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Power supply module of variable electrical instrument

A power module and instrument technology, applied in the direction of instruments, electrical components, and adjustment of electrical variables, can solve problems such as difficulties, achieve the effects of simplifying production processes and processes, ensuring safety, reliability, and good stability

Active Publication Date: 2016-02-10
DONGFENG AUTOMOBILE ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the instrument system, the storage of data and the driving of the stepping motor are all completed by the microcontroller (MCU), and under the condition of a fixed software mode, conventionally speaking, a hardware state must realize the above two functions at the same time Very difficult

Method used

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  • Power supply module of variable electrical instrument
  • Power supply module of variable electrical instrument
  • Power supply module of variable electrical instrument

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0023] The principle frame diagram of the power supply module of the present invention is as follows figure 1shown. The instrument power input part circuit 1-1 is respectively connected with the input end of the 12V or 24V power input-5V power output circuit 1-2, the input end of the 12V power input-5V power output circuit 1-3 and the instrument power failure monitoring circuit 1- 5 input connections. The 5V output end of the 12V or 24V power input-5V power output circuit 1-2 is connected with the 5V output end of the 12V power input-5V power output circuit 1-3 through the double-single power selection circuit 1-4. The output terminals of the instrument power failure monitoring circuit 1-5 are connected with the power failure monitoring pins of the microcontroller of the instrument system. The invention adopts a forward-looking and compatible design scheme, and use...

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Abstract

The name of the invention is a power supply module of a variable electrical instrument, belongs to the technical field of automobile electronic control, and mainly aims to realize that an indication state of a pointer of a current 12V or 24V instrument system before the moment of power down remains unchanged, and liquid crystal data is reliably stored. The power supply module is mainly characterized in that the power supply module comprises an instrument power supply input part circuit, a 12V or 24V power supply input-5V power supply output circuit, a 12V power supply input-5V power supply output circuit, a double-single power supply selection circuit and an instrument power supply power down monitoring circuit; the output of the instrument power supply input part circuit is connected with the input ends of the 12V or 24V power supply input-5V power supply output circuit, the 12V power supply input-5V power supply output circuit and the instrument power supply power down monitoring circuit separately; and the output end of the 12V or 24V power supply input-5V power supply output circuit is connected with the output end of the 12V power supply input-5V power supply output circuit through a resistor. The power supply module has the characteristics of the functional mode compatibility and the double-single power supply selective outputs, and the power supply module is mainly used for supplying power for the instrument systems.

Description

technical field [0001] The invention belongs to the technical field of automobile electronic control. Specifically, it relates to a power supply module of an anomalous electrical instrument. Background technique [0002] With the development and progress of automotive electronic technology, the accuracy and precision of vehicle operating condition judgment and related signal processing are increasingly demanding. As an important part of the body electronic system, the automotive instrumentation system involves signal processing of the entire vehicle, fault alarm indication and display of the operating conditions of the entire vehicle, and is the human-machine interface between the driver and the entire vehicle. As the "heart" of the instrument system, the power module is directly related to whether the instrument system can work normally, so the design of the power module of the automotive instrument system is particularly important. [0003] The specific technical backgro...

Claims

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Application Information

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IPC IPC(8): H02M3/00B60R16/03
Inventor 谭小刚侯斐易飞卢平耿向阳刘浩
Owner DONGFENG AUTOMOBILE ELECTRONICS
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