Car flash controller with overcurrent protection

A flash controller and overcurrent protection technology, applied in the direction of light source, electric light source, lighting device, etc., can solve the problem that the flash controller cannot be cut off to protect the flasher.

Inactive Publication Date: 2018-05-04
GUIZHOU TIANYI ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the technical problem that the existing automotive flash controller cannot be cut off in time to protect the flasher when the load terminal current is too large

Method used

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  • Car flash controller with overcurrent protection
  • Car flash controller with overcurrent protection
  • Car flash controller with overcurrent protection

Examples

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Embodiment Construction

[0015] Below in conjunction with the examples of the above-mentioned drawings, a detailed description will be given to the specific implementation of the car flashing controller that meets the ECE R10 electromagnetic compatibility performance of the present invention.

[0016] A car flashing controller with overcurrent protection, including a seat board 1, an outer cover 2, a bracket 3, a printed circuit board 4, a metal plug 5, a special current sampling circuit for a car, a three-terminal voltage stabilizing circuit, a chip control circuit and two DC relay; the special current sampling circuit for automobiles is composed of a current sampling chip and a sampling resistor; the three-terminal voltage regulator circuit is composed of a three-terminal voltage regulator and a filter capacitor; the chip control circuit is composed of a single-chip microcomputer, corresponding peripheral circuits and triode switching circuits; the above All electronic components, electromagnetic rel...

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PUM

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Abstract

The invention discloses a car flash controller with overcurrent protection. The car flash controller comprises a seat plate, an outer cover, a bracket, a printed circuit board, a metal plug, a specialcurrent sampling circuit for a car, a three-terminal voltage regulator circuit, a chip control circuit and two DC relays, wherein the special current sampling circuit for the car comprises a currentsampling chip and a sampling resistor; the three-terminal voltage regulator circuit comprises a three-terminal voltage regulator and a filter capacitor; the chip control circuit comprises a single chip microcomputer, a corresponding peripheral circuit and a triode switch circuit; and all electronic components, electromagnetic relays and a male tab are integrated on the printed circuit board, are arranged in the outer cover and are arranged in a car cab through the metal plug. An overload judgement program is added to a single chip microcomputer control program, and meanwhile, whether heavy current load is an interference signal or heavy load needs to be distinguished, so that the flash requirement, the constant frequency drop requirement and the failure mode required for general flasher control and the electromagnetic compatibility requirement can be met, and the car flash controller also has an overcurrent protection function.

Description

technical field [0001] The invention belongs to the technical field of automobile electrical appliances, and is especially applied to heavy-duty trucks. Large loads are likely to generate large currents, damage electric equipment and cause potential safety hazards. Background technique [0002] With the continuous development of automotive electronic control technology, the number of automotive electronic equipment has greatly increased, the operating frequency has gradually increased, and the power has gradually increased. On automobiles, especially heavy trucks, the power of turn signals is increasing and the frequency of use is increasing. , In addition, the light load is prone to generate a large current at the moment of switching, and other electrical appliances on the car are prone to generate a large current, short-circuiting occurs, and the car is often burned. The flasher control is burned out or the working life is shortened. In view of the flash control The safety...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCH05B47/10
Inventor 姚宇
Owner GUIZHOU TIANYI ELECTRICAL
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