CN110113846A - A kind of LED light adjusting system of adaptive different capacity section - Google Patents
A kind of LED light adjusting system of adaptive different capacity section Download PDFInfo
- Publication number
- CN110113846A CN110113846A CN201910521258.9A CN201910521258A CN110113846A CN 110113846 A CN110113846 A CN 110113846A CN 201910521258 A CN201910521258 A CN 201910521258A CN 110113846 A CN110113846 A CN 110113846A
- Authority
- CN
- China
- Prior art keywords
- voltage
- value
- vout
- copped wave
- mcu
- 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
-
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention provides a kind of LED light adjusting system of adaptive different capacity section, it include: LED load, MOS, voltage output detection circuit are connected in the LED load, PWM module is cut after being connected on MOS, sample circuit, copped wave CC/CV control chip are connected in the voltage output detection circuit, the sample circuit is connected to copped wave CC/CV by MCU chip and controls chip, copped wave CC/CV control chip is connected to alternating current by current rectifying and wave filtering circuit, the present invention can adaptively in a certain range variable output voltage application；Reduce product category and stock inventory, improves production and processing, improve production efficiency and first-pass yield.
Description
Technical field
The present invention relates to LED intelligent dimming technical field, the LED of specially a kind of adaptive different capacity section dims system
System.
Background technique
Demand of the people to LED intelligent dimming product is more and more at present, and under the compression of cost, more manufacturers can be adopted
Metal-oxide-semiconductor is concatenated using two-way different colours lamp bead in output end with the chip of constant current constant voltage all the way, cuts and lightens after being carried out by PWM
Degree and colour temperature, we are accustomed to referred to as " half-power light modulation ", and (work is in constant current mode, PWM tune when single channel all light and two-way all light
Light time works in constant voltage mode), but since main control chip is constant current constant voltage chip, a kind of voltage can only be defaulted by resulting in chip
Output cannot be compatible with the lamp bead load of more low-voltage (string number) simultaneously.
Such as being required of dimming power source is 52-72V/150mA, the constant pressure and constant current that we design power supply can only be 72V/
150mA, if that when the lamp bead voltage that Power supply belt carries is 52V, it can be with normal operating when normally lighting single channel and all light
(constant current state, output voltage can be according to lamp bead load voltages come adjust automatically) only carries out when PWM light modulation being to enter constant pressure shape
State (Vout can default constant in 72V), so much remaining 20V voltage can be added to metal-oxide-semiconductor both ends by force, and in advance in 72V band
The PWM set when load is dimmed causes output electric current to become larger than regular meeting because of the increase of this 20V voltage, and even more than we set
150mA, will lead to MOS and lamp bead in this way can all damage because of super rated power, it is clear that 52-72V cannot be compatible with, only
Can specific some voltage realize；It thus needs to customize plurality of specifications and version to solve this problem.
Summary of the invention
Technical problem solved by the invention is to provide a kind of LED light adjusting system of adaptive different capacity section, with solution
Certainly the problems mentioned above in the background art.
Technical problem solved by the invention is realized using following technical scheme: a kind of adaptive different capacity section
LED light adjusting system, comprising: LED load is connected with MOS, voltage output detection circuit in the LED load, is connected on MOS
After cut PWM module, sample circuit, copped wave CC/CV control chip are connected in the voltage output detection circuit, the sampling is electric
Road is connected to copped wave CC/CV by MCU chip and controls chip, and the copped wave CC/CV control chip is connected by current rectifying and wave filtering circuit
It is connected to alternating current, after powering on, it is assumed that Vout is 72V, then the voltage etc. at this winding of L1A both ends when main control chip removes magnetic loop
In 72V, then L1B just senses that the voltage of 24V, this voltage of 24V are divided by R5 and R6, MCU can sample this
238mV voltage value；Assuming that Vout is 60V, then sampling 198mV voltage value, it is assumed that Vout is 52V, then sampling 171mV
Voltage value；The corresponding AD value of multiple Vout is set；Then detect which AD value just passes through the height electricity of I/O1, I/O2 and I/O3
It is flat to take to select conducting Q1, Q2 or Q3；Different FB resistance is obtained in this way, to realize this voltage of adjust automatically Vout.
The MCU remembers the VD value sampled by built-in EEPROM, to select suitable I/O mouthfuls of control desired
Floating voltage will save always this state when the VDD of MCU is not reset, and guarantee unloaded electricity in the operation of this period
Pressure is the value that we set, and can carry out PWM light modulation according to obtained floating voltage in this period.
Compared with prior art, the beneficial effects of the present invention are: the present invention can be changed output in adaptive a certain range
The application of voltage；Reduce product category and stock inventory, improves production and processing, improve production efficiency and first-pass yield.
Detailed description of the invention
Fig. 1 is systematic schematic diagram of the invention.
Fig. 2 is circuit diagram schematic diagram of the invention.
Specific embodiment
In order to make implement technical means of the invention, creation characteristic, reach purpose and effect is easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained, in the description of the present invention, it should be noted that unless otherwise specific regulation
And restriction, term " installation ", " company ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachable
Connection, or be integrally connected and can be mechanical connection, it is also possible to be electrically connected；It can be directly connected, centre can also be passed through
Medium is indirectly connected, can connection inside two elements.
As shown in Figure 1 and Figure 2, a kind of LED light adjusting system of adaptive different capacity section, comprising: LED load, the LED
It is connected with MOS, voltage output detection circuit in load, PWM module, the voltage output detection circuit are cut after being connected on MOS
On be connected with sample circuit, copped wave CC/CV control chip, the sample circuit by MCU chip be connected to copped wave CC/CV control
Chip, the copped wave CC/CV control chip is connected to alternating current by current rectifying and wave filtering circuit, after powering on, it is assumed that and Vout is 72V, that
The voltage at this winding of L1A both ends when main control chip removes magnetic loop is equal to 72V, then L1B just senses the voltage of 24V,
This voltage of 24V is divided by R5 and R6, and U2 samples this 238mV voltage value；Assuming that Vout is 60V, then sampling
198mV voltage value, it is assumed that Vout is 52V, then sampling 171mV voltage value；The corresponding AD value of multiple Vout is set；Then it examines
Measure which AD value just pass through I/O1, I/O2 and I/O3 low and high level take select conducting Q1, Q2 or Q3；It obtains so not
Same FB resistance, to realize this voltage of adjust automatically Vout.
The MCU remembers the VD value sampled by built-in EEPROM, to select suitable I/O mouthfuls of control desired
Floating voltage will save always this state when the VDD of MCU is not reset, and guarantee unloaded electricity in the operation of this period
Pressure is the value that we set, and can carry out PWM light modulation according to obtained floating voltage in this period.
The operation principle of the present invention is that:
1) after powering on, it is assumed that Vout is 72V, then the voltage at this winding of L1A both ends when main control chip removes magnetic loop
Equal to 72V, then L1B can sense the voltage (because L1A is 108 circles, L1B is 36 circles) of 24V, this voltage of 24V is logical
R5 (200K) and R6 (2K) partial pressure is crossed, U2 can sample this 238mV voltage value (AD value)；Assuming that Vout is 60V, then adopting
Sample is to 198mV voltage value, it is assumed that Vout is 52V, then sampling 171mV voltage value；So analogize, Vout is lower, samples
This voltage value it is lower, the corresponding AD value of multiple Vout thus can be set；Then detect which AD value just passes through
The low and high level of I/O1, I/O2 and I/O3 are taken to select conducting Q1, Q2 or Q3；It can be obtained by different FB resistance in this way,
So as to realize this voltage of adjust automatically Vout.
2) PWM module cooperation is cut after needing: when powering on, don't fail to guarantee single channel all light (work at this time to be set as
Make in constant current mode and lamp bead ceiling voltage), the VD value sampled is remembered by the EEPROM built in MCU, to select to close
Suitable I/O mouth controls desired floating voltage, to save this state always when the VDD of MCU is not reset, it is ensured that this
Floating voltage is the value that we set in the operation of a period, can be come according to obtained floating voltage in this period
Carry out PWM light modulation；Because this kind of product generally also may require that also by switch on wall (repeatedly switch) realize switching colour temperature and
Mini light night, then switch when MCU VDD hold time just setting 1.5S or so just it is much of that,；After so powered-down 1.5S, only
VDD is wanted to be cleared, then can repeat the above process, resampling AD value starts to automatically control.
The present invention is sampled by MCU, is powered on single channel all light to be set as the first time and (is worked at this time in constant current mode, and be
Lamp bead ceiling voltage), MCU samples the AD value of output voltage and is saved in EEPROM at this time, then the control foot control system of MCU "
VOUT is adjusted to suitable floating voltage by the FB foot of copped wave CC/CV ", thus can adaptive Vout, this is to can be obtained by
Suitable output voltage dims to carry out PWM, as long as the VDD of MCU is not cleared, this control logic is always existed；Such as
VDD is cleared with regard to resampling after resolute electricity, repeats this process.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.Claimed range of the invention by appended claims and
Its equivalent thereof.
Claims (2)
1. a kind of LED light adjusting system of adaptive different capacity section, comprising: LED load, it is characterised in that: in the LED load
It is connected with MOS, voltage output detection circuit, PWM module is cut after being connected on MOS, is connected in the voltage output detection circuit
There are sample circuit, copped wave CC/CV control chip, the sample circuit is connected to copped wave CC/CV by MCU chip and controls chip,
The copped wave CC/CV control chip is connected to alternating current by current rectifying and wave filtering circuit, after powering on, it is assumed that Vout is 72V, then L1A
The voltage at this winding both ends when main control chip removes magnetic loop is equal to 72V, then L1B just senses the voltage of 24V, 24V this
A voltage is divided by R5 and R6, and U2 samples this 238mV voltage value；Assuming that Vout is 60V, then sampling 198mV electricity
Pressure value, it is assumed that Vout is 52V, then sampling 171mV voltage value；The corresponding AD value of multiple Vout is set；Then which is detected
The low and high level that a AD value just passes through I/O1, I/O2 and I/O3 is taken to select conducting Q1, Q2 or Q3；Different FB is obtained in this way
Resistance, to realize this voltage of adjust automatically Vout.
2. a kind of LED light adjusting system of adaptive different capacity section according to claim 1, it is characterised in that: the MCU
The VD value sampled is remembered by built-in EEPROM, so that the desired floating voltage of suitable I/O mouthfuls of control is selected, in MCU
VDD to save this state always when not resetting, guarantee that floating voltage is that we set in the operation of this period
Value can carry out PWM light modulation according to obtained floating voltage in this period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521258.9A CN110113846B (en) | 2019-06-17 | 2019-06-17 | LED dimming system of self-adaptation different power sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521258.9A CN110113846B (en) | 2019-06-17 | 2019-06-17 | LED dimming system of self-adaptation different power sections |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110113846A true CN110113846A (en) | 2019-08-09 |
| CN110113846B CN110113846B (en) | 2024-05-03 |
Family
ID=67495200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910521258.9A Active CN110113846B (en) | 2019-06-17 | 2019-06-17 | LED dimming system of self-adaptation different power sections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110113846B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112637991A (en) * | 2019-09-20 | 2021-04-09 | 台达电子工业股份有限公司 | Power supply applied to light emitting diode and operation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347341A (en) * | 2013-07-12 | 2013-10-09 | 惠州伟志电子有限公司 | Novel high-power fishing lamp wireless control system |
| CN103442501A (en) * | 2013-09-12 | 2013-12-11 | 江华 | Forced constant flow source dimming LED (Light Emitting Diode) lamp |
| CN105188232A (en) * | 2015-10-23 | 2015-12-23 | 深圳市奇脉电子技术有限公司 | LED (light-emitting diode) constant-current drive circuit, constant-current dimming circuit and control method of LED (light-emitting diode) constant-current dimming circuit |
| US9609713B1 (en) * | 2015-12-23 | 2017-03-28 | Zhuhai Shengchang Electronics Co., Ltd. | Kind of pulse width dimming control circuit for LED phase cut dimming power supply |
| CN210274617U (en) * | 2019-06-17 | 2020-04-07 | 无锡格兰德微电子科技有限公司 | LED dimming system adaptive to different power sections |
-
2019
- 2019-06-17 CN CN201910521258.9A patent/CN110113846B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347341A (en) * | 2013-07-12 | 2013-10-09 | 惠州伟志电子有限公司 | Novel high-power fishing lamp wireless control system |
| CN103442501A (en) * | 2013-09-12 | 2013-12-11 | 江华 | Forced constant flow source dimming LED (Light Emitting Diode) lamp |
| CN105188232A (en) * | 2015-10-23 | 2015-12-23 | 深圳市奇脉电子技术有限公司 | LED (light-emitting diode) constant-current drive circuit, constant-current dimming circuit and control method of LED (light-emitting diode) constant-current dimming circuit |
| US9609713B1 (en) * | 2015-12-23 | 2017-03-28 | Zhuhai Shengchang Electronics Co., Ltd. | Kind of pulse width dimming control circuit for LED phase cut dimming power supply |
| CN210274617U (en) * | 2019-06-17 | 2020-04-07 | 无锡格兰德微电子科技有限公司 | LED dimming system adaptive to different power sections |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112637991A (en) * | 2019-09-20 | 2021-04-09 | 台达电子工业股份有限公司 | Power supply applied to light emitting diode and operation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110113846B (en) | 2024-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113853051B (en) | Electrical control panels and systems for controlling multiple electrical loads | |
| ES2734099T3 (en) | System and impulse device of a plurality of high power units | |
| CN205454156U (en) | LED power and lamps and lanterns of wireless control's low ripple output of multichannel | |
| US10172199B1 (en) | Light-actuated wide voltage range LED lamp driver circuit | |
| CN102595706A (en) | Light adjusting system for LED (Light Emitting Diode) lighting fixture | |
| CN102159001A (en) | Lamp tube circuit of luminous component | |
| KR20130030714A (en) | Power saving led lighting | |
| CN109587894A (en) | A kind of wireless control linear drive circuit of LED filament lamp | |
| CN110113846A (en) | A kind of LED light adjusting system of adaptive different capacity section | |
| CN108901098B (en) | Linear LED drive circuit with replaceable working mode | |
| CN212163763U (en) | Silicon controlled rectifier dimming control circuit | |
| CN109429405A (en) | A kind of intelligent light controller | |
| CN106163013A (en) | LED drive circuit based on the colour temperature modulation of 2.4G | |
| US12041699B2 (en) | Lighting device | |
| EP3300458B1 (en) | Led device | |
| CN217936004U (en) | LED drive circuit, LED straight tube lamp and LED lamps and lanterns system compatible constant current and adjusting luminance | |
| CN213586365U (en) | Intelligent energy-saving power supply controller | |
| US10805996B1 (en) | Dial segmented dimming circuit | |
| CN210274617U (en) | LED dimming system adaptive to different power sections | |
| CN210469809U (en) | Driver | |
| CN201937892U (en) | Control device for light-emitting diode lamps | |
| CN102665355A (en) | LED (Light Emitting Diode) dimming light source installed on wall space | |
| CN107659125A (en) | Power supply, integrated form power supply and illuminator applied to multichannel loading | |
| CN110740543A (en) | Intelligent lamp control circuit | |
| CN201438773U (en) | LED dimming device |
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 | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: Room 1501, 15th Floor, Building A3, No. 777 Jianzhu West Road, Binhu District, Wuxi City, Jiangsu Province, 214000 Applicant after: Wuxi Grand Microelectronics Technology Co.,Ltd. Address before: 214000 Building A 808, 530 Building, Sensor Network University Science Park, Taihu Science Park, 18 Qingyuan Road, Xinwu District, Wuxi City, Jiangsu Province Applicant before: Wuxi Grand Microelectronics Technology Co.,Ltd. Country or region before: China |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |