CN110022628A - Linearity light adjusting intelligent digital power supply - Google Patents
Linearity light adjusting intelligent digital power supply Download PDFInfo
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- CN110022628A CN110022628A CN201810020024.1A CN201810020024A CN110022628A CN 110022628 A CN110022628 A CN 110022628A CN 201810020024 A CN201810020024 A CN 201810020024A CN 110022628 A CN110022628 A CN 110022628A
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- 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
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
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- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
-
- 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]
-
- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to a kind of linearity light adjusting intelligent digital power supplys characterized by comprising main loop of power circuit unit, the main loop of power circuit unit have input terminal and output end；Dimming control unit, the linearity light adjusting control unit include that PWM output adjusts unit, and the dimming control unit adjusts the output power of main loop of power circuit by controlling PWM output duty cycle；The dimming control unit receives the PWM duty cycle of external control signal setting and is modified to the PWM duty cycle of external control signal setting；The acquiring electric energy information unit is used to acquire the input terminal of the main loop of power circuit and the energy data of output end；Including voltage and current data.
Description
Technical field
The present invention relates to linearity light adjusting intelligent digital power supplys
Background technique
Power supply is common electrical equipment control device, but power supply in the prior art has the following aspects:
1. the Technology application of the industrial lightings such as current electric ballast, driving power, Switching Power Supply, industrial transformers driving, all with mould
Quasi- light regulating technology, controllable silicon light modulation, sectional dimming technology, these technologies are easy to be influenced by the variation loaded cannot be good
Linearity light adjusting that in other words cannot well accurately is dimmed, linear cannot be dimmed.2. current driving power, Switching Power Supply solution
Static light regulating technology is released, i.e., will not realize linear adjustment because load variation, environmental change, user are accustomed to variation.3. driving at present
Dynamic power supply, Switching Power Supply are all to have per se with transformer secondary power supply technique, this purpose defect be to allow engagement positions be in
In machine state, the key service life software such as electrolytic capacitor is constantly in working condition, greatly reduces the service life of engagement positions.4. at present
Driving power, Switching Power Supply are all without acquiring electric energy information and analysis and processing unit, and will cause will not become according to environment
Change realization Serial regulation.5. current driving power, Switching Power Supply are all to realize the switch of major loop using relay switch function
Function, relay belong to inductive element unlatching be peak value it is higher to below rectify before answer force request to improve, and relay exist
On-off times and response time not in time the shortcomings that, so that the service life of driving power is reduced significantly and has been responded load supplying
Timeliness.6, control mode is not flexible in different seasons and special weather, scattered lamps and lanterns and wide Regional Distribution,
The inconvenience of control management is brought, control interface is not intuitive, and energy waste is serious, and failure inspection is costly, maintenance and maintenance
Trouble.
Summary of the invention
An object of the present invention is that in order to overcome the shortcomings in the prior art, providing one kind can linear regulation circuit output
Linearity light adjusting digital power.
In order to achieve the above object, the invention is realized by the following technical scheme:
Linearity light adjusting intelligent digital power supply characterized by comprising
Main loop of power circuit unit, the main loop of power circuit unit have input terminal and output end；
Dimming control unit, the linearity light adjusting control unit include that PWM output adjusts unit, the dimming control unit
The output power of main loop of power circuit is adjusted by controlling PWM output duty cycle；The dimming control unit receives external control letter
Number setting PWM duty cycle and to external control signal setting PWM duty cycle be modified, the correction value=setting value ×
Transfer efficiency × power factor；
The transfer efficiency calculation formula is η=Po/Pin, wherein " η " represents the transfer efficiency of power supply, " Po " represents defeated
Power out, calculation formula are Po=Uo × Io, and " Uo " represents output voltage, and " Io " represents output electric current, pass through the product of the two
Calculate " Po "；Pin " represents input power, and calculation formula is Pin=Ui × Iin, and " Ui " represents input voltage, and " Iin " is represented
Input current calculates " Pin " by the product of the two；
Power factor can determine according to input terminal voltage and current values；
Acquiring electric energy information unit, the acquiring electric energy information unit be used for acquire the main loop of power circuit input terminal and
The energy data of output end；Including voltage and current data；
It dims computing unit, the light modulation computing unit and the acquiring electric energy information unit communication and is controlled with the light modulation
Unit communication processed；The data of acquisition are transferred to the light modulation computing unit by the acquiring electric energy information unit, and are counted through light modulation
It calculates and is transferred to dimming control unit after unit calculates, the dimming control unit is according to the calculated result received, amendment output PWM
Duty ratio adjusts main loop of power circuit output.
It according to one embodiment of present invention, further include communication unit, the communication unit is externally input for receiving
Signal is controlled, and is transferred to dimming control unit, determines that PWM duty cycle is set according to control signal by the dimming control unit
Value or by dimming control unit be transferred to light modulation computing unit PWM duty cycle setting value is determined by light modulation computing unit again.
According to one embodiment of present invention, high_voltage isolation is additionally provided between the communication unit and dimming control unit
Driving unit.
According to one embodiment of present invention, further include using terminal, the using terminal by the communication unit with
The light control unit communication；The using terminal is used for input control order, and is converted to control signal and is conveyed to communication unit
Member.
It according to one embodiment of present invention, further include environmental parameter detection unit, the environmental parameter detection unit is used
It is transferred to light modulation computing unit and/or dimming control unit in detection environmental parameter, and by ambient parameter data, is calculated by light modulation
Unit and/or dimming control unit determine the PWM duty cycle setting value under the environmental parameter.
It according to one embodiment of present invention, further include Standby current supply circuit unit, the Standby current supply circuit
Unit is electrically connected with other circuit units, is powered for other circuits.
It according to one embodiment of present invention, further include Sofe Switch, the Sofe Switch is electrically connected with the dimming control unit
It connects, for controlling the on and off of main loop of power circuit；The dimming control unit controls the Sofe Switch work.
According to one embodiment of present invention, further include electrical energy parameter processing unit, the electrical energy parameter processing unit with
The acquiring electric energy information unit communication connection is sent to after the energy data decoding for acquiring acquiring electric energy information unit
Dim computing unit.
Mesh of the present invention is according to acquiring electric energy information unit, electrical energy parameter processing unit, digital dimming computing unit, environment ginseng
Number detection unit, communication unit realize linearity light adjusting problem to do data analysis.
Standby current supply circuit unit is had inside apparatus of the present invention power supply area, is usually in standby, is cut off main function
Rate loop circuit cuts off main loop of power circuit circuit by dimming control unit.But when environment changes, including environment
Transformation, seasonal variations, illuminance variation, point transformation, wagon flow, the stream of people, temperature when changing, main loop of power circuit circuit is opened
It opens, to extend the service life of main loop of power circuit circuit.It is defeated that there is the present invention acquiring electric energy information unit, basis to collect
Enter to export energy information, be sent to electrical energy parameter processing unit and handled, the data after processing are sent to digital tune
Optical oomputing unit is sent to dimming control unit after being calculated by digital dimming computing unit and executes control, and purpose is in order to reach line
Property the accurate light modulation of light modulation, improve whole efficiency；
The present invention is the physical characteristic for removing relay and utilizing principle, realizes firmware Sofe Switch function, when solving booting
Spike problem responds problem, service life on-off times problem etc. not in time, substantially prolongs the service life problem of the present apparatus.
1. apparatus of the present invention can realize that linearity light adjusting calculates very well, it can accomplish accurately to control output, have reached accurate section
It can control purpose；
2. the present invention realizes Sofe Switch control function, hard switching bring surge impact function is reduced；
3. main circuit of the present invention is in a standby mode, when changing dynamic regulation output because environment sets out, realize fine
Energy Efficiency Ratio；
4. the intelligent control of pair LED light improves 55% fractional energy savings, 80% LED service life is improved, improves 60% energy
Effect ratio；
5. dynamic incudes linear light regulating technology, reduce the energy consumption of no thin and weak man, compared with Traditional control, at least reduces by 50%
CO2Discharge；
6. calculating sun set/raise time by GPS longitude and latitude and season, in the world zero setting, automatic adjustment illumination is opened
Close the time；
7. failure initiative alarming, rapid GPS display positioning, maintenance maintenance is convenient, reduces by 90% human cost；
8. mobile terminal monitoring and failure notification, improve 70% work execution efficiency；
9. detection haze automatically, total solar eclipse, wagon flow, heavy rain, the environment such as dense fog carry out multiple linkage Lighting control；
10. ensure that the safety of whole system control and the safety of big data information with encryption technology.
11. multistage operations permission controls, the inquiry of historical data statistics, electrical energy measurement trend analysis, pre-payment control system.
12. when network outage, for built-in Off-line control strategy from control is transported, it is long that built-in bulk storage saves continuous data
Up to 60 days.
13. can be widely applied on the intelligent control lamps and lanterns of the various scenes such as highway, common road, road；
Detailed description of the invention
Fig. 1 is that the linearity light adjusting intelligent digital power supply in the present invention refines topological structure schematic diagram.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
As shown in Figure 1, linearity light adjusting intelligent digital power supply comprising main loop of power circuit unit, dimming control unit 11, electricity
It can information acquisition unit 1, light modulation computing unit 16, communication unit 13, environmental parameter detection unit 14, Standby current supply circuit
Unit 6.
The main loop of power circuit unit has input terminal and output end；It further include SPD lightning protection unit 2, EMC electromagnetic compatibility list
Member 3, rectification filtering unit 4, PFC transformation driving unit 5, LLC Half Bridge Quasi Resonant driving unit 8, output finishing 9 and of control unit
Feedback unit 10.
The SPD lightning protection unit 2, the unit main purpose are when the digital dimming device is for open air and by thunder
After hitting, the overvoltage energy that thunder and lightning generates is absorbed, is released.It is excessively electric to the operation for entering the digital dimming device simultaneously
Pressure, Frequency Transient Overvoltage impact and the surge voltage entered by AC input line etc. also have absorption and the effect of releasing.The unit
Play the role of that rear class electronic component is protected to lead to damage from surge over voltage.
The EMC electromagnetic compatibility unit 3, the unit can filter out the conduction for being generated from the device itself and being issued to outside
Noise jamming can avoid the normal work for influencing other electronic equipments under same electromagnetic environment；Simultaneously play inhibition and decaying by
The noise and signal interference that the external world generates.The unit in route common mode and DM EMI signal have it is good inhibition and decline
Subtract effect.
The rectification filtering unit 4, the bridge rectifier unit mainly utilize the diode group being packaged as a whole by four
At bridge realize and convert the alternating voltage for having been subjected to SPD unit and EMC unit to the DC voltage of pulsation.The DC voltage
By the input voltage as PFC module unit.
The PFC converts driving unit 5, and the unit is using the circuit of BOOST topology formation to by bridge rectifier list
The current signal that member enters carries out phasing, and current signal is made to follow voltage signal as far as possible, improves PF (power factor) value, with
Improve utilization rate of electrical.The active PFC is made of inductance, capacitor, MOSFET, application-specific integrated circuit and related auxiliary electron component,
Adjustable current waveform compensates the phase difference Current Voltage, makes final power factor up to 98% or more, while can
Significantly reduce total harmonic distortion.Circuit is simple in the module, output voltage ripple very little, has remarkable advantage.In topological diagram
Shown, PFC inductance L1 stores energy when MOS switch pipe Q1 is connected, and in switching tube cut-off, induces on inductance L1 right positive left
Negative voltage, the energy stored when by conducting charge to big filter capacitor C1 by booster diode D1, energy are exported, at this
PFC driving unit carries out phase compensation adjustment according to the current signal acquired on R1 during a, is finally reached and carries out to PF value
The purpose of correction.
Voltage after the adjustment of prime PFC unit is passed through LLC resonance oscillation semi-bridge by the LLC Half Bridge Quasi Resonant driving unit 8
After topological circuit and high-frequency isolation transformer, DC to DC transformation is realized.(Lr is isolating transformer leakage by Q2, Q3, Cr, Lm, Lr
Sense), D5, D6, D7, D8 constitute LLC half-bridge resonance topology.In the course of work will efficiently use transformer leakage inductance Lr, by Cr,
Lm, Lr three's resonance realize the ZVS (no-voltage conducting) of primary side Q2, Q3 and (the zero current pass ZCS of secondary side D5, D6, D7, D8
It is disconnected), voltage and current crossover loss when reducing Q2, Q3 conducting reduces D5, D6, D7, D8 reverse current, promotes power supply whole efficiency.
Control unit 9 is modified in the output, and the voltage that prime isolating transformer is converted passes through D5, D6, D7, D8 tetra-
It after a diode full-bridge rectification, then filters through C5, provides burning voltage electric current for rear class LED module.
The feedback unit 10 includes voltage feedback section and current feedback part.Voltage feedback section will export electricity
Real-time condition feedback is pressed to stabilize the output voltage, provide for successive load by adjusting driving frequency to primary side half bridge drive unit
Conducting voltage.Current feedback part will export electric current and be sampled by sense resistance R6, will collect current data information, feed back
To intelligent digital control unit, intelligent dimming is realized.
The linearity light adjusting control unit 11 includes that PWM output adjusts unit, and the dimming control unit passes through control
PWM output duty cycle adjusts the output power of main loop of power circuit；The dimming control unit receives external control signal setting
PWM duty cycle is simultaneously modified the PWM duty cycle of external control signal setting, the correction value=setting value × transfer efficiency
× power factor.The transfer efficiency calculation formula is η=Po/Pin, wherein " η " represents the transfer efficiency of power supply, " Po " is represented
Output power, calculation formula are Po=Uo × Io, and " Uo " represents output voltage, and " Io " represents output electric current, pass through multiplying for the two
Product calculates " Po "；Pin " represents input power, and calculation formula is Pin=Ui × Iin, and " Ui " represents input voltage, " Iin " generation
Table input current calculates " Pin " by the product of the two；Power factor can determine according to input terminal voltage and current values；
The acquiring electric energy information unit 1 is used to acquire the input terminal of the main loop of power circuit and the electric energy number of output end
According to；Including voltage and current data；1) it after input terminal access alternating current, is acquired by voltage transformer pt 1, Current Transmit 1
To the current data and voltage data of input terminal, the high-precision function metering core of SPI and UART communication interface is had by one
Piece, decoding are sent to dimming control unit；2) collects the electric current of output end by copper-manganese after output enters and works normally,
And by be decoded to voltage, the electric current of output be sent to dimming control unit；By electric energy (voltage, electric current, the function of input terminal
Rate factor) information and output end (voltage, electric current) energy information all decode after calculating entered by embedded digital computing unit；
3) the electric energy acquisition unit is in AC input front end, including Current Transmit 1 and voltage transformer pt 1, and CT1 effect is pair
AC input current data is acquired using the current information input data as electrical energy parameter processing unit, and PT1 effect is pair
Voltage data is acquired using the voltage input data as electrical energy parameter processing unit between AC input L and N.Current Mutual Inductance
Device CT1 and voltage transformer pt 1 have the characteristics that small in size, precision is high, consistency is good.4) will be adopted by manganese-copper filament element RS1
Sample exports electric current and voltage data, and intelligent digital control unit .5 is sent to after decoding) electrical energy parameter processing unit 7 is at calculating
Reason, calculated result demodulate in light control unit 11, send corresponding control signal to anti-finally by dimming control unit 11
Unit 10 is presented, this purpose is precisely controlled control duty ratio to reach, real-time to implement adjusting, frequency control based on maintenance different zones
Adaptation threshold value, can be used instantaneous time starting and close.When there is a load present, various coefficients be can use to voltage, electric current
Compensation is adjusted, while using Sofe Switch function, can be extended to avoid the generation of surge and the service life of on-off times, and reduction has
Noise is imitated, and finally realizes linearity light adjusting function；
The electrical energy parameter processing unit 7 is communicated to connect with the acquiring electric energy information unit 1, for adopting energy information
Light modulation computing unit 16 is sent to after the energy data decoding that collection unit 1 acquires.By voltage transformer pt 1, Current Transmit 1
The electric current and voltage data for collecting input terminal have the high-precision function metering core of SPI and UART communication interface by one
Piece, decoding is sent to dimming control unit 11 and light modulation computing unit 16, while output electricity will be sampled by manganese-copper filament element RS1
Stream and voltage data are sent to intelligent digital control unit 11 and light modulation computing unit 16 after decoding.
The light modulation computing unit 16 communicated with the acquiring electric energy information unit 1 and with the dimming control unit 11
Communication；The data of acquisition are transferred to the light modulation computing unit 16 by the acquiring electric energy information unit 1, and calculate list through light modulation
Member 16 is transferred to dimming control unit 11 after calculating, the dimming control unit 11 is according to the calculated result received, amendment output
PWM duty cycle adjusts main loop of power circuit output.
In addition, further, light modulation computing unit control can also include: (1) according to voltage sample numerical value and voltage
Reference value obtains voltage deviation value=voltage reference value-voltage sample value；(2) it is exported according to the ratio value and integrated value
It is worth result=ratio value+integrated value, and the output is adjusted, makes it through output valve and change within the scope of 0~180 °；
(3) integrated value is adjusted and clipping, ratio value and integrated value is obtained after processing.In the present invention, replaced with digitizing solution
Simulation control, can eliminate the conventional simulations adjuster such as temperature drift and be difficult to the shortcomings that overcoming, and be conducive to carry out linear well
Control, parameter tuning and variable parameter control, convenient for easily adjusting control model by the change of program software；Scheme and realization
Various new control strategy, while the number of component can be reduced, weight is alleviated, shorten the development cycle, simplify hardware knot
Structure, to improve the reliability of system.
Further, the initialization initialized including intelligent digital unit, peripheral module initialize and to the overall situation
Variable is initialized；The intelligent digital control unit initialization specifically: high-speed peripheral is arranged in setting system clock frequency
HISPCP and low-speed peripheral LOSPCP register are arranged I/O mouthfuls of multiplexings and control register, and general GPIOx mouthfuls each pin is defined
For basic function or peripheral functionality；The peripheral module initialization specifically: ADC analog-to-digital conversion module is initialized, and
PWM, ON/OFF are initialized.
The communication unit 13 is transferred to dimming control unit 11 for receiving externally input control signal, by institute
Dimming control unit 11 is stated to determine PWM duty cycle setting value according to control signal or be transferred to light modulation by dimming control unit 11
Computing unit 16 determines PWM duty cycle setting value by light modulation computing unit 16 again.
The communication unit 13 is RS-485 bus communication control unit, 1) this functional unit RS-485 bus interface is
A kind of common serial ports has many advantages, such as to be connected to the network convenience, good in anti-interference performance, long transmission distance.RS-485 transceiver is adopted
With balance transmission and differential received, therefore there is the ability for inhibiting common mode interference, in addition transceiver has high sensitivity, can examine
The voltage down to 200mv is measured, the transmission range of reliable communication is up to thousands of rice.Using RS-485 bus networking, a pair is only needed
Twisted pair achieves that multisystem networking composition distributed system, equipment is simple, cheap, communication distance is long；2) work as user
In the setting of PC terminal, by the corresponding digital code of the Parameter Switch of design, it is assigned to functional unit [11], functional unit
[11] order is judged and control according to the data just received, proves dimmer command when singly receiving " code 0011 ", works as user
It is represented when inputting 1-10 and exports corresponding light modulation value, prove that receiving is switching on and shutting down when the code received is " 0010 "
Order, prove to receive when user inputs " 1 " is " shutdown " order, but proves that is received " opens when user's input " 0 "
Machine " order；3) it when present apparatus access host computer, receives the corresponding command code and executes the corresponding command；
The environmental parameter detection unit 14 is transferred to light modulation meter for detecting environmental parameter, and by ambient parameter data
Unit and/or dimming control unit are calculated, is determined under the environmental parameter by light modulation computing unit and/or dimming control unit
PWM duty cycle setting value.1) this cell arrangement of is usually in standby, and when environment changes, environment transformation includes season
Section variation, illuminance variation, point transformation, wagon flow, the stream of people, temperature carried out according to built-in default scene when changing it is linear
Adjustment；2) this cell arrangement of has timed switching function, and control mode is not flexible in different seasons and special weather, and zero
Scattered lamps and lanterns and wide Regional Distribution bring the inconvenience of control management, and control interface is not intuitive, and energy waste is serious,
Failure inspection is costly, maintenance and maintenance trouble.3) this cell arrangement of can be in the case where default parameters be set, can be intelligent
Turn on light, turn off the light, dim, and have fault alarm, fault location, management information push, environment sensing, electric energy system
Meter, electricity charge report form statistics report, local device monitoring, remote device monitoring, mobile device monitor function.
The using terminal can be PC computer, mobile phone, tablet computer etc., 1) this cell arrangement of is that user conveniently sets
Set output parameter adjusting, user according to environment, load change, the corresponding output parameter of setting, facilitate user flexibility use and
Output parameter is set；2) when user PC terminal be arranged when, by the corresponding digital code of the Parameter Switch of design, be assigned to
Functional unit [11], functional unit [11] judges and control order according to the data just received, when singly receiving " code 0011 "
Dimmer command is proved, is represented when user inputs 1-10 and exports corresponding light modulation value, when the code received is " 0010 "
It is switching on and shutting down order that proof, which receives, and prove to receive when user inputs " 1 " is " shutdown " order, but user inputs
" booting " order received is proved when " 0 "；3) receives the code by encryption by decoding when present apparatus access host computer
Afterwards, statistics the corresponding command code executes the corresponding command conveying function；
The Standby current supply circuit unit 6 is electrically connected with other circuit units, is powered for other circuits.Pass through
AC alternating voltage is transformed into reliable and stable D/C voltage by flyback converter.For dimming control unit 11, the VCC of major loop IC
Unit, communication unit 13, electrical energy parameter processing unit 7 provide Standby power supply necessary function of supplying power, usually cut off major loop and supply
Electricity extends the service life of major loop electronic component.In the environmental parameter triggering detected when rear end environmental parameter detection unit 14
When connecting main loop of power circuit or rear end RS-485 bus marco connects main loop of power circuit or passes through tune when sending command adapted thereto
Light control unit 11 connects main loop of power circuit.
The Sofe Switch 17 is electrically connected with the dimming control unit 11, for controlling the on and off of main loop of power circuit；Institute
It states dimming control unit 11 and controls the work of Sofe Switch 17.This unit realizes that output is solid using the physical characteristic of main loop unit
Part closes hardware capability, improves the on-off times of entire linearity light adjusting power supply, the high efficiency of dimming power source, also extended to make
Use the service life.Detected when rear end environmental parameter detection unit 14 environmental parameter triggering connect main loop of power circuit when or rear end
RS-485 bus marco connects main loop of power circuit when sending command adapted thereto.
The present invention is additionally provided with high_voltage isolation driving unit 12, this functional unit is protection from power grid there are purpose and bears
Good quarantine measures are realized between load, proof load and communication unit 13 realize quarantine measures, not will receive external environment
Interference and the interference from power grid itself.
Embodiment in the present invention is only used for that the present invention will be described, and is not construed as limiting the scope of claims limitation,
Other substantially equivalent substitutions that those skilled in that art are contemplated that, all fall in the scope of protection of the present invention.
Claims (9)
1. linearity light adjusting intelligent digital power supply characterized by comprising
Main loop of power circuit unit, the main loop of power circuit unit have input terminal and output end；
Dimming control unit, the linearity light adjusting control unit include that PWM output adjusts unit, and the dimming control unit passes through
Control PWM output duty cycle adjusts the output power of main loop of power circuit；The dimming control unit receives external control signal and sets
The PWM duty cycle set simultaneously is modified the PWM duty cycle of external control signal setting, the correction value=setting value × conversion
Efficiency × power factor；
The transfer efficiency calculation formula is η=Po/Pin, wherein " η " represents the transfer efficiency of power supply,
" Po " represents output power, and calculation formula is Po=Uo × Io, and " Uo " represents output voltage, and " Io " represents output electric current,
" Po " is calculated by the product of the two；
Pin " represents input power, and calculation formula is Pin=Ui × Iin, and " Ui " represents input voltage, and " Iin " represents input electricity
Stream, calculates " Pin " by the product of the two；
Power factor can determine according to input terminal voltage and current values；
Acquiring electric energy information unit, the acquiring electric energy information unit are used to acquire input terminal and the output of the main loop of power circuit
The energy data at end；Including voltage and current data；
Dim computing unit, the light modulation computing unit and the acquiring electric energy information unit communication and with the brightness adjustment control list
Member communication；The data of acquisition are transferred to the light modulation computing unit by the acquiring electric energy information unit, and calculate list through light modulation
Member is transferred to dimming control unit after calculating, the dimming control unit is according to the calculated result received, amendment output PWM duty
Than adjusting main loop of power circuit output.
2. linearity light adjusting intelligent digital power supply according to claim 1, which is characterized in that it further include communication unit, it is described
Communication unit is transferred to dimming control unit for receiving externally input control signal, by the dimming control unit root
It determines PWM duty cycle setting value according to control signal or light modulation computing unit is transferred to by dimming control unit and calculated again by light modulation
Unit determines PWM duty cycle setting value.
3. linearity light adjusting intelligent digital power supply according to claim 2, which is characterized in that it further include using terminal, it is described
Using terminal is communicated by the communication unit with the light control unit；The using terminal is used for input control order, and
It is converted to control signal and is conveyed to communication unit.
4. linearity light adjusting intelligent digital power supply according to claim 2, which is characterized in that the communication unit and light modulation are controlled
High_voltage isolation driving unit is additionally provided between unit processed.
5. linearity light adjusting intelligent digital power supply according to claim 1, which is characterized in that further include that environmental parameter detection is single
Member, the environmental parameter detection unit for detecting environmental parameter, and by ambient parameter data be transferred to light modulation computing unit and/
Or dimming control unit, determine that the PWM duty cycle under the environmental parameter is set by light modulation computing unit and/or dimming control unit
Definite value.
6. linearity light adjusting intelligent digital power supply according to claim 1, which is characterized in that further include that Standby powers back
Road unit, the Standby current supply circuit unit are electrically connected with other circuit units, are powered for other circuits.
7. linearity light adjusting intelligent digital power supply according to claim 1, which is characterized in that it further include Sofe Switch, it is described soft
Switch is electrically connected with the dimming control unit, for controlling the on and off of main loop of power circuit；The dimming control unit control
The Sofe Switch work.
8. linearity light adjusting intelligent digital power supply according to claim 1, which is characterized in that further include that electrical energy parameter processing is single
Member, the electrical energy parameter processing unit are connect with the acquiring electric energy information unit communication, are used for acquiring electric energy information unit
Light modulation computing unit is sent to after the energy data decoding of acquisition.
9. linearity light adjusting intelligent digital power supply according to claim 1, which is characterized in that the main loop of power circuit unit packet
Include the lightning protection device unit being sequentially connected electrically, electromagnetic compatibility unit, rectification filtering unit, PFC converter unit；Primary converter list
Member, secondary converter unit and output adjust unit；The output adjusts unit and is electrically connected with output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810020024.1A CN110022628A (en) | 2018-01-09 | 2018-01-09 | Linearity light adjusting intelligent digital power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810020024.1A CN110022628A (en) | 2018-01-09 | 2018-01-09 | Linearity light adjusting intelligent digital power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110022628A true CN110022628A (en) | 2019-07-16 |
Family
ID=67187816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810020024.1A Pending CN110022628A (en) | 2018-01-09 | 2018-01-09 | Linearity light adjusting intelligent digital power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110022628A (en) |
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2018
- 2018-01-09 CN CN201810020024.1A patent/CN110022628A/en active Pending
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