CN107124800A - A kind of PLC technology Switching Power Supply - Google Patents
A kind of PLC technology Switching Power Supply Download PDFInfo
- Publication number
- CN107124800A CN107124800A CN201710509225.3A CN201710509225A CN107124800A CN 107124800 A CN107124800 A CN 107124800A CN 201710509225 A CN201710509225 A CN 201710509225A CN 107124800 A CN107124800 A CN 107124800A
- Authority
- CN
- China
- Prior art keywords
- digital regulation
- regulation resistance
- operational amplifier
- power supply
- switching power
- 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
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- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 230000033228 biological regulation Effects 0.000 claims abstract description 35
- 238000004088 simulation Methods 0.000 claims abstract description 12
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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]
- H05B45/30—Driver circuits
- H05B45/37—Converter 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]
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- Dc-Dc Converters (AREA)
Abstract
The present invention proposes a kind of PLC technology Switching Power Supply, including singlechip chip, it is connected with to connect on the first digital regulation resistance and the second digital regulation resistance, first digital regulation resistance on the singlechip chip and has reference voltage, and is connected with two the first operational amplifiers；The second digital regulation resistance input is connected with simulation dim signal, output end is connected with the second operational amplifier, first amplifier and the second amplifier out pass through or the connection of logical AND photo-coupler, and the optocoupler output is connected with the singlechip chip；The inverting input of first operational amplifier and the second operational amplifier is connected to laod network, and the design is online as program storage and with digital regulation resistance using only single-chip microcomputer, requires low to MCU；Comparator is directly provided using the high precision partial pressure of external reference voltage and digital regulation resistance；The programming accuracy and resolution ratio of whole system are unrelated with the hardware configuration of single-chip microcomputer, and simple and reliable cost is low.
Description
Technical field
Field, more particularly to PLC technology Switching Power Supply are driven the present invention relates to light emitting diode.
Background technology
Existing Switching Power Supply is according to the difference of loadtype, Basic Design：1, determine voltage output；2, determine electric current defeated
Go out；3, both exist simultaneously；But the setting of substantially output voltage or output current is completely dependent on hardware circuit to be joined in itself
The setting of voltage or the setting of sampling resistor value is examined to realize；It is to vary for the output state required for client
, such as now popular light emitting diode application, each producer/client can be needed LED according to self-designed
Connection in series-parallel.Also therefore it is required that the output current ＆ voltage specifications of driving power supply are also very fine and closely woven；In order to meet the specification of client
It is required that, traditional mode is to be directed to each specification all one power supply models of design construction, and client is fixed according to the required buying that places an order
System；This buying undoubtedly to both sides of supply and demand, stock's ＆ production managements are very big burdens, and manage unfavorable for Quality Cost.
The content of the invention
In order to solve the above technical problems, the present invention proposes a kind of PLC technology Switching Power Supply, including singlechip chip,
It is connected with the first digital regulation resistance and the second digital regulation resistance, first digital regulation resistance and connects on the singlechip chip
There is reference voltage, and be connected with two the first operational amplifiers；The second digital regulation resistance input is connected with simulation light modulation
Signal, output end is connected with the second operational amplifier, and first amplifier and the second amplifier out pass through or logical AND
Photo-coupler is connected, and the optocoupler output is connected with the singlechip chip；First operational amplifier and second
The inverting input of operational amplifier is connected to laod network.
It is preferred that, the voltage after partial pressure is respectively connecting to first by first digital regulation resistance and the second digital regulation resistance
The in-phase input end of operational amplifier and the second operational amplifier.
It is preferred that, the laod network is LED load.
It is preferred that, signal attenuation module, end are connected between the simulation dim signal and second digital regulation resistance
Mouth protection circuit and impedance matching circuit.
It is preferred that, it is connected with pwm circuit between the photo-coupler and the singlechip chip.
PLC technology Switching Power Supply proposed by the present invention has following beneficial effect：This power supply can voluntarily be adjusted according to load capacity
Whole input voltage, is applicable the power supply of various different models, and traditional PLC technology is directly to export one in itself using single-chip microcomputer
Individual reference voltage is to comparator.The generation of reference voltage can be that direct DA outputs either PWM waveform is filtered by RC, originally set
Meter is online as program storage and with digital regulation resistance using only single-chip microcomputer, requires low to MCU；Using external reference voltage with
The high precision partial pressure of digital regulation resistance directly provides comparator；The programming accuracy and resolution ratio of whole system and single-chip microcomputer it is hard
Part configuration is unrelated, and system only needs to single-point calibration and ensures that the interval accuracy of whole programming；Simple and reliable cost is low.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described.
Fig. 1 is circuit connection diagram of the invention；
Wherein, 1- singlechip chips, the digital regulation resistances of 2- first, the digital regulation resistances of 3- second, the operational amplifiers of 4- first,
The operational amplifiers of 5- second, 6- photo-couplers, 7-LED loads, 8- simulation dim signals, 9- single-chip processor i/os mouthful, 10- is with reference to electricity
Pressure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.
As shown in figure 1, the present invention proposes a kind of PLC technology Switching Power Supply, including singlechip chip 1, the monolithic
It is connected with to connect on the first digital regulation resistance 2 and the second digital regulation resistance 3, first digital regulation resistance 2 on movement piece 1 and has ginseng
Voltage 10 is examined, the first digital regulation resistance 2 and the second digital regulation resistance 3 are two-channel digital potentiometer；
And it is connected with two the first operational amplifiers 4；The input of second digital regulation resistance 3 is connected with simulation light modulation letter
Numbers 8, output end is connected with the second operational amplifier 5, and first amplifier and the second amplifier out pass through or logical AND
Photo-coupler 6 is connected, and the output end of photo-coupler 6 is connected with the singlechip chip 1；The He of first operational amplifier 4
The inverting input of second operational amplifier 5 is connected to laod network.Singlechip chip 1 is completed by I/O ports and PC
Communication is controlled with UI, and singlechip chip 1 has the purposes of the customized data storages of program storage ＆ concurrently.
The control mode of said system is：Singlechip chip 1 is by controlling twin-channel first digital regulation resistance 21, bilateral
The tap position of each passage of road digital regulation resistance 2, will come from external reference voltage 10VrefCarry out partial pressure；
The reference voltage of the electric current ＆ simulation servo antrols of dim signal 8, as voltage is determined, is determined by each voltage after partial pressure
10 are connected to the in-phase input end of respective operational amplifier；
Determine voltage, determine the inverting input of the corresponding operational amplifier of the electric current ＆ simulation servo antrols of dim signal 8 with it is each
It is connected from monitoring network/Signal Matching network；
OP1,OP2,OP3Respectively determine voltage, determine the corresponding operational amplifier of the electric current ＆ simulation servo antrols of dim signal 8；
OP1,OP2,OP3Output end do low-voltage "or" logic, i.e. the voltage of which output it is low that effectively, afterwards and light
Coupler 6U1 is connected；
Pwm circuit is connected between the photo-coupler 6 and the singlechip chip 1, by pwm circuit output level control
Feedback signal is passed to PWM control single chip computers chip 1 by singlechip chip 1 processed, photo-coupler 6, to complete closing for whole system
Ring is controlled；Photo-coupler 6 also has primary side and secondary side concurrently, thermally the buffer action between cold ground and different earthed systems.
It is preferred that, the voltage after partial pressure is respectively connecting to by the digital regulation resistance 3 of the first digital regulation resistance 2 and second
The in-phase input end of one operational amplifier 4 and the second operational amplifier 5.
It is preferred that, the laod network is LED load 7.
In order to be adapted to the simulation dim signal 8 of input, the simulation dim signal 8 and second digital regulation resistance 3 it
Between be connected with signal attenuation module, port-guard circuit and impedance matching circuit, be capable of discharge port signal interference etc. ask
Topic.
A variety of modifications to embodiment will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty
Consistent most wide scope.
Claims (5)
1. a kind of PLC technology Switching Power Supply, it is characterised in that including singlechip chip, is connected with the singlechip chip
Being connected on first digital regulation resistance and the second digital regulation resistance, first digital regulation resistance has reference voltage, and is connected with two
Individual first operational amplifier；The second digital regulation resistance input is connected with simulation dim signal, and output end is connected with second
Operational amplifier, first amplifier and the second amplifier out pass through or the connection of logical AND photo-coupler, the optocoupler
Clutch output end is connected with the singlechip chip；The inverting input of first operational amplifier and the second operational amplifier
It is connected to laod network.
2. PLC technology Switching Power Supply according to claim 1, it is characterised in that first digital regulation resistance and
Voltage after partial pressure is respectively connecting to the homophase input of the first operational amplifier and the second operational amplifier by two digital regulation resistances
End.
3. PLC technology Switching Power Supply according to claim 1, it is characterised in that the laod network is LED load.
4. PLC technology Switching Power Supply according to claim 1, it is characterised in that the simulation dim signal with it is described
Signal attenuation module, port-guard circuit and impedance matching circuit are connected between second digital regulation resistance.
5. PLC technology Switching Power Supply according to claim 1, it is characterised in that the photo-coupler and the monolithic
Pwm circuit is connected between movement piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509225.3A CN107124800B (en) | 2017-06-28 | 2017-06-28 | A kind of PLC technology Switching Power Supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509225.3A CN107124800B (en) | 2017-06-28 | 2017-06-28 | A kind of PLC technology Switching Power Supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107124800A true CN107124800A (en) | 2017-09-01 |
| CN107124800B CN107124800B (en) | 2019-04-16 |
Family
ID=59720104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710509225.3A Expired - Fee Related CN107124800B (en) | 2017-06-28 | 2017-06-28 | A kind of PLC technology Switching Power Supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107124800B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777898A (en) * | 2018-06-05 | 2018-11-09 | 深圳市廿年科技有限公司 | A kind of knob code switch and intelligent dimming method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030156433A1 (en) * | 2000-08-18 | 2003-08-21 | Xiaowu Gong | Circuit configuration for producing a switching signal for a current-controlled switch-mode power supply |
| US20060192544A1 (en) * | 2005-02-25 | 2006-08-31 | Guang-Jian Huang | Adjustable regulated power device |
| CN201491325U (en) * | 2009-06-16 | 2010-05-26 | 克拉玛依地威诺节能有限责任公司 | LED lamp constant current light modulating device |
| CN202077222U (en) * | 2011-03-15 | 2011-12-14 | 克拉玛依地威诺节能有限责任公司 | Switch power supply with functions of communication, data acquisition and dimming control for light-emitting diode (LED) lamp |
| CN203838587U (en) * | 2014-02-26 | 2014-09-17 | 浙江海洋学院 | Numerical-control direct current source |
| CN104600661A (en) * | 2013-11-02 | 2015-05-06 | 成都市未来合力科技有限责任公司 | Self-resetting over-voltage and under-voltage protection circuit of radar power supply |
-
2017
- 2017-06-28 CN CN201710509225.3A patent/CN107124800B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030156433A1 (en) * | 2000-08-18 | 2003-08-21 | Xiaowu Gong | Circuit configuration for producing a switching signal for a current-controlled switch-mode power supply |
| US20060192544A1 (en) * | 2005-02-25 | 2006-08-31 | Guang-Jian Huang | Adjustable regulated power device |
| CN201491325U (en) * | 2009-06-16 | 2010-05-26 | 克拉玛依地威诺节能有限责任公司 | LED lamp constant current light modulating device |
| CN202077222U (en) * | 2011-03-15 | 2011-12-14 | 克拉玛依地威诺节能有限责任公司 | Switch power supply with functions of communication, data acquisition and dimming control for light-emitting diode (LED) lamp |
| CN104600661A (en) * | 2013-11-02 | 2015-05-06 | 成都市未来合力科技有限责任公司 | Self-resetting over-voltage and under-voltage protection circuit of radar power supply |
| CN203838587U (en) * | 2014-02-26 | 2014-09-17 | 浙江海洋学院 | Numerical-control direct current source |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777898A (en) * | 2018-06-05 | 2018-11-09 | 深圳市廿年科技有限公司 | A kind of knob code switch and intelligent dimming method |
| CN108777898B (en) * | 2018-06-05 | 2024-05-10 | 深圳市杜莎科技有限公司 | Knob coding switch and intelligent dimming method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107124800B (en) | 2019-04-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 |