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Voltage regulator for automobile

A technology of voltage regulators and regulators, which is applied in the direction of electrical components, control generators, control systems, etc., can solve the problem of optimization design without considering load power and generator speed, application restrictions of integrated circuit automotive electronic regulators, generators Power loss and other issues, to achieve the effect of optimizing the control transfer function, improving power utilization, and reducing vehicle fuel consumption

Active Publication Date: 2012-12-05
JIANGSU XIANGHE ELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor thermal conductivity of PCB, the application of PCB type integrated circuit automotive electronic regulator is greatly limited
[0005] What is important is that the existing automotive voltage regulator does not take into account the optimal design between the load power and the generator speed, resulting in generator power loss and low utilization

Method used

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Embodiment Construction

[0023] The implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] According to the principle of electromagnetic induction, the induced electromotive force of the generator is: E Φ =C E nΦ, where C E is the generator structure constant; n is the generator speed; Φ is the magnetic flux per pole. due to C E is the structural constant of the motor, which remains unchanged. Therefore, when the speed of the alternator increases, the regulator reduces the excitation current of the generator to keep the output voltage of the generator unchanged; otherwise, if the speed of the generator decreases, that is The excitation current can be increased to keep the output voltage of the generator constant. The alternating current generated by the automobile alternator passes through the rectifier circuit and becomes direct current and is compared with the battery voltage of the battery. If the output voltage is higher ...

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Abstract

The invention discloses a voltage regulator, which comprises a circuit part. The circuit part is respectively connected with a transistor and a central control unit. The central control unit is connected with a protecting circuit, the protecting circuit is connected with the transistor, and the central control unit is also connected with an excitation current controller; the circuit part comprises a voltage setting part, and a reference voltage set value is set; and a controlled transfer function is adopted by the central control unit after being optimized.

Description

technical field [0001] The invention relates to an automobile accessory, in particular, the invention discloses an automobile voltage regulator. Background technique [0002] The power supply of a car is generally composed of four parts: generator, rectifier, regulator and battery. The automobile alternator is driven by the automobile engine to generate direct current or alternating current during the operation of the automobile to provide the electric energy required by the automobile. The generators of modern automobiles are all alternators, and the alternating current generated by them needs to be converted into unidirectional pulsating current by a rectifier. The AC voltage output by the generator changes with the speed of the engine, so the rectified unidirectional pulsating voltage also changes with the speed of the engine, which is very harmful to various electrical appliances on the car. We know that the rated voltage of automotive electrical appliances is generall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/48
Inventor 周维杭王丙祥
Owner JIANGSU XIANGHE ELECTRONICS SCI & TECH
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