Unlock instant, AI-driven research and patent intelligence for your innovation.

A Realization Circuit of Power Output Interface with Heterogeneous Protection

A power output and protection circuit technology, which is applied in the field of electromechanical control of airborne computers, can solve problems such as common mode faults, and achieve the effect of improving reliability

Active Publication Date: 2021-10-15
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, with the rapid development of my country's aviation technology, the requirements for the size, weight and reliability of airborne electronic equipment are getting higher and higher. The traditional isomorphic protection design has common mode faults between different protection points.

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 Realization Circuit of Power Output Interface with Heterogeneous Protection
  • A Realization Circuit of Power Output Interface with Heterogeneous Protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Such as figure 1 As shown, in the present invention, the FPGA control signal is output to the TPS2492 through the D2 drive circuit, and then drives the N-channel power field effect transistor to complete the power output control, and at the same time, the voltage at both ends of the sampling resistor Rsense on the power loop is recovered for two different Structural protection circuit use: one protection circuit uses N1 current sampling amplifier, N2 comparator and FPGA to realize overcurrent protection of power output interface; the other uses high open driver TPS2492 to realize short circuit protection of power output interface.

[0020] FPGA, drive circuit D2 and high-open driver D3 cooperate to control and drive the power FET, including sampling the power loop current by using the sampling resistor Rsense, and designing heterogeneous over-current and short-circuit protection point protection methods: the over-current protection point adopts current After sampling an...

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 heterogeneous protection power output interface realization circuit. The realization circuit includes: a short-circuit protection circuit and an FPGA; wherein, the short-circuit protection circuit includes: an N-channel power field effect transistor V1 and a high-open driver. The present invention controls the N-channel enhanced power field effect transistor V1 through the drive circuit and the high-open driver, and then realizes the power interface control, and converts the power output current into a voltage signal through the sampling resistor Rsense, which is used by the heterogeneous protection circuit: adopt The high-open driver realizes the short-circuit protection of the power output interface.

Description

technical field [0001] The invention belongs to the field of electromechanical control of an airborne computer, and proposes a power output interface realization circuit for heterogeneous protection. Background technique [0002] With the increase of multi-point aircraft power loads and electrical equipment and the highly integrated system products, more and more power output controls are integrated by computer interface products, which are mostly used for motor, contactor control and sensors in airborne electromechanical systems power distribution. At the same time, with the rapid development of my country's aviation technology, the requirements for the size, weight and reliability of airborne electronic equipment are getting higher and higher. The traditional isomorphic protection design has common mode faults between different protection points. Contents of the invention [0003] Purpose of the invention: A heterogeneous protection power output interface implementation...

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): H02H3/08
CPCH02H3/08
Inventor 张宇坤刘卫华范新明郭建奇孙少华郭警涛
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA