High-voltage end current detection circuit

A detection circuit and high-voltage technology, which is applied in the direction of adjusting electric variables, control/regulation systems, instruments, etc., can solve the problems of reducing system costs and the inability to realize accurate detection of high-voltage terminal currents, and achieve system cost reduction, easy implementation, and The effect of simplifying the system

Inactive Publication Date: 2012-02-22
SHANGHAI CONSONANCE ELECTRONICS
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention solves the problem that the accurate detection of the high-voltage terminal curr

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 end current detection circuit
  • High-voltage end current detection circuit
  • High-voltage end current detection circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] figure 1 Shown is the high-voltage terminal current detection circuit provided by the present invention:

[0029] The corresponding circuit diagram of the present invention is as figure 1 Shown:

[0030] The high-voltage terminal current detection circuit is composed of a mapping unit, a correction feedback unit 11, a modulation unit, an execution unit and a load; the output current of the high-voltage terminal is mapped by the mapping unit to form a primary current Ii, and the correction feedback unit 11 performs correction according to the primary current Ii to generate The feedback current Ifb is fed back to the modulation unit, and the modulation unit generates a control signal according to the feedback current Ifb, and transmits it to the execution u...

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-voltage end current detection circuit. The circuit comprises a mapping unit, a correction feedback unit, a modulation unit, an execution unit and a load, wherein the correction feedback unit comprises a resistance potential-divider network, a reference voltage unit, a subtraction unit, a first logarithm operation unit, a second logarithm operation unit, a current superposition unit, a voltage/current conversion unit and a summator. The current has the characteristics of high current detection accuracy, wide application range and low system cost.

Description

technical field [0001] The invention relates to a high-voltage terminal current detection circuit, which is mainly applied to current modulation during high-voltage power supply. Background technique [0002] In systems powered by high voltage, it is often necessary to detect and control the amount of current at the high voltage end. If high-voltage devices are used to detect and control the current at the high-voltage end, the cost will be very high, and sometimes it is impossible to realize when the voltage is very high. [0003] In order to detect and control the amount of current at the high voltage end, the main methods currently used include: [0004] (1) A compromise solution is adopted to detect and control the current at the low voltage end of the current loop. [0005] (2) Use a high-voltage integrated circuit to detect, process and control the amount of current. [0006] The first method above is easy to implement and low in cost. The disadvantage is that some...

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): G05F1/565
Inventor 于志升
Owner SHANGHAI CONSONANCE ELECTRONICS
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