CN205213122U - But LED lamp area luminance regulation control circuit - Google Patents
But LED lamp area luminance regulation control circuit Download PDFInfo
- Publication number
- CN205213122U CN205213122U CN201521009139.9U CN201521009139U CN205213122U CN 205213122 U CN205213122 U CN 205213122U CN 201521009139 U CN201521009139 U CN 201521009139U CN 205213122 U CN205213122 U CN 205213122U
- Authority
- CN
- China
- Prior art keywords
- circuit
- led
- power supply
- control circuit
- adjustable 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.)
- Expired - Fee Related
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- 239000004065 semiconductor Substances 0.000 claims description 3
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Classifications
-
- 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)
- Led Devices (AREA)
Abstract
The utility model discloses a but LED lamp area luminance regulation control circuit, constitute including DCDC converting circuit, processing circuit, microprocessor supply circuit, the luminous circuit of LED, microprocessor circuit and switch circuit. When corresponding adjustting of the lighteness information was received through the signal reception circuit to the microprocessor circuit, the microprocessor circuit made the electric current average value of the luminous circuit of LED of flowing through change through periodically adjusting switching on and the turn -off time of among the switch circuit corresponding switch for the luminous circuit of LED sends other luminosity of required luminance level, thereby reaches the adjustable purpose of LED luminance. The utility model discloses a but LED lamp area luminance regulation control circuit simple structure, convenient operation. The utility model discloses an advantage has the value of using widely that but is used for the luminance regulation control circuit in LED lamp area, has satisfied the demand to LED lamp area, and its possess small, with low costs, the electric current is invariable relatively .
Description
Technical field
The utility model relates to the LED illumination control circuit in Smart Home field, particularly relates to the adjustable control circuit of a kind of LED brightness.
Background technology
LED, as a kind of new type light source, is applied in lighting field and has extra long life, energy-efficient, safe and reliable, the features such as environmental protection.
What current LED supply power mode adopted mostly is all by civil power, and then converts interchange to direct current by rectifier bridge.Due to the difference of lamp onboard led quantity, need to make voltage control on each LED within the specific limits, otherwise LED luminosity will be caused to differ, sometimes also there will be flicker.Conventional mode utilizes the special brightness of LED light modulation IC to LED to regulate, but, this special light modulation IC complex structure and cost is higher, mostly special light modulation IC is to design for AC-input voltage simultaneously, the light modulation IC of direct voltage input is little, which adds the cost of LED drive circuit.
Utility model content
The purpose of this utility model is just to provide a kind of DC-voltage supply that adopts for the adjustable control circuit of LED brightness to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The adjustable control circuit of a kind of LED brightness, the switching circuit comprising DC/DC change-over circuit, signal processing circuit, microprocessor power supply circuit, LED illuminating circuit, microcontroller circuit and be connected between microcontroller circuit and LED illuminating circuit, described DC/DC change-over circuit is that microprocessor power supply circuit and LED illuminating circuit are powered, and microprocessor power supply circuit is connected with microcontroller circuit.
Further, described DC/DC change-over circuit is Switching Power Supply change-over circuit, and this DC/DC change-over circuit is BUCK topology, BOOST is topological or BUCK-BOOST is topological.
Further, the burning voltage after described DC/DC change-over circuit is changed is 12V or 24V.
Further, described microprocessor power supply circuit is LDO power supply chip or BUCK topology, high-tension direct current is converted to low voltage and direct current by described microprocessor power supply circuit, and the direct-current working volts exported through microprocessor power supply circuit are 5V or 3.3V.
Further, described microcontroller circuit is single-chip microcomputer or digital integrated circuit controller, and described microcontroller circuit, by receiving from the information in signal processing circuit, converts the PWM drive singal needed for switching circuit to.
Further, described signal processing circuit is switching signal processing circuit, rs 232 serial interface signal treatment circuit, RF radio frequency signal processing circuit or Bluetooth signal treatment circuit.
Further, described switching circuit can be triode switch circuit or metal-oxide-semiconductor switching circuit, and described switching circuit adjusts the turn-on and turn-off time of switch by the PWM drive singal that microcontroller circuit provides.
Further, described LED illuminating circuit is 12V light bar or 24V light bar, and the inner connection in series-parallel form by LED of described LED illuminating circuit reaches different voltage and power grade.
The beneficial effects of the utility model are:
The adjustable control circuit structure of a kind of LED brightness of the present utility model is simple, easy to operate.The utility model is for the adjustable control circuit of LED brightness, meets the demand to LED, and it possesses, and volume is little, cost is low, the advantage of electric current relative constancy, has popularizing value.
Accompanying drawing explanation
Fig. 1 is the adjustable control circuit structural representation of a kind of LED brightness in embodiment;
Fig. 2 is DC/DC change-over circuit schematic diagram in the adjustable control circuit of a kind of LED brightness in embodiment;
Fig. 3 is microprocessor power supply circuit theory diagrams in the adjustable control circuit of a kind of LED brightness in embodiment;
Fig. 4 is signal processing circuit schematic diagram in the adjustable control circuit of a kind of LED brightness in embodiment;
Fig. 5 is microcontroller circuit schematic diagram in the adjustable control circuit of a kind of LED brightness in embodiment;
Fig. 6 is a kind of LED brightness adjustable control circuit breaker in middle circuit theory diagrams in embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the adjustable control circuit of LED brightness of the present utility model, the switching circuit 6 comprising DC/DC change-over circuit 1, signal processing circuit 2, microprocessor power supply circuit 3, LED illuminating circuit 4, microcontroller circuit 5 and be connected between microcontroller circuit 5 and LED illuminating circuit 4, DC/DC change-over circuit 1 is powered for microprocessor power supply circuit 3 and LED illuminating circuit 4, and microprocessor power supply circuit 3 is connected with microcontroller circuit 5.
As shown in Figure 2, wherein, described DC/DC change-over circuit 1 is Switching Power Supply change-over circuit, specifically, this DC/DC change-over circuit can be that BUCK is topological or BOOST is topological or BUCK-BOOST is topological, the direct voltage of instability is converted to the galvanic current pressure of LED power supply station needs by described DC/DC change-over circuit by PWM technology, the burning voltage usually after DC/DC changes is 12V or 24V.
As shown in Figure 3, wherein, described microprocessor power supply circuit 3 can be LDO power supply chip or BUCK topology, high-tension direct current is converted to the low voltage and direct current required for microprocessor work by described microprocessor power supply circuit 3, and the direct-current working volts that usual microprocessor power supply circuit 3 exports are 5V or 3.3V.
As shown in Figures 4 and 5, wherein, described microcontroller circuit 5 can be single-chip microcomputer or digital integrated circuit controller, and described microcontroller circuit 5, by receiving from the information in signal processing circuit 2, converts the PWM drive singal needed for switching circuit to.Wherein, described signal processing circuit 2 can be switching signal processing circuit or rs 232 serial interface signal treatment circuit or RF radio frequency signal processing circuit or Bluetooth signal treatment circuit, the control signal received is converted to the discernible information signal of microcontroller circuit 5 and receives for microcontroller circuit 5 by described signal processing circuit 2, and then microcontroller circuit 5 converts PWM drive singal needed for switching circuit 6 to by the algorithm of inside.
As shown in Figure 6, wherein, described switching circuit 6 can be triode switch circuit or metal-oxide-semiconductor switching circuit, described switching circuit 6 adjusts the turn-on and turn-off time of switch by the PWM drive singal that microcontroller circuit 5 provides, thus controls the size flowing through electric current in switch in the unit interval.The size of current flow through in unit interval can represent with average current.The luminosity of LED is relevant to the average current flow through in LED, and LED average current is larger, and the brightness of LED is brighter, and on the contrary, LED average current is less, and the brightness of LED is darker.By controlling the size flowing through average current in switching circuit, thus the size controlling to flow through LED average current reaches the adjustable object of LED brightness.
Wherein, described LED illuminating circuit 4 can be 12V light bar or 24V light bar.The inner connection in series-parallel form by LED of described LED illuminating circuit reaches different voltage and power grade.
Claims (8)
1. the adjustable control circuit of LED brightness, the switching circuit (6) comprising DC/DC change-over circuit (1), signal processing circuit (2), microprocessor power supply circuit (3), LED illuminating circuit (4), microcontroller circuit (5) and be connected between microcontroller circuit (5) and LED illuminating circuit (4), it is characterized in that: described DC/DC change-over circuit (1) is microprocessor power supply circuit (3) and LED illuminating circuit (4) power supply, and microprocessor power supply circuit (3) is connected with microcontroller circuit (5).
2. the adjustable control circuit of LED brightness as claimed in claim 1, is characterized in that: described DC/DC change-over circuit (1) is Switching Power Supply change-over circuit, and this DC/DC change-over circuit (1) is BUCK topology, BOOST is topological or BUCK-BOOST is topological.
3. the adjustable control circuit of LED brightness as claimed in claim 2, is characterized in that: the burning voltage after described DC/DC change-over circuit is changed is 12V or 24V.
4. the adjustable control circuit of LED brightness as claimed in claim 1, it is characterized in that: described microprocessor power supply circuit (3) is LDO power supply chip or BUCK topology, high-tension direct current is converted to low voltage and direct current by described microprocessor power supply circuit (3), and the direct-current working volts exported through microprocessor power supply circuit (3) are 5V or 3.3V.
5. the adjustable control circuit of LED brightness as claimed in claim 1, it is characterized in that: described microcontroller circuit (5) is single-chip microcomputer or digital integrated circuit controller, described microcontroller circuit (5), by receiving from the information in signal processing circuit (2), converts the PWM drive singal needed for switching circuit (6) to.
6. the adjustable control circuit of LED brightness as claimed in claim 1, is characterized in that: described signal processing circuit (2) is switching signal processing circuit, rs 232 serial interface signal treatment circuit, RF radio frequency signal processing circuit or Bluetooth signal treatment circuit.
7. the adjustable control circuit of LED brightness as claimed in claim 5, it is characterized in that: described switching circuit (6) can be triode switch circuit or metal-oxide-semiconductor switching circuit, described switching circuit (6) adjusts the turn-on and turn-off time of switch by the PWM drive singal that microcontroller circuit (5) provides.
8. the adjustable control circuit of LED brightness as claimed in claim 1, it is characterized in that: described LED illuminating circuit (4) is 12V light bar or 24V light bar, the inner connection in series-parallel form by LED of described LED illuminating circuit (4) reaches different voltage and power grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009139.9U CN205213122U (en) | 2015-12-08 | 2015-12-08 | But LED lamp area luminance regulation control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009139.9U CN205213122U (en) | 2015-12-08 | 2015-12-08 | But LED lamp area luminance regulation control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205213122U true CN205213122U (en) | 2016-05-04 |
Family
ID=55850806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521009139.9U Expired - Fee Related CN205213122U (en) | 2015-12-08 | 2015-12-08 | But LED lamp area luminance regulation control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205213122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916259A (en) * | 2016-06-21 | 2016-08-31 | 新和（绍兴）绿色照明有限公司 | Intelligent remotely-controlled LED lamp |
| CN105935190A (en) * | 2016-06-03 | 2016-09-14 | 海宁滴滴箱包智能科技有限公司 | Self-energy bag with double lamp belts |
-
2015
- 2015-12-08 CN CN201521009139.9U patent/CN205213122U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935190A (en) * | 2016-06-03 | 2016-09-14 | 海宁滴滴箱包智能科技有限公司 | Self-energy bag with double lamp belts |
| CN105916259A (en) * | 2016-06-21 | 2016-08-31 | 新和（绍兴）绿色照明有限公司 | Intelligent remotely-controlled LED lamp |
| CN105916259B (en) * | 2016-06-21 | 2017-07-21 | 新和（绍兴）绿色照明有限公司 | A kind of intelligent distant control LED |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160504 |