CN108076558A - The LED light method for stabilizing voltage and circuit of input voltage fluctuation variation can be adapted to automatically - Google Patents

Abstract

The present invention relates to a kind of LED light method for stabilizing voltage and circuit that can adapt to input voltage fluctuation variation automatically；This method is based on the circuit including field-effect tube or triode and LED light composition；The adaptive Voltage stabilizing module being electrically connected with the grid of field-effect tube or the base stage of triode is set, and adaptive Voltage stabilizing module is also electrically connected with input power；Adaptive Voltage stabilizing module, which has, is charged and discharged two different current channels；When voltage difference when input power fluctuates causes the adaptive Voltage stabilizing module to discharge, adaptive Voltage stabilizing module can be by discharge channel repid discharge, and at this moment the absolute value of the voltage of adaptive Voltage stabilizing module quickly reduces；When voltage difference when input power fluctuates causes input power to charge to adaptive Voltage stabilizing module, adaptive Voltage stabilizing module can be charged by charge tunnel, at this moment the absolute value rise of the voltage of adaptive Voltage stabilizing module.LED light method for stabilizing voltage and circuit of the present invention have many advantages, such as simple circuit structure, at low cost, power stability and safe and reliable.

Description

The LED light method for stabilizing voltage and circuit of input voltage fluctuation variation can be adapted to automatically

【Technical field】

The present invention relates to the circuit device for general electric light source, more particularly to the power supply circuit and its control device of LED, especially It is to be related to the LED light method for stabilizing voltage and circuit that can adapt to input voltage fluctuation variation automatically.The LED of the present invention is English The abbreviation of Light Emitting Diode, Chinese are meant " light emitting diode ".

【Background technology】

In recent years, for LED as a kind of energy saving environmental protection product, application is more and more extensive, such as general lighting, mark and letter Number and for backlight of display panel and video screen etc..LED drive circuit is used to provide for power supply to LED.It is existing Technology LED drive circuit is usually the driving circuit of high power factor, much can all there is the phenomenon that stroboscopic；Wherein the one of stroboscopic It is a the reason is that after AC rectification generate double frequency voltage influence of fluctuations to the voltage for being output to LED light, so as to export LED light Electric current also fluctuates and generates stroboscopic phenomenon accordingly；Such as after 50 hertz of AC rectification frequency multiplication be exactly 100 hertz, it generates Stroboscopic be exactly 100 hertz of stroboscopic, although naked eyes cannot be directly perceptible 100 hertz of LED light stroboscopic, having frequency for a long time It can affect vision under the light of the LED light of sudden strain of a muscle, also influence health of human body.

Referring to Figure 1A, the constant-current source in the Figure 1A is that LED lamp drive circuit generates, preferable constant-current source such as Fig. 1 F institutes Show, be a straight line without fluctuating;But in the LED lamp drive circuit of actually many alternating currents, high power factor is particularly LED lamp drive circuit, output actual current waveform as referring to figure 1E, average current is constant current, but includes many friendships The component of stream, the component for being exactly these exchanges cause so-called LED light stroboscopic.Constant-current source comprising AC compounent falls in LED light On voltage VAC be fluctuation voltage, as shown in figure iD, voltage waveform is the sine wave of fluctuation, and the circuit in Figure 1A is not appointed What regulator circuit.Assume that constant-current source connects in figure 1A is 50 hertz of alternating current, the AC compounent generated after rectification frequency multiplication It it is exactly 100 hertz, LED light power frequency is exactly 100 hertz, and period of waves is exactly 10 milliseconds.

AC compounent is filtered out, removes stroboscopic it is necessary to increase pressure-stabilizing constant flow circuit.Referring to Figure 1B, which is known A kind of LED pressure-stabilizing constant flows circuit, the LED pressure-stabilizing constant flows circuit include resistance R100, resistance R200, zener diode D100, field The anode and cathode of input power are connected electrically in after effect pipe Q100 and LED light, resistance R100 and zener diode D100 series connection Between, the anode of wherein zener diode D100 connects the cathode of input power, and resistance R100 is electrically connected with the anode of input power, The grid G of field-effect tube Q100 is connected electrically between resistance R100 and zener diode D100, and LED light is connected electrically in field-effect tube Between the drain D of Q100 and the anode of input power, it is in series between the source S of field-effect tube Q100 and the cathode of input power Resistance R200；When input voltage VAC is fluctuated, zener diode D100 stabilizes the grid G of N-channel type field-effect tube Q100 Voltage, the source S maximum voltage of such field-effect tube Q100 are also just stablized, then the maximum current for flowing through resistance R200 is also just steady It is fixed, so the maximum current for flowing through LED light is also just stablized；Flow through the electric current of LED light as shown in fig. 1F.The LED constant current of Figure 1B is driven Although dynamic circuit can work well in many cases, LED light electric current is allowed to stablize, flows through the electric current of LED light by voltage-stabiliser tube The influence of D100 and resistance R200 and immobilize；When the electric current of LED pressure-stabilizing constant flows circuit output to LED light becomes larger, also It is when inputting the power rise of LED light, whole fluctuation voltage VAC rises（Input ceiling voltage and input minimum voltage all on It rises）, flowing through the electric current of LED light will not rise and cause the waste of electric energy；When the change of input power power is small, fluctuation voltage is inputted Entire lowering, the electric current for flowing through LED light become smaller, and the electric current for flowing through resistance R200 also becomes smaller, and at this moment LED pressure-stabilizing constant flows circuit is not just It can work, LED light is still present with stroboscopic；The LED pressure-stabilizing constant flow circuits of Figure 1B are suitble to the LED light of constant brightness, are not suitable for needing The LED light that brightness regulation is wanted to change.LED light in the circuit diagram can be single led or multiple LED series connection or It is in parallel again after multiple LED connect.

Referring to Fig. 1 C, which is a kind of constant-current drive circuit for LED light light modulation that the applicant had applied, including electricity Pressure adjustment module 10, field-effect tube Q110 and LED light, the LED light are electrically connected with the source S of the field-effect tube Q1, voltage Module 10 is adjusted by adjusting the voltage of the grid G of the field-effect tube Q110 to adjust the source S of the field-effect tube Q110 Voltage, change to reach light modulation so as to adjust the electric current for being output to LED light.This constant-current drive circuit can input In the case that voltage VAC is fluctuation voltage, change the electric current of LED light by changing the voltage of voltage regulator module 10；This Constant-current drive circuit will adjust the electric current of LED light, it is necessary to the external voltage because usually changing voltage regulator module 10（Such as control The signal that coremaking piece is sent）And it is necessary to be known in advance input voltage VAC fluctuation when minimum voltage or in addition have measurement it is defeated Enter the method for the minimum voltage of voltage VAC, the electricity when voltage of voltage regulator module 10 being allowed to be fluctuated less than or equal to input voltage VAC The sum of cut-in voltage Von of minimum Vmin and N-type field-effect tube Q110 is pressed, the electric current of such LED light could be stablized.Fig. 1 C's LED light electric current will drive with front end LED the curent change of constant-current source output and be changed, and keep constant current, control circuit Design is just very complicated, it is necessary to first detect the voltage minimum of input voltage VAC, and control circuit is allowed to send control signal and allows voltage Module 10 is adjusted to adjust to corresponding voltage.The constant-current drive circuit of Fig. 1 C is not suitable for the LED light that input current often changes.

【The content of the invention】

The technical problem to be solved in the present invention is to avoid in place of above-mentioned the deficiencies in the prior art and provide a kind of can adapt to automatically The LED light method for stabilizing voltage of input voltage fluctuation variation, and what is manufactured in the method a kind of can adapt to input voltage ripple automatically The LED light regulator circuit of dynamic variation using the LED light method for stabilizing voltage and uses the LED light regulator circuit, active control is not required Circuit can also adapt to the variation of input power and keep pressure-stabilizing constant flow, eliminate the stroboscopic of LED light, be particularly suitable for various automatically The application of dimming LED lamp has many advantages, such as simple circuit structure, at low cost, power stability and safe and reliable.

The present invention can adapt to input voltage fluctuation variation and be further understood that and can adapt to low-frequency electrical buckling automatically automatically Change and filter out high frequency voltage fluctuation, low frequency and high frequency here are opposite, and high-frequency ratio low frequency is at least order of magnitude greater, high frequency The usually frequency multiplication of alternating current is the imperceptible frequency of human eye, and low frequency is the frequency of LED light light modulation, is that human eye can be discovered.

The present invention solve the technical problem the technical solution adopted is that：

A kind of LED light method for stabilizing voltage that can adapt to input voltage fluctuation variation automatically, based on including triode transistor and LED light group Into circuit, the triode transistor include field-effect tube or triode；The source electrode or three of the LED light and the field-effect tube The emitter electrical connection of pole pipe；Described method includes following steps：

Adaptive Voltage stabilizing module, the adaptive Voltage stabilizing module and the grid of the field-effect tube or the base stage electricity of triode are set Connection, the adaptive Voltage stabilizing module are also electrically connected with input power；

The adaptive Voltage stabilizing module, which has, is charged and discharged two different current channels；

When voltage difference when input power fluctuates causes the adaptive Voltage stabilizing module electric discharge, the adaptive Voltage stabilizing module energy By discharge channel repid discharge, the absolute value of the voltage of at this moment described adaptive Voltage stabilizing module quickly reduces；

Voltage difference when input power fluctuates cause input power to the adaptive Voltage stabilizing module charge when, it is described adaptive Voltage stabilizing module can be charged by charge tunnel, the absolute value rise of the voltage of at this moment described adaptive Voltage stabilizing module.

When input power charges to the adaptive Voltage stabilizing module, when voltage difference is less than the adaptive Voltage stabilizing module During gate value voltage, the adaptive Voltage stabilizing module can slowly be charged by charge tunnel, at this moment described adaptive Voltage stabilizing module it The absolute value of voltage slowly raises；It is described adaptive steady when voltage difference is more than the gate value voltage of the adaptive Voltage stabilizing module Die block can quickly be raised by charge tunnel quick charge, the absolute value of the voltage of at this moment described adaptive Voltage stabilizing module.

The adaptive Voltage stabilizing module includes voltage-stabiliser tube, and the anode of the voltage-stabiliser tube to cathode is the adaptive voltage stabilizing mould The repid discharge passage of block, the breakdown reverse voltage of the voltage-stabiliser tube is the gate value electricity of the adaptive Voltage stabilizing module charge tunnel Pressure.When triode transistor is the field-effect tube of N-channel type, voltage-stabiliser tube both ends are connected electrically in anode and the field-effect of input power Between the grid of pipe, the anode of wherein voltage-stabiliser tube is electrically connected to the grid of the field-effect tube;When triode transistor is P-channel During the field-effect tube of type, voltage-stabiliser tube both ends are connected electrically between the cathode of input power and the grid of field-effect tube, wherein voltage stabilizing The cathode of pipe is electrically connected to the grid of the field-effect tube;When triode transistor is NPN type triode, the base stage of triode By being electrically connected after a resistance with the anode of voltage-stabiliser tube, the cathode of voltage-stabiliser tube is electrically connected to the anode of input power;When three poles When transistor is PNP type triode, the base stage of triode after a resistance with the cathode of voltage-stabiliser tube by being electrically connected, voltage-stabiliser tube Anode be electrically connected to the cathode of input power.

The adaptive Voltage stabilizing module further includes resistance and capacitance, and resistance and voltage-stabiliser tube are in parallel, capacitance and voltage-stabiliser tube series connection The both ends of input power are connected electrically in afterwards, and the place of being connected in series is electrically connected with the grid of the field-effect tube or the base stage of triode It connects.

The voltage-stabiliser tube can use adjustable voltage-stabiliser tube or diode in place.

The adaptive Voltage stabilizing module includes voltage-stabiliser tube and resistance, and the reverse breakdown of cathode to the anode of the voltage-stabiliser tube leads to Road is repid discharge passage, and input power is slowly charged by the resistance to the adaptive Voltage stabilizing module.When three polar crystals When pipe is the field-effect tube of N-channel type, resistance is connected electrically between the anode of input power and the grid of field-effect tube, voltage stabilizing Pipe is connected electrically between the source electrode of field-effect tube and the grid of field-effect tube, and the anode of wherein voltage-stabiliser tube is electrically connected to the field effect Should pipe source electrode;When triode transistor is the field-effect tube of P-channel type, resistance is connected electrically in cathode and the field of input power Between the grid of effect pipe, voltage-stabiliser tube is connected electrically between the source electrode of field-effect tube and the grid of field-effect tube, wherein voltage-stabiliser tube Cathode be electrically connected to the source electrode of the field-effect tube.The adaptive Voltage stabilizing module further includes capacitance;When triode transistor is N During the field-effect tube of channel-type, capacitance is connected electrically between the grid of the field-effect tube and the cathode of input power;When three poles When transistor is the field-effect tube of P-channel type, capacitance be connected electrically in the field-effect tube grid and input power anode it Between.

The present invention can also further be implemented by following technical solution:

A kind of LED light regulator circuit that can adapt to input voltage fluctuation variation automatically, it is described including triode transistor and LED light Triode transistor includes field-effect tube or triode, the LED light and the source electrode of the field-effect tube or the emitter of triode Electrical connection；The LED light regulator circuit that can adapt to input voltage fluctuation variation automatically has further included charging and discharging two not With the adaptive Voltage stabilizing module of current channel, the adaptive Voltage stabilizing module and the grid of the field-effect tube or the base of triode Pole is electrically connected, which is also electrically connected with input power；Voltage difference when input power fluctuates causes described During adaptive Voltage stabilizing module electric discharge, the adaptive Voltage stabilizing module can be at this moment described adaptive by discharge channel repid discharge The absolute value of the voltage of Voltage stabilizing module quickly reduces；Voltage difference when input power fluctuates causes input power to described adaptive When answering the Voltage stabilizing module to charge, the adaptive Voltage stabilizing module can be charged by charge tunnel, at this moment described adaptive Voltage stabilizing module Voltage absolute value rise.

Compared with the existing technology compared with the present invention can adapt to the LED light method for stabilizing voltage and electricity of input voltage fluctuation variation automatically The advantageous effect on road is：

LED light method for stabilizing voltage and circuit of the present invention can adapt to low-frequency voltage variation automatically, filter out high frequency voltage fluctuation, need not lead Dynamic control circuit is suitble to the various dimming LED lamps for connecing alternating current, allow LED light electric current can with the variation of input power phase Should ground variation, and filter out high-frequency fluctuation and keep pressure-stabilizing constant flow, eliminate the stroboscopic of LED light, have that circuit structure is simple, cost Low, power stability and it is safe and reliable the advantages that.

【Description of the drawings】

Figure 1A is the concise circuit diagram of the LED light of no any regulator circuit；

Figure 1B is a kind of concise circuit diagram of constant current driver circuit for LED of the prior art；

Fig. 1 C are the concise circuit diagrams of prior art another kind constant current driver circuit for LED;

Fig. 1 D are the relation coordinate diagram of input voltage and time in Figure 1A, and wherein abscissa represents the time, and unit is millisecond, indulge and sit Mark represents input voltage, and unit is volt；

Fig. 1 E are the relation coordinate diagrams for the electric current and time that LED light is flowed through in Figure 1A, and wherein abscissa represents the time, and unit is milli Second, ordinate represents to flow through the electric current of LED light, and unit is ampere;

Fig. 1 F are the relation coordinate diagrams for the electric current and time that LED light is flowed through in Figure 1B, and wherein abscissa represents the time, and unit is milli Second, ordinate represents to flow through the electric current of LED light, and unit is ampere；

Fig. 2 is that the present invention can adapt to the LED light regulator circuit of the input voltage fluctuation variation concise electric principle side of the first automatically Frame schematic diagram；

Fig. 2 B are the concise electric principle boxes of second of the LED light regulator circuit that can adapt to input voltage fluctuation variation automatically Schematic diagram；

Fig. 3 A are the concise circuit signals of the LED light regulator circuit embodiment one that can adapt to input voltage fluctuation variation automatically Figure;

Fig. 3 B are the concise circuit signals of the LED light regulator circuit embodiment two that can adapt to input voltage fluctuation variation automatically Figure;

Fig. 3 C are the concise circuit signals of the LED light regulator circuit embodiment three that can adapt to input voltage fluctuation variation automatically Figure;

Fig. 3 D are the concise circuit signals of the LED light regulator circuit example IV that can adapt to input voltage fluctuation variation automatically Figure;

Fig. 3 E are the concise circuit signals of the LED light regulator circuit embodiment five that can adapt to input voltage fluctuation variation automatically Figure;

Fig. 3 F are input voltage one embodiment and the relation coordinate diagram of time in Fig. 3 A, and wherein abscissa represents time, unit For millisecond, ordinate represents input voltage, and unit is volt;

Fig. 3 G are the grid voltages of field-effect tube in Fig. 3 A（The burning voltage Vm of namely adaptive Voltage stabilizing module）One implementation Example and the relation coordinate diagram of time, wherein abscissa represent the time, and unit is millisecond, and ordinate represents input voltage, and unit is Volt;

Fig. 3 H are the voltage one embodiment at LED light both ends in Fig. 3 A and the relation coordinate diagram of time, when wherein abscissa represents Between, unit is millisecond, and ordinate represents input voltage, and unit is volt；

Fig. 3 I are another embodiment of input voltage and the relation coordinate diagram of time in Fig. 3 A, and wherein abscissa represents the time, single Position is millisecond, and ordinate represents input voltage, and unit is volt;

Fig. 3 J are the grid voltages of field-effect tube in Fig. 3 B（The burning voltage Vm of namely adaptive Voltage stabilizing module）Another reality Example and the relation coordinate diagram of time are applied, wherein abscissa represents the time, and unit is millisecond, and ordinate represents input voltage, unit For volt;

Fig. 3 K are the grid voltages of field-effect tube in Fig. 3 B（The burning voltage Vm of namely adaptive Voltage stabilizing module）Another reality Example and another relation coordinate diagram of time are applied, wherein abscissa represents the time, and unit is millisecond, and ordinate represents input voltage, Unit is volt；

Fig. 4 A are the concise circuit signals of the LED light regulator circuit embodiment six that can adapt to input voltage fluctuation variation automatically Figure;

Fig. 4 B are the concise circuit signals of the LED light regulator circuit embodiment seven that can adapt to input voltage fluctuation variation automatically Figure;

Fig. 4 C are the concise circuit signals of the LED light regulator circuit embodiment eight that can adapt to input voltage fluctuation variation automatically Figure;

Fig. 4 D are the concise circuit signals of the LED light regulator circuit embodiment nine that can adapt to input voltage fluctuation variation automatically Figure;

Fig. 4 E are the concise circuit signals of the LED light regulator circuit embodiment ten that can adapt to input voltage fluctuation variation automatically Figure；

Fig. 4 F are input voltage one embodiment and the relation coordinate diagram of time in Fig. 4 A, and wherein abscissa represents time, unit For millisecond, ordinate represents input voltage, and unit is volt;

Fig. 4 G are the grid voltages of field-effect tube in Fig. 4 A（The burning voltage Vm of namely adaptive Voltage stabilizing module）One implementation Example and the relation coordinate diagram of time, wherein abscissa represent the time, and unit is millisecond, and ordinate represents input voltage, and unit is Volt;

Fig. 4 H are the voltage one embodiment at LED light both ends in Fig. 4 A and the relation coordinate diagram of time, when wherein abscissa represents Between, unit is millisecond, and ordinate represents input voltage, and unit is volt；

Fig. 5 A are that the concise circuit of the LED light regulator circuit embodiment 11 that can adapt to input voltage fluctuation variation automatically shows It is intended to;

Fig. 5 B are that the concise circuit of the LED light regulator circuit embodiment 12 that can adapt to input voltage fluctuation variation automatically shows It is intended to.

【Specific embodiment】

The present invention is described in further detail with reference to each attached drawing.

Referring to Fig. 2 and Fig. 2 B, it is a kind of can adapt to automatically input voltage fluctuation variation LED light method for stabilizing voltage, based on including The circuit of triode transistor and LED light composition, the triode transistor include field-effect tube or triode；The LED light and institute State the emitter electrical connection of the source electrode or triode of field-effect tube；Described method includes following steps：

Adaptive Voltage stabilizing module 100 is set, the grid or triode of the adaptive Voltage stabilizing module 100 and the field-effect tube it Base stage is electrically connected, which is also electrically connected with input power；

The adaptive Voltage stabilizing module 100, which has, is charged and discharged two different current channels；

When voltage difference when input power fluctuates causes the adaptive Voltage stabilizing module 100 to discharge, the adaptive voltage stabilizing mould Block 100 can be reduced by discharge channel repid discharge, the absolute value of the voltage of at this moment described adaptive Voltage stabilizing module 100；

Voltage difference when input power fluctuates cause input power to the adaptive Voltage stabilizing module 100 charge when, it is described from Adapting to Voltage stabilizing module 100 can be charged by charge tunnel, the absolute value liter of the voltage of at this moment described adaptive Voltage stabilizing module 100 It is high.

Referring to Fig. 2 and Fig. 2 B, when input power charges to the adaptive Voltage stabilizing module 100, when voltage difference is less than institute When stating the gate value voltage of adaptive Voltage stabilizing module 100, the adaptive Voltage stabilizing module 100 can slowly be charged by charge tunnel, At this moment the absolute value of the voltage of described adaptive Voltage stabilizing module 100 slowly raises；It is more than the adaptive voltage stabilizing mould in voltage difference During the gate value voltage of block 100, the adaptive Voltage stabilizing module can pass through charge tunnel quick charge, at this moment described adaptive voltage stabilizing The absolute value of the voltage of module quickly raises.

The present invention can adapt to input voltage fluctuation variation and be further understood that and can adapt to low-frequency electrical buckling automatically automatically Change and filter out high frequency voltage fluctuation, low frequency and high frequency here are opposite, and high-frequency ratio low frequency is at least order of magnitude greater, high Frequency is usually the frequency multiplication of alternating current, is the imperceptible frequency of human eye, and low frequency is the frequency of LED light light modulation, is that human eye can be discovered 's.

Referring to Fig. 2 and Fig. 2 B, the present invention also provides a kind of LED light voltage stabilizings that can adapt to input voltage fluctuation variation automatically Circuit, including triode transistor and LED light, the triode transistor include field-effect tube or triode, the LED light with it is described The emitter electrical connection of the source electrode or triode of field-effect tube；The LED light regulator circuit has further included charging and discharging two The adaptive Voltage stabilizing module 100 of different current channels, the adaptive Voltage stabilizing module 100 and the grid or three of the field-effect tube The base stage electrical connection of pole pipe, the adaptive Voltage stabilizing module 100 are also electrically connected with input power；Voltage when input power fluctuates When difference causes the electric discharge of adaptive Voltage stabilizing module 100, the adaptive Voltage stabilizing module 100 can quickly be put by discharge channel Electricity, the absolute value of the voltage of at this moment described adaptive Voltage stabilizing module 100 quickly reduce；Voltage difference when input power fluctuates is made Into input power to during the adaptive charging of Voltage stabilizing module 100, the adaptive Voltage stabilizing module 100 can be filled by charge tunnel Electricity, the absolute value rise of the voltage of at this moment described adaptive Voltage stabilizing module 100.

Referring to Fig. 3 A and Fig. 4 A, the adaptive Voltage stabilizing module 100 includes voltage-stabiliser tube, the anode of the voltage-stabiliser tube to cathode It is the repid discharge passage of the adaptive Voltage stabilizing module 100, the breakdown reverse voltage of the voltage-stabiliser tube is described adaptive steady The gate value voltage of 100 charge tunnel of die block.

Referring to Fig. 3 B, Fig. 3 D, Fig. 4 B and Fig. 4 D, the adaptive Voltage stabilizing module 100 includes voltage-stabiliser tube, resistance and capacitance, Resistance and voltage-stabiliser tube are in parallel, and the both ends of input power are connected electrically in after capacitance and voltage-stabiliser tube series connection, be connected in series place with it is described The base stage electrical connection of the grid or triode of field-effect tube.

Referring to Fig. 5 A and Fig. 5 B, the adaptive Voltage stabilizing module 100 includes voltage-stabiliser tube and resistance, the cathode of the voltage-stabiliser tube Reverse breakdown passage to anode is repid discharge passage, and input power is by the resistance to the adaptive Voltage stabilizing module 100 slowly charge.

Referring to Fig. 3 C and Fig. 4 C, the voltage-stabiliser tube can be replaced with adjustable voltage-stabiliser tube.

Referring to Fig. 3 E and Fig. 4 E, the voltage-stabiliser tube can use diode in place.

Referring to Fig. 2, triode transistor is N-type triode transistor, including N-channel type field-effect tube or NPN type triode；Institute LED light is stated to be connected electrically between the 3rd pole of N-type triode transistor and the cathode of input power, that is, the LED light is just Pole is electrically connected with the source electrode of N-channel type field-effect tube or the emitter of NPN type triode, and the cathode of the LED light is electrically connected to The cathode of input power；The adaptive Voltage stabilizing module 100 is connected electrically in the 1st pole and the input power of N-type triode transistor Between anode, that is, the adaptive Voltage stabilizing module 100 and the grid of N-channel type field-effect tube or the base of NPN type triode Pole is electrically connected, which is also electrically connected with the anode of input power;2nd pole of N-type triode transistor with it is defeated Enter the anode electrical connection of power supply, it is, the drain electrode of N-channel type field-effect tube or the collector of NPN type triode and input electricity The anode electrical connection in source.

Referring to Fig. 2, using the cathode of input power as 0 volt of reference voltage, the just extremely input voltage VAC of input power, from The burning voltage of Voltage stabilizing module 100 is adapted to as Vm, voltage minimum during input voltage fluctuation is Vmin, N-type triode transistor Cut-in voltage for Von, the voltage when the burning voltage Vm of adaptive Voltage stabilizing module 100 is less than or equal to input voltage fluctuation During the sum of minimum Vmin and cut-in voltage Von of N-type triode transistor, i.e. Vm≤(Vmin+Von) falls the electricity in LED light Pressure is stable, while the electric current for flowing through LED light is also stable.

It is formed referring to Fig. 2, between the adaptive Voltage stabilizing module 100 and input power and is charged and discharged two different electricity Circulation road：

It is described adaptive steady when voltage when input power fluctuates is less than the burning voltage of the adaptive Voltage stabilizing module 100 Die block 100 can be by discharge channel repid discharge, and the burning voltage of at this moment described adaptive Voltage stabilizing module 100 is rapidly with input Voltage during power-supply fluctuation is reduced and reduced；

It is at this moment described adaptive when voltage when input power fluctuates is equal to the burning voltage of the adaptive Voltage stabilizing module 100 The burning voltage for answering Voltage stabilizing module 100 is constant.

It is described adaptive when voltage when input power fluctuates is higher than the burning voltage of the adaptive Voltage stabilizing module 100 Answer Voltage stabilizing module 100 that can charge by charge tunnel, the burning voltage of at this moment described adaptive Voltage stabilizing module 100 is with input power Voltage during fluctuation is raised and raised；Wherein, the voltage Vg being higher by=input voltage VAC- burning voltage Vm, when the voltage being higher by Vg is less than the gate value voltage of setting（The gate value voltage determined by the component and circuit for forming adaptive Voltage stabilizing module 100, Breakdown reverse voltage such as voltage-stabiliser tube D1 in Fig. 3 B is exactly the gate value voltage of the circuit, such as the resistance value of resistance R11, R12 in Fig. 3 C Determine the gate value voltage of the circuit together with the reference voltage of adjustable voltage-stabiliser tube D11）When, adaptive Voltage stabilizing module 100 can pass through Charge tunnel slowly charges, voltage liter when at this moment the burning voltage Vm of adaptive Voltage stabilizing module 100 is fluctuated with input voltage VAC It is high and slowly raise；When the voltage Vg being higher by is more than the gate value voltage of setting, adaptive Voltage stabilizing module 100 can pass through charging Passage charges rapidly, the rise of voltage when at this moment the burning voltage Vm of adaptive Voltage stabilizing module 100 is fluctuated with input power and it is fast The rise of speed.

The burning voltage of the adaptive Voltage stabilizing module 100 can with voltage minimum when input power fluctuates change and Voltage when changing, and keeping the burning voltage Vm of the adaptive Voltage stabilizing module 100 less than or equal to input power fluctuation is most During the sum of low value Vmin and cut-in voltage Von of N-type triode transistor, i.e. Vm≤(Vmin+Von) flows through the electric current of LED light just It can correspondingly change with the variation of input power, and keep stable so that LED light is without stroboscopic.

Referring to Fig. 2 B, triode transistor is p-type triode transistor, including P-channel type field-effect tube or PNP type triode； The LED light is connected electrically between the 3rd pole of p-type triode transistor and the anode of input power, that is, the LED light Cathode is electrically connected with the source electrode of P-channel type field-effect tube or the emitter of PNP type triode, the anode electrical connection of the LED light To the anode of input power；The adaptive Voltage stabilizing module 100 is connected electrically in the 1st pole and the input power of p-type triode transistor Cathode between, that is, the grid or PNP type triode of the adaptive Voltage stabilizing module 100 and P-channel type field-effect tube it Base stage is electrically connected, which is also electrically connected with the cathode of input power;2nd pole of p-type triode transistor with The cathode electrical connection of input power, it is, the drain electrode of P-channel type field-effect tube or the collector of PNP type triode and input The cathode electrical connection of power supply.

Referring to Fig. 2 B, with just extremely 0 volt of the reference voltage of input power, the cathode of input power is input voltage-VAC, The burning voltage of adaptive Voltage stabilizing module 100 is-Vm, and voltage peak when input power fluctuates is-Vmax, and p-type three is extremely brilliant The cut-in voltage of body pipe is-Von, when the burning voltage-Vm of adaptive Voltage stabilizing module 100, which is greater than or equal to input power, to be fluctuated The sum of the cut-in voltage-Von of voltage peak-Vmax and p-type triode transistor when, i.e.-Vm >=[(- Vmax)+（-Von）]； Namely when the burning voltage absolute value of adaptive Voltage stabilizing module 100 |-Vm | voltage when being fluctuated less than or equal to input power Least absolute value |-Vmax | the cut-in voltage absolute value with p-type triode transistor |-Von | the sum of when, that is, work as |-Vm |≤|- Vmax |+|-Von |, it is stable to fall the voltage in LED light, while the electric current for flowing through LED light is also stable.

Formed referring to Fig. 2 B, between the adaptive Voltage stabilizing module 100 and input power be charged and discharged two it is different Current channel：

It is described adaptive when voltage when input power fluctuates is higher than the burning voltage-Vm of the adaptive Voltage stabilizing module 100 Voltage stabilizing module 100 can be by discharge channel repid discharge, and the burning voltage-Vm of at this moment described adaptive Voltage stabilizing module 100 is rapid Voltage when being fluctuated with input power is raised and raised, that is, the burning voltage absolute value of the adaptive Voltage stabilizing module 100 |-Vm | become smaller；

It is at this moment described adaptive when voltage when input power fluctuates is equal to the burning voltage of the adaptive Voltage stabilizing module 100 The burning voltage for answering Voltage stabilizing module 100 is constant.

When voltage when input power fluctuates is less than the burning voltage-Vm of the adaptive Voltage stabilizing module 100, it is described from Adapting to Voltage stabilizing module 100 can be charged by charge tunnel, and the burning voltage-Vm of at this moment described adaptive Voltage stabilizing module 100 is with defeated Voltage when entering power-supply fluctuation is reduced and reduced, that is, the burning voltage absolute value of the adaptive Voltage stabilizing module 100 |-Vm | Become larger；Wherein, it is low go out voltage Ve=burning voltage-input voltage=（-Vm）-（-VAC）, when it is low go out voltage Ve be less than setting Gate value voltage（The gate value voltage determined by the component and circuit for forming adaptive Voltage stabilizing module 100, as steady in Fig. 4 B The breakdown reverse voltage of pressure pipe D2 is exactly the gate value voltage of the circuit, such as the resistance value of resistance R21, R22 and adjustable voltage stabilizing in Fig. 4 C The reference voltage of pipe D21 determines the gate value voltage of the circuit together）When, adaptive Voltage stabilizing module 100 can be delayed by charge tunnel Charging battery, voltage when at this moment burning voltage-the Vm of adaptive Voltage stabilizing module 100 is fluctuated with input power are reduced and slowly dropped It is low, that is, the burning voltage absolute value of the adaptive Voltage stabilizing module 100 |-Vm | slowly become larger；When it is low go out voltage Ve it is big When the gate value of setting, adaptive Voltage stabilizing module 100 can rapidly be charged by charge tunnel, at this moment adaptive Voltage stabilizing module 100 Voltages of burning voltage-Vm when being fluctuated with input power reduce and rapidly reduce, that is, the adaptive Voltage stabilizing module 100 burning voltage absolute value |-Vm | become larger rapidly.

Burning voltage-the Vm of the adaptive Voltage stabilizing module 100 can with voltage peak when input power fluctuates- Vmax changes and changes, and the burning voltage-Vm of the adaptive Voltage stabilizing module 100 is kept to be fluctuated more than or equal to input power When the sum of the cut-in voltage-Von of voltage peak-Vmax and p-type triode transistor when, i.e.-Vm >=[(- Vmax)+（- Von）], that is, the burning voltage absolute value when adaptive Voltage stabilizing module 100 |-Vm | when being fluctuated less than or equal to input power Voltage least absolute value |-Vmax | the cut-in voltage absolute value with p-type triode transistor |-Von | the sum of when, that is, work as |-Vm | ≤ |-Vmax |+|-Von |, flow through the electric current of LED light just can correspondingly change with the variation of input power, and keep steady It is fixed so that LED light is without stroboscopic.

After LED light in the present invention can be single led or multiple LED series connection or multiple LED series connection It is in parallel again.The LED light for only depicting a LED in the various figures is used as signal.

Embodiment one, referring to Fig. 3 A, which is the practical application physical circuit of Fig. 2, and the present invention can adapt to automatically The LED light regulator circuit of input voltage fluctuation variation, field-effect tube QN, LED light and voltage-stabiliser tube D1 including N-channel type, wherein Triode transistor is the field-effect tube QN of N-channel type, and adaptive Voltage stabilizing module 100 is voltage-stabiliser tube D1；The anode of the LED light with The source S electrical connection of the field-effect tube QN, the drain D of field-effect tube QN are electrically connected with the anode of input power, the LED light Cathode be electrically connected to the cathode of input power；Voltage-stabiliser tube D1 both ends are connected electrically in the anode of input power and field-effect tube QN Between grid G, the anode of wherein voltage-stabiliser tube D1 is electrically connected to the grid G of the field-effect tube QN.

Referring to Fig. 3 A, using the cathode of input power as 0 volt of reference voltage, the just extremely input voltage VAC of input power, from The burning voltage for adapting to Voltage stabilizing module 100 is Vm（That is the anode voltage of voltage-stabiliser tube D1）, input power fluctuate when voltage it is minimum It is worth for Vmin, the cut-in voltage of field-effect tube QN is Von.Assuming that the voltage VAC peaks Vmax of input power is 110 volts, electricity It is 100 volts to press minimum Vmin, and waveform is as illustrated in Figure 3 F；The voltage stabilizing value of voltage-stabiliser tube D1 is more than voltage when input power fluctuates The difference of peak and voltage minimum, i.e., more than 10 volts, the voltage stabilizing value for taking voltage-stabiliser tube D1 is 12V；Voltage-stabiliser tube D1 anodes are to voltage stabilizing Pipe the forward current direction of D1 cathodes is exactly the repid discharge passage of Fig. 2, the breakdown reverse voltage 12V of voltage-stabiliser tube D1 is exactly gate value Voltage, for the voltage Vg that Fig. 3 A are higher by when less than gate value voltage, slow charging rate is close to zero；Its detailed operation is such as Lower description：

Referring to Fig. 3 A, when the grid G voltage of field-effect tube QN is 101 volts, the cathode voltage of voltage-stabiliser tube D1 is with input voltage VAC It fluctuates and fluctuates, the cathode voltage of voltage-stabiliser tube D1 and the maximum difference of anode voltage subtract 101 volts for 110 volts and be equal to 9 volts, are less than 12 volts of the breakdown reverse voltage of voltage-stabiliser tube D1, voltage-stabiliser tube D1 shows as opening a way, at this time the voltage of the grid G of field-effect tube QN（ It is exactly the burning voltage Vm of adaptive Voltage stabilizing module 100）Remain 101 volts it is constant, as shown in Figure 3 G；LED light both ends at this time Voltage also remains unchanged, and subtracts the cut-in voltage Von of field-effect tube QN for the grid G voltage of field-effect tube QN, it is assumed here that field The cut-in voltage Von of effect pipe QN be 2 volts, then the voltage at LED light both ends remain 99 volts it is constant, as shown in figure 3h.

Referring to Fig. 3 A, when the input power is increased, voltage value during input voltage fluctuation rises overally, such as input voltage liter For the fluctuation voltage between 110 volts to 120 volts；When the cathode voltage of voltage-stabiliser tube D1 and the difference of anode voltage are more than 12 volts, voltage stabilizing The voltage rising of pipe D1 reverse breakdowns, the at this time grid G of field-effect tube QN rises to 120 volts of the cathode maximum voltage of voltage-stabiliser tube D1 When subtracting 12 volts of breakdown reverse voltage, at this time the voltage of the grid G of field-effect tube QN be maintained at 108 volts stablize it is constant, from defeated Enter the influence of voltage fluctuation, the electric current for flowing through LED light is stablized constant, and LED light does not have stroboscopic phenomenon.

Referring to Fig. 3 A, when input power reduces, voltage value entire lowering during input voltage fluctuation, as input voltage drops For the fluctuation voltage between 90 volts to 100 volts；When the anode voltage of voltage-stabiliser tube D1 is higher than cathode voltage, the positive guides of voltage-stabiliser tube D1 It is logical, it is assumed that the forward voltage drop of voltage-stabiliser tube D1 is 1 volt, cannot be again when the voltage of the grid G of field-effect tube QN falls to 91 volts Decline, can not rise, hence into a new voltage stabilizing state.

View of the above, it will be seen that the LED light regulator circuit of Fig. 3 A can allow change of the LED light electric current with input power Change and correspondingly change, and when input power is stablized, the electric current of LED light enters stable constant current state.

In the LED light regulator circuit of Fig. 3 A, in order to effectively remove stroboscopic, the voltage stabilizing value of general voltage-stabiliser tube D1 can be than most The difference of voltage peak and voltage minimum when input power fluctuates during big input power will greatly, and such as maximal input when is defeated The difference of voltage peak and voltage minimum when entering power-supply fluctuation is 10 volts, and the breakdown reverse voltage of voltage-stabiliser tube D1 takes 20 volts. When LED light regulator circuit starts, the input power of Fig. 3 A is always changed from small to big, and voltage value when input power fluctuates is whole It is to change from small to big, finally enters a stable fluctuation range.Assuming that when stabilized input voltage fluctuates between 111 volts to 121 volts, 121 volts of the voltage peak that the voltage of the grid G of field-effect tube QN then stablizes when input voltage VAC is fluctuated subtracts voltage-stabiliser tube D1 20 volts of breakdown reverse voltage, equal to 101 volts, as shown in fig. 31；At this moment the voltage minimum 111 when input voltage VAC is fluctuated 10 volts of the difference of 101 volts of the grid G burning voltage of volt and field-effect tube QN is that complete loss slatterns.Voltage-stabiliser tube D1's reversely hits It is bigger to wear voltage, then electric energy loss caused by voltage stabilizing eliminates stroboscopic is bigger.But if the breakdown reverse voltage of voltage-stabiliser tube D1 is less than The difference of voltage peak and voltage minimum when input voltage VAC is fluctuated, then cannot effectively eliminate stroboscopic.

Embodiment two, referring to Fig. 3 B, the present embodiment two and embodiment one are essentially identical, are a difference in that adaptive voltage stabilizing mould Block 100 further includes resistance R1 and capacitance C1, that is, adaptive Voltage stabilizing module 100 is voltage-stabiliser tube D1, resistance R1 and capacitance C1;Electricity Resistance R1 is connected electrically between the anode of input power and the grid G of field-effect tube QN, it may also be said to which resistance R1 is connected in parallel on voltage-stabiliser tube D1 both ends, capacitance C1 are connected electrically between the grid G of the field-effect tube QN and the cathode of input power.The present embodiment two LED light regulator circuit can effectively reduce voltage-stabiliser tube D1 breakdown reverse voltage it is excessively high and caused by unnecessary loss, electric current by When input power anode is less than the gate value voltage of setting by the resistance R1 voltage Vg being higher by into capacitance C1 chargings exactly Fig. 2 Slow charge tunnel；Its detailed operation is described below：

Referring to Fig. 3 B, when the voltage peak when input power fluctuates quickly is raised to 121 volts, the grid G of field-effect tube QN Voltage is also quickly raised to 101 volts（Assuming that the breakdown reverse voltage of voltage-stabiliser tube D1 is 20 volts）, at this moment, voltage-stabiliser tube D1 cut-offs, electricity Stream is no longer flowed to the grid G of field-effect tube QN by voltage-stabiliser tube D1, but at this moment electric current can flow to field-effect tube QN by resistance R1 Grid G；The size of resistance R1 and capacitance C1 are set, can be when voltage-stabiliser tube D1 to end, the grid G for allowing field-effect tube QN is electric Pressure slowly rises, and as shown in figure 3j, in a cycle strobe, the grid G voltage of field-effect tube QN only rises about 0.1 volt, multiple Voltage rises to 112 volts after cycle（Each cycle strobe time is the same, in order to easily represent, among t3 to t130 Cycle strobe has compressed）；When the voltage of the grid G of field-effect tube QN reaches voltage minimum when input voltage VAC is fluctuated Vmin（111 volts）With the forward voltage drop of voltage-stabiliser tube D1（1 volt）The sum of when, a dynamic balance is maintained for, as shown in Fig. 3 K； One cycle strobe, the rising of voltage when being fluctuated with input power, electric current are flowed to the grid G of field-effect tube QN by resistance R1, The grid G voltage of field-effect tube QN is allowed slowly to rise；When voltage is begun to decline when input power fluctuates, the grid of field-effect tube QN The rate of climb of pole G voltages is with regard to slack-off；Voltage drops below the grid G electricity of field-effect tube QN when input voltage VAC is fluctuated During the difference of pressure and the forward voltage drop of voltage-stabiliser tube D1, voltage-stabiliser tube D1 forward conductions, the grid G voltage of field-effect tube QN rapidly drops to 112 volts.So in each voltage wave cycle, the grid G voltage of field-effect tube QN ceaselessly raising and lowering reaches dynamic Balance；The grid G scope range of the fluctuation of voltage of field-effect tube QN is related with the capacity of the resistance value of resistance R1 and capacitance C1 at this time, resistance R1 Resistance value it is bigger, the capacity of capacitance C1 is bigger, then the scope range of the fluctuation of voltage of the grid G of field-effect tube QN is with regard to smaller.Work as field-effect During the scope range of the fluctuation of voltage very little of the grid G of pipe QN, the fluctuation range of LED light electric current also very little, it is constant current that can be approximately considered.

Embodiment three, referring to Fig. 3 C, the present embodiment three and embodiment two are essentially identical, are a difference in that with adjustable voltage stabilizing Pipe D11 is instead of voltage-stabiliser tube D1, and with two resistance R11 and resistance R12 instead of resistance R1, that is, adaptive Voltage stabilizing module 100 include adjustable voltage-stabiliser tube D11, resistance R11, resistance R12 and capacitance C1；Adjustable voltage-stabiliser tube D11 both ends are connected electrically in input electricity Between the anode in source and the grid G of field-effect tube QN, wherein the anode of adjustable voltage-stabiliser tube D11 is electrically connected to the field-effect tube QN Grid G, resistance R11 and resistance R12 series connection after be connected in parallel on adjustable voltage-stabiliser tube D11 both ends, the detection voltage of adjustable voltage-stabiliser tube D11 End is connected electrically at the electrical connection of resistance R11 and resistance R12, and capacitance C1 is connected electrically in the grid G of the field-effect tube QN and defeated Between the cathode for entering power supply.The model TL431 of adjustable voltage-stabiliser tube D11.Resistance R11 and resistance the R12 series connection of the present embodiment three The burning voltage of adjustable voltage-stabiliser tube D11 can be not only set, moreover it is possible to play the role of resistance R1 in Fig. 3 B.

Example IV, referring to Fig. 3 D, the present embodiment four and embodiment two are essentially identical, are a difference in that triode T1 takes Generation field-effect tube QN, since triode is current lead-through, so in one resistance R13 of base series of triode T1, i.e., For the base stage of triode T1 by being electrically connected after resistance R13 with the anode of voltage-stabiliser tube D1, the base stage of triode T1 also passes through resistance R13 It is electrically connected respectively with capacitance C1 and resistance R1, the anode of LED light is electrically connected with the emitter of the triode T1, triode T1's Collector is electrically connected with the anode of input power.Triode T1 in the present embodiment four is NPN type triode.

Embodiment five, referring to Fig. 3 E, the present embodiment five and embodiment two are essentially identical, are a difference in that and use diode D12 is instead of voltage-stabiliser tube D1；The current channel of diode D12 anodes to cathode is the repid discharge passage of Fig. 2, charge tunnel It is by the charge tunnel of resistance R1, the gate value voltage of actually its charge tunnel can regard infinitely great as, therefore actually It is not have quick charge passage, only passes through the slow charge tunnel of resistance R1.

Embodiment six, referring to Fig. 4 A, the present embodiment six is the practical application physical circuit of Fig. 2 B, and the present invention can adapt to automatically The LED light regulator circuit of input voltage fluctuation variation, field-effect tube QP, LED light and voltage-stabiliser tube D2 including P-channel type, wherein Triode transistor is the field-effect tube QP of P-channel type, and adaptive Voltage stabilizing module 100 is voltage-stabiliser tube D2；The cathode of the LED light with The source S electrical connection of the field-effect tube QP, the drain D of field-effect tube QP are electrically connected with the cathode of input power, the LED light Anode be electrically connected to the anode of input power；Voltage-stabiliser tube D2 both ends are connected electrically in the cathode of input power and field-effect tube QP Between grid G, the cathode of wherein voltage-stabiliser tube D2 is electrically connected to the grid G of the field-effect tube QP.The present embodiment six and embodiment The one field-effect tube QN being a difference in that with the field-effect tube QP of P-channel type instead of N-channel type, therefore physical circuit is slightly Difference, and in order to represent to distinguish, the number of electronic component is different, but principle communicates, and operation principle can complex chart The embodiment one of 2B and Fig. 3 A, the current channel of voltage-stabiliser tube D2 anodes to voltage-stabiliser tube D2 cathodes is the repid discharge passage of Fig. 2 B, Its slow charging rate is close to zero, and operating voltage figure is as shown in Fig. 4 F, 4G and 4H, and in this not go into detail.

Embodiment seven, referring to Fig. 4 B, the present embodiment seven and embodiment six are essentially identical, are a difference in that adaptive voltage stabilizing mould Block 100 further includes resistance R2 and capacitance C2, that is, adaptive Voltage stabilizing module 100 is voltage-stabiliser tube D2, resistance R2 and capacitance C2;Electricity Resistance R2 is connected electrically between the cathode of input power and the grid G of field-effect tube QP, it may also be said to which resistance R2 is connected in parallel on voltage-stabiliser tube D2 both ends, capacitance C2 are connected electrically between the grid G of the field-effect tube QP and the anode of input power.The embodiment seven and figure The embodiment two of 3B is similar, only with the field-effect tube QP of P-channel type instead of the field-effect tube QN of N-channel type, therefore Physical circuit is slightly different, and in order to represent to distinguish, the number of electronic component is different.

Embodiment eight, referring to Fig. 4 C, the present embodiment eight and embodiment seven are essentially identical, are a difference in that with adjustable voltage stabilizing Pipe D21 is instead of voltage-stabiliser tube D2, and with two resistance R21 and resistance R22 instead of resistance R2, that is, adaptive Voltage stabilizing module 100 include adjustable voltage-stabiliser tube D21, resistance R21, resistance R22 and capacitance C2；Adjustable voltage-stabiliser tube D21 both ends are connected electrically in input electricity Between the cathode in source and the grid G of field-effect tube QP, wherein the cathode of adjustable voltage-stabiliser tube D21 is electrically connected to the field-effect tube QP Grid G, resistance R21 and resistance R22 series connection after be connected in parallel on adjustable voltage-stabiliser tube D21 both ends, the detection voltage of adjustable voltage-stabiliser tube D21 End is connected electrically at the electrical connection of resistance R21 and resistance R22, and capacitance C2 is electrically connected grid G and the input of the field-effect tube QP Between the anode of power supply.The model TL431 of adjustable voltage-stabiliser tube D21.Resistance R21 and resistance the R22 series connection of the present embodiment eight are not But the burning voltage of adjustable voltage-stabiliser tube D21 can be set, moreover it is possible to play the role of resistance R2 in Fig. 4 B.The embodiment eight and Fig. 3 C Embodiment three it is similar, only with the field-effect tube QP of P-channel type instead of the field-effect tube QN of N-channel type, therefore have Body circuit is slightly different, and in order to represent to distinguish, the number of electronic component is different.

Embodiment nine, referring to Fig. 4 D, the present embodiment nine and embodiment seven are essentially identical, are a difference in that triode T2 takes Generation field-effect tube QP, since triode is current lead-through, so in one resistance R23 of base series of triode T2, i.e., For the base stage of triode T2 by being electrically connected after resistance R23 with the cathode of voltage-stabiliser tube D2, the base stage of triode T2 also passes through resistance R23 It is electrically connected respectively with capacitance C2 and resistance R2, the cathode of LED light is electrically connected with the emitter of the triode T2, triode T2's Collector is electrically connected with the cathode of input power.Triode T2 in the present embodiment nine is PNP type triode.The embodiment nine with The example IV of Fig. 3 D is similar, and only with PNP type triode instead of NPN type triode, therefore physical circuit is slightly not Together, and in order to represent to distinguish, the number of electronic component is different.

Embodiment ten, referring to Fig. 4 E, the present embodiment ten and embodiment seven are essentially identical, are a difference in that and use diode D22 is instead of voltage-stabiliser tube D2；The embodiment ten is similar with the embodiment five of Fig. 3 E, only with the field-effect tube of P-channel type QP is instead of the field-effect tube QN of N-channel type, therefore physical circuit is slightly different, and in order to represent to distinguish, the volume of electronic component It is number different.

Embodiment 11, referring to Fig. 5 A, the present embodiment 11 is similar with the embodiment two of Fig. 3 B, is a difference in that voltage-stabiliser tube Connection mode it is different, in order to represent the difference with the embodiment of Fig. 3 B two, using the number of different electronic component； The adaptive Voltage stabilizing module 100 for being exactly the present embodiment 11 is voltage-stabiliser tube D3, resistance R3 and capacitance C3, and resistance R3 is connected electrically in defeated Enter between the anode of power supply and the grid G of field-effect tube QN, capacitance C3 is connected electrically in grid G and the input of the field-effect tube QN Between the cathode of power supply, and voltage-stabiliser tube D3 is then connected electrically between the source S of field-effect tube QN and the grid G of field-effect tube QN, The anode of wherein voltage-stabiliser tube D3 is electrically connected to the source S of the field-effect tube QN.

Referring to Fig. 5 A, the present embodiment 11 takes the breakdown reverse voltage of voltage-stabiliser tube D3 than the field-effect tube QN's of N-channel type Cut-in voltage is more greatly（Cut-in voltage such as field-effect tube QN is 2 volts, and the breakdown reverse voltage for taking voltage-stabiliser tube D3 is 2.2 volts）； The current channel of the cathode of voltage-stabiliser tube D3 to the anode of voltage-stabiliser tube D3 is the repid discharge passage of Fig. 2；In this way, work as input voltage During the voltage of grid Gs of the voltage minimum Vmin less than field-effect tube QN when VAC is fluctuated, the electricity of the grid G of field-effect tube QN The difference in voltage of pressure and the source S of field-effect tube QN is more than the breakdown reverse voltage of voltage-stabiliser tube D3, voltage-stabiliser tube D3 reverse breakdowns, field The voltage of the grid G of effect pipe QN declines, and the burning voltage Vm of the adaptive Voltage stabilizing module 100 is kept to be less than or equal to input electricity The sum of voltage minimum Vmin and cut-in voltage Von of N-type triode transistor during pressure fluctuation, i.e. Vm≤(Vmin+Von)；When When voltage when input voltage VAC is fluctuated rises, the voltage of the grid G of field-effect tube QN is slowly risen by resistance R3, in this way, The circuit can allow the electric current for flowing through LED light with the variation of input power respective change, and when input power is stablized, LED light enters stable constant current state.Here, the reverse breakdown passage of voltage-stabiliser tube D3 is the repid discharge passage of Fig. 2, is charged logical Road is by the charge tunnel of resistance R3, and the gate value voltage of actually its charge tunnel can regard infinitely great as, therefore actual On be there is no quick charge passage, only pass through the slow charge tunnel of resistance R3.

Embodiment 12, referring to Fig. 5 B, the present embodiment 12 is similar with the embodiment seven of Fig. 4 B, is a difference in that voltage-stabiliser tube Connection mode it is different, in order to represent the difference with the embodiment of Fig. 4 B seven, using the number of different electronic component； The adaptive Voltage stabilizing module 100 for being exactly the present embodiment 12 is voltage-stabiliser tube D4, resistance R4 and capacitance C4, and resistance R4 is connected electrically in defeated Enter between the cathode of power supply and the grid G of field-effect tube QP, capacitance C4 is connected electrically in grid G and the input of the field-effect tube QP Between the anode of power supply, and voltage-stabiliser tube D4 is then connected electrically between the source S of field-effect tube QP and the grid G of field-effect tube QP, The cathode of wherein voltage-stabiliser tube D4 is electrically connected to the source S of the field-effect tube QN.The embodiment 12 and the embodiment ten of Fig. 5 A One is similar, and only with the field-effect tube QP of P-channel type instead of the field-effect tube QN of N-channel type, therefore physical circuit is slightly It is different, but its principle is the same, and in order to represent to distinguish, the number of electronic component is different.

Field-effect tube in the above embodiments can be replaced with triode, and triode can also use field-effect tube generation It replaces, details are not described herein.

The present invention proposes another mentality of designing, without PWM light modulation or controllable silicon light modulation come control field-effect tube or The ON time of triode and deadline, it is not required that the grid of field-effect tube or three poles are adjusted by voltage regulator module The voltage of the base stage of pipe and then come the voltage that adjusts the emitter of the source electrode of field-effect tube or triode, but pass through and set one Adaptive Voltage stabilizing module can just adapt to low-frequency voltage variation automatically, filter out high frequency voltage fluctuation, active control circuit is not required, It is suitble to the various dimming LED lamps for connecing alternating current, the electric current of LED light can correspondingly be changed with the variation of input power, and And filter out high-frequency fluctuation and keep pressure-stabilizing constant flow, eliminate the stroboscopic of LED light, have simple circuit structure, at low cost, power stability and The advantages that safe and reliable.

Embodiment described above only expresses the preferred embodiment of the present invention, and description is more specific and detailed, but simultaneously Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as;It should be appreciated that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect scope;Therefore, all equivalents done with scope of the invention as claimed and modification, should all belong to the claims in the present invention Covering scope.

Claims (10)

1. a kind of LED light method for stabilizing voltage that can adapt to input voltage fluctuation variation automatically, based on including triode transistor and LED light The circuit of composition, the triode transistor include field-effect tube or triode；The source electrode of the LED light and the field-effect tube or The emitter electrical connection of triode；Described method includes following steps：

Adaptive Voltage stabilizing module is set（100）, the adaptive Voltage stabilizing module（100）Grid or three poles with the field-effect tube The base stage electrical connection of pipe, the adaptive Voltage stabilizing module（100）Also it is electrically connected with input power；

The adaptive Voltage stabilizing module（100）Have and be charged and discharged two different current channels；

Voltage difference when input power fluctuates causes the adaptive Voltage stabilizing module（100）During electric discharge, the adaptive voltage stabilizing Module（100）Discharge channel repid discharge, at this moment described adaptive Voltage stabilizing module can be passed through（100）Voltage absolute value it is quick It reduces；

Voltage difference when input power fluctuates causes input power to the adaptive Voltage stabilizing module（100）It is described during charging Adaptive Voltage stabilizing module（100）It can be charged by charge tunnel, at this moment described adaptive Voltage stabilizing module（100）Voltage it is absolute Value rise.

2. the LED light method for stabilizing voltage according to claim 1 that can adapt to input voltage fluctuation variation automatically, feature exist In：

In input power to the adaptive Voltage stabilizing module（100）During charging, when voltage difference is less than the adaptive Voltage stabilizing module （100）Gate value voltage when, the adaptive Voltage stabilizing module（100）It can slowly be charged by charge tunnel, it is at this moment described adaptive Answer Voltage stabilizing module（100）The absolute value of voltage slowly raise；It is more than the adaptive Voltage stabilizing module in voltage difference（100）Door During threshold voltage, the adaptive Voltage stabilizing module can pass through charge tunnel quick charge, the electricity of at this moment described adaptive Voltage stabilizing module The absolute value of pressure quickly raises.

3. the LED light method for stabilizing voltage according to claim 1 that can adapt to input voltage fluctuation variation automatically, feature exist In：

The adaptive Voltage stabilizing module（100）Including voltage-stabiliser tube, the anode of the voltage-stabiliser tube to cathode is the adaptive voltage stabilizing Module（100）Repid discharge passage, the breakdown reverse voltage of the voltage-stabiliser tube is the adaptive Voltage stabilizing module（100）It charges The gate value voltage of passage.

4. the LED light method for stabilizing voltage according to claim 3 that can adapt to input voltage fluctuation variation automatically, feature exist In：

The adaptive Voltage stabilizing module（100）Resistance and capacitance are further included, resistance and voltage-stabiliser tube are in parallel, capacitance and voltage-stabiliser tube series connection The both ends of input power are connected electrically in afterwards, and the place of being connected in series is electrically connected with the grid of the field-effect tube or the base stage of triode It connects.

5. the LED light method for stabilizing voltage according to claim 4 that can adapt to input voltage fluctuation variation automatically, feature exist In：

The voltage-stabiliser tube can use adjustable voltage-stabiliser tube or diode in place.

6. the LED light method for stabilizing voltage according to claim 1 that can adapt to input voltage fluctuation variation automatically, feature exist In：

The adaptive Voltage stabilizing module（100）Including voltage-stabiliser tube and resistance, the reverse breakdown of the cathode of the voltage-stabiliser tube to anode Passage is repid discharge passage, and input power is by the resistance to the adaptive Voltage stabilizing module（100）Slowly charge.

7. a kind of LED light regulator circuit that can adapt to input voltage fluctuation variation automatically, including triode transistor and LED light, institute Stating triode transistor includes field-effect tube or triode, the LED light and the transmitting of the source electrode or triode of the field-effect tube Pole is electrically connected；It is characterized in that：

Further include the adaptive Voltage stabilizing module for being charged and discharged two different current channels（100）, the adaptive voltage stabilizing mould Block（100）It is electrically connected with the grid of the field-effect tube or the base stage of triode, the adaptive Voltage stabilizing module（100）Also with input Power electric connection；Voltage difference when input power fluctuates causes the adaptive Voltage stabilizing module（100）It is described adaptive during electric discharge Answer Voltage stabilizing module（100）Discharge channel repid discharge, at this moment described adaptive Voltage stabilizing module can be passed through（100）Voltage it is absolute Value is quick to be reduced；Voltage difference when input power fluctuates causes input power to the adaptive Voltage stabilizing module（100）It charges When, the adaptive Voltage stabilizing module（100）It can be charged by charge tunnel, at this moment described adaptive Voltage stabilizing module（100）Electricity The absolute value rise of pressure.

8. the LED light regulator circuit according to claim 7 that can adapt to input voltage fluctuation variation automatically, feature exist In：

The adaptive Voltage stabilizing module（100）Including voltage-stabiliser tube, the anode of the voltage-stabiliser tube to cathode is the adaptive voltage stabilizing Module（100）Repid discharge passage, the breakdown reverse voltage of the voltage-stabiliser tube is the adaptive Voltage stabilizing module（100）It charges The gate value voltage of passage.

9. the LED light regulator circuit according to claim 8 that can adapt to input voltage fluctuation variation automatically, feature exist In：

The adaptive Voltage stabilizing module（100）Resistance and capacitance are further included, resistance and voltage-stabiliser tube are in parallel, capacitance and voltage-stabiliser tube series connection The both ends of input power are connected electrically in afterwards, and the place of being connected in series is electrically connected with the grid of the field-effect tube or the base stage of triode It connects.

10. the LED light regulator circuit according to claim 9 that can adapt to input voltage fluctuation variation automatically, feature exist In：

The voltage-stabiliser tube can use adjustable voltage-stabiliser tube or diode in place.