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

Power supply device and method for in-vehicle electronic equipment

A technology for vehicle-mounted electronics and electronic equipment, which is applied to emergency protection circuit devices, protection against overvoltage, protection against undervoltage or no voltage, etc., and can solve damage to vehicle-mounted electronic equipment and damage to the power supply of vehicle-mounted electronic equipment , Insufficient protection measures and other issues

Active Publication Date: 2016-04-06
AEROSPACE INFORMATION
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Crosstalk interference is that the interference signal generated on the car is transmitted to the on-board electronic equipment through various connecting lines, so that the on-board electronic equipment cannot work reliably
The interference signal is one of the main ways to interfere with the vehicle-mounted equipment through the power line. The light of the above-mentioned interference signal will cause the data of the vehicle-mounted electronic equipment to be inaccurate or lost, and cannot work normally reliably, and seriously cause damage to the vehicle-mounted electronic equipment.
[0004] Now there are many voltage regulator chips for automotive power supplies, but the protection measures are not comprehensive enough.
The worse the condition of the vehicle, the stronger the crosstalk interference. It often occurs that the power supply of the vehicle electronic equipment is damaged due to insufficient protection measures for the voltage regulator chip of the vehicle power supply, and the entire system of the vehicle electronic equipment is damaged due to the damage of the power supply of the vehicle electronic equipment.

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
  • Power supply device and method for in-vehicle electronic equipment
  • Power supply device and method for in-vehicle electronic equipment
  • Power supply device and method for in-vehicle electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The embodiment of the present invention provides a power supply device for in-vehicle electronic equipment in view of automobile crosstalk interference, and its specific structure is as follows figure 1 As shown, it includes: a vehicle-mounted power supply unit 11, a voltage detection protection unit 12, and an electronic switch unit 13,

[0023] The vehicle power supply unit 11 is connected to a voltage detection protection unit and an electronic switch unit. It is used to output voltage to the voltage detection and protection unit and the electronic switch unit, which can be realized by an on-board battery.

[0024] The voltage detection and protection unit 12 is connected to the vehicle power supply unit and the electronic switch unit. It is used to detect the voltage output from the on-board power supply unit, and determine whether the detected voltage value is lower than the set voltage too low threshold value or higher than the set voltage too high threshold value, if ...

Embodiment 2

[0041] The above-mentioned figure 2 The specific implementation circuit diagram of the power supply device of the vehicle electronic equipment shown is as follows image 3 Shown, including: vehicle power supply, power input filter and protection circuit, automotive ACC key door switch control circuit, voltage undervoltage trigger circuit, voltage overvoltage trigger circuit, electronic switch circuit, power supply voltage regulator circuit, and power supply of electrical equipment Control circuit. The functions of each circuit are described below:

[0042] Such as image 3 As shown, the power input end of the car electronic equipment is directly connected to the car battery, so that the interference signal generated on the car must pass through the connection line to the battery end to enter the car equipment power supply. The crosstalk signal is reduced by the attenuation of the connection line and the battery absorption. The crosstalk interference signal strength.

[0043] Such...

Embodiment 3

[0074] This embodiment provides a power supply method for vehicle-mounted electronic equipment, and its specific processing flow is as follows: Figure 4 As shown, including the following processing steps:

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 embodiment of the invention relates to a power supply device and a power supply method of a vehicle-mounted electronic device. The power supply method mainly comprises the steps of receiving the voltage output by a vehicle-mounted power supply through an electronic circuit, detecting the voltage, judging whether a voltage value obtained through the detection is lower than a set voltage over-low threshold value or higher than a set voltage over-high threshold value, and switching off the electronic circuit through an electronic switch if so; and outputting the voltage to the vehicle-mounted electronic device through the electronic circuit if not. According to the power supply device and the power supply method, which are disclosed by the embodiment of the invention, the situation of switching off a power supply of the vehicle-mounted electronic device in time when the voltage output by an automobile vehicle-mounted power supply is in the phenomena of under-voltage and over-voltage can be realized, the vehicle-mounted electronic device can be prevented from being damaged due to the damage of the power supply of the vehicle-mounted electronic device caused by over-high voltage output by the power supply of an automobile power supply and can be prevented from working unreliably due to over-low voltage output by the power supply of the vehicle-mounted electronic device caused by over-low voltage output by the automobile power supply, and the influence of various interferences such as crosstalk interference of the vehicle-mounted power supply on the vehicle-mounted electronic device can be effectively solved.

Description

Technical field [0001] The present invention relates to the field of electronic application technology, and in particular to a power supply device and method for vehicle-mounted electronic equipment. Background technique [0002] Cars are an indispensable means of mobile transportation in our modern society. There are more and more electronic devices in cars, and cars have very strong spatial radiation interference, crosstalk interference, etc. due to their own existence and external conditions. interference. [0003] Crosstalk interference is the interference signal generated in the car is conducted to the vehicle electronic equipment through various connecting wires, so that the vehicle electronic equipment cannot work reliably. The interference signal interferes with the vehicle-mounted equipment through the power line is one of the main ways. The lighter interference signal makes the data of the vehicle-mounted electronic equipment inaccurate or lost, cannot reliably work norm...

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): B60R16/02H02H3/24H02H3/20H02H11/00
Inventor 杨会平马振洲张尊兰王顺仁夏栩
Owner AEROSPACE INFORMATION