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Automobile data collection box point-ignition-preventing reset circuit

A data acquisition and reset circuit technology, applied in circuit devices, circuits or fluid pipelines, emergency protection circuit devices, etc., can solve the problems of low enabling voltage and abnormal operation of automobile data acquisition box, so as to avoid excessive loss , Guarantee the effect of service life

Pending Publication Date: 2018-06-15
SHENZHEN XTOOLTECH INTELLIGENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at the moment when the car is ignited, the battery has an instantaneous low level, and the low level will pull down the enabling voltage of the enabling terminal of the power conversion chip, thereby causing the restart phenomenon of the power conversion chip, and the power conversion The restart of the chip leads to the restart of the car data acquisition box, which makes the car data acquisition box not work properly

Method used

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  • Automobile data collection box point-ignition-preventing reset circuit
  • Automobile data collection box point-ignition-preventing reset circuit
  • Automobile data collection box point-ignition-preventing reset circuit

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Embodiment Construction

[0040] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. 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.

[0041] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The occurrences of this phrase in various places in the specification are not necessarily all referrin...

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Abstract

The invention discloses an automobile data collection box point-ignition-preventing reset circuit. The automobile data collection box point-ignition-preventing reset circuit comprises a power supply conversion module, an enabling end power supply circuit, a power supply conversion enabling end locking circuit and a single chip microcomputer; the power supply conversion module performs voltage conversion on an automobile storage battery power supply for supplying a power supply for the automobile data collection box; in automobile ignition, the power supply conversion enabling end locking circuit performs locking on the electric level voltage of the enabling end of the power supply conversion module to prevent reset and restart of the power supply conversion module caused by a condition that the automobile storage battery power supply outputs a low voltage; and the single chip microcomputer performs locking control on the power supply conversion enabling end locking circuit. By virtue of the automobile data collection box point-ignition-preventing reset circuit provided by the embodiment, the enabling end of the power supply conversion module is locked, so that power supply reset inautomobile ignition is prevented, and excessive loss of the automobile storage battery can be avoided through the enabling end power supply circuit.

Description

technical field [0001] The invention relates to the technical field of automotive electronics, in particular to an ignition-proof reset circuit for an automotive data acquisition box. Background technique [0002] The car collection box mainly supplies power to each module of the car collection box through the car battery as the input power supply, and converts the car level power supply to the system power supply of the car collection box through the power voltage conversion chip. Because the enable voltage of the enable terminal of the power conversion chip is also obtained by dividing the power supply of the car battery. Therefore, at the moment when the car is ignited, the battery has an instantaneous low level, and the low level will pull down the enabling voltage of the enabling terminal of the power conversion chip, thereby causing the restart phenomenon of the power conversion chip, and the power conversion The restart of the chip causes the restart of the car data ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/32H02H9/04B60R16/03
CPCH02H9/045H02M1/32B60R16/03
Inventor 闫东京金翔宇杨显平吴凯
Owner SHENZHEN XTOOLTECH INTELLIGENT CO LTD
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