CN2325924Y - Multi-function electronic regulator - Google Patents

Abstract

The utility model relates to a multi-function electronic regulator, comprising a housing body, binding posts, an indicator light D< 2 >. An electric accommodating circuit is arranged in the housing body. The circuit is composed of a high-current switching circuit, a voltage accommodating circuit, a short circuit protection circuit and a state displaying circuit, wherein, the high-current switching circuit is composed of a thermistor R< 1 > and a transistor T< 5 >. The voltage accommodating circuit comprises resistors R 1, 2, 3, 4, 10, a capacitor C< 1 >, a voltage-stabilizing diode D< 1 > and transistors T< 1 > and 4. The short circuit protection circuit comprises resistors R 1, R 5, 7, 8, 9, capacitors C 2, 3 and transistors T 2, 3. The state displaying circuit is composed of a resistor R< 11 > and an LED D< 2 >. The radio pole of the transistor T< 5 > is also connected with the excitation winding L< 1 > of the electric generator. The utility model has the advantages of complete functions, high precision, exact voltage accommodation, reasonable circuit design and stable performance.

Description

The multifunction electronic adjuster

The utility model relates to the multifunction electronic adjuster that a kind of alternating current generator of Vehicular power supply system is used.

Use when having the alternating current generator of electronic voltage controller in the Vehicular power supply system, adjuster comes regulator generator voltage by the on/off of control generator excitation winding current, make whole electrical system have the power supply of a lasting stability to supply with, the assurance electrical system is normally moved unlikely breaking down.At present; the electronic controller kind of supplying on the market is more, and these product standards differ, and renewal speed is slow; the circuit of the unreasonable JFT105 transistor npn npn adjuster as east wind EQ1090 usefulness that series automobiles is adorned of the circuit design that has is simple, lacks the short-circuit protection and the demonstration of excitation winding.

The purpose of this utility model is that a kind of function is complete, precision is high, voltage-regulation is accurate, circuit design is reasonable in order to provide, the multifunction electronic adjuster of stable performance.

The purpose of this utility model can realize by following measure:

A kind of multifunction electronic adjuster contains housing, binding post, indicator light D ₂Electronic regulating circuit is housed in housing, and this circuit is made up of high-current switch circuit, voltage regulator circuit, short-circuit protection circuit and status display circuit; Wherein high-current switch circuit is by thermistor R ₁With triode T ₅Current collection level series connection constitute; Voltage regulator circuit is by resistance R 1,2,3,4,10, capacitor C ₁, voltage stabilizing didoe D ₁, triode T1,4 forms, resistance R 1,2,3 is connected on both ends of power, and at resistance R 2,3 two ends shunt capacitance C ₁, diode D ₁Triode T ₁, triode T ₁Collector electrode respectively with resistance R ₄, triode T ₄Base stage series connection, at triode T ₄Collector electrode pass through resistance R ₁₀With triode T ₅Base stage series connection; Short-circuit protection circuit is by resistance R ₁, R5,7,8,9, capacitor C 2,3, triode T2,3 form, in resistance R ₁The end resistance R that is in series with and connects ₈, capacitor C ₃, and pass through resistance R ₇With triode T ₃Base stage link triode T ₅Collector electrode pass through resistance R ₅With triode T ₂Base stage link triode T ₂With triode T ₁Common collector; Status display circuit is at triode T ₅The radio utmost point be in series with resistance R ₁₁, light-emitting diode D ₂Constitute; Triode T ₅Emitter also with the excitation winding L of generator ₁Link.

The utility model has following advantage compared to existing technology:

1, contain high-current switch branch road, voltage-regulation branch road, short-circuit protection branch road and state in the electronic circuit of the utility model design and show branch road, thereby it is multiple functional.

2, the utility model can carry out that voltage is accurate to be adjusted, and its precision height, voltage-regulation are accurate, and general voltage-regulation error is ± 0.1V.

3, reasonable, the stable performance, easy for installation of the utility model circuit design.

Concrete structure of the present utility model is provided by the following drawings:

Fig. 1 is a structural representation of the present utility model

1-housing 2-binding post 3-indicator light D ₂

Fig. 2 is an electronic regulating circuit schematic diagram of the present utility model

The utility model is also incited somebody to action in conjunction with the accompanying drawings, and 1,2 embodiment are described in further detail:

With reference to Fig. 1,2, a kind of multifunction electronic adjuster contains housing 1, binding post 2, indicator light D ₂3; In housing 1 electronic regulating circuit is housed, this circuit is made up of high-current switch circuit, voltage regulator circuit, short-circuit protection circuit and status display circuit; Wherein high-current switch circuit is by thermistor R ₁With triode T ₃Current collection level series connection constitute; Voltage regulator circuit is by resistance R 1,2,3,4,10, capacitor C ₁, voltage stabilizing didoe D ₁, triode T1,4 forms, resistance R 1,2,3 is connected on both ends of power, and at resistance R 2,3 two ends shunt capacitance C ₁, diode D ₁Triode T ₁, triode T ₁Collector electrode respectively with resistance R ₄, triode T ₄Base stage series connection, at triode T ₄Collector electrode pass through resistance R ₁₀With triode T ₅Base stage series connection; Short-circuit protection circuit is by resistance R ₁, R5,7,8,9, capacitor C 2,3, triode T2,3 form, in resistance R ₇The end resistance R that is in series with and connects ₈, capacitor C ₃, and pass through resistance R ₇With triode T ₂Base stage link triode T ₅Collector electrode pass through resistance R ₅With triode T ₂Base stage link triode T ₂With triode T ₁Common collector; Status display circuit is at triode T ₅Emitter be in series with resistance R ₁₁, light-emitting diode D ₂3 constitute; Triode T ₅Emitter also with the excitation winding L of generator ₁Link.

Operation principle of the present utility model is as follows:

Be in series with resistance R 1,2,3 at both ends of power, resistance R 1,2,3 constitutes bleeder circuit, and the DC power supply of adjuster is by direct voltage output and the two in parallel supply of storage battery of generator commutation device.When generator speed low (below 1000 rev/mins), electricity forces down in battery tension, is powered input voltage V to excitation winding by storage battery ₁The voltage V of ordering at bleeder circuit A _ABe lower than voltage-stabiliser tube D ₁Puncture voltage, D flows through ₁The electric current of pipe seldom, so T ₁Pipe ends, T ₄The base stage of pipe is in high potential, thereby T ₄Conducting, T ₄Conducting causes T again ₅Conducting, T ₅The impedance of pipe reduces, and emitter voltage rises, have a big exciting current from storage battery through T ₅Flow to generator.Consume morely when making generator output voltage when generator speed increases institute's voltage rise height that generate electricity or storage battery, power (self-excitation) to its excitation winding by generator, at this moment as if V greater than battery tension _AStill be lower than D ₁Puncture voltage, the state of then regulating branch road does not still change, T ₅Still conducting has exciting current to pass through.Work as V ₁Continue to raise and make V _AGreater than D ₁Puncture voltage, D then ₁Electric current heighten T ₁Pipe has bigger basic radio stream, T ₁The pipe conducting, T ₄The base stage of pipe is in electronegative potential, T ₄Pipe is by making T ₅Also end T ₅Its impedance increases by the back, and emitter voltage drops to zero, has blocked exciting current, forces generator voltage to descend.Adjuster is exactly an output voltage of regulating alternating current generator according to said process.The generator excitation winding is T ₅The load of pipe, its resistance is little, thereby the T that flows through ₅Electric current bigger.If the excitation winding shorted to earth causes T ₅At this moment pipe emitter shorted to earth will have very big electric current and flow through, and be directed at generator and adjuster all burns out.Has only blocking-up triode T ₅, the switching branches impedance is heightened just can prevent big short circuit current.Therefore design short-circuit protection branch road, this route resistance R ₁, R ₅, R ₇, R ₈, R ₉, capacitor C ₂, C ₅, triode T ₂, T ₃Constitute.R ₁Be copper cash resistance and T ₅Series connection is if the excitation winding short circuit just has very big electric current from R ₁By, make R ₁Temperature rises rapidly, and resistance increases, thereby the decline of the voltage at B point place, because T ₅For the PNP pipe, so T ₃Will conducting, and make T ₂Also conducting.Because T ₂Conducting also can cause T ₄Base potential descends, and makes T ₄End T ₅And then also just ended T ₅Its impedance increases by the back, and resistance increases electric current decline on the switching branches so make, and has prevented that big short circuit current from continuing circulation.After short circuit current reduces, R ₁Last temperature descends again, and resistance and then reduces, T ₅, T ₂End T in succession ₄, T ₅Begin conducting again.Subsequent T ₅Pipe will end again, and said process can circulate and carry out.Therefore during the short circuit,, still have pulse current to exist though on switching branches, there is not very big sequential short circuit electric current.Show a route resistance R ₁₁With light-emitting diode D ₂3 form, and are connected on T ₅Between output and the ground.Work as T ₅When conducting output F is high voltage, show that branch road has electric current to pass through, luminous tube 3 is bright, illustrates that operating state is normal.If luminous tube does not work and then represents two kinds of situations: 1. the higher pressure of generating electricity of generator speed is higher than the requirement normal voltage.2. automobile and off-duty are sailed or during speed unhappy (generator do not change or rotating speed low), it then may be the excitation winding short circuit that luminous tube does not work.

Claims (1)

1, a kind of multifunction electronic adjuster contains housing (1), binding post (2), indicator light D _t(3); It is characterized in that in housing (1) electronic regulating circuit being housed, this circuit is made up of high-current switch circuit, voltage regulator circuit, short-circuit protection circuit and status display circuit; Wherein high-current switch circuit is by thermistor R ₁With triode T ₅Current collection level series connection constitute; Voltage regulator circuit is by resistance R 1,2,3,4,10, capacitor C ₁, voltage stabilizing didoe D ₁, triode T1,4 forms, resistance R 1,2,3 is connected on both ends of power, and at resistance R 2,3 two ends shunt capacitance C ₁, diode D ₁Triode T ₁, triode T ₁Collector electrode respectively with resistance R ₄, triode T ₄Base stage series connection, at triode T ₄Collector electrode pass through resistance R ₁₀Connect with the base stage of triode T5; Short-circuit protection circuit is by resistance R ₁, R5,7,8,9, capacitor C 2,3, triode T2,3 form, in resistance R ₁The end resistance R that is in series with and connects ₆, capacitor C ₅, and pass through resistance R ₇With triode T ₁Base stage link triode T ₉Collector electrode pass through resistance R ₅With triode T ₂Base stage link triode T ₂With triode T ₁Common collector; Status display circuit is at triode T ₅Emitter be in series with resistance R ₁₁Light-emitting diode D ₂(3) constitute; Triode T ₅Emitter also with the excitation winding L of generator ₁Link.

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