CN202340339U - LED (light-emitting diode) illumination power supply and drive control system - Google Patents
LED (light-emitting diode) illumination power supply and drive control system Download PDFInfo
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- CN202340339U CN202340339U CN2011205206587U CN201120520658U CN202340339U CN 202340339 U CN202340339 U CN 202340339U CN 2011205206587 U CN2011205206587 U CN 2011205206587U CN 201120520658 U CN201120520658 U CN 201120520658U CN 202340339 U CN202340339 U CN 202340339U
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Abstract
The utility model relates to an LED (light-emitting diode) illumination power supply and drive control system, which comprises a switch power supply, LED lamps and LED control switches, wherein the switch power supply is arranged inside a distribution box or outside the distribution box; the alternating current input end of the switch power supply is connected with a 220V alternating current power supply through a breaker in the distribution box; the direct current safety voltage output end of the switch power supply is connected with main circuits leading to various rooms; and LED control switches of various rooms and the LED lamps in the rooms are connected to DC+ and DC- of the main circuit in series. By using the LED illumination power supply and drive control system provided by the utility model, a potential safety hazard problem and a problem that in the prior art, because the 220V alternating current directly enters into the LED lamp, the drive power supply and the LED lamp are centralized so that heat dissipation is difficult are solved; and moreover, the cost of the LED lamps is lowered. An LED drive controller can perform diming control to the LED lamp on the existing arranged illuminating circuit, thus the popularization of LED illumination under the existing conditions can be prompted.
Description
Technical field
The utility model relates to a kind of illuminalive power-supply control system, particularly relates to a kind of LED illuminalive power-supply and driving control system.
Background technology
Prior art LED illuminalive power-supply and driving control system are as shown in Figure 1, main breaker 10, illumination are installed with circuit breaker 20 and zero terminal row 30 in the distribution box, and the LED lamp 5a and the general control switch 6a of on-chip power is installed in each room.The live wire L of 220V AC power is connected with the input of main breaker 10 with zero line N; The live wire output L end of main breaker 10 is connected with the live wire input L of illumination with circuit breaker 20; Illumination is connected with the live wire L of illumination backbone with the live wire output L end of circuit breaker 20, and the zero line output N of main breaker 10 is connected with zero terminal row 30, and the zero line N of backbone is connected with zero terminal row 30; Backbone L and backbone N lead to each room; The end of general control switch 6a in the room is connected with the live wire L that leads to this room, and its other end is connected with the end of the LED lamp 5a of the on-chip power of being controlled, and the other end of LED lamp 5a is connected with the zero line N that leads to this room.Fig. 2 is the LED illuminalive power-supply and the driving control system theory diagram of many illumination basic routing lines of prior art, has two or more illuminations to use circuit breaker in the distribution box, controls two or more basic routing line respectively, has only drawn two among the figure.
Because the illuminating 220V alternating current of LED directly is loaded on the LED lamp 5a through general control switch 6a by basic routing line; The heat that heat that the built-in power supply of LED lamp sends and LED device itself send is superimposed and is difficult in time distribute; This can quicken led light source and component aging reduces the life-span; Especially LED bulb lamp and LED fluorescent lamp though profile helps being had the public of tradition consciousness to accept with traditional incandescent lamp is similar with fluorescent lamp, have been crowded with various parts in the limited space; Heat can not in time distribute very effectively and can cause fault to increase; Quickened the light decay of LED, reduced the life-span, this also becomes the big obstacle that LED popularizes.
As everyone knows; LED is a kind of semiconductor device that needs low-voltage DC supply, just must adopt the AC/DC supply convertor in order to be applied in lighting field, is provided with AC/DC power converting circuit and constant-current drive circuit in the power supply that the LED lamp is commonly used at present; Dc output end can directly connect LED lamp string; Ac input end is connected with the 220V AC power, and fail safe and traditional electricity-saving lamp, fluorescent lamp and incandescent lamp are basic identical, adopts the fail safe of LED lamp load of non-insulating power supply also lower than conventional lamp; The danger of electric leakage takes place more easily, and this also is internal and international safety tissue has requirements at the higher level to the LED light fixture of non-insulating power supply a reason.Lean on the led light source of dc low-voltage power supply still to be faced with potential safety hazard, this is problem and drawback that prior art exists.
LED has the advantage of tunable optical; Adopt the mode of PWM can realize stepless dimming; Light modulation is steadily reliable; But prior art can not realize the PWM light modulation owing to adopt alternating current 220V directly to get into the LED lamp in existing single live wire loop, can only adopt the mode of remote control or the mode of employing SCR AC copped wave light modulation.The remote control light modulating cost is high, can not on former switch on wall, realize, what the random placement of remote controller occurred temporarily loses also and can make troubles to use.The light modulation of SCR AC chopped mode is to be formed by connecting with AC power after being connected with the LED lamp dimmer; Be equipped with in the LED lamp can with supporting AC/DC translation circuit and the drive circuit of this dimmer; Change the copped wave angle of output AC electricity through the rotary dimmer knob, extract the copped wave angle information that is changed by the AC/DC translation circuit of LED lamp and drive circuit and control the LED lamp current and realize light modulation.The advantage of SCR AC chopper-type dimming mode is directly to use the wall type dimmer of prior art directly to control the open and close and the light modulation of LED lamp; The cost of having removed the trouble of rewiring from and having brought thus improves; But in actual the use AC/DC conversion drive circuit can appear and the dimmer parameter matching is bad or Disturbance in Power Net causes the flicker of LED lamp; Problems such as efficient and power factor are low, and existence and above-mentioned same heat dissipation problem.
Summary of the invention
The utility model technical issues that need to address provide a kind of LED illuminalive power-supply and driving control system; Solve 220V alternating current in the prior art and directly get into the concentrated problem and the security hidden trouble that dispel the heat of being difficult to together of driving power that the LED lamp brings and LED lamp; Solve existing LED driving governor can not directly carry out light modulation to the LED lamp on the existing illuminating line that has laid problem, solve the high-leveled and difficult problem of LED lamp cost to popularize.
A kind of LED illuminalive power-supply and driving control system according to the above-mentioned purpose invention is characterized in that: comprise Switching Power Supply, LED lamp and LED control switch; Said Switching Power Supply be installed in the distribution box or distribution box outside; Said LED lamp is installed in each room; The ac input end of Switching Power Supply is connected with the 220V AC power through the circuit breaker in the distribution box; The direct current safe voltage output of Switching Power Supply is connected with the basic routing line that leads to each room, and the LED control switch and the LED lamp in the room in each room are connected in series on the DC+ and DC-of basic routing line.
Further, said LED lamp comprises the LED constant-current circuit of connecting with LED.
In a specific embodiment, said LED control switch is the common wall switch.
In another specific embodiment, said LED control switch is the LED driving governor, comprises switch power taking unit with switching circuit and the control unit with microcontroller; Microcontroller comprises pwm signal output, information input terminal, power input, and the pwm signal output connects the signal input part of said switch power taking unit, and power input connects the power output end of switch power taking unit; One end of switch power taking unit is connected with an end of LED lamp, and the other end of switch power taking unit is connected with an end of DC power supply, and the other end of DC power supply is connected with the other end of LED lamp.
A further embodiment, the switching circuit in the switch power taking unit comprises at least one FET; Switch power taking unit also comprises power-supply circuit and voltage stabilizing circuit; Said power-supply circuit comprises diode, electrochemical capacitor and the FET shared with switching circuit; The drain electrode of said FET is connected with the negative pole of LED lamp as an end of switch power taking unit; The source electrode of FET is connected with the negative pole of DC power supply as the other end of switch power taking unit; The grid of FET is connected with the signal output part of control unit or the signal output part through the microcontroller in resistance and the control unit is connected, and the positive pole of LED lamp is connected with the positive pole of DC power supply; The anode of said diode is connected with the drain electrode of FET; The negative electrode of diode is connected with the input anodal and said voltage stabilizing circuit of said electrochemical capacitor; The output of voltage stabilizing circuit is connected with the power input of the power input of control unit and microcontroller, the ground end of the source electrode of FET, the negative pole of electrochemical capacitor, voltage stabilizing circuit and the ground end of control unit be connected publicly.
Further among another embodiment, the switching circuit in the switch power taking unit comprises at least one FET, first resistance, second resistance, the 3rd resistance, triode; Switch power taking unit also comprises power-supply circuit and voltage stabilizing circuit; Said power-supply circuit comprises diode, electrochemical capacitor and the FET shared with switching circuit; The drain electrode of said FET is connected with the positive pole of said LED lamp as an end of switch power taking unit; The source electrode of FET is connected with the positive pole of DC power supply as the other end of switch power taking unit; The negative pole of LED lamp is connected with the negative pole of DC power supply; The grid of FET is connected with an end of said first resistance; The other end of first resistance is connected with the source electrode of FET, and an end of said second resistance is connected with the grid of FET, and the other end of second resistance is connected with the collector electrode of said triode; The base stage of triode is connected with an end of the 3rd resistance; The other end of the 3rd resistance is connected with the signal output part of microcontroller in the control unit, and the negative electrode of said diode is connected with the drain electrode of FET, and the positive pole of said electrochemical capacitor is connected with the input of the source electrode of FET and said voltage stabilizing circuit; The output of voltage stabilizing circuit is connected with the power input of the power input of control unit and microcontroller, the ground end of the negative pole of the emitter of triode, the anode of diode, electrochemical capacitor, the ground end of voltage stabilizing circuit and control unit be connected publicly.
All LED control switchs above-mentioned are among the embodiment of LED driving governor, parallel connection one resistance at said LED lamp two ends; The resistance of said resistance is simplified by R≤(U-Vc-Vd)/Is and is calculated; U is the input voltage of DC power supply; Vc can guarantee the minimum voltage of operate as normal for the voltage stabilizing circuit input; Vd is the tube voltage drop of diode, and Is is the maximum current of control unit and voltage stabilizing circuit consumption and the electric current sum of loss when work.
At the LED control switch is among the embodiment of LED driving governor; Said control unit also comprises MIM message input module; Its input pattern is the button input pattern or touches input pattern or the induction input pattern that the signal output part of MIM message input module is connected with the signal input part of microcontroller.
At the LED control switch is among the embodiment of LED driving governor, and said control unit also comprises wireless or the infrared remote control receiving circuit, and its signal output part is connected with the signal input part of microcontroller, and its power end is connected with the power output end of voltage stabilizing circuit.
At the LED control switch is among the embodiment of LED driving governor, and said control unit also comprises information port or information port and bus transceiver, can receive or send the information from bus system.
Because the LED illuminalive power-supply of the utility model and the LED power supply in the driving control system is installed in the distribution box or distribution box outer and the safe direct current of output is connected with the basic routing line that throws light on; Power supply separates with the LED lamp fully, and several on the basic routing line of illumination can use a high power switching power supply to tens LED lamps, and present switch power technology is power big more efficient is high more; The unit power cost is low more; So both reduce the cost of LED lamp, also reduced the total cost of illuminator simultaneously, improved the efficient of power supply; Reduced the heat radiation concentration problem that former LED lamp built-in power causes again; The low-voltage direct of safety is connected electrically in LED lamp and the control switch that is transferred on the basic routing line each room in, has thoroughly solved the potential safety hazard of getting an electric shock, can be in existing illuminating line realization and needn't change former wire structures; The LED driving governor directly substitutes the common wall switch can realize the PWM brightness adjustment control to the LED lamp; Both made things convenient for use, energy-conserving and environment-protective have more again promoted LED illumination popularizing under existence conditions.
Description of drawings
Fig. 1 is a prior art LED driving control system theory diagram.
Fig. 2 is many basic routing line theory diagrams of prior art LED driving control system.
Fig. 3 is that the utility model control switch is the LED driving control system theory diagram of regular tap.
Fig. 4 is that the utility model control switch is the LED driving control system theory diagram of LED driving governor.
Fig. 5 is the LED driving control system theory diagram of many basic routing lines of the utility model.
Fig. 6 is the LED driving control system theory diagram of the utility model LED power pack outside distribution box.
Fig. 7 is the LED lamp schematic diagram of the utility model by regular tap control.
Fig. 8 is the utility model LED driving governor theory diagram.
Fig. 9 is the LED lamp schematic diagram of the utility model by the control of LED driving governor.
Figure 10 is the LED driving governor theory diagram that the utility model uses N channel field-effect pipe.
Figure 11 is the LED driving governor theory diagram that the utility model uses the P-channel field-effect transistor (PEFT) pipe.
Figure 12 is that the utility model uses the multiloop LED driving governor of N channel field-effect management and control system theory diagram.
Figure 13 is that the utility model uses the multiloop LED driving governor of P-channel field-effect transistor (PEFT) management and control system theory diagram.
Figure 14 is the wiring diagram that the utility model uses N channel field-effect pipe LED driving governor.
Figure 15 is the wiring diagram that the utility model uses P-channel field-effect transistor (PEFT) pipe LED driving governor.
Figure 16 is the oscillogram of the utility model LED driving governor pwm signal, FET D-S terminal voltage, power taking electric current and power taking voltage when closing the LED lamp.
The oscillogram of pwm signal, FET D-S terminal voltage, power taking electric current and power taking voltage when Figure 17 is the utility model LED driving governor unlatching LED lamp.
Figure 18 is the oscillogram of the utility model LED driving governor pwm signal, FET D-S terminal voltage, power taking electric current and power taking voltage during to the light modulation of LED lamp.
Figure 19 the utility model LED driving governor is turned on light and is turned off the light flow chart.
Figure 20 the utility model LED driving governor light modulation flow chart.
Embodiment
Below in conjunction with accompanying drawing and execution mode the utility model is done further description.
The control switch of the utility model be the embodiment of regular tap referring to Fig. 3, comprise Switching Power Supply 40, have the LED lamp 50 and the LED control switch 6a of constant-current circuit; Said Switching Power Supply 40 be installed in the distribution box or distribution box outside; Said LED lamp 50 is installed in each room; The live wire input L of Switching Power Supply 40 is connected with the live wire L of 220V AC power with circuit breaker 20 and main breaker 10 through the illumination in the distribution box; The zero line input N of Switching Power Supply 40 is connected with zero terminal row 30; The direct current safe voltage output of Switching Power Supply 40+with-DC+ with the basic routing line that leads to each room is connected with DC-respectively, and the LED control switch 6a and the LED lamp 50 in the room in each room are connected in series on the DC+ and DC-of basic routing line.
The control switch of the utility model is that the embodiment of LED driving governor is as shown in Figure 4, comprise Switching Power Supply 40, have the LED lamp 50 of constant-current circuit ' and LED control switch 6a; Said Switching Power Supply 40 be installed in the distribution box or distribution box outside; Said LED lamp 50 ' be installed in each room; The live wire input L of Switching Power Supply 40 is connected with the live wire L of 220V AC power with circuit breaker 20 and main breaker 10 through the illumination in the distribution box; The zero line input N of Switching Power Supply 40 is connected with zero terminal row 30; The dc output end of Switching Power Supply 40+with-DC+ with the basic routing line that leads to each room is connected with DC-respectively, the LED control switch 6a in each room and the LED lamp 50 in the room ' the be connected in series in DC+ and the DC-of basic routing line.
The embodiment of many basic routing lines of the utility model is as shown in Figure 5, and different is has two or more (only drawing among the figure two) basic routing line to connect two or more Switching Power Supplies and illumination separately respectively with on the circuit breaker with Fig. 3 or Fig. 4.
The LED driving control system theory diagram of the utility model Switching Power Supply 40 outside distribution box is as shown in Figure 6; Because the problem of insufficient space in the distribution box might appear in the Switching Power Supply 40 of in the distribution box of existing conventional illumination, installing and using the utility model; Therefore, Switching Power Supply 40 need be installed outside distribution box.Can the LED power pack that Switching Power Supply 40 is housed be installed in by the distribution box; Live wire output L with circuit breaker 20 is connected with the illumination in the live wire input L of Switching Power Supply 40 and the distribution box; The zero line input N of Switching Power Supply 40 arranges 30 with the zero terminal in the distribution box and is connected; The backbone L that original and illumination are connected with the live wire output L of circuit breaker 20 is connected to the dc output end of Switching Power Supply 40+become backbone DC+, more original and zero terminal is arranged the dc output end that the 30 backbone N that be connected are connected to Switching Power Supply 40-become backbone DC-.Because the Office Area of some office building is a big room; Several illuminations are arranged with circuit breaker 20 in the room; Each circuit breaker 20 has been with a lot of illuminating lamps again; This just need according to every circuit the gross power of the LED light fixture that will drive whether calculate the line energizing flow amount enough, if not enough, then need connect two or more Switching Power Supplies 40 with the output of circuit breaker 20 an illumination; Close power supply 40 and can be installed in suitable place, on the backbone that each Switching Power Supply 40 is connected respectively to separately to be driven.Said method is not only applicable to embodiment shown in Figure 6, is applicable to that also Fig. 3 is to embodiment shown in Figure 5.
Referring to Fig. 8 and Figure 10, the LED driving governor 60 of the utility model comprises switch power taking unit 62 with switching circuit 62b and the control unit 61 with microcontroller 61a;
One end of switch power taking unit 62 and LED lamp 50 ' an end be connected, the other end of switch power taking unit 62 is connected with an end of DC power supply, the other end of DC power supply and LED lamp 50 ' the other end be connected.
The utility model is as shown in Figure 9 by the LED lamp embodiment of LED driving governor control; Different is in the two ends of LED lamp parallel connection one resistance R 51 with LED lamp 50 by the control of general control switch shown in Figure 7; Its purpose one is electric power to be provided for switch power taking unit 62 and control unit 61 at LED lamp 50 ' when closing, the 2nd, to by-pass shunt of LED, make the major part resistance R 51 of flowing through; The electric current of LED of flowing through is extremely small, prevents that LED from little flashing occurring and resembling.
The resistance R of resistance R 51≤(U-Vc-Vd)/Is; U is the input voltage of DC power supply; Vc is the minimum voltage that voltage stabilizing circuit IC621 input can be guaranteed operate as normal; Vd is a diode D621 tube voltage drop, and Is is the maximum current of control unit 61 and voltage stabilizing circuit IC621 consumption and the electric current sum of loss when work, and the capacity loss of electrochemical capacitor C621 and C622 and so on can be ignored.For example, if Is is 700 μ A, U=20V, Vc=5V, Vd=0.7V, R≤(U-Vc-Vd)/Is=(20-5-0.7)/0.0007=20428.6 Ω then, R ≈ 20k.The resistance of resistance 20k is merely 0.002W with the parallelly connected energy that consumes of LED lamp; If by the LED lamp is that 6W calculates;, the LED lamp only accounts for 0.3/1000 loss during lighting; This and the electric power that in existing circuit, can adopt the utility model and rapid replace incandescent and electricity-saving lamp to practice thrift can be ignored.Moreover in multiloop use occasion, parallel resistance on major loop LED lamp only, the LED lamp of its cocircuit can be not also, and this just more can ignore this and small loss thereof.
The utility model uses the LED driving governor embodiment of N channel field-effect pipe shown in figure 10, and the switching circuit 62a in the switch power taking unit 62 comprises at least one N channel field-effect pipe Q621; Switch power taking unit 62 also comprises power-supply circuit 62b and voltage stabilizing circuit IC621; Said power-supply circuit 62b comprises diode D621, electrochemical capacitor C621 and the N channel field-effect pipe Q621 shared with switching circuit 62a; The drain electrode of said N channel field-effect pipe Q621 as an end of switch power taking unit 62 and LED lamp 50 ' negative pole be connected; The source electrode of N channel field-effect pipe Q621 is connected with the negative pole of DC power supply as the other end of switch power taking unit 62; The grid of N channel field-effect pipe Q621 is connected with the signal output part P of microcontroller 61a or is connected with the signal output part P of microcontroller 61a through resistance, LED lamp 50 ' positive pole be connected with the positive pole of DC power supply; The anode of said diode D621 is connected with the drain electrode of FET Q621; The negative electrode of diode D621 is connected with the input anodal and said voltage stabilizing circuit IC621 of said electrochemical capacitor C621; The output of voltage stabilizing circuit IC621 is connected with the power input of control unit 61 and the power input Vdd of microcontroller 61a, the ground end of the negative pole of the source electrode of FET Q621, electrochemical capacitor C621, the ground end of voltage stabilizing circuit IC621 and microcontroller 61a be connected publicly.
The utility model uses the LED driving governor embodiment of P-channel field-effect transistor (PEFT) pipe shown in figure 11, and the switching circuit 62a in the switch power taking unit 62 comprises at least one P-channel field-effect transistor (PEFT) pipe Q621, first resistance R 621, second resistance R 622, the 3rd resistance R 623, triode Q622; Switch power taking unit 62 also comprises power-supply circuit 62b and voltage stabilizing circuit IC621; Said power-supply circuit 62b comprises diode D621, electrochemical capacitor C621 and the FET Q621 shared with switching circuit 62a; The drain electrode of said P-channel field-effect transistor (PEFT) pipe as an end of switch power taking unit 62 and said LED lamp 50 ' positive pole be connected; The source electrode of P-channel field-effect transistor (PEFT) pipe is connected with the positive pole of DC power supply as the other end of switch power taking unit 62; LED lamp 50 ' negative pole be connected with the negative pole of DC power supply; The grid of P-channel field-effect transistor (PEFT) pipe is connected with an end of said first resistance R 621; The other end of first resistance R 621 is connected with the source electrode of P-channel field-effect transistor (PEFT) pipe; One end of said second resistance R 622 is connected with the grid of P-channel field-effect transistor (PEFT) pipe; The other end of second resistance R 622 is connected with the collector electrode of said triode Q622, and the base stage of triode Q622 is connected with an end of the 3rd resistance R 623, and the other end of the 3rd resistance R 623 is connected with the signal output part P of microcontroller 61a in the control unit 61; The negative electrode of said diode D621 is connected with the drain electrode of P-channel field-effect transistor (PEFT) pipe; The positive pole of said electrochemical capacitor C621 is connected with the source electrode of P-channel field-effect transistor (PEFT) pipe and the input of said voltage stabilizing circuit IC621, and the output of voltage stabilizing circuit IC621 is connected with the power input of control unit 61 and the power input Vdd of microcontroller 61a, the ground end of the anode of the emitter of triode Q622, diode D621, the negative pole of electrochemical capacitor C621, voltage stabilizing circuit IC621 and the ground end of microcontroller 61a be connected publicly.The also available N channel field-effect of triode Q622 pipe in the present embodiment substitutes.
The utility model uses the LED driving governor embodiment of N channel field-effect pipe shown in figure 12; Signal output part P1, P2 and the P3 of microcontroller 61a is connected the grid of N channel field-effect pipe Q621, N channel field-effect pipe Q622 and the N channel field-effect pipe Q623 in control LED lamp loop respectively; FET Q622 and Q623 with LED lamp loop saved the diode D621 that uses like the power taking in the major loop, also can reliable and stable work.
The also removable three paths of independent control circuit that is divided into of the foregoing description; By three control units FET is separately controlled respectively; The public connection of ground end, it is effective that microcontroller that this adopts for control unit or integrated circuit only have the circuit of a pwm signal output interface.
The utility model uses the LED driving governor embodiment of P-channel field-effect transistor (PEFT) pipe shown in figure 13; Signal output part P1, P2 and the P3 of microcontroller 61a is connected the base stage of triode Q22, Q24 and the Q26 in control LED lamp loop respectively through resistance R 623, R626 and R629; FET Q623 and Q625 with LED lamp loop saved the diode D621 that uses like the power taking in the major loop, also can reliable and stable work.
The also removable three paths of independent control circuit that is divided into of the foregoing description; By three control units FET is separately controlled respectively, this also is effective for the framework that the microcontroller or the integrated circuit of control unit employing only have a pwm signal output interface.
Figure 14 has provided the wiring diagram of the utility model use N channel field-effect pipe LED driving governor; For having the LED driving governor 60 of two-way control end at least; The common port of controller is fit to be connected with backbone DC-, the LED lamp 50 that each drive end connected ' be fit to be connected with backbone DC+.
Figure 15 has provided the wiring diagram of the utility model use P-channel field-effect transistor (PEFT) pipe LED driving governor; For having the LED driving governor 60 of two-way control end at least; The common port of controller is fit to be connected with backbone DC+, the LED lamp 50 that each drive end connected ' be fit to be connected DC-with backbone.
Which kind of wire laying mode no matter Figure 14 or Figure 15 adopt; The layout of LED lamp and LED driving governor is the same with the mode of connection with the mode of connection and existing lighting layout, and conventional lamp and control switch are directly changed in former illuminating line capable of using road, needn't destroy the wall body structure of former wiring; Only need to install in distribution box or outside the case Switching Power Supply; Wiring in the change distribution box can realize, is convenient to implement, and is safe and reliable.
Be noted that for single-circuit N channel field-effect pipe LED driving governor also to connect in the circuit that LED driving governor direct current negative pole connects the LED lamp and use at direct-flow positive pole.
The operation principle of the utility model is following:
The alternating current 220V power supply is supplied power to Switching Power Supply with circuit breaker through main breaker and illumination; The Switching Power Supply output DC is connected to the basic routing line towards each room; The control switch in each room is connected in series on the DC+ and DC-of basic routing line with the LED lamp with constant-current circuit, is controlled the opening and closing of LED lamp by control switch.
At control switch is in the LED driving control system of led controller; Microcontroller in the led controller is transferred to switching circuit by the operation information of certain cycle detection input and according to the information of turning on light that receives or turn off the light information and light modulation information generating control signal corresponding; Switching circuit receives signal and is moved by the FET responding to switch; The driving LED lamp is lighted or is extinguished and light modulation; During turning on light, the held concurrently effect of power taking and energy storage of FET and diode and electrochemical capacitor, the electric power of generation is supplied with the control unit operate as normal.
Referring to the flow chart of turning on light and turn off the light that Figure 19 provides, the work of the LED driving control system of the utility model may further comprise the steps:
Step S01, the microcontroller in the LED driving governor press some cycles and detect input information;
Step S02, microcontroller judge whether to receive the information of turning on light of input, as do not receive the information of turning on light, and continue to detect, as receive the information of turning on light, and change step S03;
Step S03, microcontroller send pwm signal, the duty ratio of this pwm signal near and less than 100% being 95%, 96%, 97%, 98% or 99%, preferred value is 99%, sends to switching circuit;
Step S04, switching circuit receive this pwm signal and responding to switch action, driving LED lamp;
Step S05, the LED lamp is lighted;
Step S06, microcontroller continue to detect input information;
Step S07 judges whether to receive the information of turning off the light of input, as does not receive and then change step 03, as receives and then change step S08;
Step S08, microcontroller stop to send pwm signal;
Step S09, switching circuit is not received pwm signal, response is turn-offed;
Step S10, the LED lamp extinguishes.
Electricity-fetching method is following during turning on light and turning off the light:
Power on during turning off the light or initially; FET in the LED driving governor is in off state; The electric current of DC power supply is given electrochemical capacitor and voltage stabilizing circuit and control unit power supply through the resistance and the diode at LED lamp and load two ends; Make the control unit operate as normal, the waveform of each collection point is shown in figure 16.
During turning on light, FET turn-offed when the pwm signal that FET receives was in low level, and the electric current of DC power supply is supplied power to the electrochemical capacitor energy storage and to voltage stabilizing circuit and control unit through the resistance and the diode at LED lamp and load two ends.FET conducting when the pwm signal that FET receives is in high level, diode stop electric current reverse through the public ground of FET inflow, are continued to keep power supply to voltage stabilizing circuit and control unit by the electrochemical capacitor energy stored.The waveform of each collection point is shown in figure 17, is 99% control and the electricity-fetching method and the principle of the utility model to be described with the pwm signal duty ratio.
Referring to the light modulation flow chart that Figure 20 provides, the work of the LED driving control system of the utility model may further comprise the steps:
Step S10, microcontroller press some cycles and detect input information;
Step S12, microcontroller judge whether to receive the light modulation information of input, as do not receive light modulation information, continue to detect, as receive light modulation information, change step S13;
Step S13, microcontroller send corresponding duty ratio pwm signal and give switching circuit;
Step S14, switching circuit receive this pwm signal and responding to switch action, driving LED lamp;
Step S15, the brightness on request of LED lamp is lighted;
Step S16, microcontroller continue to detect input information;
Step S17 judges whether to receive the light modulation information change of input, as does not receive and then change step 13, as receives and then change step S18;
Step S18, microcontroller sends new pwm signal;
Step S19, switching circuit receives new pwm signal, responds new switch motion;
Step S20, the LED lamp is luminous by adjusted brightness.
Carry out light modulation operating period, the power taking principle with turn on light during identical, the duty ratio of pwm signal difference just, the waveform of each collection point is shown in figure 18, is 10% control and the electricity-fetching method and the principle of the utility model to be described with the light modulation duty ratio only.
Should be noted that; The flow chart that above-mentioned steps combines Figure 19 and Figure 20 to provide has only been described major technique characteristic and the step and the flow process of the utility model method of work, should be interrelated and interspersed by the real possible operation information of user between step S01 to S10 and the step S11 to S20.Step S02 can occur proceeding to like actual operation and receive the light modulation information that microcontroller after the information of turning on light detects input, must respond this information like this and forward step S13 to.As microcontroller detects the information of turning off the light and makes judgement after proceeding to step S20, then makes an immediate response this information and forwards S08 to.These belong to prior art by the interrelated and conversion between the specific procedure of practical operation and use and each step, are that the ordinary procedure person of this area can accomplish smoothly, do not do detailed description at this.
The key component of the method for work of the utility model LED driving control system LED driving governor is: step S02; Microcontroller judges whether to receive the information of turning on light of input, as does not receive the information of turning on light, and continues to detect; As receive the information of turning on light, change step S03; Step S03, microcontroller send pwm signal, the duty ratio of this pwm signal near and less than 100% being 95%, 96%, 97%, 98% or 99%, preferred value is 99%, sends to switching circuit.The main points of the utility model are that the pwm signal duty ratio that prior art such as lamp dimmer is turned on light is 100% to become less than 100%; Preferred value 99%; Realized that the LED driving governor can be connected with the LED lamp and to its drive controlling in the LED of the utility model driving control system; During turning on light, only depend on single loop just can produce the required electric power of controller operate as normal and supply with, and the duty ratio of prior art 100% is impossible realize.The experiment proof; The LED lamp of 12W uses 99% duty ratio only to have reduced by 1.3% than 100% duty ratio illumination under identical distance when turning on light, and this small illumination reduces human eye and is difficult to discover, and power consumption has also reduced by 1.5% (because the error testing data of measuring instrument have small gap) simultaneously; The power that control unit and microcontroller consume and small; Comparing the LED lamp can ignore, and therefore, the utility model can not bring the reduction of efficient.
The utility model has solved the problem that the PWM light regulating technology of existing LED can not be directly use simultaneously on the existing two-wire system illuminating line that has laid that the utility model adopts; The tandem drive control technology that power supply separates with the LED lamp has solved the heat dissipation problem of LED lamp simultaneously; The change that this revolution is given birth to will speed up popularizing of LED illumination, this shows the marked improvement that the utility model is obtained.
Both can be connected in parallel on the inner lamp plate of LED lamp with LED lamp parallel resistor, also can be connected in parallel on the terminals of circuit and LED lamp external.For external resistance, can make the little module that has lead-in wire or terminal, be convenient to so more install.
The constant-current circuit that LED lamp described in the utility model is had is a prior art, and Fig. 9 has only provided a kind of constant-current circuit wherein, and the utility model is suitable equally for the constant-current circuit of other topological mode.The power end of constant-current circuit also not only is confined to be connected with LED bottom is anodal, as long as voltage is consistent with the voltage request of constant-current circuit.
The LED lamp also not only is confined to one group of 6 LED series connection, can adopt many group parallel connections to reach the needs of different capacity LED lamp.The LED lamp also not only is confined to 6 LED series connection, and the characterisitic parameter of the LED that this just need use the direct current supply voltage and the LED lamp of Switching Power Supply matees, to reach the optimal illumination effect.For different lighting demands like environment that uses shot-light and the environment that uses high-power LED light source; Can adopt LED series connection and many group parallel connections of varying number; Also can use the LED module; This just needs to have in the system Switching Power Supply and the Switching Power Supply of a plurality of different output voltages to have the illuminating line connection of one group of above output voltage and different voltage requirements, and to satisfy different lighting demands, this also is the embodiment of the utility model.
Above-described only is the preferred implementation of the utility model; Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model design; Can also make some distortion and improvement, these all belong to the protection range of the utility model.
Claims (10)
1. LED illuminalive power-supply and driving control system is characterized in that:
Comprise Switching Power Supply, LED lamp and LED control switch;
Said Switching Power Supply be installed in the distribution box or distribution box outside; Said LED lamp is installed in each room; The ac input end of Switching Power Supply is connected with the 220V AC power through the circuit breaker in the distribution box; The direct current safe voltage output of Switching Power Supply is connected with the basic routing line that leads to each room, and the LED control switch and the LED lamp in the room in each room are connected in series on the DC+ and DC-of basic routing line.
2. LED illuminalive power-supply as claimed in claim 1 and driving control system is characterized in that:
Said LED lamp comprises the LED constant-current circuit of connecting with LED.
3. according to claim 1 or claim 2 LED illuminalive power-supply and driving control system is characterized in that:
Said LED control switch is the common wall switch.
4. according to claim 1 or claim 2 LED illuminalive power-supply and driving control system is characterized in that:
Said LED control switch is the LED driving governor, comprises switch power taking unit with switching circuit and the control unit with microcontroller;
Microcontroller comprises pwm signal output, information input terminal, power input, and the pwm signal output connects the signal input part of said switch power taking unit, and power input connects the power output end of switch power taking unit;
One end of switch power taking unit is connected with an end of LED lamp, and the other end of switch power taking unit is connected with an end of DC power supply, and the other end of DC power supply is connected with the other end of LED lamp.
5. LED illuminalive power-supply as claimed in claim 4 and driving control system is characterized in that:
Switching circuit in the switch power taking unit comprises at least one FET;
Switch power taking unit also comprises power-supply circuit and voltage stabilizing circuit;
Said power-supply circuit comprises diode, electrochemical capacitor and the FET shared with switching circuit;
The drain electrode of said FET is connected with the negative pole of LED lamp as an end of switch power taking unit; The source electrode of FET is connected with the negative pole of DC power supply as the other end of switch power taking unit; The grid of FET is connected with the signal output part of control unit or the signal output part through the microcontroller in resistance and the control unit is connected, and the positive pole of LED lamp is connected with the positive pole of DC power supply;
The anode of said diode is connected with the drain electrode of FET; The negative electrode of diode is connected with the input anodal and said voltage stabilizing circuit of said electrochemical capacitor; The output of voltage stabilizing circuit is connected with the power input of the power input of control unit and microcontroller, the ground end of the source electrode of FET, the negative pole of electrochemical capacitor, voltage stabilizing circuit and the ground end of control unit be connected publicly.
6. LED illuminalive power-supply as claimed in claim 4 and driving control system is characterized in that:
Switching circuit in the switch power taking unit comprises at least one FET, first resistance, second resistance, the 3rd resistance, triode;
Switch power taking unit also comprises power-supply circuit and voltage stabilizing circuit;
Said power-supply circuit comprises diode, electrochemical capacitor and the FET shared with switching circuit;
The drain electrode of said FET is connected with the positive pole of said LED lamp as an end of switch power taking unit; The source electrode of FET is connected with the positive pole of DC power supply as the other end of switch power taking unit; The negative pole of LED lamp is connected with the negative pole of DC power supply; The grid of FET is connected with an end of said first resistance; The other end of first resistance is connected with the source electrode of FET, and an end of said second resistance is connected with the grid of FET, and the other end of second resistance is connected with the collector electrode of said triode; The base stage of triode is connected with an end of the 3rd resistance; The other end of the 3rd resistance is connected with the signal output part of microcontroller in the control unit, and the negative electrode of said diode is connected with the drain electrode of FET, and the positive pole of said electrochemical capacitor is connected with the input of the source electrode of FET and said voltage stabilizing circuit; The output of voltage stabilizing circuit is connected with the power input of the power input of control unit and microcontroller, the ground end of the negative pole of the emitter of triode, the anode of diode, electrochemical capacitor, the ground end of voltage stabilizing circuit and control unit be connected publicly.
7. like any one described LED illuminalive power-supply and driving control system of claim 2 and claim 4 to 6, it is characterized in that:
Parallel connection one resistance at said LED lamp two ends;
The resistance of said resistance is simplified by R≤(U-Vc-Vd)/Is and is calculated; U is the input voltage of DC power supply; Vc can guarantee the minimum voltage of operate as normal for the voltage stabilizing circuit input; Vd is the tube voltage drop of diode, and Is is the maximum current of control unit and voltage stabilizing circuit consumption and the electric current sum of loss when work.
8. like any one described LED illuminalive power-supply and driving control system of claim 4 to 6, it is characterized in that:
Said control unit also comprises MIM message input module, and its input pattern is the button input pattern or touches input pattern or the induction input pattern that the signal output part of MIM message input module is connected with the signal input part of microcontroller.
9. like any one described LED illuminalive power-supply and driving control system of claim 4 to 6, it is characterized in that:
Said control unit also comprises wireless or the infrared remote control receiving circuit, and its signal output part is connected with the signal input part of microcontroller, and its power end is connected with the power output end of voltage stabilizing circuit.
10. like any one described LED illuminalive power-supply and driving control system of claim 4 to 9, it is characterized in that:
Said control unit also comprises information port or information port and bus transceiver, can receive or send the information from bus system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205206587U CN202340339U (en) | 2011-12-09 | 2011-12-09 | LED (light-emitting diode) illumination power supply and drive control system |
| PCT/CN2012/001591 WO2013082866A1 (en) | 2011-12-09 | 2012-11-28 | Led illumination power supply and drive control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205206587U CN202340339U (en) | 2011-12-09 | 2011-12-09 | LED (light-emitting diode) illumination power supply and drive control system |
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| Publication Number | Publication Date |
|---|---|
| CN202340339U true CN202340339U (en) | 2012-07-18 |
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| CN2011205206587U Expired - Lifetime CN202340339U (en) | 2011-12-09 | 2011-12-09 | LED (light-emitting diode) illumination power supply and drive control system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013082866A1 (en) * | 2011-12-09 | 2013-06-13 | Jin Dekui | Led illumination power supply and drive control system |
| CN103167672A (en) * | 2011-12-09 | 2013-06-19 | 金德奎 | Light-emitting diode (LED) illumination power supply and drive control system |
| WO2014015560A1 (en) * | 2012-07-24 | 2014-01-30 | 上海亚明照明有限公司 | Drive circuit for led module |
| CN105163459A (en) * | 2015-09-29 | 2015-12-16 | 东莞市万科建筑技术研究有限公司 | Intelligent illumination system and construction method |
| CN106058846A (en) * | 2015-04-08 | 2016-10-26 | 松下知识产权经营株式会社 | Lighting system, control method, and control apparatus |
| CN106993360A (en) * | 2015-09-10 | 2017-07-28 | 时间门有限公司 | Lighting circuit |
-
2011
- 2011-12-09 CN CN2011205206587U patent/CN202340339U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013082866A1 (en) * | 2011-12-09 | 2013-06-13 | Jin Dekui | Led illumination power supply and drive control system |
| CN103167672A (en) * | 2011-12-09 | 2013-06-19 | 金德奎 | Light-emitting diode (LED) illumination power supply and drive control system |
| CN103167672B (en) * | 2011-12-09 | 2017-04-19 | 金德奎 | Light-emitting diode (LED) illumination power supply and drive control system |
| WO2014015560A1 (en) * | 2012-07-24 | 2014-01-30 | 上海亚明照明有限公司 | Drive circuit for led module |
| CN106058846A (en) * | 2015-04-08 | 2016-10-26 | 松下知识产权经营株式会社 | Lighting system, control method, and control apparatus |
| CN106058846B (en) * | 2015-04-08 | 2019-11-29 | 松下知识产权经营株式会社 | Lighting system, control method and control device |
| CN106993360A (en) * | 2015-09-10 | 2017-07-28 | 时间门有限公司 | Lighting circuit |
| CN105163459A (en) * | 2015-09-29 | 2015-12-16 | 东莞市万科建筑技术研究有限公司 | Intelligent illumination system and construction method |
| CN105163459B (en) * | 2015-09-29 | 2018-07-13 | 东莞市万科建筑技术研究有限公司 | Intelligent illuminating system and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180615 Address after: 200001 room 908, district C, 666 Beijing East Road, Huangpu District, Shanghai. Patentee after: Shanghai little Butler Electric Appliance Industry Co., Ltd. Address before: 516021 R & D department, 3 building, A building, Ru Lake Industrial Park, Huicheng District, Huizhou, Guangdong Patentee before: Jin Dekui |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120718 |
|
| CX01 | Expiry of patent term |