Power source device and power supply method of wireless vehicle-mounted reversing camera

Abstract

Disclosed is a power source device of a wireless vehicle-mounted reversing camera. The power source device is suitable for being electrically connected between a vehicle-mounted voltage output end and a work circuit of the wireless vehicle-mounted reversing camera, the power source device comprises a time delay switch module and a power source module, one end of the time delay switch module is suitable for being electrically connected to the vehicle-mounted voltage output end, the other end of the time delay switch module is electrically connected with the power source module, and the power source module is suitable for being electrically connected with the work circuit, so the time delay switch module powers off the power source module when an input voltage of the power source device is less than a minimum input voltage of the power source module, and supplies voltage to the power source module when the input voltage of the power source device is greater than the minimum input voltage of the power source module.

Description

technical field [0001] The invention relates to the technical field of electronic applications, in particular to a power supply device for a wireless vehicle-mounted reversing camera and a power supply method thereof. Background technique [0002] Cars are an indispensable means of transportation in modern society. Various electronic devices are used more and more in cars. Most of these electronic devices need to provide stable power supply through the voltage output by the car's engine. The range of vehicle output voltage varies greatly, which puts forward high requirements on the voltage input range of the wireless vehicle reversing camera power supply. For example, when the vehicle is started, the vehicle output voltage may drop sharply in a short time. At this time, if If the output voltage of the vehicle falls below the input voltage range of the power supply of the wireless vehicle reversing camera, it may cause some electronic devices sensitive to voltage drops to mal...

AI Technical Summary

Problems solved by technology

When the car is started, the vehicle output voltage is pulled down instantly and then returns to normal voltage. This process will cause the circuit of the wireless vehicle reversing camera to restart, especially the reconnection of the wireless connection, which increases the time of the wireless connection and even causes the wireless module to Can't reset without working

These problems will affect the normal use of the wireless car reversing camera and bring a poor user experience

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