CN105101575A - Smart T-series light emitting diode (LED) lamp driver and control method therefor - Google Patents
Smart T-series light emitting diode (LED) lamp driver and control method therefor Download PDFInfo
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- CN105101575A CN105101575A CN201510560926.0A CN201510560926A CN105101575A CN 105101575 A CN105101575 A CN 105101575A CN 201510560926 A CN201510560926 A CN 201510560926A CN 105101575 A CN105101575 A CN 105101575A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a smart T-series light emitting diode (LED) lamp driver and a control method therefor. The driver comprises a power supply circuit with two paths of power supply channels, an MUC control circuit, a communication circuit and an LED driving circuit. The first path of the power supply circuit is electrically connected with the MUC control circuit and the communication circuit. The second path of the power supply circuit is electrically connected with the LED driving circuit. The MUC control circuit comprises an MUC microprocessor, a thermistor and a photoresistor. The thermistor and the photoresistor are electrically connected with the input end of the MUC microprocessor. The output end of the MUC microprocessor is electrically connected with the LED driving circuit. The communication end of the MUC microprocessor is in interactive connection with a smart panel of a terminal through the communication circuit. The smart T-series LED lamp driver has the technical characteristics of reasonable circuit design structure, high efficiency and energy conservation, stable constant current output, safe and stable communication, and high reliability.
Description
Technical field
The present invention relates to LED and drive illumination application, particularly relate to a kind of intelligent T series LED lamps driver and control method thereof.
Background technology
Current LED drives illumination in popularization, there are some problems, and cause LED to shorten useful life because LED current is excessive, the problems such as generation light decay phenomenon have had a strong impact on the effect of LED illumination.LED malfunction monitoring is all generally manual inspection, and without automatic monitoring brake, the damage of LED illumination light decay and light fixture, causes environmental complex illumination not reach lighting quality standard, and therefore attenuation compensation and fault are monitored automatically becomes a kind of objective demand.
In intelligent illuminating system, Chinese scholars has researched and developed intelligent illuminating system that is relatively independent, that be specifically designed to Lighting control, microcosmic is taked remote control, presence should, the hommization control mode such as field panel, scene, build various suitable luminous environment; The macroscopically development from centralized control to collecting and distributing and distributed control mode gradually, efficiently solves the drawbacks such as relative distribution that Traditional control in the past exists and not manageability.Can control multiple lamp districts in same place, such as: by can select the lighting atmosphere be suitable for intelligent panel operation, setting lighting hours, region, method etc., carry out independent control to each loop.For the demand of intelligent illuminating system, develop LED intelligent driver of the present invention.
Summary of the invention
For the weak point existed in above-mentioned technology, the invention provides a kind of intelligent T series LED lamps driver and control method thereof, have that circuit design structure is reasonable, energy-efficient, constant current output is stable, communication security is stable, reliability high-technology feature.
For achieving the above object, the invention provides a kind of intelligent T series LED lamps driver, comprise power supply circuits, MUC control circuit, communicating circuit and the LED drive circuit with duplex feeding passage;
The first via of described power supply circuits is electrically connected with MUC control circuit and communicating circuit respectively, and the second tunnel of described power supply circuits is electrically connected with LED drive circuit;
Described MUC control circuit comprises MUC microprocessor, thermistor and photo resistance, described thermistor and photo resistance are electrically connected with the input of MUC microprocessor respectively, the output of described MUC microprocessor is electrically connected with LED drive circuit, and the communication terminal of described MUC microprocessor is connected with the intelligent panel of terminal alternately by communicating circuit;
By MUC microcontroller acquires photo resistance both end voltage, if acquisition testing does not reach preset value to the illumination of photo resistance, MUC microprocessor carrys out the light illumination of LED drive circuit for adjusting by changing PWM duty ratio;
By MUC microcontroller acquires thermistor both end voltage, if acquisition testing exceedes set point to temperature, the drive current of MUC microprocessor by regulating pwm control signal to reduce LED drive circuit.
Wherein, the first via of described power supply circuits comprises resettable fuse, the 8th resistance, the resistance-capacitance depressurization unit be made up of the 9th electric capacity and the 5th resistor coupled in parallel, the rectification unit be made up of the second diode and the 4th diode, the voltage regulation unit be made up of the 6th resistance, the 5th diode, the 7th resistance and the 6th diode, the capacitor filtering unit, linear voltage stabilization chip and the 12 filter capacitor that are made up of the tenth electric capacity and the 11 electric capacity of parallel connection; Described resettable fuse is connected with one end of resistance-capacitance depressurization unit by the 8th resistance, the other end of described resistance-capacitance depressurization unit is electrically connected with the input of linear voltage stabilization chip by rectification unit, voltage regulation unit, capacitor filtering unit successively, the common port that output and one end of the 12 filter capacitor of described linear voltage stabilization chip are formed exports 3.3V power supply and is electrically connected with MUC control circuit and communicating circuit respectively, and the earth terminal of described linear voltage stabilization chip is electrically connected with the other end of the 12 filter capacitor.
Wherein, the second tunnel of described power supply circuits comprises fuse, surge resistance, the first in parallel safety electric capacity and the second safety electric capacity, is connected to the first differential mode inductance between the first safety electric capacity and second safety electric capacity one end, is connected to the second differential mode inductance, common mode inductance, full-bridge rectifier, the PFC power factor compensation unit be made up of the 13 electric capacity, the 11 diode, the tenth diode, the 11 resistance, the 8th diode and the 17 electric capacity and the 15 filter capacitor between the first safety electric capacity and the second safety electric capacity other end; One end of described surge resistance connects one end of the first safety electric capacity by fuse, the other end of described surge resistance connects the other end of the first safety electric capacity by the 14 resistance, described common mode inductance is connected between the second safety electric capacity and full-bridge rectifier, and described full-bridge rectifier is also connected with PFC power factor compensation unit, described PFC power factor compensation unit is electrically connected with LED drive circuit with the common port out-put supply that the 15 filter capacitor is formed.
Wherein, described MUC control circuit also comprises the capacitance-resistance electrification reset unit be made up of the 15 resistance and the 19 capacitances in series, the state LED indicating member being formed LC filtering power supply unit, the 20 filter capacitor by the 5th inductance with the 21 electric capacity of connecting and the 26 electric capacity and be made up of the 20 resistance of connecting and the 13 diode; Described 3.3V power supply is connected to one end of the 15 resistance, the common port that described 15 resistance and the 19 electric capacity are formed is connected to the input of MUC microprocessor, described LC filtering power supply unit is connected to the input of MUC microprocessor, the communication terminal connecting communication circuit of described MUC microprocessor.
Wherein, described MUC control circuit also comprises the temperature collecting cell gathered thermistor voltage, described temperature collecting cell comprises the 22 electric capacity and the 23 electric capacity of the 22 resistance and parallel connection, described 3.3V power supply is connected to one end of the 22 resistance, the other end of described 22 resistance respectively be connected thermistor and the 22 electric capacity.
Wherein, described MUC control circuit also comprises the light collection unit gathered photo resistance voltage, described light collection unit comprises the 24 electric capacity and the 25 electric capacity of the 23 resistance and parallel connection, described 3.3V power supply is connected to one end of the 23 resistance, and the other end of described 23 resistance is electrically connected with photo resistance and the 24 electric capacity respectively.
Wherein, described LED drive circuit comprises driving chip, the bootstrap type pressure unit providing constant current-supplying for LED lamp bead load and isolation optocoupler chip, 13rd pin of described MUC microprocessor exports PWM is connected to driving chip DMI pin through isolation optocoupler chip, regulate the light illumination of LED lamp bead by changing PWM duty ratio, described bootstrap type pressure unit is electrically connected with the input of driving chip; Described PFC power factor compensation unit is connected to driving chip with the common port that the 15 filter capacitor is formed by the tenth resistance in parallel and the 12 resistance, and is connected with the 16 electric capacity between described tenth resistance and the 12 resistance.
Wherein, described bootstrap type pressure unit comprise high-voltage MOS pipe, can the 9th diode of quick-recovery, the 4th inductance and be followed in series to form the 17 resistance of set of samples, the 18 resistance and the 19 resistance soon; The 14 electric capacity is connected with between the both positive and negative polarity of LED lamp bead, and the 14 electric capacity is connected between the drain electrode of high-voltage MOS pipe and the 9th diode by the 4th inductance, described 9th diode is also connected with the tenth resistance, the grid of described high-voltage MOS pipe is connected with the 12 resistance by the 13 resistance, the source electrode of described high-voltage MOS pipe is connected with driving chip by the 12 diode, and described set of samples is connected with driving chip.
Wherein, described communicating circuit carries out exchanges data by SPI universal serial bus and MCU microprocessor, and the network of described communicating circuit is 2.4G.
For achieving the above object, the present invention also provides a kind of control method of intelligent T series LED lamps driver,
By MUC microprocessor, acquisition process is carried out to photo resistance both end voltage, for ambient light illumination controls to provide data foundation, under permanent illumination light illumination mode, if the illumination that photo resistance detects does not reach preset value all the time, MUC microprocessor passes through pid algorithm, the PWM of automatic adjustment driving chip controls pin, and then regulates the brightness of LED lamp bead, thus makes ambient light illumination reach default brightness value; Synchronous, MUC microprocessor also carries out acquisition process to thermistor both end voltage, obtains LED luminous plaque temperature, if LED luminous plaque temperature is more than 125 degree, MUC microprocessor then by regulating pwm control signal, reducing the drive current of LED, guaranteeing LED safety;
MUC control circuit operates the lighting atmosphere can selecting to be suitable for by communicating circuit and intelligent panel, and sets lighting hours, region, method, carries out independent control to each LED loop.
Compared with prior art, intelligent T series LED lamps driver provided by the invention and control method thereof, have following beneficial effect:
1, by MUC microprocessor, acquisition process is carried out to photo resistance both end voltage, for ambient light illumination controls to provide data foundation, under permanent illumination light illumination mode, if the illumination that photo resistance detects does not reach preset value all the time, MUC microprocessor passes through pid algorithm, the PWM of automatic adjustment driving chip controls pin, and then regulates the brightness of LED lamp bead, thus makes ambient light illumination reach default brightness value; Synchronous, MUC microprocessor also carries out acquisition process to thermistor both end voltage, obtains LED luminous plaque temperature, if LED luminous plaque temperature is more than 125 degree, MUC microprocessor then by regulating pwm control signal, reducing the drive current of LED, guaranteeing LED safety; Above-mentioned improvement, automatically can control various suitable luminous environment, reach energy-efficient effect;
2, MUC control circuit operates the lighting atmosphere can selecting to be suitable for by communicating circuit and intelligent panel, and set lighting hours, region, method, independent control is carried out to each LED loop, this improvement, efficiently solve the drawbacks such as relative distribution that Traditional control in the past exists and not manageability, realize the effect of centralized control, distributed AC servo system;
3, the present invention has the technical characterstic that circuit design structure is reasonable, energy-efficient, constant current output is stablized, communication security is stablized, reliability is high.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of intelligent T series LED lamps driver power supply circuits of the present invention;
Fig. 2 is the schematic diagram of MCU control circuit and communicating circuit in the present invention;
Fig. 3 is the schematic diagram of LED drive circuit in the present invention.
Main element symbol description is as follows:
10, power supply circuits 11, MUC control circuit
12, communicating circuit 13, LED drive circuit.
Embodiment
In order to more clearly state the present invention, below in conjunction with accompanying drawing, the present invention is further described.
Refer to Fig. 1-3, intelligent T series LED lamps driver of the present invention, comprises power supply circuits 10, MUC control circuit 11, communicating circuit 12 and the LED drive circuit 13 with duplex feeding passage;
The first via of power supply circuits 10 is electrically connected with MUC control circuit 11 and communicating circuit 12 respectively, and the second tunnel of power supply circuits 10 is electrically connected with LED drive circuit 13;
MUC control circuit 11 comprises MUC microprocessor U2, thermistor Rt2 and photosensitive resistor rp 2, thermistor Rt2 and photosensitive resistor rp 2 are electrically connected with the input of MUC microprocessor U2 respectively, the output of MUC microprocessor U2 is electrically connected with LED drive circuit 13, and the communication terminal of MUC microprocessor U2 is connected with the intelligent panel of terminal alternately by communicating circuit 12;
Gather photosensitive resistor rp 2 both end voltage by MUC microprocessor U2, if acquisition testing does not reach preset value to the illumination of photosensitive resistor rp 2, MUC microprocessor U2 carrys out the light illumination of LED drive circuit for adjusting 13 by change PWM duty ratio;
Thermistor Rt2 both end voltage is gathered by MUC microprocessor U2, if acquisition testing exceedes set point to temperature, the drive current of MUC microprocessor U2 by regulating pwm control signal to reduce LED drive circuit 13.
Compared to the situation of prior art, intelligent T series LED lamps driver provided by the invention, has following beneficial effect:
1, by MUC microprocessor U2, acquisition process is carried out to photosensitive resistor rp 2 both end voltage, for ambient light illumination controls to provide data foundation, under permanent illumination light illumination mode, if the illumination that photo resistance detects does not reach preset value all the time, MUC microprocessor U2 passes through pid algorithm, the PWM of automatic adjustment driving chip controls pin, and then regulates the brightness of LED lamp bead, thus makes ambient light illumination reach default brightness value; Synchronous, MUC microprocessor U2 also carries out acquisition process to thermistor Rt2 both end voltage, obtains LED luminous plaque temperature, if LED luminous plaque temperature is more than 125 degree, MUC microprocessor then by regulating pwm control signal, reducing the drive current of LED, guaranteeing LED safety; Above-mentioned improvement, automatically can control various suitable luminous environment, reach energy-efficient effect;
2, MUC control circuit 11 operates by communicating circuit 12 and intelligent panel the lighting atmosphere can selecting to be suitable for, and set lighting hours, region, method, independent control is carried out to each LED loop, this improvement, efficiently solve the drawbacks such as relative distribution that Traditional control in the past exists and not manageability, realize the effect of centralized control, distributed AC servo system;
3, the present invention has the technical characterstic that circuit design structure is reasonable, energy-efficient, constant current output is stablized, communication security is stablized, reliability is high.
Please again consult Fig. 1, power supply electricity, the first via of 10 comprises resettable fuse F1, the 8th resistance R8, the resistance-capacitance depressurization unit be made up of the 9th electric capacity C9 and the 5th resistance R5 parallel connection, the rectification unit be made up of the second diode D2 and the 4th diode D4, the voltage regulation unit be made up of the 6th resistance R6, the 5th diode D5, the 7th resistance R7 and the 6th diode D6, the capacitor filtering unit, linear voltage stabilization chip U1 and the 12 filter capacitor C12 that are made up of the tenth electric capacity C10 and the 11 electric capacity C11 of parallel connection; Resettable fuse F1 is connected with one end of resistance-capacitance depressurization unit by the 8th resistance R8, the other end of resistance-capacitance depressurization unit is electrically connected with the input of linear voltage stabilization chip U1 by rectification unit, voltage regulation unit, capacitor filtering unit successively, the common port that output and one end of the 12 filter capacitor C12 of linear voltage stabilization chip U1 are formed exports 3.3V power supply and is electrically connected with MUC control circuit 11 and communicating circuit 12 respectively, and the earth terminal of linear voltage stabilization chip U1 is electrically connected with the other end of the 12 filter capacitor C12.First via 220V alternating current passes through resettable fuse overcurrent protection, then through resistance-capacitance depressurization, the pre-voltage stabilizing of diode capacitance rectifying and wave-filtering Zener diode, then through three linear voltage stabilizings, export 5V and 3.3V voltage, for MCU control circuit and communicating circuit provide power supply.Second tunnel of power supply circuits comprises fuse F2, surge resistance VR1, first safety electric capacity XC1 in parallel and the second safety electric capacity XC2, be connected to the first differential mode inductance L1 between the first safety electric capacity XC1 and second safety electric capacity XC2 one end, be connected to the second differential mode inductance L2 between the first safety electric capacity XC1 and the second safety electric capacity XC2 other end, common mode inductance L3, full-bridge rectifier D7, by the 13 electric capacity C13, 11 diode D11, tenth diode D10, 11 resistance R11, the PFC power factor compensation unit that 8th diode D8 and the 17 electric capacity C17 is formed and the 15 filter capacitor C15, one end of surge resistance VR1 connects one end of the first safety electric capacity XC1 by fuse F2, the other end of surge resistance VR1 connects the other end of the first safety electric capacity XC1 by the 14 resistance R14, common mode inductance L3 is connected between the second safety electric capacity XC2 and full-bridge rectifier D7, and full-bridge rectifier D7 is also connected with PFC power factor compensation unit, the common port out-put supply that PFC power factor compensation unit and the 15 filter capacitor C15 are formed is electrically connected with LED drive circuit 13.Second road 220V alternating current is protected as input circuit by fuse, Anti-surging negative temperature coefficient NTC thermistor, anti-overvoltage piezo-resistance.Then, safety electric capacity, differential mode inductance and common mode inductance composition EMI filter circuit, makes system rejection to disturbance effectively be ensured.Power supply passes through full-bridge rectification after filtering, then through diode resistance electric capacity composition valley fill type PFC circuit of power factor correction, can effectively improve harmonic distortion and power factor, then for LED drive circuit provides power supply after capacitor filtering.
Please again consult Fig. 2, MUC control circuit 11 also comprises by the 15 resistance R15 and the 19 electric capacity C19 capacitance-resistance electrification reset unit in series, the state LED indicating member that formed LC filtering power supply unit, the 20 filter capacitor C20 by the 5th inductance L 5 with the 21 electric capacity C21 connected and the 26 electric capacity C26 and be made up of the 20 resistance R20 connected and the 13 diode D13; 3.3V power supply is connected to one end of the 15 resistance R15, the common port that 15 resistance R15 and the 19 electric capacity C19 is formed is connected to the input of MUC microprocessor U2, LC filtering power supply unit is connected to the input of MUC microprocessor U2, communication terminal connecting communication circuit 12, the MCU microprocessor U2 of MUC microprocessor U2 is for there being STMicw Electronics STM8S003F microprocessor.MUC control circuit 11 also comprises the temperature collecting cell gathered thermistor Rt2 voltage; temperature collecting cell comprises the 22 electric capacity C22 and the 23 electric capacity C23 of the 22 resistance R22 and parallel connection; 3.3V power supply is connected to one end of the 22 resistance R22; the other end of the 22 resistance R22 respectively be connected thermistor Rt2 and the 22 electric capacity C22; the temperature data A D of temperature collecting cell composition MCU microprocessor gathers, and carries out overtemperature protection.MUC control circuit 11 also comprises the light collection unit gathered photosensitive resistor rp 2 voltage, light collection unit comprises the 24 electric capacity C24 and the 25 electric capacity C25 of the 23 resistance R23 and parallel connection, 3.3V power supply is connected to one end of the 23 resistance R23, and the other end of the 23 resistance R23 is electrically connected with photosensitive resistor rp the 2 and the 24 electric capacity C24 respectively.Light collection unit composition MCU microprocessor light illumination data AD gathers, and carries out ambient light luminance detection.
Please again consult Fig. 3, LED drive circuit 13 has the second road power supply high pressure power taking, LED drive circuit 13 comprises driving chip U4, the bootstrap type pressure unit providing constant current-supplying for LED lamp bead load and isolation optocoupler chip U7,13rd pin of MUC microprocessor U2 exports PWM is connected to driving chip U4 DMI pin through isolation optocoupler chip U7, regulate the light illumination of LED lamp bead by changing PWM duty ratio, bootstrap type pressure unit is electrically connected with the input of driving chip U4; PFC power factor compensation unit is connected to driving chip U4 with the common port that the 15 filter capacitor C15 is formed by the tenth resistance R10 in parallel and the 12 resistance R12, and is connected with the 16 electric capacity C16 between the tenth resistance R10 and the 12 resistance R12.Bootstrap type pressure unit comprise high-voltage MOS pipe Q2, can the 9th diode D9 of quick-recovery, the 4th inductance L 4 and be followed in series to form the 17 resistance R17, the 18 resistance R18 and the 19 resistance R19 of set of samples soon; The 14 electric capacity C14 is connected with between the both positive and negative polarity of LED lamp bead, and the 14 electric capacity C14 is connected between the drain electrode of high-voltage MOS pipe Q2 and the 9th diode by the 4th inductance L 4,9th diode is also connected with the tenth resistance, the grid of high-voltage MOS pipe Q2 is connected with the 12 resistance R12 by the 13 resistance R13, the source electrode of high-voltage MOS pipe Q2 is connected with driving chip U4 by the 12 diode D12, and set of samples is connected with driving chip U4.The model of driving chip U4 is PT4207.
In the present embodiment, communicating circuit 12 carries out exchanges data by SPI universal serial bus and MCU microprocessor U2, and the network of communicating circuit 12 is 2.4G.Communicating circuit 12 carries out interactive operation by control software design and host computer or intelligent panel, selects suitable lighting atmosphere, and setting lighting hours, region, method etc., carry out independent control to each loop.
For achieving the above object, the present invention also provides a kind of control method of intelligent T series LED lamps driver,
By MUC microprocessor U2, acquisition process is carried out to photosensitive resistor rp 2 both end voltage, for ambient light illumination controls to provide data foundation, under permanent illumination light illumination mode, if the illumination that photosensitive resistor rp 2 detects does not reach preset value all the time, MUC microprocessor U2 passes through pid algorithm, the PWM of automatic adjustment driving chip U4 controls pin, and then regulates the brightness of LED lamp bead, thus makes ambient light illumination reach default brightness value; Synchronous, MUC microprocessor U2 also carries out acquisition process to thermistor Rt2 both end voltage, obtains LED luminous plaque temperature, if LED luminous plaque temperature is more than 125 degree, MUC microprocessor Rt2 then by regulating pwm control signal, reducing the drive current of LED, guaranteeing LED safety;
MUC control circuit 11 operates by communicating circuit 12 and intelligent panel the lighting atmosphere can selecting to be suitable for, and sets lighting hours, region, method, carries out independent control to each LED loop.
The control method of intelligent T series LED lamps driver provided by the invention, has the technical characterstic that circuit design structure is reasonable, energy-efficient, constant current output is stablized, communication security is stablized, reliability is high.Its concrete technical characterstic shows: one, circuit design is novel; Two, energy-efficient; Three, EMI electromagnetic interference is little; Four, application installation is convenient.
Technical parameter of the present invention is, power supply inputs: AC90 ~ 260V50Hz; LED drive current: 300MA; Wireless transmission distance: 200M; Operating ambient temperature :-10 ~ 50 DEG C.And the present invention is applicable to the larger occasion of the flow of the people elasticity of the public places such as conference hall, airport, railway station, office, market, school, factory, these occasions need the pattern of whole day illumination in 24 hours, can take to throw light on as required without the need to manually operated intelligent lighting pattern by technology of the present invention.
Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
1. an intelligent T series LED lamps driver, is characterized in that, comprises power supply circuits, MUC control circuit, communicating circuit and the LED drive circuit with duplex feeding passage;
The first via of described power supply circuits is electrically connected with MUC control circuit and communicating circuit respectively, and the second tunnel of described power supply circuits is electrically connected with LED drive circuit;
Described MUC control circuit comprises MUC microprocessor, thermistor and photo resistance, described thermistor and photo resistance are electrically connected with the input of MUC microprocessor respectively, the output of described MUC microprocessor is electrically connected with LED drive circuit, and the communication terminal of described MUC microprocessor is connected with the intelligent panel of terminal alternately by communicating circuit;
By MUC microcontroller acquires photo resistance both end voltage, if acquisition testing does not reach preset value to the illumination of photo resistance, MUC microprocessor carrys out the light illumination of LED drive circuit for adjusting by changing PWM duty ratio;
By MUC microcontroller acquires thermistor both end voltage, if acquisition testing exceedes set point to temperature, the drive current of MUC microprocessor by regulating pwm control signal to reduce LED drive circuit.
2. intelligent T series LED lamps driver according to claim 1, it is characterized in that, the first via of described power supply circuits comprises resettable fuse, the 8th resistance, the resistance-capacitance depressurization unit be made up of the 9th electric capacity and the 5th resistor coupled in parallel, the rectification unit be made up of the second diode and the 4th diode, the voltage regulation unit be made up of the 6th resistance, the 5th diode, the 7th resistance and the 6th diode, the capacitor filtering unit, linear voltage stabilization chip and the 12 filter capacitor that are made up of the tenth electric capacity and the 11 electric capacity of parallel connection; Described resettable fuse is connected with one end of resistance-capacitance depressurization unit by the 8th resistance, the other end of described resistance-capacitance depressurization unit is electrically connected with the input of linear voltage stabilization chip by rectification unit, voltage regulation unit, capacitor filtering unit successively, the common port that output and one end of the 12 filter capacitor of described linear voltage stabilization chip are formed exports 3.3V power supply and is electrically connected with MUC control circuit and communicating circuit respectively, and the earth terminal of described linear voltage stabilization chip is electrically connected with the other end of the 12 filter capacitor.
3. intelligent T series LED lamps driver according to claim 1, it is characterized in that, second tunnel of described power supply circuits comprises fuse, surge resistance, first safety electric capacity in parallel and the second safety electric capacity, be connected to the first differential mode inductance between the first safety electric capacity and second safety electric capacity one end, be connected to the second differential mode inductance between the first safety electric capacity and the second safety electric capacity other end, common mode inductance, full-bridge rectifier, by the 13 electric capacity, 11 diode, tenth diode, 11 resistance, the PFC power factor compensation unit that 8th diode and the 17 electric capacity are formed and the 15 filter capacitor, one end of described surge resistance connects one end of the first safety electric capacity by fuse, the other end of described surge resistance connects the other end of the first safety electric capacity by the 14 resistance, described common mode inductance is connected between the second safety electric capacity and full-bridge rectifier, and described full-bridge rectifier is also connected with PFC power factor compensation unit, described PFC power factor compensation unit is electrically connected with LED drive circuit with the common port out-put supply that the 15 filter capacitor is formed.
4. intelligent T series LED lamps driver according to claim 1, it is characterized in that, described MUC control circuit also comprises the capacitance-resistance electrification reset unit be made up of the 15 resistance and the 19 capacitances in series, the state LED indicating member being formed LC filtering power supply unit, the 20 filter capacitor by the 5th inductance with the 21 electric capacity of connecting and the 26 electric capacity and be made up of the 20 resistance of connecting and the 13 diode; Described 3.3V power supply is connected to one end of the 15 resistance, the common port that described 15 resistance and the 19 electric capacity are formed is connected to the input of MUC microprocessor, described LC filtering power supply unit is connected to the input of MUC microprocessor, the communication terminal connecting communication circuit of described MUC microprocessor.
5. intelligent T series LED lamps driver according to claim 1, it is characterized in that, described MUC control circuit also comprises the temperature collecting cell gathered thermistor voltage, described temperature collecting cell comprises the 22 electric capacity and the 23 electric capacity of the 22 resistance and parallel connection, described 3.3V power supply is connected to one end of the 22 resistance, the other end of described 22 resistance respectively be connected thermistor and the 22 electric capacity.
6. intelligent T series LED lamps driver according to claim 1, it is characterized in that, described MUC control circuit also comprises the light collection unit gathered photo resistance voltage, described light collection unit comprises the 24 electric capacity and the 25 electric capacity of the 23 resistance and parallel connection, described 3.3V power supply is connected to one end of the 23 resistance, and the other end of described 23 resistance is electrically connected with photo resistance and the 24 electric capacity respectively.
7. intelligent T series LED lamps driver according to claim 3, it is characterized in that, described LED drive circuit comprises driving chip, the bootstrap type pressure unit providing constant current-supplying for LED lamp bead load and isolation optocoupler chip, 13rd pin of described MUC microprocessor exports PWM is connected to driving chip DMI pin through isolation optocoupler chip, regulate the light illumination of LED lamp bead by changing PWM duty ratio, described bootstrap type pressure unit is electrically connected with the input of driving chip; Described PFC power factor compensation unit is connected to driving chip with the common port that the 15 filter capacitor is formed by the tenth resistance in parallel and the 12 resistance, and is connected with the 16 electric capacity between described tenth resistance and the 12 resistance.
8. intelligent T series LED lamps driver according to claim 7, it is characterized in that, described bootstrap type pressure unit comprise high-voltage MOS pipe, can the 9th diode of quick-recovery, the 4th inductance and be followed in series to form the 17 resistance of set of samples, the 18 resistance and the 19 resistance soon; The 14 electric capacity is connected with between the both positive and negative polarity of LED lamp bead, and the 14 electric capacity is connected between the drain electrode of high-voltage MOS pipe and the 9th diode by the 4th inductance, described 9th diode is also connected with the tenth resistance, the grid of described high-voltage MOS pipe is connected with the 12 resistance by the 13 resistance, the source electrode of described high-voltage MOS pipe is connected with driving chip by the 12 diode, and described set of samples is connected with driving chip.
9. intelligent T series LED lamps driver according to claim 1, it is characterized in that, described communicating circuit carries out exchanges data by SPI universal serial bus and MCU microprocessor, and the network of described communicating circuit is 2.4G.
10. a control method for intelligent T series LED lamps driver, is characterized in that,
By MUC microprocessor, acquisition process is carried out to photo resistance both end voltage, for ambient light illumination controls to provide data foundation, under permanent illumination light illumination mode, if the illumination that photo resistance detects does not reach preset value all the time, MUC microprocessor passes through pid algorithm, the PWM of automatic adjustment driving chip controls pin, and then regulates the brightness of LED lamp bead, thus makes ambient light illumination reach default brightness value; Synchronous, MUC microprocessor also carries out acquisition process to thermistor both end voltage, obtains LED luminous plaque temperature, if LED luminous plaque temperature is more than 125 degree, MUC microprocessor then by regulating pwm control signal, reducing the drive current of LED, guaranteeing LED safety;
MUC control circuit operates the lighting atmosphere can selecting to be suitable for by communicating circuit and intelligent panel, and sets lighting hours, region, method, carries out independent control to each LED loop.
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| CN201510560926.0A CN105101575A (en) | 2015-09-06 | 2015-09-06 | Smart T-series light emitting diode (LED) lamp driver and control method therefor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN106856637A (en) * | 2017-01-19 | 2017-06-16 | 广东斯泰克电子科技有限公司 | A kind of high-efficiency solar LED street lamp control system based on STM32 |
| CN108844287A (en) * | 2018-08-10 | 2018-11-20 | 震惶科技（成都）有限公司 | A kind of integrated switch control device |
| CN110381640A (en) * | 2019-07-30 | 2019-10-25 | 深圳市和惠源电子科技有限公司 | A kind of light adjusting circuit and LED lamp |
| CN111107692A (en) * | 2018-10-25 | 2020-05-05 | 中节能晶和照明有限公司 | LED working state recording and switch dimming connector |
| CN111246637A (en) * | 2020-01-17 | 2020-06-05 | 长安大学 | Office mixed lighting control method and device |
| CN111885779A (en) * | 2020-07-29 | 2020-11-03 | 无锡奥利杰科技有限公司 | Linear driving circuit of illumination LED and illumination LED |
| CN114017691A (en) * | 2022-01-06 | 2022-02-08 | 深圳市亮久远光电子有限公司 | LED lamp bead with intelligent switching function and LED lamp |
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|---|---|---|---|---|
| CN105978063A (en) * | 2016-05-06 | 2016-09-28 | 浙江师范大学 | Power storage module, micro power source, uninterrupted power source, environmental protection device, computer and electric device |
| CN106856637A (en) * | 2017-01-19 | 2017-06-16 | 广东斯泰克电子科技有限公司 | A kind of high-efficiency solar LED street lamp control system based on STM32 |
| CN108844287A (en) * | 2018-08-10 | 2018-11-20 | 震惶科技（成都）有限公司 | A kind of integrated switch control device |
| CN111107692A (en) * | 2018-10-25 | 2020-05-05 | 中节能晶和照明有限公司 | LED working state recording and switch dimming connector |
| CN110381640A (en) * | 2019-07-30 | 2019-10-25 | 深圳市和惠源电子科技有限公司 | A kind of light adjusting circuit and LED lamp |
| CN111246637A (en) * | 2020-01-17 | 2020-06-05 | 长安大学 | Office mixed lighting control method and device |
| CN111885779A (en) * | 2020-07-29 | 2020-11-03 | 无锡奥利杰科技有限公司 | Linear driving circuit of illumination LED and illumination LED |
| CN114017691A (en) * | 2022-01-06 | 2022-02-08 | 深圳市亮久远光电子有限公司 | LED lamp bead with intelligent switching function and LED lamp |
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