CN106937443A - Light modulation toning controller and its method based on input voltage control - Google Patents
Light modulation toning controller and its method based on input voltage control Download PDFInfo
- Publication number
- CN106937443A CN106937443A CN201710177015.9A CN201710177015A CN106937443A CN 106937443 A CN106937443 A CN 106937443A CN 201710177015 A CN201710177015 A CN 201710177015A CN 106937443 A CN106937443 A CN 106937443A
- Authority
- CN
- China
- Prior art keywords
- input voltage
- semiconductor
- oxide
- metal
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
- H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Led Devices (AREA)
Abstract
Light modulation toning controller and its method the present invention relates to be based on input voltage control, the controller include input block, power supply unit, input voltage measurement unit, main control chip U1, output unit and fictitious load control unit；Input block, it is connected with LED drive power, input voltage to main control chip U1；Input voltage measurement unit, the input voltage of its detection LED drive power, and be input into main control chip U1, fictitious load control unit is controlled by main control chip U1 output signals, with indirect control output unit；Output unit, it is connected with light fixture；Fictitious load control unit, under the control of main control chip U1, output signal control LED drive power is discharged for it.Present invention ensure that determining the action of turning off the light of the alternating-current switch of LED drive power exactly within the most short time, colour temperature and the brightness switching of LED can be realized, flexibility is good, and matching LED drive power and light modulation toning controller are convenient.
Description
Technical field
Technical field the present invention relates to dim toning controller, is based especially on the light modulation toning control of input voltage control
Device processed and its method.
Background technology
With the popularization of smart home, the intellectuality of LED lamp is also increasingly valued by people, the intelligence of LED lamp
During energyization is embodied in light modulation toning, and the light modulation of LED lamp toning is mainly completed by light modulation toning controller.
The controller of popular light modulation toning in the market is mainly button, touches or infrared induction control mode, substantially
On can meet a part of light fixture for dim toning function demand.But in the light fixture of many types, for example lamp affixed to the ceiling, bread lamp
Deng from the distant light fixture of user, it is impossible to realize control using the mode of touch-control or sensing, do not increasing the feelings of remote control
Under condition, it is more satisfactory means to control light fixture using switch on wall.The scheme for controlling LED lamp using switch on wall has two kinds
Mode：The first is LED drive power and light modulation toning controller integral；Second is that LED drive power and light modulation are mixed colours
Used as two independent modules, both match laggard luggage with wiring to controller.For first way, specific aim it is relatively strong but
Lack flexibility；For the second way, flexibility is good but needs to match LED drive power and light modulation toning controller ability
Normal work, but LED drive power type numerous and complicated on the market at present, match both and seem abnormal difficult.
Therefore, it is necessary to design the light modulation based on input voltage control mix colours controller, the colour temperature of LED and bright can be realized
Degree switching, flexibility is good, and matching LED drive power and light modulation toning controller are convenient.
The content of the invention
Defect it is an object of the invention to overcome prior art, there is provided the light modulation based on input voltage control is mixed colours and controlled
Device and its method.
To achieve the above object, the present invention uses following technical scheme：Light modulation based on input voltage control is mixed colours and is controlled
Device, including input block, power supply unit, input voltage measurement unit, main control chip U1, output unit and fictitious load control is single
Unit；The input block, it is connected with LED drive power, input voltage to the main control chip U1；Said supply unit is distinguished
For the input voltage measurement unit, main control chip U1, output unit and fictitious load control unit provide power supply；The input
Voltage detection unit, the input voltage of its detection LED drive power, and be input into the main control chip U1, by the master control core
Piece U1 output signals control the fictitious load control unit, with indirect control output unit；The output unit, it connects with light fixture
Connect；The fictitious load control unit, under the control of the main control chip U1, output signal control LED drive power is carried out for it
Electric discharge.
Its further technical scheme is：The input voltage measurement unit includes voltage R1, R2, R3, wherein, the resistance
Be grounded after R2, R3 parallel connection, the voltage R1 connects with described resistance R2, R3 respectively, the voltage R1 respectively with the master control core
AD test sides pin and the power supply unit connection of piece U1.
Its further technical scheme is：The input block includes the input terminal P1 being connected with power supply unit.
Its further technical scheme is：The output unit includes lead-out terminal P2 and metal-oxide-semiconductor Q1, Q2, triode Q3,
Described metal-oxide-semiconductor Q1, Q2 are connected between the input terminal P1 by exporting electrochemical capacitor C14, C13 respectively, the metal-oxide-semiconductor
The grid of Q1, Q2 is connected with the main control chip U1, and the drain electrode of described metal-oxide-semiconductor Q1, Q2 is connected with lead-out terminal P2 respectively, described
The source ground of metal-oxide-semiconductor Q1, the source ground of the metal-oxide-semiconductor Q2, and the grid of the metal-oxide-semiconductor Q2 are grounded by resistance R21, institute
The source electrode for stating metal-oxide-semiconductor Q2 is also associated with the triode Q3 being connected with the main control chip U1.
Its further technical scheme is：The fictitious load control unit includes metal-oxide-semiconductor Q4 and resistance R12, R25, R13,
The drain electrode of the metal-oxide-semiconductor Q4 is connected by resistance R13 with lead-out terminal P2, the source electrode of the metal-oxide-semiconductor Q4 and the triode Q3
Emitter stage connection, the grid of the metal-oxide-semiconductor Q4 is connected by resistance R25 with the colelctor electrode of the metal-oxide-semiconductor Q4, and the MOS
The grid of pipe Q4 is connected by resistance R12 with the output end pin of the main control chip U1, is controlled by controlling the conducting of metal-oxide-semiconductor Q4
The electric discharge of LED drive power processed.
Its further technical scheme is：Said supply unit includes isolating diode D3 and electrochemical capacitor C2, the isolation
Diode D3 connects with the electrochemical capacitor C2.
Its further technical scheme is：Said supply unit also includes that triode Q5, the triode Q5 are parallel to described
On electrochemical capacitor C2.
Present invention also offers the light modulation toning control method controlled based on input voltage, methods described includes：
Time delay shorter a period of time after electricity on main control chip U1 and its peripheral circuit, wait the unloaded electricity of LED drive power
After pressure stabilization, the magnitude of voltage of LED drive power is judged by AD test sides pin and colour temperature and the brightness of acquiescence is exported；When LED drives
After the alternating-current switch of dynamic power supply disconnects, the output electrochemical capacitor electric discharge of LED drive power, output voltage begins to decline, and works as input
Voltage detection unit to after this downward trend, by signal transmission in AD test sides pin, the pin of single-chip microcomputer U1 the 11st output high level,
Metal-oxide-semiconductor Q4 is turned on, and discharge resistance R13 carries out repid discharge and is allowed to drop to one to the output electrochemical capacitor of LED drive power
Individual relatively low magnitude of voltage Vlow；After the alternating-current switch of LED drive power is specified upon opening to be again switched in the time, LED drives
The output voltage of dynamic power supply rises very rapidly up to normal voltage value again, and main control chip U1 detects LED drive power output electricity
After the decline of pressure and uphill process, the dutycycle of the PWM1 and PWM2 of main control chip U1 is adjusted immediately, switch the colour temperature of LED and bright
Degree.
Compared with the prior art, the invention has the advantages that：Light modulation based on input voltage control of the invention is mixed colours and is controlled
Device processed, is constituted by setting fictitious load control unit, input voltage measurement unit and electrochemical capacitor C2 and isolating diode D3
Power supply unit, the input voltage of LED drive power is detected using input voltage measurement unit, and controlled by main control chip U1 false
The conducting of the metal-oxide-semiconductor Q4 in load control unit, and then control discharge resistance R13 to be switched on or switched off, it is ensured that when most short
The action of turning off the light of the interior alternating-current switch for determining LED drive power exactly, it is not necessary to real in the case of input bulky capacitor
The wide scope input of now light modulation toning controller, can realize colour temperature and the brightness switching of LED, and flexibility is good, and matching LED drives
Power supply and light modulation toning controller are convenient.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the light modulation toning controller based on input voltage control that the present embodiment is provided；
Fig. 2 is the circuit theory diagrams of the input voltage measurement unit that the present embodiment is provided；
Fig. 3 is the circuit theory diagrams of the fictitious load control unit that the present embodiment is provided；
Fig. 4 is the circuit theory diagrams of the power supply unit that the present embodiment is provided.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Realization of the invention is described in detail below in conjunction with specific embodiment.
Reference picture 1~4, for the preferred embodiment that the present invention is provided.
The light modulation toning controller based on input voltage control that the present embodiment is provided, can be used in the mistake of light fixture control
Cheng Zhong, can realize colour temperature and the brightness switching of LED, and flexibility is good, match LED drive power and light modulation toning controller side
Just.
Light modulation toning controller based on input voltage control, including input block, power supply unit, input voltage measurement list
Unit, main control chip U1, output unit and fictitious load control unit；Input block, it is connected with LED drive power, input electricity
It is depressed into main control chip U1；Power supply unit is respectively input voltage measurement unit, main control chip U1, output unit and fictitious load control
Unit processed provides power supply；Input voltage measurement unit, the input voltage of its detection LED drive power, and be input into main control chip
U1, controls fictitious load control unit, with indirect control output unit by main control chip U1 output signals；Output unit, itself and lamp
Tool connection；Fictitious load control unit, under the control of main control chip U1, output signal control LED drive power is discharged for it.
Further, input voltage measurement unit includes voltage R1, R2, R3, wherein, it is grounded after resistance R2, R3 parallel connection,
The voltage R1 connects with described resistance R2, R3 respectively, voltage R1 respectively with the AD test sides pin of the main control chip U1 and
Power supply unit is connected.
Specifically, above-mentioned its partial pressure value of input voltage measurement unit carries out AD inspections by the pin of single-chip microcomputer U1 the 5th (P52 mouthfuls)
Survey.
In addition, input block includes the input terminal P1 being connected with power supply unit, the both positive and negative polarity of input terminal P1 is connected to
The output both positive and negative polarity of LED driver.
Further, output unit includes lead-out terminal P2 and metal-oxide-semiconductor Q1, Q2, triode Q3, metal-oxide-semiconductor Q1, Q2 point
It is not connected by output capacitance C14, C13 between the input terminal P1, the grid and main control chip U1 of metal-oxide-semiconductor Q1, Q2 connect
Connect, the drain electrode of metal-oxide-semiconductor Q1, Q2 is connected with lead-out terminal P2 respectively, and the source ground of metal-oxide-semiconductor Q1, the source electrode of the metal-oxide-semiconductor Q2 connects
Ground, and the grid of the metal-oxide-semiconductor Q2 is grounded by resistance R21, the source electrode of the metal-oxide-semiconductor Q2 is also associated with and the main control chip
The triode Q3 of U1 connections.
Specifically, " VO+ " of above-mentioned lead-out terminal P2 connects the positive pole of white light string and yellow fluorescent lamp string；Lead-out terminal P2's
" W- " connects the negative pole of white light string；" Y- " of lead-out terminal P2 connects the negative pole of yellow fluorescent lamp string.
Fictitious load control unit includes metal-oxide-semiconductor Q4 and resistance R12, R25, R13, and the drain electrode of the metal-oxide-semiconductor Q4 is by electricity
Resistance R13 is connected with lead-out terminal P2, and the source electrode of the metal-oxide-semiconductor Q4 is connected with the emitter stage of the triode Q3, the metal-oxide-semiconductor Q4
Grid be connected with the colelctor electrode of the metal-oxide-semiconductor Q4 by resistance R25, and the metal-oxide-semiconductor Q4 grid pass through resistance R12 and institute
The output end pin connection of main control chip U1 is stated, by the electric discharge for controlling the conducting of metal-oxide-semiconductor Q4 to control LED drive power.
Wherein, resistance R13 is discharge resistance.
In addition, the above-mentioned light modulation toning controller based on input voltage control also includes EEPROM cell, it includes reading
Chip U3 is write, read-write chip U3 is connected with the main control chip U1.
In addition, be connected with TVS pipe TVS1 between the drain electrode of metal-oxide-semiconductor Q1 and source electrode, metal-oxide-semiconductor Q2 drain electrode and source electrode it
Between be connected with TVS pipe TVS2, TVS pipe TVS1 and TVS pipe TVS2 and each serve as anti-reverse effect, and transient absorption is greatly electric
Pressure, to ensure the safety of whole output unit.
TVS pipe TVS0 is also parallel between the both positive and negative polarity of input terminal P1, anti-reverse effect is played, and moment inhales
Significant voltage is received, to ensure the safety of whole input block.
Operationally, light modulation toning controller is when first powering on, on main control chip U1 and peripheral circuit after electricity time delay compared with
Short a period of time (generally 0.4-0.5 seconds), after waiting LED drive power floating voltage stabilization, by AD test sides pin
(P71 mouthfuls) judges the magnitude of voltage of LED drive power and exports colour temperature and the brightness of acquiescence.Light modulation mixes colours controller after the power-up,
Main control chip U1 starts timing program.Can set, if power-on time was not less than 1.5 seconds, the mark of main control chip U1 is set
Position flg is 0, if power-on time was more than 1.5 seconds, the flag bit flg of main control chip U1 is 1.When the exchange of LED drive power is opened
After shut-off is opened, the output electrochemical capacitor electric discharge of LED drive power, output voltage begins to decline, when light modulation toning controller detection
To after this downward trend, (P71 mouthfuls) output high level of the pin of main control chip U1 the 11st, metal-oxide-semiconductor Q4 conductings, discharge resistance R13 is to LED
The output electrochemical capacitor of driving power supply carries out repid discharge and is allowed to drop to a relatively low magnitude of voltage Vlow；Main control chip U1
After determining magnitude of voltage Vlow, EEPROM programs are write in startup.By in the value write-in U3 relevant positions of flag bit flg.When LED drives
The alternating-current switch of power supply is reclosed, and after light modulation toning controller is re-powered, main control chip U1 starts and reads EEPROM programs, reads
Take the value of read-write chip U3 relevant positions and update in flag bit flg.Before being illustrated if the value of flag bit flg is for 0 once
Power-on time be not above 1.5 seconds, main control chip U1 adjusts the dutycycle of PWM1 and PWM2 immediately, switch LED colour temperature and
Brightness.The different colour temperature of N kinds and brightness can be switched in principle；Previous upper electricity is illustrated if the value of flag bit flg is for 1
Time, single-chip microcomputer then kept the PWM1 and PWM duty cycle before power down more than 1.5 seconds, and corresponding LED colour temperatures and brightness are constant.It is single
Piece machine starts reading EEPROM programs and followed by starts timing program, the power-on time of record light modulation toning controller.
By the use habit of user, would not go to turn off the light by switch on wall immediately opening after switch on wall is turned on light, such as
Fruit needs to switch the colour temperature and luminance state of LED, it is only necessary to turns off switch on wall again in 1.5 seconds switch on wall is opened, waits again
It is the colour temperature and luminance state of changeable LED during secondary opening switch on wall.Have benefited from the utilization of EEPROM cell, be again turned on wall
The action of wall switch need not immediately be carried out after switch on wall is turned off, because even power down, the storage value of EEPROM cell is
Constant.
Further, power supply unit includes isolating diode D3 and electrochemical capacitor C2, the isolating diode D3 and institute
State electrochemical capacitor C2 series connection.Isolating diode D3 and electrochemical capacitor C2 constitute relatively independent power supply, be main control chip U1 and its
Peripheral circuit is provided and maintains power supply, it is ensured that when the alternating-current switch of LED drive power disconnects, the master control core of light modulation toning controller
Piece U1 and its peripheral circuit can maintain the power supply of a period of time, and main control chip U1 can accurately judge that the exchange of LED drive power is opened
The action that shut-off is opened
In addition, power supply unit is also including triode Q5, the triode Q5 is parallel on the electrochemical capacitor C2.
The upper electric timing of main control chip U1 and EEPROM store the zone bit information of timing, and this light modulation toning controller is not required to
The wide scope for achieving that light modulation toning controller with big capacity electrolyte capacitor (such as electrochemical capacitor C2) is input into, if using biography
The mode of system, in the case where input voltage (output voltage of correspondence LED driver) is relatively low, it is necessary to use larger electrolysis electricity
Appearance could realize that the power supply of main control chip U1 and its peripheral circuit in power down remained normal in 1-2 seconds, it is ensured that main control chip
U1 can interpolate that the on-off action of the alternating-current switch of LED drive power, so as to realize colour temperature and the brightness switching of LED.
The above-mentioned light modulation toning controller based on input voltage control, by setting fictitious load control unit, input electricity
The power supply unit of pressure detection unit and electrochemical capacitor C2 and isolating diode D3 compositions, is detected using input voltage measurement unit
The input voltage of LED drive power, and by the conducting of the metal-oxide-semiconductor Q4 in main control chip U1 control fictitious load control units, and then
Control discharge resistance R13's is switched on or switched off, it is ensured that the exchange for determining LED drive power exactly within the most short time is opened
The action of turning off the light closed, it is not necessary to the wide scope input of light modulation toning controller, Ji Nengshi are realized in the case of input bulky capacitor
The colour temperature of existing LED and brightness switching, flexibility are good, and matching LED drive power and light modulation toning controller are convenient.
The present embodiment additionally provides the light modulation toning control method based on input voltage control, and the method includes：
Time delay shorter a period of time after electricity on main control chip U1 and its peripheral circuit, wait the unloaded electricity of LED drive power
After pressure stabilization, the magnitude of voltage of LED drive power is judged by AD test sides pin and colour temperature and the brightness of acquiescence is exported；When LED drives
After the alternating-current switch of dynamic power supply disconnects, the output electrochemical capacitor electric discharge of LED drive power, output voltage begins to decline, and works as input
Voltage detection unit to after this downward trend, by signal transmission in AD test sides pin, the pin of single-chip microcomputer U1 the 11st output high level,
Metal-oxide-semiconductor Q4 is turned on, and discharge resistance R13 carries out repid discharge and is allowed to drop to one to the output electrochemical capacitor of LED drive power
Individual relatively low magnitude of voltage Vlow；After the alternating-current switch of LED drive power is specified upon opening to be again switched in the time, LED drives
The output voltage of dynamic power supply rises very rapidly up to normal voltage value again, and main control chip U1 detects LED drive power output electricity
After the decline of pressure and uphill process, the dutycycle of the PWM1 and PWM2 of main control chip U1 is adjusted immediately, switch the colour temperature of LED and bright
Degree.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (8)
1. the light modulation toning controller for being controlled based on input voltage, it is characterised in that including input block, power supply unit, input
Voltage detection unit, main control chip U1, output unit and fictitious load control unit；The input block, it drives electricity with LED
Source connects, input voltage to the main control chip U1；Said supply unit is respectively the input voltage measurement unit, master control core
Piece U1, output unit and fictitious load control unit provide power supply；The input voltage measurement unit, its detection LED drives electricity
The input voltage in source, and be input into the main control chip U1, the fictitious load control is controlled by the main control chip U1 output signals
Unit processed, with indirect control output unit；The output unit, it is connected with light fixture；The fictitious load control unit, it is in institute
State under the control of main control chip U1, output signal control LED drive power is discharged.
2. it is as claimed in claim 1 to be based on the light modulation toning controller that input voltage is controlled, it is characterised in that the input electricity
Pressure detection unit includes voltage R1, R2, R3, wherein, be grounded after described resistance R2, R3 parallel connection, the voltage R1 respectively with it is described
Resistance R2, R3 connect, and the voltage R1 is connected with the AD test sides pin and power supply unit of the main control chip U1 respectively.
3. it is as claimed in claim 1 to be based on the light modulation toning controller that input voltage is controlled, it is characterised in that the input list
Unit includes the input terminal P1 being connected with power supply unit.
4. it is as claimed in claim 3 to be based on the light modulation toning controller that input voltage is controlled, it is characterised in that the output list
Unit include lead-out terminal P2 and metal-oxide-semiconductor Q1, Q2, triode Q3, described metal-oxide-semiconductor Q1, Q2 respectively with the input terminal P1 it
Between by export electrochemical capacitor C14, C13 connect, the grid of described metal-oxide-semiconductor Q1, Q2 is connected with the main control chip U1, described
The drain electrode of metal-oxide-semiconductor Q1, Q2 is connected with lead-out terminal P2 respectively, the source ground of the metal-oxide-semiconductor Q1, the source electrode of the metal-oxide-semiconductor Q2
It is grounded, and the grid of the metal-oxide-semiconductor Q2 is grounded by resistance R21, the source electrode of the metal-oxide-semiconductor Q2 is also associated with and the master control core
The triode Q3 of piece U1 connections.
5. it is as claimed in claim 4 to be based on the light modulation toning controller that input voltage is controlled, it is characterised in that the fictitious load
Control unit includes metal-oxide-semiconductor Q4 and resistance R12, R25, R13, and the drain electrode of the metal-oxide-semiconductor Q4 passes through resistance R13 and lead-out terminal
P2 is connected, and the source electrode of the metal-oxide-semiconductor Q4 is connected with the emitter stage of the triode Q3, and the grid of the metal-oxide-semiconductor Q4 passes through resistance
R25 is connected with the colelctor electrode of the metal-oxide-semiconductor Q4, and the grid of the metal-oxide-semiconductor Q4 passes through resistance R12 with the main control chip U1's
Output end pin is connected, by the electric discharge for controlling the conducting of metal-oxide-semiconductor Q4 to control LED drive power.
6. as described in any one of claim 1 to 5 based on input voltage control light modulation mix colours controller, it is characterised in that
Said supply unit includes that isolating diode D3 and electrochemical capacitor C2, the isolating diode D3 go here and there with the electrochemical capacitor C2
Connection.
7. it is as claimed in claim 6 to be based on the light modulation toning controller that input voltage is controlled, it is characterised in that the power supply list
Also including triode Q5, the triode Q5 is parallel on the electrochemical capacitor C2 for unit.
8. the light modulation toning control method for being controlled based on input voltage, it is characterised in that methods described includes：
Time delay shorter a period of time after electricity on main control chip U1 and its peripheral circuit, wait LED drive power floating voltage steady
After fixed, the magnitude of voltage of LED drive power is judged by AD test sides pin and colour temperature and the brightness of acquiescence is exported；When LED drives electricity
After the alternating-current switch in source disconnects, the output electrochemical capacitor electric discharge of LED drive power, output voltage begins to decline, and works as input voltage
Detection unit to after this downward trend, by signal transmission in AD test sides pin, the pin of single-chip microcomputer U1 the 11st output high level, metal-oxide-semiconductor
Q4 is turned on, discharge resistance R13 the output electrochemical capacitor of LED drive power is carried out repid discharge and being allowed to drop to one it is relatively low
Magnitude of voltage Vlow；After the alternating-current switch of LED drive power is specified upon opening to be again switched in the time, LED drive power
Output voltage rise very rapidly up to normal voltage value again, main control chip U1 is detected under LED drive power output voltage
After drop and uphill process, the dutycycle of the PWM1 and PWM2 of main control chip U1 is adjusted immediately, switch colour temperature and the brightness of LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177015.9A CN106937443B (en) | 2017-03-22 | 2017-03-22 | Light modulation toning controller and its method based on input voltage control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177015.9A CN106937443B (en) | 2017-03-22 | 2017-03-22 | Light modulation toning controller and its method based on input voltage control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106937443A true CN106937443A (en) | 2017-07-07 |
| CN106937443B CN106937443B (en) | 2018-07-31 |
Family
ID=59432666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710177015.9A Active CN106937443B (en) | 2017-03-22 | 2017-03-22 | Light modulation toning controller and its method based on input voltage control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106937443B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809821A (en) * | 2017-10-23 | 2018-03-16 | 东莞达文西光电有限公司 | A kind of pressure-controlled dimming driving circuit |
| CN107959991A (en) * | 2017-10-23 | 2018-04-24 | 东莞达文西光电有限公司 | A kind of dimming driving circuit |
| CN109922584A (en) * | 2019-03-18 | 2019-06-21 | 成都启英泰伦科技有限公司 | A kind of color-changing festoon lamp sound control method and equipment |
| CN112689356A (en) * | 2021-01-08 | 2021-04-20 | 青岛易来智能科技股份有限公司 | Switch control circuit and method and lamp |
| CN114466481A (en) * | 2021-12-31 | 2022-05-10 | 珠海雷特科技股份有限公司 | Circuit and method for detecting no-load of LED constant-voltage driving power supply and LED driver |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201657438U (en) * | 2010-04-22 | 2010-11-24 | 彭孟展 | Adjustable optical drive circuit compatible to silicon controlled light modulator |
| CN103269538A (en) * | 2010-06-03 | 2013-08-28 | 建准电机工业股份有限公司 | Control module with power supply detection function and lamp consisting of control module |
| JP2015125800A (en) * | 2013-12-25 | 2015-07-06 | 株式会社小糸製作所 | Vehicle lamp |
| CN206932433U (en) * | 2017-03-22 | 2018-01-26 | 佛山市旺科电子科技有限公司 | Light modulation toning controller based on input voltage control |
-
2017
- 2017-03-22 CN CN201710177015.9A patent/CN106937443B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201657438U (en) * | 2010-04-22 | 2010-11-24 | 彭孟展 | Adjustable optical drive circuit compatible to silicon controlled light modulator |
| CN103269538A (en) * | 2010-06-03 | 2013-08-28 | 建准电机工业股份有限公司 | Control module with power supply detection function and lamp consisting of control module |
| JP2015125800A (en) * | 2013-12-25 | 2015-07-06 | 株式会社小糸製作所 | Vehicle lamp |
| CN206932433U (en) * | 2017-03-22 | 2018-01-26 | 佛山市旺科电子科技有限公司 | Light modulation toning controller based on input voltage control |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809821A (en) * | 2017-10-23 | 2018-03-16 | 东莞达文西光电有限公司 | A kind of pressure-controlled dimming driving circuit |
| CN107959991A (en) * | 2017-10-23 | 2018-04-24 | 东莞达文西光电有限公司 | A kind of dimming driving circuit |
| CN107809821B (en) * | 2017-10-23 | 2019-07-02 | 东莞达文西光电有限公司 | A kind of pressure-controlled dimming driving circuit |
| CN107959991B (en) * | 2017-10-23 | 2020-05-05 | 扬州艾笛森光电有限公司 | Dimming drive circuit |
| CN109922584A (en) * | 2019-03-18 | 2019-06-21 | 成都启英泰伦科技有限公司 | A kind of color-changing festoon lamp sound control method and equipment |
| CN112689356A (en) * | 2021-01-08 | 2021-04-20 | 青岛易来智能科技股份有限公司 | Switch control circuit and method and lamp |
| CN112689356B (en) * | 2021-01-08 | 2023-11-10 | 青岛易来智能科技股份有限公司 | Switch control circuit and method and lamp |
| CN114466481A (en) * | 2021-12-31 | 2022-05-10 | 珠海雷特科技股份有限公司 | Circuit and method for detecting no-load of LED constant-voltage driving power supply and LED driver |
| CN114466481B (en) * | 2021-12-31 | 2024-03-29 | 珠海雷特科技股份有限公司 | Circuit and method for detecting no-load of LED constant-voltage driving power supply and LED driver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106937443B (en) | 2018-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106937443B (en) | Light modulation toning controller and its method based on input voltage control | |
| CN101459993B (en) | Background lamp apparatus for control panel and control apparatus thereof | |
| CN205490915U (en) | Power saving intelligence cat eye | |
| CN205491333U (en) | Classroom LED intelligence lighting system | |
| CN101711079A (en) | Classroom illumination wireless detection and control device and method | |
| CN205514408U (en) | Floor sweeping robot | |
| CN105307315A (en) | Color LED lamp string driving circuit and LED lamp string | |
| CN104968102B (en) | A kind of light modulation color-temperature regulating LED lamp circuit and LED lamp | |
| CN203761654U (en) | Digital adaptive type dimming power supply | |
| CN206459424U (en) | A kind of master control/driving integrated controller applied in frequency-conversion freezer | |
| CN205160866U (en) | Wireless Intelligence panel -switch that human response in area and illumiinance were surveyed | |
| CN206932433U (en) | Light modulation toning controller based on input voltage control | |
| CN202121699U (en) | Ambient light brightness detection remote controller | |
| CN206118124U (en) | But low pressure is remote control light modulation lamp cluster regularly | |
| US9066398B2 (en) | Method for reducing standby power consumption | |
| CN203563248U (en) | Control circuit for lighting-emergency dual-purpose sensor light | |
| CN101309010A (en) | Power factor compensator having LED lighting lamp | |
| CN103079310B (en) | Dimming control circuit for spotlight | |
| CN106686845A (en) | Microwave sensing dimming circuit with emergency mode, and lamp | |
| CN206620344U (en) | A kind of light modulation toning circuit of light fixture | |
| CN206865786U (en) | Intelligent led lamp control circuit | |
| CN203731133U (en) | LED light engine module and lighting device | |
| CN201663747U (en) | Wireless detection and control device for lighting in classroom | |
| CN201967196U (en) | Electronic light modulator | |
| CN203645882U (en) | LED driving circuit for changing luminescent colors with cooperation of power switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |