CN209375969U

CN209375969U - A kind of composite structure of LED light source mould group and controller

Info

Publication number: CN209375969U
Application number: CN201821462426.9U
Authority: CN
Inventors: 王汉忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-06
Filing date: 2018-09-06
Publication date: 2019-09-10
Anticipated expiration: 2028-09-06

Abstract

The utility model discloses the composite structures of a kind of LED light source mould group and controller, including controller and LED light source mould group, controller includes main control module, level shifting circuit and output interface circuit, output interface circuit is provided with output interface, LED light source mould group includes mould group interface circuit, constant-current drive circuit and load circuit, mould group interface circuit is provided with I/O connection terminal, controller connects the I/O connection terminal of LED light source mould group by output interface with I/O bus mode, so that controller can simultaneously regulate and control the brightness of multiple LED light source mould groups and colour temperature, and controlled LED light source mould group is allowed to keep the synchronization of colour temperature and brightness, it is not limited to the design power of LED light source mould group, quantity and volume, the plug-in I/O terminal connection side of controller and light source module group Formula can allow the mounting, commissioning and maintenance of LED module lamp to become extremely to facilitate, if any light source module group breaks down, not influence the normal work of other mould groups.

Description

A kind of composite structure of LED light source mould group and controller

Technical field

The utility model relates to a kind of illuminator, especially a kind of composite structure of LED light source mould group and controller.

Background technique

In real life, many high-power LED lamps be by multiple LED unit lamp board groups conjunction constitute, meanwhile, for this The LED lamp of class can all require lamps and lanterns itself to have brightness and colour temperature adjusting function, under certain environment occasions, more require Multiple lamps and lanterns can synchronization modulation, colour temperature is consistent with brightness requirement, because of its harsh requirement, so that the scheme of such lamps and lanterns is set Meter can become more difficult, and the cost for also resulting in lamps and lanterns correspondinglys increase, in the patent document of Publication No. CN207251964U Disclose " a kind of LED module lamp ", including controller, LED light source mould group and terminal connecting line, it is characterised in that the controller Input terminal be connected with remote control module, the output end of controller passes through terminal connecting line and connects LED light source mould group, LED light source mould It is connected between group and LED light source mould group by terminal connecting line, intercombination and controller master control light between this kind of light source module group Although the frame mode of source mould group has colour temperature and brightness control function, but its control method is opened by two-way MOS power It closes, directly controls the two-way power bus of LED module and realize the regulation to load current, belong to the control knot of current-control type The general power of structure, multiple light sources mould group is limited to the load capacity of MOS power switch, when designing controller, it is necessary to according to need The maximum power wanted comes mating corresponding power switch and relevant thermal component, higher cost, in addition, light source module group and light source Connection terminal between mould group, connection direction need unanimously, otherwise, will cause the LED color error of mould group, fault-tolerance is low.

Summary of the invention

For overcome the deficiencies in the prior art, the utility model provide a kind of simple structure, cheap, high reliablity, LED module lamp convenient for safeguarding and controller.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of composite structure of LED light source mould group and controller, including controller and LED light source mould group, the controller Including being sequentially connected electrically main control module, level shifting circuit and output interface circuit, the output interface circuit is provided with Several output interfaces, the LED light source mould group have connection mould group interface circuit, constant-current drive circuit including successively electricity and load back Road, the mould group interface circuit are provided with the identical I/O connection terminal of two or more specifications, and the controller passes through institute State the I/O connection terminal that output interface is electrically connected the LED light source mould group with I/O bus mode.

The constant-current drive circuit is provided with constant-current driven chip, and the constant-current driven chip is provided with external dimmer control Interface pin.

The input terminal of the main control module is connected with remote control reception module.

The level shifting circuit include metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, triode Q3, triode Q4, zener diode DZ1, Resistance R2, resistance R3, resistance R4, resistance R5 and resistance R6；The drain electrode of the metal-oxide-semiconductor Q2 divides two-way, passes sequentially through all the way described Resistance R4 and resistance R2 connects the anode of DC power supply, and another way connects the collector of the triode Q4 by the resistance R6；Institute The grid for stating metal-oxide-semiconductor Q2 connects the main control module；The source electrode of the metal-oxide-semiconductor Q2 point three tunnels, connect the main control module all the way, and second Road connects the emitter of the triode Q4, third road ground connection；The node of the triode Q4 and resistance R6 connects the output Interface circuit；The grid of the metal-oxide-semiconductor Q1 connects the main control module；The source electrode of the metal-oxide-semiconductor Q1 is grounded；The metal-oxide-semiconductor Q1's Drain electrode divides two-way, connects the base stage of the triode Q3 all the way, another way meets the resistance R6 and the electricity by the resistance R3 Hinder the node of R4；The emitter of the three adapter tubes Q3 is grounded；The collector of the three adapter tubes Q3 divides two-way, connects the output all the way Interface circuit, another way connect the node of the resistance R3 and the R6 by the resistance R5；The one of the zener diode DZ1 The node of the resistance R2 Yu the resistance R4 are terminated, another way connects the source electrode of the metal-oxide-semiconductor Q2 and the section of the main control module Point.

The mould group interface circuit includes I/O connection terminal 1A and I/O connection terminal 1B；The constant-current drive circuit includes Resistance R14, resistance R15, resistance R16, capacitor C11, resistance RCS11, resistance RCS12, metal-oxide-semiconductor T1 and metal-oxide-semiconductor T2；The load Circuit includes LED light string 1B and LED light string 1A；1 pin of the constant-current driven chip divides two-way, passes through the capacitor all the way C11 ground connection, another way connect 1 pin and I/O connection terminal 1B of the I/O connection terminal 1A after passing through the resistance R14 respectively 1 pin；2 pins of the constant-current driven chip are drawn by connecing the 2 of the I/O connection terminal 1A respectively after the resistance R15 2 pins of foot and I/O connection terminal 1B；3 pins of the constant-current driven chip meet the I/ after passing through the resistance R16 respectively 3 pins of O connection terminal 1A and 3 pins of I/O connection terminal 1B；4 pins of the constant-current driven chip are grounded；The constant current 5 pins of driving chip connect the grid of the metal-oxide-semiconductor T2；6 pins of the constant-current driven chip divide two-way, all the way by described Resistance RCS12 ground connection, another way connect the source electrode of the metal-oxide-semiconductor T2；7 pins of the constant-current driven chip divide two-way, a-road-through The resistance RCS11 ground connection is crossed, another way connects the source electrode of the metal-oxide-semiconductor T1；8 pins of the constant-current driven chip connect described The grid of metal-oxide-semiconductor T1；The drain electrode of the metal-oxide-semiconductor T1 and metal-oxide-semiconductor T1 connects the cathode of the LED light string 1B and LED light string 1A respectively； The anode of the LED light string 1B divides two-way, connects the anode of the LED light string 1A all the way, another way connect the resistance R4 with it is described The node of I/O connection terminal 1A.

The beneficial effects of the utility model are: the controller of the utility model is by output interface with I/O bus mode electricity The I/O connection terminal of LED light source mould group is connected, arbitrary LED light may be implemented using Modular Structure Design in LED light source mould group Source mould group expands, and controller can simultaneously regulate and control the brightness of multiple LED light source mould groups and colour temperature, while making controlled all The colour temperature of LED light source mould group and brightness keep synchronizing, and controller controls LED light source mould group using level signal control mode, Its signal exported is level signal, can be with the minimum biggish load of current-control power, so that LED light source mould group is extendible Quantity increase considerably, and do not need additional installation power driving element, be not limited to LED while capable of greatly saving cost Design power, quantity and the volume of light source module group can allow the mould group of multiple power specification to be used in mixed way, and drive any number of The plug-in I/O terminal connection type of light source module group, controller and light source module group, can allow LED module lamp installation, use and tie up Shield is extremely convenient, if any light source module group breaks down, does not influence the normal work of other mould groups, assembles the terminal of product It works and safeguards more convenient, improve production efficiency, also reduce maintenance cost, in addition, the input terminal of main control module connects There is a remote control reception module, embeddable general various IR remote controllers and 2.4G Digiplex currently on the market, to realize The intelligentized control method of lamps and lanterns has the advantages that simple for structure, cheap, high reliablity and convenient for safeguarding, and LED light is also not present The grafting installation direction problem of source mould group connection terminal, fault-tolerance are high.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the circuit block diagram of the utility model；

Fig. 2 is the circuit diagram of controller；

Fig. 3 is the circuit diagram of controller first embodiment；

Fig. 4 is the circuit diagram of controller second embodiment；

Fig. 5 is the circuit diagram of LED light source mould group first embodiment；

Fig. 6 is the circuit diagram of LED light source mould group second embodiment.

Specific embodiment

Referring to Fig.1, a kind of composite structure of LED light source mould group and controller, including controller and LED light source mould group, institute Stating controller includes the main control module, level shifting circuit and output interface circuit being sequentially connected electrically, the output interface electricity Road is provided with several output interfaces, and the LED light source mould group includes mould group interface circuit, the constant-current drive circuit being sequentially connected electrically And load circuit, the mould group interface circuit are provided with the identical I/O connection terminal of two or more specifications, the control Device is electrically connected the I/O connection terminal of the LED light source mould group by the output interface with I/O bus mode.

Referring to Fig. 2, the input terminal of the main control module is connected with remote control reception module, and the box part A of Fig. 2 turns for level Change circuit, box part B is output interface circuit, the level shifting circuit include metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, triode Q3, Triode Q4, zener diode DZ1, resistance R2, resistance R3, resistance R4, resistance R5 and resistance R6；The drain electrode of the metal-oxide-semiconductor Q2 Divide two-way, passes sequentially through the anode that the resistance R4 and resistance R2 connects DC power supply all the way, another way is connect by the resistance R6 The collector of the triode Q4；The grid of the metal-oxide-semiconductor Q2 connects the main control module；Three tunnels of the source electrode of the metal-oxide-semiconductor Q2 point, The main control module is connect all the way, and the second tunnel connects the emitter of the triode Q4, third road ground connection；The triode Q4 with it is described The node of resistance R6 connects the output interface circuit；The grid of the metal-oxide-semiconductor Q1 connects the main control module；The metal-oxide-semiconductor Q1's Source electrode ground connection；The drain electrode of the metal-oxide-semiconductor Q1 divides two-way, connects the base stage of the triode Q3 all the way, and another way passes through the resistance R3 connects the node of the resistance R6 Yu the resistance R4；The emitter of the three adapter tubes Q3 is grounded；The current collection of the three adapter tubes Q3 Two-way is divided in pole, connects the output interface circuit all the way, and another way connects the section of the resistance R3 and the R6 by the resistance R5 Point；The node of termination the resistance R2 and the resistance R4 of the zener diode DZ1, another way meet the metal-oxide-semiconductor Q2 Source electrode and the main control module node.In Fig. 2, DC+ is the anode of DC power supply, and DC- is the cathode of DC power supply.

Referring to Fig. 3, in controller first embodiment, DC+ is connected to relay contact 1 by fuse F1, and DC- connects It is connected to relay contact 2, between relay contact 1 and contact 2 and is connected to a transient diode TVS1, the purpose is to prevent The moment surge or serious overcompression of DC bus voltage, if power bus due to various reasons caused by surge pulse, can by wink State diode TVS1 absorbs, if bus voltage is caused seriously to exceed normal use value for some reason, transient diode TVS1 is then breakdown and short-circuit at once, so that fuse F1 be forced to fuse, shields to controller, if using suitable pressure Quick resistance substitutes transient diode TVS1, equally can achieve the protective effect of controller.The contact 3 of relay is separately connected defeated The 1st foot of terminal OUT2A and OUT2B out (pin of two output terminals is corresponding in parallel according to foot position number).The contact 4 of relay It is connected respectively to the 4th foot of output terminal OUT2A and OUT2B, constitutes the power supply supply bus of entire LED module.

Remote control reception module M1 is a typical wireless remote control receiving module, and matched is a wireless transmission mould Block, related with circuit here is receiving module, and therefore, the utility model only illustrates the interlock circuit of receiving module.At present In the market, it is connect based on infrared remote control or 2.4G wireless remote control module for the universal radio remote control module of LED illumination product Receive the high voltage direct current input that module all supports 300V substantially；The remote control reception module M1 of the present embodiment itself comes with a DC/ The direct voltage output of DC converter and one group of 12V50ma can use receiving module because the power consumption needed for this controller is smaller Upper included 12V voltage, without being in addition that power supply is arranged in controller.

The electrode input end of high-voltage DC power supply connect respectively remote control reception module M1 DCIN pin and relay J1 the 1st Foot, the GND pin ground connection of remote control reception module M1；The OUT1 pin of remote control reception module M1 is internal DC/DC converter 12V Voltage output, and the working power as relay J1.5th foot of the OUT2 pin contact relay of remote control reception module M1 is used It controls and exports in switching signal, when remote control reception module M1 receives ON instruction, OUT2 exports high level, is connected to OFF instruction When, then export low level.OUT3, OUT4, OUT5, OUT6, OUT7 of remote control reception module M1 is pwm control signal output, root It can be the pulse signal of 1%-99% with output duty cycle, according to the actual needs, if it is defeated that wherein main line can be used according to instruction Out, it can also all use, the present embodiment then uses OUT3 and OUT4 pin to export two-way pwm signal, other pins are vacant.This The remote control module that example uses, pwm signal output level is 3.3V, and the DIM port controlling level of LED light source mould group is 5.5V, it is necessary to use level shifting circuit, promotes the impulse amplitude of 3.3V to corresponding voltage.

The OUT1 foot of the 5th foot connection module of relay J1, the foot voltage are DC+12V, and the 6th foot of relay J1 connects triode The collector of QM1, the base stage of QM1 are connected to the end OUT2 of remote control reception module M1, and the emitter of triode QM1 connects publicly End.When connect remote control reception module M1 receive ON instruction when, the end OUT2 export high level, triode QM1 conducting, collector For low potential, relay J1 coil is powered on, and contact is attracted, and is sent to output by contact 1-3,2-4 when power bus positive and negative electrodes in same 1 foot and 4 feet of terminal OUT2A and OUT2B, by the connection of terminal, bus power source is connected to the I/O of LED light source mould group The respective pins of port.If remote control reception module M1 receives OFF instruction, OUT2 output is low level, and transistor QM1 is cut Only, relay J1 is powered off and is discharged, and power supply is just cut off.The cathode of diode D1 is connected to 5 feet of relay J1, anode connection To 6 feet of relay J1, effect is to absorb relay when power is off, the backward voltage that coil generates, to protect transistor Safety.

The end OUT3 of remote control reception module M1 is connected to the positive input terminal of photoelectrical coupler UM1, the end OUT4 by resistance RM1 The positive input terminal of photoelectrical coupler UM2 is connected to by resistance RM2, the negative input end of photoelectrical coupler UM1 and UM2 are separately connected To common.The positive output end (photoelectric crystal pipe collector) of photoelectrical coupler UM1 be connected to output terminal OUT2A and The 2nd foot of OUT2B, the positive output end of photoelectrical coupler UM2 are connected to the 3rd foot of output terminal OUT2A and OUT2B, photoelectricity coupling The negative output terminal (phototransistor emitter) of clutch UM1 and UM2 are connected respectively to common.Two pole resistance RM3 and pressure stabilizing The end OUT1 of remote control reception module M1 is connected to after pipe DZ series connection, which is+12V, wherein the connection of the one end resistance RM3 OUT1, the other end connect the cathode of zener diode DZ, and the anode of zener diode DZ is connected to publicly.In the present embodiment, The DIM Interface Controller voltage standard of the constant current device of LED light source mould group is 5.6V, therefore, the voltage value of zener diode DZ For 5.6V.The cathode voltage-to-ground of zener diode DZ is 5.6V, is connected to the 3rd of output terminal by resistance RA and RB respectively Foot and the 2nd foot, wherein the one end resistance RA is connected to the cathode of zener diode DZ, the other end be connected to output terminal OUT2A and The 3rd foot of OUT2B, the one end resistance RB are connected to the cathode of DZ, and the other end is connected to the 2nd of output terminal OUT2A and OUT2B Foot, so far, output end are formed the output bus connectivity port of a data and power supply, can drive multiple LED light source moulds Group.

The level conversion working principle of the present embodiment is when pwm signal is low level, and photoelectrical coupler UM1 and UM2 is defeated Enter to hold no electric current, the light emitting diode of input terminal does not export, the transistor cutoff of output end, and collector potential is height Level, when pwm signal is high level, the light emitting diode of the input terminal of photoelectrical coupler UM1 and UM2 has electric current by sending out The transistor of light, output end receives optical signal and is connected, and collector potential is down for low level, therefore, in output terminal The output signal of 2,3 feet of OUT2A and OUT2B is the inversion signal of the pwm signal of remote control reception module M1 output.Remote controler pair When remote control reception module M1 sends brightness control instruction, pwm pulse duty ratio is also changed correspondingly, while reaching to light source module group Regulate and control purpose.

Referring to Fig. 4, in controller second embodiment, for certain LED module lamps for not needing function of wireless remote control, It is then switched by common power and carries out incremental dimming and color-temperature regulating, control chip U1 is the dedicated control chip of LED, model JY2720, pin is compatible with JY2722, and function is that the circulation and superposition work of two-way output are realized by operation power switch SW Make, process are as follows:

1. when the silicon-controlled SW of power supply is first switched on, the output pin A (the 5th foot) of control chip U1 exports high level, Output pin B (the 8th foot) exports low level；

2. turning off the switch SW and reopening SW within 2 seconds, then the 5th foot for controlling chip U1 is converted to low level, 8th foot is converted to high level；

3. continuing to close SW and reopen in 2 seconds, then the 5th foot for controlling chip U1 is converted to high level, the 8th foot It is constant to still maintain high level；So far the alternate operation of three states is completed.

4. continuing to repeat aforesaid operations, the operating status of step 1 is returned to, if stopped after certain single stepping, is Blanket insurance stays the state of the step, if operating time interval is more than 2 seconds, system reset, being defaulted as controller is initially to open Open state.

In the present embodiment, the phase transition electricity that the state of a control signal of control chip U1 output passes through transistor Q1-Q4 Road is delivered on the relevant pins of output terminal OUT1A and OUT1B, so that it may carry out segmented switch control to LED light source mould group System.The connection type phase of the pin connection type of DC power bus and output terminal in this example and controller first embodiment Together, then it is not repeated description.The 1st foot for controlling chip U1 is power input foot, connects one end of resistance R1, resistance R1's is another End is connected to the anode of DC power bus, and to be supplied to the operating voltage VCC1 of U1, capacitor C1 is electrolytic capacitor, and anode draws Foot is connected to the 1st foot of control chip U1, and negative pin is connected to common, and the effect of capacitor C1 is to work as switch SW to close, When the of short duration power-off of bus power source, VCC1 is kept still there are enough operating voltages to provide U1 work in 2 seconds, to maintain to control The program of chip U1 recycles.The point of contact of the collector C and R5 of triode Q3 are exported as the road A signal, are connected to output terminal The 3rd foot of OUT1A and OUT1B.The node of the collector C and R6 of triode Q4 are exported as the road B signal, are connected to output terminal The 2nd foot of OUT1A and OUT1B.

When switch SW is first switched on, when system executes above-mentioned 1st steps flow chart, control the 5th foot of chip U1 output High level, metal-oxide-semiconductor Q1 conducting, triode Q3 cut-off, collector potential are in high level state；Control chip U1 the 8th foot be Low level, metal-oxide-semiconductor Q2 cut-off, triode Q4 conducting, collector are in low level state；

When controller executes above-mentioned 2nd steps flow chart, then the 5th foot for controlling chip U1 is converted to low level, and the 8th foot turns It is changed to high level, metal-oxide-semiconductor Q1 cut-off, triode Q3 conducting, it is in low level state that collector potential, which is pulled low,；And control core The 8th foot of piece U1 is also converted into high level simultaneously, and metal-oxide-semiconductor Q2 is connected, and triode Q4 cut-off, collector potential is in high level State.

When system executes the 3rd steps flow chart, the 5th and the 8th foot for controlling chip U1 exports high level, metal-oxide-semiconductor Q1 simultaneously It is simultaneously turned on Q2, triode Q3 and Q4 end simultaneously, and collector potential is in simultaneously high level state, are accessed to postorder LED light source mould group plays the control of three kinds of states, for example the road LED light string A of LED light source mould group is low color temperature, and the road B is high color temperature, So, when executing process 1, the lamp string of A colour temperature is lighted；When executing process 2, the low color temperature lamp string on the road A is closed, the high color temperature on the road B Lamp string is lighted；When executing process 3, then A and B two-way lamp string is lighted simultaneously, and power is the general power that A adds B, and colour temperature is A Add neutral colour temperature caused by B mixing later.Control chip U1 is a general doubleway output LED segmented constant current driving core Piece is connected to become a step-by-step switch controller in the present embodiment, carries the task of step-by-step movement loop control, and Transistor Q1-Q4 then plays the transformation of high and low level, passes through the manipulation to power switch SW, so that it may to LED light source mould The colour temperature and power of group do simple step-by-step movement regulation.

The constant-current drive circuit is provided with constant-current driven chip, and the constant-current driven chip is provided with external dimmer control Interface pin, the external dimmer control interface pin are DIM standard interface pin.

Fig. 5 and Fig. 6 is the LED light source mould group of two constant current chips with different model, DIM interface standard and I/O The connection method of connection terminal is identical, also corresponds to the output terminal of controller, therefore, the LED light source mould of two kinds of embodiments Group can be matched with the controller of above-mentioned two embodiment and be used, moreover, two kinds of modules can be used in mixed way.

Referring to Fig. 5, the mould group interface circuit includes I/O connection terminal 1A and I/O connection terminal 1B；The constant current driving Circuit includes resistance R14, resistance R15, resistance R16, capacitor C11, resistance RCS11, resistance RCS12, metal-oxide-semiconductor T1 and metal-oxide-semiconductor T2； The load circuit includes LED light string 1B and LED light string 1A；1 pin of the constant-current driven chip divides two-way, passes through institute all the way Capacitor C11 ground connection is stated, another way is connected by connecing 1 pin of the I/O connection terminal 1A after the resistance R14 respectively with I/O 1 pin of terminal 1B；2 pins of the constant-current driven chip meet the I/O connection terminal 1A after passing through the resistance R15 respectively 2 pins and I/O connection terminal 1B 2 pins；3 pins of the constant-current driven chip connect respectively after passing through the resistance R16 3 pins of the I/O connection terminal 1A and 3 pins of I/O connection terminal 1B；4 pins of the constant-current driven chip are grounded；Institute 5 pins for stating constant-current driven chip connect the grid of the metal-oxide-semiconductor T2；6 pins of the constant-current driven chip divide two-way, a-road-through The resistance RCS12 ground connection is crossed, another way connects the source electrode of the metal-oxide-semiconductor T2；7 pins of the constant-current driven chip divide two-way, It is grounded all the way by the resistance RCS11, another way connects the source electrode of the metal-oxide-semiconductor T1；8 pins of the constant-current driven chip connect The grid of the metal-oxide-semiconductor T1；The drain electrode of the metal-oxide-semiconductor T1 and metal-oxide-semiconductor T1 connects the LED light string 1B's and LED light string 1A respectively Cathode；The anode of the LED light string 1B divides two-way, connects the anode of the LED light string 1A all the way, another way connect the resistance R4 with The node of the I/O connection terminal 1A.The present embodiment is the design scheme using external power MOS pipe, I/O terminal 1A's and 1B Connection type is in parallel, the model JY2722 of control chip UB1, the 7th foot energy detection resistance RCS11's of control chip UB1 Voltage controls the output electric current of metal-oxide-semiconductor T1 according to the voltage, by changing the value of resistance RCS11, can set LED light string Electric current, control chip UB1 can automatically track the setting value, achieve the purpose that constant current.

Referring to Fig. 6, the LED light source mould group and above-described embodiment of the embodiment are again provided with two groups of high and low colour temperature LED light string, controls the model JY2822 of chip UB2, and one piece of two-way constant current with built-in mos power drive pipe drives core Piece has external PWM control function and two-way constant current function；Its 1st foot is VCC power input foot, is connected to by resistance R4 The positive terminal of power bus, in addition, being connected with a capacitor C1 between the 1st foot and common ground, effect is, if bus Power supply is Voltage pulsating direct-current supply, then the capacitor can play filter action, and bus power source is stable pure DC power supply, then the electricity Appearance can be omitted.JY2822 the 2nd, the 3rd foot be two-way DIM signal control input pin, and the input signal of the 2nd foot control output It holds OUT2 (the 7th foot), the input signal control output end OUT1 (the 6th foot) of the 3rd foot.6th foot and the 7th foot are power outputs, In, the 6th foot is connected to the cathode of LED light string 2A；7th foot is connected to the cathode of lamp string LED2B, the anode point of LE2A and LED2B It is not connected to the power bus anode of LED light source mould group.The 5th foot and the 8th foot that control chip UB2 are the electricity of two-way output respectively Test side is flowed, common is connected to by resistance RCS21 and RCS22 respectively.When work, positive pole passes through lamp string LED2A Two power output feet (6 feet, 7 feet) that control chip UB2 is connected with LED2B, by internal MOS power tube, are connected to control The CSA (5 foot) and CDB (8 foot) pin of chip UB2, wherein 5 feet of control chip UB2 are by RCS21 connection common, and the 8 feet are by RCS22 connection common, and so as to form the current loop of two paths of LED lamp string, electric current is when passing through RCS21, meeting A voltage is generated, this voltage is directly proportional with the size of electric current and resistance, and control chip UB2 can be according to detected electricity Pressure regulates and controls output electric current, changes the value of RCS21 and RCS22, so that it may the output electric current of setting control chip UB2, the The function and working principle of 8 feet are identical as the 5th foot.The the 2nd and the 3rd foot of control chip UB2 is that PWM and linear voltage dim foot, Referred to as DIM, as above-mentioned external dimmer control interface pin, function are the 6 that control chip UB2 is controlled according to voltage With the output of the 7th foot, if input signal is pwm pulse, output is closed when low level, and when high level opens, and passes through pulse The regulation of duty ratio then can control its output power.Another function of DIM pin is linear voltage light modulation, works as input When the d. c. voltage signal of one 0~5.5v, control chip UB2 can be adjusted output electric current according to the amplitude size of the voltage Control, so, pwm signal not only can be used and carry out brightness adjustment control, other direct current signals is also suitble to regulate and control it.Control The the 2nd and the 3rd foot of chip UB2 passes through the 2nd and the 3rd foot that resistance R5 and R6 are connected to I/O connection terminal respectively, is come from receiving The corresponding control signal of controller.DIM pin has very high input impedance, and the electric current of consumption is less than 5ua, therefore controller Output do not need power promotion, theoretically, the output level of a small signal transistor can push numerous LED light source Mould group, therefore, the controller of present design is than its cost of traditional control program by sharp fall.

In actual application, as long as using its interface standard of the LED light source mould group of current constant control chip of different model It is identical, it compatible with controller can use, such as embodiment of above two LED light source mould group, although control chip used Difference, but its interface standard is the same, therefore, may be equally applicable for the controller of this module lamp, moreover, in same module lamp In, two kinds of LED light source mould groups can be used in mixed way.

The power system of the utility model is DC DC power supply, if necessary to be used for mains supply (AC power supplies), then It needs to install additional relevant rectification circuit, AC power supplies is converted into DC power supply, since rectification circuit is a kind of common general technology, Then without describing in detail, and internal LED light source mould group uses Modular Structure Design, and arbitrary mould group may be implemented and expand It fills, controller can simultaneously regulate and control the brightness of multiple LED light source mould groups and colour temperature, can make controlled all LED lights simultaneously The colour temperature of source mould group and brightness keep synchronizing, and are not limited to the design power, quantity and volume of LED light source mould group, can allow more The module of kind power requirements is used in mixed way, and drives any number of light source module group, the controller and light source module group using plug Formulas I/O terminal connection type connection, mounting, commissioning and maintenance is extremely convenient, in use process backward, if any light source die Group breaks down, and does not influence the normal work of other mould groups, and the grafting installation side of LED light source mould group connection terminal is also not present To problem, fault-tolerance is high

Controller controls multiple LED light source mould groups using level signal control mode, and the signal of output is level signal, energy It with the minimum biggish load of current-control power, does not need additionally to assemble power drive device, to greatly save cost； The level shifting circuit of controller, by level conversion the output signal level of all kinds of remote control reception modules can be converted to The level signal that LED light source mould group matches.Therefore, embeddable wireless remote control module any kind of in the market, it is such as infrared distant Module, 2.4G wireless remote control module etc. are controlled, to realize the intelligentized control method of lamps and lanterns.

Above embodiment cannot limit the protection scope of the invention, and the personnel of professional skill field are not departing from In the case where the invention general idea, the impartial modification and variation done still fall within the range that the invention is covered Within.

Claims

1. a kind of composite structure of LED light source mould group and controller, it is characterised in that the controller includes being sequentially connected electrically Main control module, level shifting circuit and output interface circuit, the output interface circuit is provided with several output interfaces, described LED light source mould group includes mould group interface circuit, constant-current drive circuit and load circuit, and there are two the mould group interface circuit settings Or the identical I/O connection terminal of two or more specification, the controller is by the output interface with the electrical connection of I/O bus mode The I/O connection terminal of the LED light source mould group.

2. the composite structure of LED light source mould group and controller according to claim 1, it is characterised in that the constant current driving Circuit is provided with constant-current driven chip, and the constant-current driven chip is provided with external dimmer control interface pin.

3. the composite structure of LED light source mould group and controller according to claim 1, it is characterised in that the main control module Input terminal be connected with remote control reception module.

4. the composite structure of LED light source mould group and controller according to claim 1, it is characterised in that the level conversion Circuit include metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, triode Q3, triode Q4, zener diode DZ1, resistance R2, resistance R3, resistance R4, Resistance R5 and resistance R6；The drain electrode of the metal-oxide-semiconductor Q2 divides two-way, passes sequentially through the resistance R4 all the way and resistance R2 connects direct current The anode in source, another way connect the collector of the triode Q4 by the resistance R6；The grid of the metal-oxide-semiconductor Q2 meets the master Control module；Three tunnels of the source electrode of the metal-oxide-semiconductor Q2 point, connect the main control module, the second tunnel connects the transmitting of the triode Q4 all the way Pole, third road ground connection；The node of the triode Q4 and resistance R6 connects the output interface circuit；The metal-oxide-semiconductor Q1's Grid connects the main control module；The source electrode of the metal-oxide-semiconductor Q1 is grounded；The drain electrode of the metal-oxide-semiconductor Q1 divides two-way, connects described three all the way The base stage of pole pipe Q3, another way connect the node of the resistance R6 Yu the resistance R4 by the resistance R3；The triode Q3 Emitter ground connection；The collector of the triode Q3 divides two-way, connects the output interface circuit all the way, and another way passes through described Resistance R5 connects the node of the resistance R3 and the R6；A termination resistance R2 of the zener diode DZ1 and the electricity The node of R4 is hindered, another way connects the source electrode of the metal-oxide-semiconductor Q2 and the node of the main control module.

5. the composite structure of LED light source mould group and controller according to claim 2, it is characterised in that the mould group interface Circuit includes I/O connection terminal 1A and I/O connection terminal 1B；The constant-current drive circuit includes resistance R14, resistance R15, resistance R16, capacitor C11, resistance RCS11, resistance RCS12, metal-oxide-semiconductor T1 and metal-oxide-semiconductor T2；The load circuit include LED light string 1B and LED light string 1A；1 pin of the constant-current driven chip divides two-way, is grounded all the way by the capacitor C11, and another way passes through institute 1 pin of the I/O connection terminal 1A and 1 pin of I/O connection terminal 1B are connect respectively after stating resistance R14；The constant current driving 2 pins of chip pass through the resistance R15 after connect respectively the I/O connection terminal 1A 2 pins and I/O connection terminal 1B 2 Pin；3 pins of the constant-current driven chip pass through the resistance R16 after connect respectively the I/O connection terminal 1A 3 pins and 3 pins of I/O connection terminal 1B；4 pins of the constant-current driven chip are grounded；5 pins of the constant-current driven chip meet institute State the grid of metal-oxide-semiconductor T2；6 pins of the constant-current driven chip divide two-way, are grounded all the way by the resistance RCS12, another Road connects the source electrode of the metal-oxide-semiconductor T2；7 pins of the constant-current driven chip divide two-way, are connect all the way by the resistance RCS11 Ground, another way connect the source electrode of the metal-oxide-semiconductor T1；8 pins of the constant-current driven chip connect the grid of the metal-oxide-semiconductor T1；It is described The drain electrode of metal-oxide-semiconductor T1 and metal-oxide-semiconductor T1 connects the cathode of the LED light string 1B and LED light string 1A respectively；The LED light string 1B is just Two-way is divided in pole, connects the anode of the LED light string 1A all the way, and another way connects the section of the resistance R4 Yu the I/O connection terminal 1A Point.