CN207070400U - A kind of Width funtion LED lamp drive circuit with emergency function - Google Patents

Abstract

The utility model provides a kind of Width funtion LED lamp drive circuit with emergency function, belongs to drive circuit technical field.It solves the problems, such as that the prior art LED lamp drive circuit scope of application is low and after civil power power-off LED can not be made to carry out emergency lighting.A kind of Width funtion LED lamp drive circuit with emergency function, including the rectification module for connecting civil power, two groups of LED lamp modules, emergency service module, emergency service module includes being used for the battery for connecting civil power, emergency service module connects two groups of LED lamp modules, the battery of emergency service module can be powered when civil power powers off to two groups of LED lamp modules, this drive circuit also includes detection module and control module, rectification module output end distinguishes connection detection module and control module, detection module and two groups of LED lamp module difference link control modules, the voltage setting value of two groups of LED series connection of switching is provided with control module.The utility model realize emergency driving LED and make LED be applicable line voltage scope it is wide.

Description

A kind of Width funtion LED lamp drive circuit with emergency function

Technical field

The utility model belongs to drive circuit technical field, is related to a kind of Width funtion LED driving with emergency function Circuit.

Background technology

LED is the English abbreviation of light emitting diode, is a kind of semiconductor subassembly.It is more at the beginning luminous as indicator lamp, display Diode panel etc., with the appearance of white light LEDs, LED uses frequently as illumination.LED is referred to as forth generation lighting source and green Color light source, there is energy-saving and environmental protection, long lifespan, small volume.LED is because it has These characteristics, so as in the world Enjoy the favor of user.

Because LED operating voltage is commonly DC voltage, therefore need to set drive circuit in LED by the electricity of civil power Pressure is converted to DC voltage, then obtain after partial pressure the operating voltage of LED and lighted for LED.Due to many states in the world Family and the line voltage disunity in many areas, such as Chinese civil power is 220V, and Japan is 110V therefore identical LED drivings Circuit can not be general in the country of different civil powers, can only change drive circuit or user buys a transformer being adapted and turned Connect, be so all inconvenient for manufacturer and user.

Application No. CN201410190812.7 one kind is disclosed for this Chinese patent literature to be operated under full voltage High-voltage LED driving circuit, the circuit includes at least LED unit, each group comprising multiple high-voltage LEDs and multiple switch pipe and One group of additional LED module；For based on supply voltage come export string and control signal line voltage detection unit, for based on The string and control signal come control the string of each group LED unit and connect string and switch control unit, for by the electricity of access Source is converted to the rectification output unit of voltage needed for LED unit, for being controlled often based on the output voltage of rectifying output circuit The opening and closing of each switching tube in one group of LED unit and the driver element of the electric current of each high-voltage LED, thus can realize the low electricity of 120V Pressure and 277V high voltages can drive LED.

Although above-mentioned patent can realize the LED driving of 120V low-voltages and 277V high voltage civil powers, model is applicable Enclose still smaller, can not meet in office where area's LED is inserted into after civil power just can illuminate the effect used, while above-mentioned patent After civil power power-off LED can not be made to carry out emergency lighting, practicality is low.

The content of the invention

There is above mentioned problem in the utility model, it is proposed that a kind of Width funtion with emergency function for existing technology LED lamp drive circuit, technical problem to be solved in the utility model are how to realize emergency driving LED and fit LED It is wide with the scope of line voltage.

The utility model is realized by following technical proposal：A kind of Width funtion LED driving electricity with emergency function Road, including for connecting the rectification module and two groups of LED lamp modules of civil power, it is characterised in that this drive circuit also includes emergent Power supply module, the emergency service module include being used for the battery for connecting civil power, and the emergency service module connects two groups of LED Lamp module, the battery of emergency service module can be powered when civil power powers off to two groups of LED lamp modules, and this drive circuit is also Including for detecting the voltage for judging to input in low voltage range still in the detection module of high voltage range and for switching two Group LED lamp module serial or parallel connection simultaneously controls two groups of LED lamp modules to press the control module that rated power works, the rectification module Output end distinguishes connection detection module and control module, the detection module and two groups of LED lamp module difference link control modules, The voltage setting value of two groups of LED series connection of switching is provided with the control module.

This drive circuit emergency service module when civil power powers off makes battery turn on two groups of LED lamp modules to be supplied Electricity, when civil power is powered, emergency service module makes battery electrically connect with city to be charged.And this drive circuit passes through setting Detection module can export different voltage signals according to different input voltage ranges can to control module, control module Control two groups of LED serial or parallel connections and maximized to meet utilizing for present input voltage, while can guarantee that two groups of LEDs by volume Determine power to be operated, so as to which this drive circuit can adapt to wider line voltage scope, by setting this drive circuit LED Lamp product can just being capable of plug and play in most countries.Civil power carries out rectification by rectification module, and detection is sent to after rectification Module and control module, when rectification module output is in low voltage range, detection module exports the voltage to control module Signal is less than voltage setting value, and now control module makes two groups of LED lamp modules in parallel, so that low-voltage can also make to input to The voltage of LED works enough, and in high voltage range, detection module exports the voltage signal more than voltage setting value to control Module, control module control two groups of LED lamp module series connection, because enough LED lamp module series connection make for now high voltage input With.After completion is in series or in parallel, control module also adjusts the power of LED lamp module, LED lamp module is operated in specified work( In rate.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, the emergency service module also includes control Device and relay processed, the controller have voltage detecting end, and the voltage detecting end is used to connect the live wire in civil power, described The output end of the coil connection controller of relay, the both ends of the normal open switch of the relay connect battery and two groups respectively LED lamp module.Charged in the case where civil power has electricity to battery, and have voltage detecting of the control source to controller End, now relay holding battery and two groups of LED lamp modules disconnections, in the case where civil power powers off, give without control source The voltage detecting end of controller, now controller control relay make battery and two groups of LED lamp module paths, carry out emergent photograph It is bright.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, the current input terminal of one group of LED lamp module Connect one end of the normal open switch of relay, the other end connection battery of relay normally open switch, the electricity of this group of LED lamp module Flow the current input terminal that output end connects another group of LED lamp module.When relay normally open is switched and closed, two groups of LED lamp modules Connected with battery, battery is powered to two groups of LED lamp modules.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, the detection module includes triode Q1 With triode Q2, the control module output reference voltage is to triode Q1 and triode Q2, rectification module output detection voltage To triode Q1 and triode Q2, in low voltage range, triode Q1 and triode Q2 is turned off that two groups of LED lamp modules can be made It is in parallel；In high voltage range, triode Q1 and triode Q2, which is opened, can make two groups of LED lamp module series connection, the detection module Also include the resistance R1 for partial pressure, resistance R2, resistance R3, resistance R4, resistance R5 and the resistance at least with a resistance Unit one, the output end of one end connection rectification module of resistance unit one, the colelctor electrode link control module of the triode Q1 And led to by the other end of resistance R1 connections resistance unit one, triode Q1 emitter stage link control modules, triode Q1 base stages Resistance R2 link control modules are crossed, the colelctor electrode of the triode Q2 passes through resistance R3 connecting triodes Q1 base stage, triode Q2 emitter stage passes through resistance R4 link control modules, the other end of triode Q2 base stage connection resistance unit one, triode Q2 base stage is also connected with resistance R5 one end, resistance R5 other end ground connection, and triode Q2 emitter stage is also associated with resistance R6, Resistance R6 other end ground connection.

Resistance unit one includes the resistance R7 and resistance R8 of series connection.Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5 And resistance R7 and resistance R8 be partial pressure effect, input be the voltage in low voltage range when, do not meet triode Q1 With triode Q2 turn-on conditions, so as to which triode Q1 and triode Q2 is closed, the voltage of rectification module output is by resistance R7, electricity After hindering R8 and resistance R1 partial pressures, become a voltage signal for being less than voltage setting value to control module.What it is in input is low Triode Q1 and triode Q2 conductings during voltage in voltage range, the voltage of rectification module output pass through resistance R7, resistance R8 And the voltage flowed out by triode Q1 is added after resistance R1 partial pressures, become a voltage signal for being more than voltage setting value To control module.Triode Q1 is PNP type triode, and triode Q2 is NPN type triode.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, the detection module also includes triode Q3, resistance R9 and resistance unit two, one end of the base stage connection resistance unit two of the triode Q3 and the one of resistance R9 End, the output end of the other end connection rectification module of resistance unit two, resistance R9 other end ground connection, triode Q3 emitter stage Connecting triode Q2 emitter stage, the colelctor electrode connecting triode Q2 of triode Q3 colelctor electrode, the resistance unit two Total resistance value be more than resistance unit one total resistance value.Resistance unit two includes resistance R10.By setting triode Q3 can Increase high voltage detection range improves the scope of application of this drive circuit.Because the total resistance value of resistance unit two is more than resistance list The total resistance value of member one, triode Q3 tie point is identical with triode Q2 tie point, therefore is meeting triode Q2 conditions When do not meet triode Q3 turn-on condition also, when the voltage of rectification module output is more than certain value, now triode Q3 Conducting, triode Q4 are also switched on, and in the case that voltage becomes big again, triode Q4 is closed, and triode Q3 is held on, until More than high voltage range.Triode Q3 is NPN type triode.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, the control module include metal-oxide-semiconductor Q4, Metal-oxide-semiconductor Q5 and resistance R13, the voltage signal that detection module is exported less than voltage setting value in low voltage range give metal-oxide-semiconductor Q4, Turn off metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 is opened；In high voltage range, voltage signal of the detection module output more than voltage setting value Metal-oxide-semiconductor Q4 is given, opens metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 shut-offs, the drain electrode connection metal-oxide-semiconductor Q5 of metal-oxide-semiconductor Q4 grid, metal-oxide-semiconductor Q4 source electrode is connected with resistance R11, resistance R11 other end ground connection, and the grid of the metal-oxide-semiconductor Q4 connects resistance R1 and three respectively Pole pipe Q1 colelctor electrode, metal-oxide-semiconductor Q4 grid are also associated with resistance R12, and the resistance R12 other end is grounded, the metal-oxide-semiconductor Q5's The output end of drain electrode connection rectification module, metal-oxide-semiconductor Q5 source electrode are connected with diode D1, diode D1 anode connection metal-oxide-semiconductor Q5, negative electrode connect the input of the one of which of two groups of LED lamp modules, and the input of another group of LED lamp module passes through resistance R13 The output end of rectification module and output end connection diode D1 negative electrode are connected, the grid of the metal-oxide-semiconductor Q5 is connected with resistance list Member three, resistance unit three connect the output end of rectification module.

Metal-oxide-semiconductor Q4 grid receives the voltage signal that detection module is sent, and is unsatisfactory for metal-oxide-semiconductor Q4's in low voltage range Turn-on condition, now metal-oxide-semiconductor Q4 turn off, electric current flow to metal-oxide-semiconductor Q5 grid from resistance unit three, and metal-oxide-semiconductor Q5 has higher electricity Pressure meets turn-on condition, and now electric current flows through to the one of which of two groups of LEDs, another way from metal-oxide-semiconductor passed through from resistance R13 all the way Cross to another group of LED, realize the parallel connection of the units such as two groups of LED.Meet the turn-on condition of MOS Q4 pipes in high voltage range, Now metal-oxide-semiconductor Q4 is turned on, and metal-oxide-semiconductor Q5 is closed, and now there was only electric current all the way, so as to which two groups of LED lamp modules are connected.Resistance unit three Including resistance R14, resistance R15 and resistance R16.The voltage setting value minimum that both metal-oxide-semiconductor Q4 is turned on.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, the control module includes being used to adjust The control chip of LED lamp module operating power, the detection input of the control chip are connected with sampling unit, the control core The control output end of piece is connected with power adjustment unit, and the output end of two groups of LED lamp modules connects power adjustment unit respectively Input, the output end connection sampling unit of the power adjustment unit, the power supply side of the control chip are connected with electricity R17, the output end of resistance R17 connection rectification modules are hindered, the power output end of the control chip distinguishes connecting triode Q1's The emitter stage of emitter stage, triode Q2 emitter stage and triode Q3, the voltage that the control chip is sent according to sampling unit Signal judges and control the operating power of power adjustment unit regulation LED lamp module.Control chip output reference voltage gives three The emitter stage of pole pipe Q1 emitter stage, triode Q2 emitter stage and triode Q3, for triode Q1, triode Q2 and triode Used in Q3 detection rectification module input voltages, while control chip is by controlling power adjustment unit to make LED lamp module no matter going here and there Connection or parallel connection are operated in rated power.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, the sampling unit include resistance R18, Resistance R19, resistance R20, metal-oxide-semiconductor Q6 and metal-oxide-semiconductor Q7, in low voltage range, metal-oxide-semiconductor Q6 is closed, and metal-oxide-semiconductor Q7, which is opened, makes resistance R18 and resistance R20 series connection, the detection input of control chip sample voltage as the voltage on resistance R18；In high voltage range When, metal-oxide-semiconductor Q6 is opened, and metal-oxide-semiconductor Q7 is closed, and the detection input of control chip samples voltage as the voltage on resistance R19.By In the connected mode difference under low voltage range with two groups of LED lamp modules under high voltage range, ensureing different connection sides Under formula two groups of LED lamp modules all in rated power, it is necessary to by LED lamp module operating current when increasing in parallel.Set by above-mentioned Putting can cause control chip to adjust the operating current of LED lamp module than under high voltage by power adjustment unit at lower voltages The operating current of LED lamp module is big, so as to make the work work(of the LED lamp module in low voltage range and high voltage range Rate is identical.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, the sampling unit also includes metal-oxide-semiconductor Q8, resistance R18 one end connect the detection input of control chip and resistance R20 one end respectively, and the other end connects resistance respectively R19 one end and power adjustment unit, resistance R19 other end ground connection, resistance R20 other end connection metal-oxide-semiconductor Q7 leakage Pole, the source ground of the metal-oxide-semiconductor Q7, the power output end of metal-oxide-semiconductor Q7 grid connection control chip, metal-oxide-semiconductor Q7 grid The drain electrode that resistance R21 and resistance R22, the metal-oxide-semiconductor Q6 are connected between power output end controls core by resistance R22 connections The power output end of piece, metal-oxide-semiconductor Q6 grid connection metal-oxide-semiconductor Q4 grid, metal-oxide-semiconductor Q8 grid connection metal-oxide-semiconductor Q7 grid, Metal-oxide-semiconductor Q8 drain electrode connection power adjustment unit, the source electrode of the metal-oxide-semiconductor Q8 and metal-oxide-semiconductor Q6 source ground.Sampling unit Above-mentioned setting can meet that Q6 closes in low voltage range, and metal-oxide-semiconductor Q7 is opened and metal-oxide-semiconductor Q8 is opened, and metal-oxide-semiconductor Q8, which is opened, to be caused Power adjustment unit carries out power adjusting to two groups of LED lamp modules after parallel connection, meets that Q6 opens in low voltage range, MOS Pipe Q7 is closed and metal-oxide-semiconductor Q8 is closed, and metal-oxide-semiconductor Q8, which is closed, causes power adjustment unit to carry out two groups of LED lamp modules after series connection Power adjusting.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, the power adjustment unit includes two groups Metal-oxide-semiconductor, every group of metal-oxide-semiconductor comprise at least a metal-oxide-semiconductor, and every group of LED lamp module includes at least one LED lamp unit, a LED Unit at least has a LED, and the output end of two groups of LED lamp modules is all connected with one of which metal-oxide-semiconductor, and another group of metal-oxide-semiconductor connects Connect one of which LED lamp module.Pass through the operating current for adjusting the dutycycle of metal-oxide-semiconductor to adjust in LED lamp module.So that LED lamp module is consistent with the operating power in high voltage range in low voltage range.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, every group of LED lamp module is respectively provided with three LED lamp unit, respectively LED lamp unit one, LED lamp unit two, LED lamp unit three, LED lamp unit four, the and of LED lamp unit five LED lamp unit six, every group of three LED lamp units series connection are sequentially connected, and one group of metal-oxide-semiconductor has three metal-oxide-semiconductors, respectively MOS Pipe Q9, metal-oxide-semiconductor Q10, metal-oxide-semiconductor Q11, another group of metal-oxide-semiconductor have two metal-oxide-semiconductors, respectively metal-oxide-semiconductor Q12 and metal-oxide-semiconductor Q13, MOS Pipe Q9 drain electrode connection connects the current output terminal of LED lamp unit one and LED lamp unit four, metal-oxide-semiconductor Q10 drain electrode connection respectively The current output terminal of LED lamp unit two and LED lamp unit five is connected respectively, and metal-oxide-semiconductor Q11 drain electrode connects LED lamp unit respectively The current output terminal of three and the current output terminal of LED lamp unit six, metal-oxide-semiconductor Q12 drain electrode connection LED lamp unit five, metal-oxide-semiconductor The current output terminal of Q13 drain electrode connection LED lamp unit six, metal-oxide-semiconductor Q9 grid, metal-oxide-semiconductor Q10 grid, metal-oxide-semiconductor Q11 The grid of grid, metal-oxide-semiconductor Q12 grid and metal-oxide-semiconductor Q13 connects the control output end of control chip, metal-oxide-semiconductor Q9 source respectively Pole, metal-oxide-semiconductor Q10 source electrode, metal-oxide-semiconductor Q11 source electrode, metal-oxide-semiconductor Q12 source electrode and metal-oxide-semiconductor Q13 source electrode connect resistance respectively R19。

The operating voltage of LED lamp unit one is as the operating voltage of LED lamp unit four, the work electricity of LED lamp unit two Pressure is as the operating voltage of LED lamp unit five, the operating voltage of LED lamp unit three and the operating voltage one of LED lamp unit six Sample.By setting multiple metal-oxide-semiconductors to be adjusted respectively to operating current corresponding to LED lamp unit progress, so that regulation efficiency high, and And multiple metal-oxide-semiconductors set can radiating effect it is relatively good, improve the stability of circuit.

In the above-mentioned Width funtion LED lamp drive circuit with emergency function, this drive circuit also includes being used to adjust The light-adjusting module of LED lamp module brightness, the light modulation input of the light-adjusting module connection control chip, the light-adjusting module also connect Connect the output end of rectification module.Light-adjusting module is according to the dimmer voltage signal of input so as to which output control signal is to control chip Input is dimmed, the signal that control chip inputs according to light modulation input, controls the operating brightness of LED lamp module.

Compared with prior art, this Width funtion LED lamp drive circuit with emergency function is with advantages below：

1st, the utility model can be by setting detection module to export difference according to different input voltage ranges Voltage signal to control module, control module can control two groups of LED serial or parallel connections to meet present input voltage It is wider using the scope of application is maximized.

2nd, the utility model can keep LED lamp module to be held at specified work(in the case of low pressure or high input voltage Rate is operated.

3rd, the utility model can control two groups of LED lamp modules to be lighted after mains failure by battery, from And emergency lighting.

Brief description of the drawings

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

Fig. 2 is the circuit structure connection signal that the utility model battery is connected with LED lamp module and Width funtion drives Figure.

Fig. 3 is the structural representation of the utility model detection module.

Fig. 4 is the structural representation of the utility model control module.

Fig. 5 is the structural representation of the utility model rectification module.

Fig. 6 is the structural representation of two groups of LED lamp modules of the utility model.

Fig. 7 is the structural representation of the utility model light-adjusting module.

In figure, 1, civil power；2nd, rectification module；3rd, LED lamp module；4th, detection module；5th, control module；6th, controller；7、 Relay；8th, control chip；9th, sampling unit；10th, power adjustment unit；11st, LED lamp unit one；12nd, LED lamp unit two； 13rd, LED lamp unit three；14th, LED lamp unit four；15th, LED lamp unit five；16th, LED lamp unit six；17th, battery；18th, full-bridge Rectifier bridge；19th, light-adjusting module；20th, emergency service module；21st, rectifier transformer module.

Embodiment

It is specific embodiment of the utility model below, and the technical solution of the utility model is made further with reference to accompanying drawing Description, but the utility model is not limited to these embodiments.

The circuit that controller 6 is connected with relay 7 and controller 6 electrically connects with city is eliminated in Fig. 2 of accompanying drawing.Fig. 5 Eliminate emergency service module 20.A points in Fig. 3 are connected with the A points in Fig. 5 respectively with the A points in Fig. 4, the B points in Fig. 3 with B points in Fig. 4 are connected, and the C points in Fig. 3 are connected with the C points in Fig. 4, and the D points in Fig. 3 are connected with the D points in Fig. 4, the E in Fig. 3 Point is connected with the E points in Fig. 4, and the F points in Fig. 4 are connected with the F points in Fig. 6, and the G points in Fig. 4 are connected with the G points in Fig. 6, H points in Fig. 4 are connected with the H points in Fig. 6, and the I points in Fig. 4 are connected with the I points in Fig. 6, the J points in Fig. 4 and the J points in Fig. 6 Connect, the K points in Fig. 4 are connected with the K points in Fig. 6, and the L points in Fig. 4 are connected with the L points in Fig. 6, in the M points in Fig. 4 and Fig. 6 The connection of M points, the O points in Fig. 7 are connected with the O points in Fig. 3, and the Q points in Fig. 7 are connected with the Q points in Fig. 4, the P points in Fig. 7 and P points connection in Fig. 4, so as to form the circuit diagram in Fig. 2.

As shown in figure 1, a kind of Width funtion LED lamp drive circuit with emergency function, including for connecting the whole of civil power 1 2, two groups of LED lamp modules 3 of flow module, for detect judge input voltage in low voltage range still in the inspection of high voltage range Survey module 4 and for switching two groups of serial or parallel connections of LED lamp module 3 and controlling two groups of LED lamp modules 3 by rated power work Control module 5.The output end of rectification module 2 distinguishes connection detection module 4 and control module 5, detection module 4 and two groups of LED moulds Block 3 distinguishes link control module 5.The voltage setting value of two groups of LED series connection of switching is provided with control module 5.This drive circuit Also include emergency service module 20, emergency service module 21 includes being used for the battery 17 for connecting civil power 1, emergency service module 20 Two groups of LED lamp modules 3 are connected, the battery 17 of emergency service module 20 can enter when civil power 1 powers off to two groups of LED lamp modules 3 Row power supply.Emergency service module 20 also includes controller 6 and relay 7, and controller 6 has voltage detecting end, voltage detecting end For connecting the live wire in civil power 1, the output end of the coil connection controller 6 of relay 7, the two of the normal open switch of relay 7 End connects battery 7 and two groups of LED lamp modules 3 respectively, and the current input terminal of one group of LED lamp module 3 connects the normally opened of relay 7 One end of switch, the other end connection battery 17 of the normal open switch of relay 7, the current output terminal connection of this group of LED lamp module 3 The current input terminal of another group of LED lamp module 3.Rectifier transformer module 21, rectifier transformer mould are provided between battery 17 and civil power 1 Block 21 is input in battery after carrying out Transformer Rectifier to civil power.Rectifier transformer module 21 includes transformer and rectifier, and this is Prior art, it will not be described here.

Alternatively：Emergency service module 20 includes current sensor, controller 6, triode, and triode is set Between battery 17 and two groups of LED lamp modules 3.Whether there is electric current on the live wire of current sensor detection civil power 1, concurrently deliver letters Number controller 6 is given, controller 6 controls triode ON battery and two groups of LED lamp modules 3 in no electric current, otherwise disconnection.

As depicted in figs. 1 and 2, this drive circuit also includes being used for the light-adjusting module 19 for adjusting the brightness of LED lamp module 3, adjusts The input of the link control module 5 of optical module 19, light-adjusting module 19 are also connected with the output end of rectification module.As preferred light modulation mould Block 19 connects the output end of controller 6.

As shown in Figures 2 and 3, detection module 4 includes triode Q1 and triode Q2.The output reference voltage of control module 5 To triode Q1 and triode Q2, rectification module 2 exports detection voltage to triode Q1 and triode Q2, in low voltage range Triode Q1 and triode Q2 are turned off, and detection module 4 exports the voltage signal less than voltage setting value to control module 5, control Molding block 5 controls two groups of LED lamp modules 3 in parallel；In high voltage range, triode Q1 and triode Q2 are opened, detection module 4 voltage signals for exporting more than voltage setting value control two groups of LED lamp modules 3 to connect to control module 5, control module 5.

As shown in Figures 2 and 3, detection module 4 also include for the resistance R1 of partial pressure, resistance R2, resistance R3, resistance R4, Resistance R5 and the resistance unit one at least with a resistance.The output end of one end connection rectification module 2 of resistance unit one, Triode Q1 colelctor electrode link control module 5 simultaneously passes through the other end of resistance R1 connections resistance unit one, triode Q1 transmittings Pole link control module 5, for triode Q1 base stages by resistance R2 link control modules 5, triode Q2 colelctor electrode passes through resistance R3 connecting triodes Q1 base stage, triode Q2 emitter stage are connected by resistance R4 link control modules 5, triode Q2 base stage The other end of connecting resistance unit one, triode Q2 base stage are also connected with resistance R5 one end, resistance R5 other end ground connection, three poles Pipe Q2 emitter stage is also associated with resistance R6, resistance R6 other end ground connection.Resistance unit one includes the resistance R7 and electricity of series connection Hinder R8, the output end of resistance R7 one end connection rectification module 2, other end connection resistance R8 one end, the resistance R8 other end Connecting triode Q2 base stage and resistance R1 one end respectively.

As shown in Figures 2 and 3, detection module 4 also includes triode Q3, resistance R9 and resistance unit two.Triode Q3 One end of base stage connection resistance unit two and resistance R9 one end, the other end connection rectification module 2 of resistance unit two Output end, resistance R9 other end ground connection, triode Q3 emitter stage connecting triode Q2 emitter stage, triode Q3 current collection Pole connecting triode Q2 colelctor electrode, the total resistance value of resistance unit two are more than the total resistance value of resistance unit one.Resistance unit Two, which include resistance R10 and resistance R23, resistance R10 and resistance R23, connects, resistance R10 one end connecting triode Q3 base stage, The output end of resistance R23 one end connection rectification module 2.Detection module 4 also includes being used to filter and the electric capacity C1 and electricity of energy storage Hold C2, electric capacity C1 one end connecting triode Q3 base stage, other end ground connection, electric capacity C2 one end connecting triode Q2 base Pole, other end ground connection.

Alternatively：Detection module 4 includes comparator, and one of input of comparator passes through divider resistance The output end of rectification module 2 is connected, another input provides benchmark by divider resistance link control module 4, control module 4 Voltage, show to work as when the voltage of the input input of comparator connection rectification module 2 provides reference voltage higher than control module 4 Preceding civil power input is in high voltage range, and now comparator output voltage signal controls two groups to control module 4, control module 4 LED lamp module 3 is connected, otherwise output voltage signal does not control two groups of LED lamp modules to comparator to control module 4, control module 4 3 is in parallel.

As shown in Figure 2 and Figure 4, control module 5 includes metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 and resistance R13, is examined in low voltage range Survey the voltage signal that module 4 export less than voltage setting value and give metal-oxide-semiconductor Q4, turn off metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 openings；In high electricity When pressing scope, the voltage signal that detection module 4 export more than voltage setting value gives metal-oxide-semiconductor Q4, makes metal-oxide-semiconductor Q4 openings, metal-oxide-semiconductor Q5 Shut-off.Metal-oxide-semiconductor Q4 drain electrode connection metal-oxide-semiconductor Q5 grid, metal-oxide-semiconductor Q4 source electrode are connected with resistance R11, and resistance R11's is another End ground connection.Metal-oxide-semiconductor Q4 grid connects resistance R1 and triode Q1 colelctor electrode respectively, and metal-oxide-semiconductor Q4 grid is also associated with electricity Hinder R12, resistance R12 other end ground connection.The output end of metal-oxide-semiconductor Q5 drain electrode connection rectification module 2, metal-oxide-semiconductor Q5 source electrode connect Diode D1, diode D1 anode connection metal-oxide-semiconductor Q5 are connected to, negative electrode connects the input of the one of which of two groups of LED lamp modules 3 End, the input of another group of LED lamp module 3 connect diode by the output end and output end of resistance R13 connections rectification module 2 D1 negative electrode.Metal-oxide-semiconductor Q5 grid is connected with resistance unit three, and resistance unit three connects the output end of rectification module 2.Resistance list Member three includes resistance R14, resistance R15 and resistance R16.The voltage setting value minimum that both metal-oxide-semiconductor Q4 is turned on.The one of resistance R14 End connection metal-oxide-semiconductor Q5 grid, other end connection resistance R15 one end, resistance R15 other end connection resistance R16 one end, The resistance R16 other end is connected with diode D2, diode D2 anode connection resistance R13, negative electrode connection resistance R16.Resistance Electric capacity C6 is provided between R15 and resistance R16.This control module 5 also includes voltage regulation unit, and voltage regulation unit includes voltage-regulator diode ZD1, resistance R28 and electric capacity C3, resistance R28 and electric capacity C3 both ends difference connecting triode Q5 source electrode and resistance R14's One end, voltage-regulator diode ZD1 anode connecting triode Q5 source electrode, the one of voltage-regulator diode ZD1 negative electrode connection resistance R14 End.

As shown in Figure 2 and Figure 4, control module 5 includes being used for the control chip 8 for adjusting the operating power of LED lamp module 3.Control Coremaking piece 8 uses model L1050 chip.The detection input of control chip 8 is connected with sampling unit 9, control chip 8 Control output end is connected with power adjustment unit 10, and the output end of two groups of LED lamp modules 3 connects power adjustment unit 10 respectively Input.The output end connection sampling unit 9 of power adjustment unit 10.The power supply side of control chip 8 is connected with resistance The output end of R17, resistance R17 connection rectification module 2, the power output end difference connecting triode Q1 of control chip 8 transmitting The emitter stage of pole, triode Q2 emitter stage and triode Q3, and by resistance R2 connecting triodes Q1 base stage, pass through resistance R2 and resistance R3 difference connecting triodes Q2 colelctor electrode and triode Q3 colelctor electrode.Control chip 8 is sent out according to sampling unit 9 The voltage signal sent judges and control the operating power that power adjustment unit 10 adjusts LED lamp module 3.Control chip 8 has Five control output ends, respectively control output end one, control output end two, control output end three, control output end four, control Output end five.Resistance R17 both ends are connected to electric capacity C7 and electric capacity C8, electric capacity C7 and electric capacity C8 other end ground connection.Electricity Hold C7 and electric capacity C8 to be used to filter, connected between resistance R17 and rectification module 2 by resistance R13, resistance R13 both ends difference Connect the output end of resistance R17 and rectification module 2.The power output end of control chip 8 is connected with defeated for stability contorting chip 8 The resistance R30 and electric capacity C15 and electric capacity C16 of the voltage gone out, resistance R30 one end connection control chip 8, other end connection electric capacity C15 one end, electric capacity C15 other end ground connection, electric capacity C16 one end connection control chip 8, other end ground connection.Control chip 8 It is also associated with electric capacity C17, electric capacity C17 other end ground connection.

Alternatively：Control module 5 includes microprocessor, power adjustment unit 10, sampling unit 9 and relay Device one, relay two, two groups of LED lamp modules 3 connect power adjustment unit 10 respectively, and sampling unit 9 connects power adjustment unit 10, sampling unit 9 connects microprocessor, and power adjustment unit 10 connects the output end of microprocessor, and the normally closed of relay one is opened Close and set between one of which LED lamp module 3 and the output end of rectification module 2, the current input terminal of this group of LED lamp module 3 with The normally closed switch of relay two, the coil and relay of relay one are set between the current output terminal of another group of LED lamp module 3 Two coil connects the output end of microprocessor respectively.Microprocessor in civil power high voltage range control relay one it is normally closed Switch off, the normally closed switch closure of relay two, so as to which two groups of LED lamp modules are connected；Microprocessor is at civil power in low electricity The normally closed switch closure of control relay one, the normally closed switch of relay two disconnect when pressing scope, so as to two groups of LED lamp modules simultaneously Connection.

As shown in Figure 2 and Figure 4, sampling unit 9 includes resistance R18, resistance R19, resistance R20, metal-oxide-semiconductor Q6 and metal-oxide-semiconductor Q7, In low voltage range, metal-oxide-semiconductor Q6 is closed, and metal-oxide-semiconductor Q7, which is opened, makes resistance R18 and resistance R20 connect, and the detection of control chip 8 is defeated Enter end and sample voltage as the voltage on resistance R18；In high voltage range, metal-oxide-semiconductor Q6 is opened, and metal-oxide-semiconductor Q7 is closed, and controls core The detection input of piece 8 samples voltage as the voltage on resistance R19.Sampling unit 9 also includes metal-oxide-semiconductor Q8 and electric capacity C13, electricity Resistance R18 one end connects the detection input of control chip 8 and resistance R20 one end respectively, and the other end connects resistance R19's respectively One end and power adjustment unit 10, resistance R19 other end ground connection, resistance R20 other end connection metal-oxide-semiconductor Q7 drain electrode. Metal-oxide-semiconductor Q7 source ground, the power output end of metal-oxide-semiconductor Q7 grid connection control chip 8, metal-oxide-semiconductor Q7 grid and power supply Resistance R21 and resistance R22 are connected between output end, metal-oxide-semiconductor Q6 drain electrode passes through the power supply of resistance R22 connections control chip 8 Output end, metal-oxide-semiconductor Q6 grid connection metal-oxide-semiconductor Q4 grid, metal-oxide-semiconductor Q8 grid connection metal-oxide-semiconductor Q7 grid, metal-oxide-semiconductor Q8 Drain electrode connection power adjustment unit 10, metal-oxide-semiconductor Q8 source electrode and metal-oxide-semiconductor Q6 source ground.Electric capacity C13 both ends difference Connect metal-oxide-semiconductor Q7 grid and ground connection.

Alternatively：Sampling unit 9 includes current sensor, and the electric current of current sensor connection control chip is adopted Sample input, control chip 8 judge to show that current civil power is in high voltage range or low according to the input voltage of detection module Voltage range, the interior current setting value one that rated power work is pressed provided with two groups of LED lamp modules 3 of low voltage range of control chip 8 And two groups of LED lamp modules 3 of low voltage range press the current setting value two of rated power work.In low voltage range, control The electric current that chip 8 is sent according to current sensor, when both are different, adjusts power adjusting compared with current setting value one Unit 10 changes electric current in circuit until both are consistent, and in high voltage range, control chip 8 is sent according to current sensor Electric current compared with current setting value two when both are different, regulation power adjustment unit 10 change circuit in electric current it is straight It is consistent to both.So that two groups of LED lamp modules 3 are enough operated in rated power when connecting and be in parallel.

As shown in Figure 2 and Figure 4, power adjustment unit 10 includes two groups of metal-oxide-semiconductors, and every group of metal-oxide-semiconductor comprises at least a MOS Pipe, every group of LED lamp module 3 include at least one LED lamp unit, and a LED lamp unit at least has a LED, two groups of LED The output end of lamp module 3 is all connected with one of which metal-oxide-semiconductor, another group of metal-oxide-semiconductor connection one of which LED lamp module 3.

As shown in Figure 2 and Figure 6, preferably, every group of LED lamp module 3 is respectively provided with three LED lamp units, respectively LED Unit 1, LED lamp unit 2 12, LED lamp unit 3 13, LED lamp unit 4 14, LED lamp unit 5 15 and LED lamp unit six 16, every group of three LED lamp units series connection is sequentially connected, and one group of metal-oxide-semiconductor has three metal-oxide-semiconductors, respectively metal-oxide-semiconductor Q9, metal-oxide-semiconductor Q10, metal-oxide-semiconductor Q11, another group of metal-oxide-semiconductor have two metal-oxide-semiconductors, respectively metal-oxide-semiconductor Q12 and metal-oxide-semiconductor Q13, metal-oxide-semiconductor Q9 drain electrode Connection connects the current output terminal of LED lamp unit 1 and LED lamp unit 4 14 respectively, and metal-oxide-semiconductor Q10 drain electrode connection connects respectively The current output terminal of LED lamp unit 2 12 and LED lamp unit 5 15 is connect, metal-oxide-semiconductor Q11 drain electrode connects LED lamp unit three respectively 13 and the current output terminal of LED lamp unit 6 16.The current output terminal of metal-oxide-semiconductor Q12 drain electrode connection LED lamp unit 5 15, MOS The current output terminal of pipe Q13 drain electrode connection LED lamp unit 6 16, metal-oxide-semiconductor Q9 grid, metal-oxide-semiconductor Q10 grid, metal-oxide-semiconductor The grid of Q11 grid, metal-oxide-semiconductor Q12 grid and metal-oxide-semiconductor Q13 connects the control output end of control chip 8, metal-oxide-semiconductor Q9 respectively Source electrode, metal-oxide-semiconductor Q10 source electrode, metal-oxide-semiconductor Q11 source electrode, metal-oxide-semiconductor Q12 source electrode and metal-oxide-semiconductor Q13 source electrode connect electricity respectively Hinder R19.

The operating voltage of LED lamp unit 1 as the operating voltage of LED lamp unit 4 14, LED lamp unit 2 12 Operating voltage is as the operating voltage of LED lamp unit 5 15, operating voltage and the LED lamp unit 6 16 of LED lamp unit 3 13 Operating voltage it is the same.

As shown in Figure 2 and Figure 4, power adjustment unit 10 also includes metal-oxide-semiconductor Q14, metal-oxide-semiconductor Q15, metal-oxide-semiconductor Q16, metal-oxide-semiconductor Q17, metal-oxide-semiconductor Q18, electric capacity C12, resistance 24, resistance 25, resistance 26 and resistance 27.Metal-oxide-semiconductor Q13 source electrode connection resistance 24 One end, the other end connection resistance R19 of resistance 24 one end, metal-oxide-semiconductor Q14 grid, metal-oxide-semiconductor Q15 grid, metal-oxide-semiconductor Q16 Grid is all connected with metal-oxide-semiconductor Q13 grid, and metal-oxide-semiconductor Q13 grid connects the control output end five of control chip 8, metal-oxide-semiconductor Q14's Drain electrode, metal-oxide-semiconductor Q15 drain electrode and metal-oxide-semiconductor Q16 drain electrode are all connected with metal-oxide-semiconductor Q13 drain electrode, metal-oxide-semiconductor Q14 source electrode connection electricity Hinder R25 one end, resistance R25 one end connection resistance R19 one end, metal-oxide-semiconductor Q15 source electrode connection resistance R26 one end, electricity R26 one end connection resistance R19 one end is hindered, metal-oxide-semiconductor Q16 source electrode connection resistance R27 one end, resistance R27 one end connects Connecting resistance R19 one end.

Metal-oxide-semiconductor Q17 grid and metal-oxide-semiconductor Q18 grid are all connected with metal-oxide-semiconductor Q11 grid, metal-oxide-semiconductor Q17 drain electrode and Metal-oxide-semiconductor Q18 drain electrode is all connected with metal-oxide-semiconductor Q11 drain electrode, and metal-oxide-semiconductor Q17 source electrode connects resistance R19 with metal-oxide-semiconductor Q18 source electrode One end.The control output end one of metal-oxide-semiconductor Q9 grid connection control chip 8, metal-oxide-semiconductor Q10 grid connect control chip 8 Control output end two, the metal-oxide-semiconductor Q11 control output end three of grid connection control chip 8, metal-oxide-semiconductor Q12 grid connection control The control output end four of chip 8.Electric capacity C12 one end connection metal-oxide-semiconductor Q9 grid other end ground connection, is filtered.Pass through increase Metal-oxide-semiconductor Q14, metal-oxide-semiconductor Q15, metal-oxide-semiconductor Q16, metal-oxide-semiconductor Q17 and metal-oxide-semiconductor Q18, power adjusting efficiency is improved, and in two groups of LED There are last electric current outflow end multiple metal-oxide-semiconductors to be adjusted after the LED lamp unit series connection of lamp module 3, further improve radiating With power adjusting effect.

Alternatively：Power adjustment unit 10 includes two groups of metal-oxide-semiconductors, and every group of metal-oxide-semiconductor extremely has a metal-oxide-semiconductor, Respectively metal-oxide-semiconductor one and metal-oxide-semiconductor two, the drain electrode of the current output terminal connection metal-oxide-semiconductor one of LED lamp unit 3 13, the grid of metal-oxide-semiconductor one Pole connects control chip 8, the source electrode connection resistance R19 of metal-oxide-semiconductor one, the current output terminal connection metal-oxide-semiconductor two of LED lamp unit 6 16 Drain electrode, the grid connection control chip 8 of metal-oxide-semiconductor two, the source electrode connection resistance R19 of metal-oxide-semiconductor two.

As shown in Figure 2 and Figure 4, control module 5 also includes the electric capacity C9, electric capacity 10, electric capacity C11 and for preventing for filtering Only the diode D3 of electric current reverse circulated, diode D4, diode D5 and diode D6, diode D3 anode connection LED The output end of unit 3 13, the input of diode D3 negative electrode connection LED lamp unit 4 14；Diode D4 anode connection The output end of LED lamp unit 4 14, the output end of diode D4 negative electrode connection LED lamp unit 1；Diode D5 anode Connect the output end of LED lamp unit 5 15, the output end of diode D5 negative electrode connection LED lamp unit 2 12；Diode D6's Anode connects the output end of LED lamp unit 6 16, the output end of diode D5 negative electrode connection LED lamp unit 3 13.Electric capacity C9 One end, one end of electric capacity 10 and electric capacity C11 one end ground connection, electric capacity C9 other end connection diode D4 negative electrode, electric capacity 10 other end connection diode D5 negative electrode, electric capacity C11 other end connection diode D6 negative electrode.

As shown in Figure 2 and Figure 4, control module 5 also includes the input voltage for being used to adjust the power factor harmonic of civil power 1 Detection unit.Input voltage measurement unit include metal-oxide-semiconductor Q19, resistance R29, voltage-regulator diode ZD2, resistance R31, resistance R25, Resistance R26 and electric capacity C14.The output end of resistance R25 one end connection rectification module 2, other end connection resistance R26 one end, The voltage detecting end of civil power 1 of resistance R26 other end connection control chip 8, resistance R29 one end, voltage-regulator diode ZD2 the moon One end of pole, resistance R31 one end and electric capacity C14 connects the voltage detecting end of civil power 1 of control chip 8 respectively.Resistance R29's Other end connection metal-oxide-semiconductor Q19 drain electrode, the grid connection metal-oxide-semiconductor Q4 of metal-oxide-semiconductor Q19 drain electrode grid, metal-oxide-semiconductor Q19 source Pole is grounded.Voltage-regulator diode ZD2 plus earth, the resistance R31 other end and the other end ground connection of electric capacity 14.By above-mentioned Control chip 8, and energy will not be punctured by setting the voltage for the voltage detecting end of civil power 1 input that can remain control chip 8 Enough adjust the power factor harmonic of civil power 1.

As shown in figure 5, rectification module 2 includes being used for the piezo-resistance VR1 and full-bridge rectification for preventing that current surge from impacting Bridge 18 and electric capacity C4 and electric capacity C5 for filtering.Piezo-resistance VR1 is connected in parallel between civil power 1 and full bridge rectifier bridge 18, full-bridge Alternating voltage can be changed into DC voltage by the circuit of rectifier bridge 18, and this is prior art, is repeated no more.C5 points of electric capacity C4 and electric capacity It is not in parallel with full bridge rectifier bridge 18.The output end of full bridge rectifier bridge 18 connects resistance R7, resistance R23, resistance 13, metal-oxide-semiconductor respectively Q5 and resistance 25.There are two groups of LED lamp modules 3 to be powered detection module 4 and the control module 5 with this.As another A kind of scheme rectification module 2 includes rectifier, and rectification is carried out to civil power by rectifier.The input of rectification module 2 is connected with The live wire of hand switch K1, hand switch K1 other end connection civil power 1.

As shown in Figure 2 and Figure 7, light-adjusting module 19 includes triode Q20, resistance R32, the resistance for partial pressure of NPN type R33, resistance R34, resistance R35, resistance R36, resistance R37, resistance R38, resistance R39 and electric capacity C18, electric capacity for filtering The C19 and voltage-regulator diode ZD3 for voltage stabilizing, also prevent the diode D9 and diode D10 of electric current reverse circulated.Resistance The output end of R32 one end connection rectification module, other end connection resistance R33 one end, the resistance R33 other end connect three poles Pipe Q20 colelctor electrode, the output end of one end connection rectification module of resistance R34, other end connection resistance R35 one end, resistance R35 other end difference connecting triode Q20 base stage and voltage-regulator diode ZD3 negative electrode, voltage-regulator diode ZD3 anode Ground connection, triode Q20 emitter stage connection diode D9 anode, diode D9 negative electrode connection resistance R36 one end, resistance R37 one end and electric capacity C18 one end, the resistance R36 other end connect resistance R38 one end and diode D10 respectively Anode, the diode D10 negative electrode connection resistance R37 other end, be used to access between resistance R37 and diode D10 and adjust Photoelectric signal, stable voltage output power supply is can access between resistance R37 and diode D10, and also accessible output voltage can The processor of change.Preferably, between the voltage output end connection resistance R37 and diode D10 of controller, the ground connection of controller End ground connection, electric capacity C18 other end ground connection.The resistance R38 other end connects resistance R39 one end, electric capacity C19 one end respectively And the light modulation input of control chip, the resistance R39 other end and the electric capacity C19 other end are grounded respectively.

Alternatively：Light-adjusting module 19 includes a metal-oxide-semiconductor three, and the grid of the metal-oxide-semiconductor connects the defeated of controller 6 Go out end, source electrode connects the light modulation input of control chip 8 by divider resistance, and drain electrode connects rectification module 2 by divider resistance Output end.The dutycycle of the control metal-oxide-semiconductor three of controller 6 inputs to the voltage for dimming input of control chip 8 so as to adjust Signal, chief engineer's rate of doing work of two groups of LED lamp modules 3 is adjusted by power adjustment unit 10 by control chip 8.

It is the course of work of the present utility model below：

When this has the Width funtion LED lamp drive circuit work of emergency function, when civil power 1 has electricity because battery 17 connects Civil power 1 is connect, therefore civil power 1 is charged to battery 17.Now there is voltage supply controller 6 on the live wire of civil power 1, therefore control Device 6 not control relay 7 normal open switch closure, so as to drive circuit driven work.K1 is operated with manual switches to open Or close LED lamp module 3.

When being operated with manual switches K1 and civil power 1 and rectification module 2 is powered, civil power 1 is detected by detection module 4 and is in high electricity Scope or low voltage range are pressed, the input voltage of civil power 1 is set and is less than 160V as low voltage range more than 90V, it is small more than 160V In 305V be high voltage range.When civil power 1 and rectification module 2 turn on, rectification module 2 civil power 1 is carried out export after rectification to Detection module 4 and control module 5.

The voltage exported after the rectification of rectification module 2 after resistance R13 and resistance R17 partial pressures by exporting to control chip 8 Power supply side be powered, control chip 8 is started working, the power output end output reference voltage of control chip 8 is given The emitter stage of triode Q1 emitter stage, triode Q2 emitter stage and triode Q3, while exported after the rectification of rectification module 2 Voltage is given to triode Q1 colelctor electrode after resistance R7 and resistance R8 and resistance R1 partial pressures, defeated after the rectification of rectification module 2 The voltage gone out is given to triode Q2 base stage, the voltage exported after the rectification of rectification module 2 after resistance R7 and resistance R8 partial pressures Triode Q3 base stage, triode Q2 colelctor electrode and triode Q3 colelctor electrode are given to after resistance R10 and R23 partial pressure Also the reference voltage of the output of control chip 8 is obtained.

When civil power 1 is that low voltage range inputs, base stage and three poles without sufficiently large control source to triode Q2 Pipe Q3 base stages so that triode Q2 and triode Q3 do not produce biasing, in the case where triode Q2 does not have generation to be biased off so that Triode Q1 is also without biasing is produced, so as to which triode Q1 is turned off.Therefore resistance R7 and resistance R8 and resistance R1 partial pressures are passed through Startup voltage of the voltage less than the Q4 of metal-oxide-semiconductor of the Q4 of metal-oxide-semiconductor grid is given to afterwards.The Q4 of metal-oxide-semiconductor startup voltage both metal-oxide-semiconductor The minimum i.e. voltage setting value of Q4 conductings.Voltage stream after the rectification of rectification module 2 in the case that the Q4 of metal-oxide-semiconductor is closed To metal-oxide-semiconductor Q5 grid, reach metal-oxide-semiconductor Q5 startup voltage, now metal-oxide-semiconductor Q5 is turned on.After metal-oxide-semiconductor Q5 conductings, rectification module 2 Rectification after electric current be flowed into by resistance R13 in LED lamp unit 1, and flow successively through LED lamp unit 2 12 and LED Unit 3 13, while the electric current after the rectification of rectification module 2 is flowed into LED lamp unit 4 14 by diode D1, then successively LED lamp unit 5 15 and LED lamp unit 6 16 are flowed into, so as to which two groups of LED lamp modules 3 form parallel connection, so as in low electricity In the range of pressure there is enough operating voltages to be worked for LED lamp module 3.

When civil power 1 is when high voltage range inputs and is less than 200V, because total resistance of resistance unit two is more than resistance Total resistance of unit one, therefore at this moment without sufficiently large control source to triode Q3 base stages, but meet triode Q2's Turn-on condition, triode Q3 are closed, triode Q2 conductings.When civil power 1 is more than 200V, triode Q2 is held on, triode Q3 is also held on, and when more than 220V, triode Q2 is closed, and triode Q3 is held on.By above-mentioned setting so as to full Foot expands the scope of this drive circuit matching, so as to which practicality is higher.When triode Q2 triode Q3 is simultaneously turned on one section Between avoid occurring when high voltage input, the generation of situation that triode Q3 and triode Q2 are simultaneously closed off.

In at least one conducting of triode Q2 and triode Q3 so that triode Q1 is also switched on, so that metal-oxide-semiconductor Q4 Grid not only obtain control chip after voltage of the voltage after the rectification of rectification module 2 after partial pressure and triode Q1 conductings The reference voltage of 8 outputs, so as to the startup voltage more than metal-oxide-semiconductor Q4, turn on metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q4 conductings drag down metal-oxide-semiconductor Q5 grid voltage, so that metal-oxide-semiconductor Q5 is closed.Therefore after the electric current after the rectification of rectification module 2 is by resistance R13, so as to LED Lamp unit 1 flows to LED lamp unit 6 16 successively, and two groups of LED lamp modules 3 are connected.

Due to the connected mode difference under low voltage range with two groups of LED lamp modules 3 under high voltage range, ensureing The general power that two groups of LED lamp modules 3 add up under different connected modes is all in total rated power, it is necessary to by when increasing in parallel The operating current of LED lamp module 3.

In low voltage range, metal-oxide-semiconductor Q6 is closed, and metal-oxide-semiconductor Q7 and metal-oxide-semiconductor Q8 are opened, and metal-oxide-semiconductor Q8 is opened and dragged down metal-oxide-semiconductor Q12, metal-oxide-semiconductor Q13, metal-oxide-semiconductor Q14, metal-oxide-semiconductor Q15 and metal-oxide-semiconductor Q16 grid voltage, so as to which they are closed.Metal-oxide-semiconductor Q9, metal-oxide-semiconductor Q10, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q17 and metal-oxide-semiconductor Q18 conducting, so as in low voltage range control chip 8 by metal-oxide-semiconductor Q9, Metal-oxide-semiconductor Q10, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q17 and metal-oxide-semiconductor Q18 adjust the operating power of two groups of LED lamp modules 3.Control chip 8 is set Surely there is sampled voltage setting value corresponding to the total rated power of two groups of LED lamp modules 3, in low voltage range due to metal-oxide-semiconductor Q7 Open, thus control chip 8 gather be resistance R18 voltage, control chip 8 according to sampling return voltage output it is different Duty cycle signals control metal-oxide-semiconductor Q9, metal-oxide-semiconductor Q10, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q17 and metal-oxide-semiconductor Q18 are according to corresponding dutycycle work Make, until control chip 8 sample voltage be equal to sampled voltage setting value, be equal to sampled voltage setting value in the voltage of sampling When, control chip 8 controls metal-oxide-semiconductor Q9, metal-oxide-semiconductor Q10, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q17 and metal-oxide-semiconductor Q18 according to current dutycycle Work.

In high voltage range, metal-oxide-semiconductor Q6 is opened, and metal-oxide-semiconductor Q7 and metal-oxide-semiconductor Q8 are closed, and metal-oxide-semiconductor Q9 to metal-oxide-semiconductor Q18 is led It is logical, so as to which in high voltage range, control chip 8 passes through the work work(of metal-oxide-semiconductor Q9 to metal-oxide-semiconductor Q18 two groups of LED lamp modules 3 of regulation Rate.In high voltage range therefore control chip 8 gather be resistance R19 voltage, control chip 8 according to sampling return electricity Pressure exports different duty cycle signals and controls metal-oxide-semiconductor Q9 to metal-oxide-semiconductor Q18 according to corresponding duty cycle, until control chip 8 The voltage of sampling is equal to sampled voltage setting value, and when the voltage of sampling is equal to sampled voltage setting value, control chip 8 controls Metal-oxide-semiconductor Q9 to metal-oxide-semiconductor Q18 is according to current duty cycle.Controlled due to two groups of LED lamp modules 3 in series connection and when in parallel The resistance object that chip 8 samples is different, and the voltage on resistance R19 sampled when in parallel is the voltage on the resistance R18 of sampling Twice, but the operating voltage due to LED lamp unit 1 is as the operating voltage of LED lamp unit 4 14, LED lamp unit 2 12 Operating voltage as the operating voltage of LED lamp unit 5 15, the operating voltage of LED lamp unit 3 13 and LED lamp unit six 16 operating voltage is the same, therefore twice when when reaching identical sampled voltage setting value, electric current reaches series connection during parallel connection, So as to two groups of LED lamp modules 3 by this drive circuit can series connection and it is in parallel when reach identical rated power.

This Width funtion LED lamp drive circuit with emergency function is inputed to also with light-adjusting module 19 by controller 6 The voltage signal of light-adjusting module 19 is different, so as to adjust the brightness of LED lamp module 3.After rectification module 2 exports rectification During voltage, triode Q20 colelctor electrode is given to after resistance R32 and resistance R33 partial pressures, by resistance R34 and resistance Triode Q20 base stage is given to after R35 partial pressures.So that triode Q20 is turned on, and in 6 not input voltage signal of controller, two Group LED lamp module 3 by this drive circuit can series connection and it is in parallel when reach identical rated power.When controller 6 inputs When voltage signal is to resistance R37, now resistance R38 and resistance R39 enters to the voltage for inputing to the light modulation input of control chip 8 Row partial pressure, different according to the voltage that light modulation input inputs, control chip 8 controls two groups of LED lamp modules with different general powers It is operated.In low voltage range control chip 8 by adjust metal-oxide-semiconductor Q9, metal-oxide-semiconductor Q10, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q17 and The operating power of metal-oxide-semiconductor Q18 two groups of LED lamp modules 3 of duty cycle adjustment, in high voltage range, control chip 8 passes through regulation The operating power of metal-oxide-semiconductor Q9 to metal-oxide-semiconductor Q18 two groups of LED lamp modules 3 of regulation.

The scope that the voltage of light-adjusting module 19 is inputed to as preferred controller 6 is 0 to 10V, corresponding to be input to control Voltage on chip 8 arrives 2.5V for 0.When controller 6 inputs 10V voltage signal, the light modulation input input of control chip 8 Voltage be 2.5V, control chip 8 controls two groups of LED lamp modules 3 to be worked according to full rated power.When the light modulation of control chip 8 When the voltage of input input is less than 0.2V, control LED lamp module 3 does not work, and is inputted in the light modulation input of control chip 8 When voltage is more than 0.2V, the voltage of input is bigger, and control chip 8 controls the operating power of LED lamp module 3 bigger, so as to LED Module 3 is brighter.The voltage signal that controller 6 inputs to light-adjusting module 19 can be set, and in the present embodiment, controller 6 exports 10V Voltage to light-adjusting module 19.

When civil power 1 powers off, controller 6 detects that the live wire of civil power 1 does not have voltage output, now controller 6 control after The normal open switch closure of electrical equipment 7, so that battery 17 and two groups of conductings of LED lamp module 3 are powered.Electric current is from LED lamp unit one Flow successively through LED lamp unit two, LED lamp unit three, LED lamp unit four, LED lamp unit five, LED lamp unit six.So that two Group LED lamp module 3 lights carry out emergency lighting.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Although civil power 1, rectification module 2, LED lamp module 3, detection module 4, control module 5, control have more been used herein Device 6 processed, relay 7, control chip 8, sampling unit 9, power adjustment unit 10, LED lamp unit 1, LED lamp unit 2 12, LED lamp unit 3 13, LED lamp unit 4 14, LED lamp unit 5 15, LED lamp unit 6 16, battery 17, full bridge rectifier bridge 18th, the term such as light-adjusting module 19, emergency service module 20, rectifier transformer module 21, but be not precluded from using other terms can Can property.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；It is construed as appointing A kind of what additional limitation is all disagreed with the utility model spirit.

Claims (10)

1. a kind of Width funtion LED lamp drive circuit with emergency function, including for connecting the rectification module (2) of civil power (1) With two groups of LED lamp modules (3), it is characterised in that this drive circuit also includes emergency service module (20), the emergency service mould Block (20) includes being used for the battery (17) for connecting civil power (1), and the emergency service module (20) connects two groups of LED lamp modules (3), the battery (17) of emergency service module (20) can be powered when civil power (1) powers off to two groups of LED lamp modules (3), This drive circuit also includes being used to detect the voltage for judging input in low voltage range still in the detection module of high voltage range (4) and for switching two groups of LED lamp module (3) serial or parallel connections and controlling two groups of LED lamp modules (3) by rated power work Control module (5), rectification module (2) the output end difference connection detection module (4) and control module (5), the detection mould Link control module (5), interior be provided with of the control module (5) switch two groups of LEDs respectively for block (4) and two groups of LED lamp modules (3) The voltage setting value of series connection.

2. the Width funtion LED lamp drive circuit according to claim 1 with emergency function, it is characterised in that described to answer Anxious power supply module (20) also includes controller (6) and relay (7), and the controller (6) has voltage detecting end, the voltage Test side is used to connecting live wire in civil power (1), the output end of the coil connection controller (6) of the relay (7), it is described after The both ends of the normal open switch of electrical equipment (7) connect battery (17) and two groups of LED lamp modules (3) respectively.

3. the Width funtion LED lamp drive circuit according to claim 2 with emergency function, it is characterised in that one group of LED One end of the normal open switch of the current input terminal connection relay (7) of lamp module (3), the other end of relay (7) normal open switch Battery (17) is connected, the current output terminal of this group of LED lamp module (3) connects the electric current input of another group of LED lamp module (3) End.

4. the Width funtion LED lamp drive circuit with emergency function according to claim 1 or 2 or 3, it is characterised in that The detection module (4) includes triode Q1 and triode Q2, control module (5) output reference voltage to triode Q1 and Triode Q2, rectification module (2) export detection voltage to triode Q1 and triode Q2, in low voltage range triode Q1 and Triode Q2 is turned off that two groups of LED lamp modules (3) can be made in parallel；In high voltage range, triode Q1 and triode Q2 are opened Can make the series connection of two groups of LED lamp modules (3), the detection module (4) also include the resistance R1 for partial pressure, resistance R2, resistance R3, Resistance R4, resistance R5 and the resistance unit one at least with a resistance, one end connection rectification module (2) of resistance unit one Output end, the colelctor electrode link control module (5) of the triode Q1 simultaneously passes through the another of resistance R1 connections resistance unit one End, triode Q1 emitter stages link control module (5), triode Q1 base stages are by resistance R2 link control modules (5), and described three Pole pipe Q2 colelctor electrode is passed through resistance R4 connections and controlled by resistance R3 connecting triodes Q1 base stage, triode Q2 emitter stage Module (5), the other end of triode Q2 base stage connection resistance unit one, triode Q2 base stage are also connected with the one of resistance R5 End, resistance R5 other end ground connection, triode Q2 emitter stage are also associated with resistance R6, resistance R6 other end ground connection.

5. the Width funtion LED lamp drive circuit according to claim 4 with emergency function, it is characterised in that the inspection Surveying module (4) also includes triode Q3, resistance R9 and resistance unit two, the base stage connection resistance unit two of the triode Q3 One end and resistance R9 one end, resistance unit two the other end connection rectification module (2) output end, resistance R9's is another End ground connection, triode Q3 emitter stage connecting triode Q2 emitter stage, the colelctor electrode connecting triode Q2 of the triode Q3 Colelctor electrode, the total resistance value of the resistance unit two is more than the total resistance value of resistance unit one.

6. the Width funtion LED lamp drive circuit according to claim 5 with emergency function, it is characterised in that the control Molding block (5) includes metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 and resistance R13, and in low voltage range, detection module (4) is exported and set less than voltage The voltage signal of definite value gives metal-oxide-semiconductor Q4, turns off metal-oxide-semiconductor Q4, and metal-oxide-semiconductor Q5 is opened；In high voltage range, detection module (4) The voltage signal exported more than voltage setting value gives metal-oxide-semiconductor Q4, opens metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5 shut-offs, the metal-oxide-semiconductor Q4's Drain electrode connection metal-oxide-semiconductor Q5 grid, metal-oxide-semiconductor Q4 source electrode are connected with resistance R11, resistance R11 other end ground connection, the MOS Pipe Q4 grid connects resistance R1 and triode Q1 colelctor electrode respectively, and metal-oxide-semiconductor Q4 grid is also associated with resistance R12, resistance R12 other end ground connection, the output end of the drain electrode connection rectification module (2) of the metal-oxide-semiconductor Q5, metal-oxide-semiconductor Q5 source electrode are connected with Diode D1, diode D1 anode connection metal-oxide-semiconductor Q5, negative electrode connect the input of the one of which of two groups of LED lamp modules (3) End, the input of another group of LED lamp module (3) connect two by the output end and output end of resistance R13 connection rectification modules (2) Pole pipe D1 negative electrode, the grid of the metal-oxide-semiconductor Q5 are connected with resistance unit three, and resistance unit three connects the defeated of rectification module (2) Go out end.

7. the Width funtion LED lamp drive circuit according to claim 4 with emergency function, it is characterised in that the control Molding block (5) includes being used for the control chip (8) for adjusting LED lamp module (3) operating power, the detection of the control chip (8) Input is connected with sampling unit (9), and the control output end of the control chip (8) is connected with power adjustment unit (10), and two The output end of group LED lamp module (3) connects the input of power adjustment unit (10) respectively, the power adjustment unit (10) Output end connection sampling unit (9), the power supply side of the control chip (8) are connected with resistance R17, and resistance R17 connections are whole The output end of flow module (2), the power output end difference connecting triode Q1 of the control chip (8) emitter stage, triode Q2 emitter stage and triode Q3 emitter stage, the voltage signal that the control chip (8) sends according to sampling unit (9) are carried out Judge the operating power of control power adjustment unit (10) regulation LED lamp module (3).

8. the Width funtion LED lamp drive circuit according to claim 7 with emergency function, it is characterised in that described to adopt Sample unit (9) includes resistance R18, resistance R19, resistance R20, metal-oxide-semiconductor Q6 and metal-oxide-semiconductor Q7, and in low voltage range, metal-oxide-semiconductor Q6 is closed Close, metal-oxide-semiconductor Q7, which is opened, makes resistance R18 and resistance R20 connect, and it is resistance that the detection input of control chip (8), which samples voltage, Voltage on R18；In high voltage range, metal-oxide-semiconductor Q6 is opened, and metal-oxide-semiconductor Q7 is closed, and the detection input of control chip (8) is adopted Sample also includes metal-oxide-semiconductor Q8 to the voltage that voltage is on resistance R19, the sampling unit (9), and resistance R18 one end connects control respectively The detection input of coremaking piece (8) and resistance R20 one end, the other end connect resistance R19 one end and power adjusting respectively Unit (10), resistance R19 other end ground connection, resistance R20 other end connection metal-oxide-semiconductor Q7 drain electrode, the source of the metal-oxide-semiconductor Q7 Pole is grounded, the power output end of metal-oxide-semiconductor Q7 grid connection control chip (8), between metal-oxide-semiconductor Q7 grid and power output end The drain electrode for being connected with resistance R21 and resistance R22, the metal-oxide-semiconductor Q6 is exported by the power supply of resistance R22 connection control chips (8) End, metal-oxide-semiconductor Q6 grid connection metal-oxide-semiconductor Q4 grid, metal-oxide-semiconductor Q8 grid connection metal-oxide-semiconductor Q7 grid, metal-oxide-semiconductor Q8 leakage Pole connection power adjustment unit (10), the source electrode of the metal-oxide-semiconductor Q8 and metal-oxide-semiconductor Q6 source ground.

9. the Width funtion LED lamp drive circuit according to claim 8 with emergency function, it is characterised in that the work( Rate adjustment unit (10) includes two groups of metal-oxide-semiconductors, and every group of metal-oxide-semiconductor comprises at least a metal-oxide-semiconductor, and every group of LED lamp module (3) is included extremely A few LED lamp unit, a LED lamp unit at least have a LED, and the output end of two groups of LED lamp modules (3) is all connected with One of which metal-oxide-semiconductor, another group of metal-oxide-semiconductor connection one of which LED lamp module (3), every group of LED lamp module (3) are respectively provided with three LED lamp unit, respectively LED lamp unit one (11), LED lamp unit two (12), LED lamp unit three (13), LED lamp unit four (14), LED lamp unit five (15) and LED lamp unit six (16), every group of three LED lamp units series connection are sequentially connected, one group of MOS Pipe has three metal-oxide-semiconductors, respectively metal-oxide-semiconductor Q9, metal-oxide-semiconductor Q10, metal-oxide-semiconductor Q11, and another group of metal-oxide-semiconductor has two metal-oxide-semiconductors, respectively For metal-oxide-semiconductor Q12 and metal-oxide-semiconductor Q13, metal-oxide-semiconductor Q9 drain electrode connection connects LED lamp unit one (11) and LED lamp unit four respectively (14) current output terminal, metal-oxide-semiconductor Q10 drain electrode connection connect LED lamp unit two (12) and LED lamp unit five (15) respectively Current output terminal, metal-oxide-semiconductor Q11 drain electrode connect the electric current output of LED lamp unit three (13) and LED lamp unit six (16) respectively End, the current output terminal of metal-oxide-semiconductor Q12 drain electrode connection LED lamp unit five (15), metal-oxide-semiconductor Q13 drain electrode connection LED lamp unit The current output terminal of six (16), metal-oxide-semiconductor Q9 grid, metal-oxide-semiconductor Q10 grid, metal-oxide-semiconductor Q11 grid, metal-oxide-semiconductor Q12 grid Connect the control output end of control chip (8) respectively with metal-oxide-semiconductor Q13 grid, metal-oxide-semiconductor Q9 source electrode, metal-oxide-semiconductor Q10 source electrode, The source electrode of metal-oxide-semiconductor Q11 source electrode, metal-oxide-semiconductor Q12 source electrode and metal-oxide-semiconductor Q13 connects resistance R19 respectively.

10. the Width funtion LED lamp drive circuit according to claim 7 with emergency function, it is characterised in that this driving Circuit also includes being used for the light-adjusting module (19) for adjusting LED lamp module (3) brightness, and the light-adjusting module (19) connects control chip (8) light modulation input, the light-adjusting module (19) are also connected with the output end of rectification module (2).