Self-excitation single-functional vehicle voltage regulator

Abstract

The invention discloses a self-excitation single-functional vehicle voltage regulator, which comprises five functional terminals, a voltage regulating circuit, a switch control circuit and a signal sampling module, wherein the five functional terminals are P, B+(S), D+, F and E. The voltage regulating circuit comprises triodes Q2 and Q3, a switch tube Q1, capacitors C1 and C2, resistors R1, R2, R3, R4, R5 and R6, wherein the base of Q3 is connected to B+ through R1 and is connected to E through R2 and C1; the collector of Q3 is connected to B+ through R3; the emitter of Q3 is connected to the cathode of a voltage regulator tube ZD1; the base of Q2 is connected to the anode of ZD1 while is connected to E through R4; the base of Q2 is connected to F through R6 and C3; the base and the collector of Q2 are connected through C2; the collector of Q2 is connected to B+ through R5 and is connected to the grid of Q1; the emitter of Q2 is connected to E; the grid of Q1 is connected to E through a voltage regulator tube ZD2; the drain of Q1 is connected to F; the source of Q1 is connected to E; and a diode D1 is connected between D+ and F. The invention has the advantages of low cost, stable product property, high reliability and wide adaptability.

Description

technical field [0001] The invention relates to an automobile voltage regulator, in particular to a novel self-excitation single-function automobile voltage regulator. Background technique [0002] The electrical system on the car is mainly powered by the car generator, and the regulator is the core component that controls whether the generator is generating power or not, and is an indispensable and important part of the car power generation system. [0003] At present, the existing single-function series regulators all need to rely on the indicator light connected to the battery to provide a large excitation current through the rotor coil of the motor to generate a magnetic field, and the stator rotates to cut the magnetic field to generate current, thereby enabling the generator to generate electricity. The function terminals of the single-function series regulator are generally four terminals B+, D+, F, E or three terminals D+, F, E. Such a regulator is mainly composed of...

AI Technical Summary

Problems solved by technology

Because the LED light-emitting tube on the instrument can only provide a small excitation current for the motor, and the small magnetic field generated by the small excitation current cannot make the generator generate electricity quickly at a low speed, and it cannot meet the needs of the car in the electric motor. Idle speed can also make the generator generate electricity, which cannot meet the current national requirements for energy saving and emission reduction in the automobile industry.

[0006] 2) poor adaptability

With the development of new engineering vehicles, engineering vehicles require the generator to work without connecting the indicator light and the ignition switch. However, the low-cost single-function regulators commonly used at present do not have this function, and an external indicator light or The ignition switch provides excitation current to the generator to make it generate electricity

Images