High energy transient absorber of engine on vehicle

A technology for automobile generators and absorption devices, which is applied in the direction of controlling generators, vehicle parts, transportation and packaging through magnetic field changes, and can solve problems such as manufacturing difficulties, difficulties for automobile users, and high prices

Inactive Publication Date: 2003-11-19
林朝楚
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] At present, the power input of automobile electrical appliances is powered by automobile generators. Especially in cars, high-end automobile electrical appliances need a protection device to protect their reliable operation and prevent the reverse electromotive force of automobile generators due to accidents. To destroy automobile electrical appliances, now, in foreign countries, there is an instantaneous high-energy absorption device for automobile generators, which is composed of a sampling circuit and a current absorption circuit. This current absorption circuit is a semiconductor rectifier bridge, but it is difficult to manufacture. Domestic The use needs to rely on imports, and the price is high, which makes it difficult for domestic car users to accept

Method used

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  • High energy transient absorber of engine on vehicle
  • High energy transient absorber of engine on vehicle
  • High energy transient absorber of engine on vehicle

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Embodiment Construction

[0009] The accompanying drawings have shown the structure of the present invention and its embodiments, and further describe the relevant details of the embodiments below in conjunction with the accompanying drawings. The instantaneous high-energy absorbing device for an automobile generator is composed of a reference voltage circuit B, a sampling signal circuit A, a filter circuit E, a comparator C, and a current absorbing circuit F. After the sampling signal circuit A collects a voltage signal, it communicates with the reference voltage circuit After the voltage of B is compared with the comparator C, a voltage is output to the current sink circuit F, and the comparator C is respectively connected to the reference voltage circuit B and the sampling signal circuit A, and the output terminal of the comparator C is connected to the The current absorbing circuit F is connected, and the current absorbing circuit F is grounded through the S pole of the VMOS tube after the resistor ...

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Abstract

An instantaneous high energy absorber for the electric generator of car in order to suppress the instantaneous high voltage is disclosed. The voltag signal sampled by a sampler is compared with reference voltage by comparator to output a voltage signal to a current absorbing circuit which is composed of resistor R and a VMOS transistor whose source is grounded. When VMOS transistor is driven to ON state, it can absorb the instantaneous high current to ground.

Description

technical field [0001] The invention relates to an automobile electrical protection device, in particular to an invention of an instantaneous high energy absorption device for an automobile generator. Background technique [0002] At present, the power input of automobile electrical appliances is powered by automobile generators. Especially in cars, high-end automobile electrical appliances need a protection device to protect their reliable operation and prevent the reverse electromotive force of automobile generators due to accidents. To destroy automobile electrical appliances, now, in foreign countries, there is an instantaneous high-energy absorption device for automobile generators, which is composed of a sampling circuit and a current absorption circuit. This current absorption circuit is a semiconductor rectifier bridge, but it is difficult to manufacture. Domestic The use needs to rely on imports, and the price is high, which makes it difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/01H02P9/30
Inventor 龚国馨林小港贾挺云林朝楚
Owner 林朝楚
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