High-power power supply load meter

A technology of high-power power supply and load meter, which is applied in the direction of power supply testing, electrical measuring instrument parts, instruments, etc., can solve the problem that the load does not meet the needs of power supply detection, and achieve the effect of high current accuracy and stability

Active Publication Date: 2011-11-23
MOSO POWER SUPPLY TECH
View PDF8 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned shortcoming that the load used for detecting power supply in the prior art does not meet the requirements of power supply detection, the present invention provides a new

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-power power supply load meter
  • High-power power supply load meter
  • High-power power supply load meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] This embodiment is a preferred implementation mode of the present invention, and other principles and basic structures that are the same or similar to this embodiment are within the protection scope of the present invention.

[0020] Please see attached figure 1 And attached figure 2 , the present invention mainly includes a constant resistance mode reference voltage module, a constant voltage constant current mode reference voltage module, a control unit, a first transfer switch S1 and a second transfer switch S2, the first transfer switch S1 controls the constant resistance mode reference voltage module and controls Unit connection, when the constant resistance mode reference voltage module is connected to the control unit, the present invention works in the constant resistance mode, the second transfer switch S2 controls the constant voltage and constant current mode reference voltage module to be connected to the control unit, when the constant voltage and constant...

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-power power supply load meter which can switch among a constant voltage mode, a constant current mode and a constant resistance mode and can meet the detection needs of various power supplies. The high-power power supply load meter is a practical power supply load meter which can realize the load functions of various modes only by use of simple circuit and elements, can switch among the constant current state, constant voltage state and constant resistance state according to the test needs, and can perfectly meet the needs for load in the test of high-power equipment. According to the invention, an MOS (metal oxide semiconductor) tube and a manganese/copper wire resistor form a load circuit, and current precision control is performed by use of a current comparator; and the mode switch among the constant resistance mode, constant voltage mode and constant current mode can be performed by use of a group of conversion switches. The high-power power supply load meter disclosed by the invention can achieve very high current precision and stability and meet the test requirements of all equipment; in each mode, the magnitude of current, voltage and resistance is regulated by use of a multi-turn potentiometer; and moreover, when the high-power power supply load meter disclosed by the invention is in use, the working conditions of the load meter can be monitored by adding an ammeter and a voltmeter to the input end.

Description

[0001] technical field [0002] The invention discloses a power supply testing instrument, in particular to a high-power power supply load instrument. Background technique [0003] With the continuous development and progress of electronic and electrical technologies, the application of power supplies in people's daily life is becoming more and more extensive. General electronic products need to be tested after production to ensure the quality of the products shipped out of the factory. With the diversification of the types and forms of power supplies, the form of loads used to detect power supplies is becoming more and more complex. According to the power supply Depending on the type of power supply, some power supplies require a load in constant current mode during detection, some power supplies require a load in constant voltage mode during detection, and some power supplies require a load in constant resistance mode during detection. The requirements are more an...

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): G01R1/28G01R31/40
Inventor 顾永德苏周王永彬徐兵董洁
Owner MOSO POWER SUPPLY TECH
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