CN2101346U

CN2101346U - Silicon rectified ac generator voltage regulator for automobile

Info

Publication number: CN2101346U
Application number: CN 91217823
Authority: CN
Inventors: 吴建新; 姚祥华
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-05
Filing date: 1991-07-05
Publication date: 1992-04-08

Abstract

The utility model relates to a silicon rectified AC generator voltage regulator for automobiles, belonging to the technical field of electronic technologies. The Vi terminal of the silicon rectified AC generator voltage regulator is connected with the output terminal of a generator, and the Vo terminal is connected with batteries. The utility model is characterized in that a resistor R1 is connected with one W1 electrode tip, a resistor R2 is connected with the other W1 electrode tip, a sliding contact is connected in parallel with one W1 electrode tip and then connected with the R terminal of an integrated package TL431C, the R terminal is connected with a capacitor C to the ground, the 1CK terminal is connected with the power supply Vi through a resistor R3 and connected with the base electrode of a transistor T3, the positive terminal of a diode D1 is connected with the base electrode of the T3 and connected with the ground through a resistor R4, the emitting electrode of the T3 is connected with the ground, the collecting electrode of the T3 is connected with the base electrode of a transistor T2 through a resistor R5, the T2 and T1 compose a composite PNP-typed tube, a diode D2 is connected between the output power supply and the ground, a resistor R7 and a diode D4 are connected in series between the output terminal and the ground, and a resistor R6 and a diode D3 are connected in series between the input terminal and the ground.

Description

Silicon rectified ac generator voltage regulator for automobile

The utility model relates to electronic technology, is applied to all band silicon rectifier automobile current generators.

Existing this class voltage regulator mainly contains two kinds, a kind of is autopulse, another kind is the transistor type voltage regulator, the terminal voltage of the adhesive control generator of the former main electromagnet, exist poor, the easy contact of ablating of control precision, maintenance, adjust difficulty, shortcoming such as shock resistance is weak; Latter's serviceability temperature scope is less, has limited range of application, simultaneously, owing to adopt diode to do temperature-compensating, can not conform to the power tube temperature characterisitic fully, has reduced control precision.

The purpose of this utility model is to propose a kind of novel voltage adjuster to make it reach good degree of regulation in operating temperature range, thereby makes lead acid accumulator obtain constant voltage charge, the Acceptable life of protection and prolongation storage battery.

Concrete scheme of the present utility model is: resistance R 1 is connected potentiometer W1 termination, another termination of R2 and W1 links to each other, sliding contact is with W1 one termination and receive the 1(R of ic chip after connecing) end, the R end connects a capacitor C over the ground, ic chip 3(K) end meets power supply Vi by R3, connect triode T3 base stage by voltage-stabiliser tube D1, the positive termination triode of D1 T3 base stage is also passed through R4 ground connection, the T3 grounded emitter, collector electrode connects the T2 base stage by R5, and T2 forms compound positive-negative-positive pipe with T1, and diode D2 is connected on out-put supply with between the ground, between output and ground, R6 is serially connected in input with between the ground with D3 to R7 with the D4 series connection.Vi sending and receiving motor output end, V0 connects storage battery.

Below in conjunction with accompanying drawing this programme is described in detail.

Fig. 1 is the utility model electrical schematic diagram, wherein the IC model is TL431C, and T1 is 2N3055, and T2 is 9012, T3 is 9013, with reference to Fig. 1, this voltage regulator course of work is: when generator voltage was low, 1 terminal voltage of IC was less than set point, this moment, 3 ends of 1C were exported high potential, energy is led in the D1 puncture, T1, and T2 and T3 also are in the admittance state, by the V0 end field winding is powered, when the end of generator was increased to setting along with the quickening of exciting curent increase or rotating speed, the terminal voltage of 1C rose to set point, and this moment, IC3 held output low level, D1 ends, T1T2T3 all ends immediately, the field winding outage, and generator voltage descends.Said process carries out repeatedly, keeps the stable of generator output voltage.D1 ends and conducting between 2.55V and V1, so switching rate is very fast.T1, T2 and T3 work on off state fully, and be favourable to reducing temperature rise.The effect of R6 and D3 is that it exchanges negative half period by these two elements after the silicon diode of generator punctures, and D3 is bright.Be attempted by the output of adjuster after R7 and the D4 series connection, when the ammeter of and pilot dial plate bright as D4 or charging indicator light still show discharge, can be judged as field winding open circuit or brush loose contact.

The performance of this product is mainly by IC and T1, T2, and T3 guarantees.IC belongs to accurate pressurizer, and there is the temperature compensation function manufacturing firm inside when producing and because its input current minimum (4uA), sampling element R1, and R2, W is minimum to its set point influence, thereby makes complete machine stability good.

Claims

The silicon rectifier automobile alternator voltage regulator, Vi termination generator output end, V0 connects storage battery, feature of the present utility model is, resistance R 1 is connected the W1 termination, and another termination of R2 and W1 links to each other, and sliding contact is with W1 one termination and receive the R end of integrated package TL431C after connecing, its R end connects a capacitor C over the ground, the 1CK end meets power supply Vi by R3, connects the T3 base stage by D1, and the positive termination T3 base stage of D1 is also passed through R4 ground connection, the T3 grounded emitter, the T3 collector electrode connects the T2 base stage by R5, and T2 and T1 form compound positive-negative-positive pipe, and diode D2 is connected on out-put supply with between the ground, between output and ground, R6 is serially connected between input and the ground with D3 R7 with the D4 series connection.