Power management circuit of vehicle-mounted entertainment system
A power management and entertainment system technology, applied in the direction of circuit devices, circuits or fluid pipelines, emergency protection circuit devices, etc., can solve problems that affect the service life of the power supply, poor user experience, and easy power feeding of the vehicle
Pending Publication Date: 2022-04-15
JIANGLING MOTORS
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Problems solved by technology
[0005] Based on this, the object of the present invention is to provide a power management circuit, system, storage medium and equipment of a car entertainment system, which is used to solve the situation that the vehicle is prone to power feeding due to the lack of reasonable circuit protection measures in the prior art , which seriously affects the service life of the power supply and technical problems that cause bad user experience
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[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0027] see Fi...
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The invention provides a power management circuit of a vehicle-mounted entertainment system, which comprises an MCU unit, an MOS tube unit, a signal control unit, a main control chip and a filter circuit, and is characterized in that the input end of the MOS tube unit is connected with a power supply, the output end of the MOS tube unit is connected with the main control chip, and the filter circuit is connected with the power supply and the input end of the MOS tube unit; the main control chip is further connected with the MCU unit and the reset chip, when the circuit voltage is lower than a protection threshold value of the reset chip, the reset chip is triggered to conduct low-voltage protection, the main control chip is made to be in a power-off state, a power source is protected, and when the MCU unit detects that a vehicle ignition signal and a vehicle-mounted power source signal are normal, power is supplied to the main control chip, and the vehicle-mounted entertainment system is restarted. According to the power supply management circuit of the vehicle-mounted entertainment system, the power supply is prevented from being fed through the power supply protection circuit, and the technical problems that in the prior art, due to the fact that reasonable circuit protection measures are lacked, the whole vehicle is prone to being fed, the service life of the power supply is affected, and poor user experience is caused are solved.
Description
technical field [0001] The invention relates to the technical field of vehicle power management, in particular to a power management circuit of a vehicle entertainment system. Background technique [0002] With the continuous development of society, cars have entered thousands of households. With the development and progress of science and technology, cars have more and more functions. [0003] In the automotive industry, in order to enrich the functions of the entertainment system, increase the fun of driving, and provide users with intelligent travel services, the functions of the car entertainment system are becoming more and more complex, and the power distribution and management need to be designed reasonably. The car entertainment system is a car comprehensive information processing system formed by using a car-specific central processor, based on the body bus system and Internet services. [0004] In the existing technology, there are more and more functional modules...
Claims
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Login to View More IPC IPC(8): H02H3/24H02H3/06B60R16/03
Inventor 张梅李妙周涂艺王爱春刘峰学何其骁
Owner JIANGLING MOTORS