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

A circuit and method for automatic measurement of inductance saturation current

A saturation current and automatic measurement technology, applied in the direction of measuring electrical variables, measuring current/voltage, measuring devices, etc., can solve the problems of inconvenient popularization and application, and achieve the effects of easy popularization and application, easy observation and convenient operation

Active Publication Date: 2020-07-31
XIAMEN YAXON NETWORKS CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The voltage and current method needs to continuously provide a large test current, which has high requirements on the power supply of the test equipment. The pulse current test method needs to manually adjust the pulse width and test voltage, such as the patent "201310302287.9". Manual adjustment and observation with an oscilloscope to determine the saturation current point of the inductor is not convenient for popularization and application

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
  • A circuit and method for automatic measurement of inductance saturation current
  • A circuit and method for automatic measurement of inductance saturation current
  • A circuit and method for automatic measurement of inductance saturation current

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0039] see Figure 1 to Figure 2 As shown, a circuit for automatic measurement of the inductance saturation current of the present invention includes: a power supply, a charging capacitor C, a diode D1, a first switch circuit Q1, a second switch circuit Q2, a control circuit U1, an inductance to be tested L1 and a test resistor R;

[0040] The power supply is connected to the charging capacitor C after passing through the first switch circuit Q1; the second switch circuit Q2 is connected in parallel to both ends of the charging capacitor C after the inductance L1 to be tested and the test resistor R are connected in series;

[0041] The diode D1 is connected in parallel to both ends of the charging capacitor C, wherein the anode of the diode D1 is connected to the anode of the charging capacitor C, and the cathode of the diode D1 is connected to the anode of the charging capacitor C;

[0042] The first control terminal of the control circuit U1 controls the closed state of th...

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 circuit and method for automatic inductor saturation current measurement. The circuit comprises a power supply, a charging capacitor, a diode, a first switch circuit, a second switch circuit, a control circuit, an inductor to be measured and a test resistor. According to the invention, a large-capacity capacitor, a microprocessor, a digital tube and a power supply are used to form the circuit which automatically detects the saturation current of the tested inductor; the problem that the inductor saturation current is tested through manual adjustment and observation; the digital tube carries out displaying for detection observation without an additional oscilloscope; the test of the saturation current of the inductor is easier; and the test circuit is easily manufactured, is convenient for general popularization and application, and has not requirement on an operator.

Description

technical field [0001] The invention relates to a circuit and method for inductance saturation current, in particular to a circuit and method for automatically measuring inductance saturation current. Background technique [0002] Chip inductors or plug-in inductors with small inductance are often used in microelectronic devices, and inductors with different specifications need to be selected according to different applications. For an inductor with a magnetic core, when the current flowing through it increases to a certain extent, the magnetic field strength in the magnetic core will no longer increase with the increase of the current. At this time, it is called the inductance saturation state. The current is called the saturation current of the inductor. The saturation of the inductance will cause a sharp drop in the inductance and a sharp rise in the current. The drop in the inductance will cause the system containing the inductance to work unstable, such as the step-up ...

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 Patents(China)
IPC IPC(8): G01R19/00
Inventor 陈远林志强陈茹涛杨锋蔡运文
Owner XIAMEN YAXON NETWORKS CO LTD
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