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

High-current device of high-precision standard DC current source

A DC current source and high current technology, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., to achieve the effect of improving the performance-to-noise ratio, enhancing repeatability and long-term stability, and enhancing anti-interference ability

Inactive Publication Date: 2010-01-27
SHENZHEN CLOU ELECTRONICS
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a high-precision standard DC current source high-current device, which solves the problem of high-current output of the standard DC current source

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-current device of high-precision standard DC current source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] As shown in Figure 1, a high-precision standard DC current source high-current device includes a standard DC power amplifier branch, a signal control module 1 and an output module 3; the standard DC power amplifier branch, signal control module 1 and output module 3 perform power connect.

[0017] The standard DC power amplifier branch includes a signal processing module 21 , a current amplification module 22 and a feedback sampling module 23 .

[0018] The signal control module 21 is provided with a single standard control signal module or / and an independent standard control signal module; according to the actual situation, an independent standard control signal can be configured for each standard DC power amplifier branch, or the entire high-current device can be configured Single standard control signal module.

[0019] The standard DC powe...

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 discloses a high-current device of a high-precision standard DC current source, which relates to the field of high-precision standard DC current products. The high-current device comprises a standard DC power amplification branch, a signal control module and an output module which are connected electrically, wherein the standard DC power amplification branch comprises a signal processing module, a current amplification module and a feedback sampling module. The invention has the advantage that by utilizing the standard DC power amplification branch, the invention can expand conveniently according to actual states, output higher high-index DC high current, enhance the signal-to-noise ratio of a circuit and improve the whole anti-interference performance. Feedback signals with high signal-to-noise ratio form a digital closed ring to greatly strengthen the repeatability and the long-term stability of the circuit.

Description

technical field [0001] The invention relates to the field of high-precision standard direct current products, in particular to a high-precision standard direct current source high-current device. Background technique [0002] With the development of modern science and technology, the society has higher and higher requirements for high-precision instruments and meters. In the field of standard DC current sources, the standard DC current sources currently on the market are all below 30A. The technology used Both use Hall sensor sampling or directly sample the voltage by flowing a large current through the sampling resistor, and ensure the current index through Ohm's law I=U / R, but the sensitivity of the Hall sensor is too low, so it is difficult to obtain high stability DC large current output; if the sampling resistor is used, the heating of the resistor will cause the resistance of the resistor itself to change. If the sampling resistor is reduced, the sampling voltage will ...

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): G05F1/46
Inventor 卢维
Owner SHENZHEN CLOU ELECTRONICS
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