to achieve the effect of easy maintenance, convenient upgrade, and easy upgrade

Inactive Publication Date: 2013-03-06
HUNAN FENGRI ELECTRIC GROUP
View PDF7 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing power supplies widely use dedicated power chips such as TL494 and UC3875 to drive switch tubes. The specific power chips themselves are not programmable, have poor controllability, are difficult to expand, and are difficult to upgrade and maintain. At the same time, the power chips are analog chips with analog Errors caused by temperature drift and aging, which are difficult for circuits to overcome, cannot guarantee that the system will always have high precision and reliability

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
  • High voltage direct current power supply module controlled by DPS (data processing system)
  • High voltage direct current power supply module controlled by DPS (data processing system)
  • High voltage direct current power supply module controlled by DPS (data processing system)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, the present invention includes the following components: the power main circuit part and the control circuit based on DSP. The power main circuit includes: EMC protection unit 1, rectification and filtering unit 2, BUCK converter 3, phase-shifted full-bridge controllable inverter 4, high-frequency boost converter 5, voltage doubler rectification unit 6, and filter 7. The DSP-based control circuit includes: a DSP control unit 8, a voltage divider feedback sampling unit 9, a DSP auxiliary power supply and a keyboard / display circuit 10. The input of the power supply is 220V power frequency AC mains, which is filtered by the EMC protection unit 1 to prevent electromagnetic interference, filtered by the rectifier filter unit 2, rectified and filtered to obtain a DC power of about 300V, and then adjusted by the BUCK...

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 high voltage direct current power supply module controlled by DPS (data processing system). The high voltage direct current power supply module comprises a main power circuit and a DSP-based control circuit, wherein the main power circuit comprises an alternating current input unit, an EMC (Electro Magnetic Compatibility) protecting unit, a rectifying and filtering unit, a BUCK converter, a controllable phase-shift full-bridge inverter, a high frequency boost converter, a dual voltage rectifying unit and a filter, and the control circuit comprises a DSP control unit, a partial voltage feedback sampling unit, a DSP auxiliary power supply and a keyboard / display unit. According to the invention, the DSP is used as a control core to guarantee good controllability for the power supply, and the high voltage direct current power supply module is easy to upgrade and maintain. A DSP chip is used for realizing all-digital control on the main circuit of the power supply, and the output voltage is adjustable at a fixed point, so that the precision and stability of the output voltage are improved.

Description

technical field [0001] The invention relates to a high-voltage direct current power supply module, in particular to a PWM type high-voltage direct current power supply module based on DSP control. Background technique [0002] With the development of power electronics technology and switching devices, such as the guidance of new theories and technologies, the progress of new devices and new materials, and the intelligentization of control, etc., switching power supply technology has been widely used in high-voltage DC power supply technology. Using switching power supply technology to generate a square wave or sine wave with a frequency thousands of times higher than the power frequency can greatly reduce the volume and weight of the high-voltage power supply, which is an important development trend of the high-voltage DC power supply. [0003] Existing power supplies widely use dedicated power chips such as TL494 and UC3875 to drive switch tubes. The specific power chips th...

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 Applications(China)
IPC IPC(8): H02M5/458H02M7/25
Inventor 黎福根王怀忠邹子毅
Owner HUNAN FENGRI ELECTRIC GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap