CN206851095U - It is a kind of that there is the LED control circuit for dimming and mixing colours function - Google Patents
It is a kind of that there is the LED control circuit for dimming and mixing colours function Download PDFInfo
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- CN206851095U CN206851095U CN201720750624.4U CN201720750624U CN206851095U CN 206851095 U CN206851095 U CN 206851095U CN 201720750624 U CN201720750624 U CN 201720750624U CN 206851095 U CN206851095 U CN 206851095U
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- circuit
- control circuit
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- led module
- light modulation
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- 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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of LED control circuit for having and dimming and mixing colours function, pass through the rational design to circuit, so that the control to LED module can not only be by being controlled to the quick on-off number of switch, selectivity light modulation is needed according to working situation, directly light-emitting mode is carried out using the dimming interface of outside to LED to be controlled, reduce user's wiring, improve the ease of use of user, the structure of this circuit is simple simultaneously, cost is low with respect to controlled in wireless cost, stability is good, improves the usage experience of user.
Description
Technical field
LED control fields are the utility model is related to, it is more particularly to a kind of that there is the LED control electricity for dimming and mixing colours function
Road.
Background technology
In existing LED colour temperature and the control of brightness, controlled in wireless is generally all used, to reach convenient purpose, but
It is Wireless transmitting structure complexity, and repairs fairly cumbersome, when carrying out the control of large-scale light fixture, also easily mixes
Disorderly, reliability is relatively poor.And a kind of existing control mode, as disclosed in patent 201420851411.7, opened using control
Close the number of quick on-off, to LED light intensity and it is photochromic be controlled, but still remain infrared remote control control, as
Another control device, this control mode is very powerless for regulation and control on a large scale, because the indifference of Infrared Transmission, often
The luminance of other lamps can be controlled, influences overall illumination effect.
Utility model content
Problem to be solved in the utility model is how to provide a kind of LED control circuit, can either exempt Traditional control side
Complicated in method, troublesome control method, and can is enough realized to be precisely controlled to a wide range of LED.
In order to solve the above problems, the utility model provides a kind of LED control circuit with light modulation and toning function,
Including switching S1, rectification circuit, power switch circuit, pwm control circuit, MCU control circuit, negative circuit, external dimmer end
Mouth, the first LED module and the second LED module, described switch S1 are connected with live wire, and live wire connects with zero line and rectification circuit
Connect, described rectification circuit external capacitor C1, the electric capacity C1 other ends and shielding line grounding connection, rectification circuit output end and power
On-off circuit and pwm control circuit connection, are connected with each other between power switch circuit and pwm control circuit, Power Control electricity
Road is connected by isolating transformer G1 with MCU control circuit, and the output end of MCU control circuit is connected with the first LED module,
The output end of MCU control circuit is connected by negative circuit with the second LED module, and power switch circuit passes through isolating transformer
G2 is connected with the first LED module and the second LED module, and external dimmer port is connected with MCU control circuit.By being provided with
Two control modes, a kind of is the quick on-off by switch, and to select the luminous effect of LED, another kind is to pass through outside
Analog signal either data signal inputted LED directly controlled, in some scenes, be only provided with single one
Group LED, then can easily by quick on-off switch number, come to brightness or colour temperature be controlled, need pair
When more LED is controlled, then it can be controlled by brightness of the external dimmer mouth directly to LED and colour temperature,
The scene larger from two difference provides reliable, convenient regulative mode.
Also include em filtering circuit, em filtering circuit is connected with rectification circuit.Em filtering circuit can filter out control
The noise of signal processed, reducing the judgement on control signal influences.
Also include three circuit structure identical current rectifying and wave filtering circuit U4, U6 and U7, described current rectifying and wave filtering circuit U4 is set
Put between pwm control circuit and isolating transformer G1, described current rectifying and wave filtering circuit U7 is arranged on isolating transformer G1 and MCU
Between control circuit, the current rectifying and wave filtering circuit U6 described in described rectifier filter is arranged on isolating transformer G2 and the first LED
Between lamp module and the second LED module.Current rectifying and wave filtering circuit can be filtered shaping to the signal before and after transformation, so as under
The device work of one step.
Current rectifying and wave filtering circuit U6 is grounded.Noise remove can be reduced the influence to integrated circuit by ground connection.
Also include PFC correcting circuits, described PFC correcting circuits are connected with pwm control circuit.School is carried out to power factor (PF)
Just, the utilization rate of electric energy is improved.
Also include signal processing circuit, described signal processing circuit is arranged on external dimmer port and MCU control circuit
Between.The signal progress shaping acting as to outside input of signal processing circuit, noise reduction process, to improve at follow-up signal
The precision of reason.
First LED module and the second LED module include LED and N-channel MOS FET, LED and N-channel
MOSFET drain electrode connection, grid are connected with MCU control circuit, source ground.So do preferably to control to LED
System.
The quantity for the LED that first LED module and the second LED module are included is three, is cascaded structure.
So LED, which is set, can be more convenient to carry out break-make control to LED.
Also include dimming interface and signal processing circuit, described dimming interface is connected with signal processing circuit, signal
Process circuit is connected with MCU control circuit.By dimming interface and signal processing circuit, user can pass through peripheral control unit
Directly LED is controlled, such case there can be quick corresponding requirements to light fixture, have sternly to the photochromic and bright of lamp
The requirement of lattice either needs to use when more lamp is carried out while is controlled.
The utility model has following beneficial effect：
1. control mode is simple.Using switch on-off either directly by control port can be to lamp brightness or
Person is that colour temperature is controlled, it is not necessary to which extra remote control and other wireless devices, control are simple.
It is 2. highly reliable.Because having abandoned traditional controlled in wireless, reduce the interference in being wirelessly transferred, can accurately control
The state of each LED is made.
3. control circuit is simple.Relatively conventional wireless control module, simple physical control can provide more succinct
Circuit structure, convenient production and the maintenance in later stage.
Brief description of the drawings
Fig. 1 is a kind of structural representation with the LED control circuit for dimming and mixing colours function of the utility model.
Fig. 2 is a kind of structure of the MCU control circuit of the LED control circuit with the function that dims and mix colours of the utility model
Schematic diagram.
Fig. 3 is a kind of PWM＆PFC control circuits with the LED control circuit for dimming and mixing colours function of the utility model
Structural representation.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings so that it is of the present utility model a little
It is more easy to be readily appreciated by one skilled in the art with feature, so as to make the scope of protection of the utility model apparent define.
Embodiment 1
The present embodiment is as shown in figure 1, include em filtering circuit and rectification circuit U1, power switch circuit, PWM＆PFC
Control circuit, rectifier filter U4, U6 and U7, MCU control circuit, light emitting diode U5, MOSFET pipe and first and second LED
Lamp module.
Its connected mode is that outside civil power is connected by switching S1 with em filtering circuit with rectification circuit U1, battery filter
Wave circuit is grounded after being connected with rectification circuit U1 earth terminal by isolation capacitance, while earth terminal is connected with protective wire, electromagnetism
The output end of filter circuit and shaping circuit is connected with power switch circuit and PWM＆PFC control circuits, PWM＆PFC control circuits
Be connected with each other between power switch circuit, can enter the transmission of horizontal electrical signal between the two, PWM＆PFC control circuits also with rectification
Filter circuit U4 connections, the current rectifying and wave filtering circuit U4 other end are then connected with isolating transformer A1, the isolating transformer A1 other ends
It is connected after current rectifying and wave filtering circuit with MCU control circuit, while the isolating transformer A1 other end also directly controls electricity with MCU
Road is connected, and MCU control circuit is connected by a light emitting diode U5 with PWM＆PFC control circuits.
It is connected in one end of power switch circuit, while with isolating transformer A2, the isolating transformer A2 other end passes through
After current rectifying and wave filtering circuit U6, it is attached with the first LED module and the second LED module, the other end of the first LED module
Then the drain electrode with the first MOSFET pipes is connected, and the grid of the first MOSFET pipes is connected with MCU control circuit, the second LED module
The other end be connected with the drain electrode of the 2nd MOSFET pipes, the 2nd MOSFET drain electrode after negative circuit with MCU control circuit
Connection.The source grounding of first and second MOSFET pipe.
Also include dimming interface and signal processing circuit, after dimming interface with signal processing circuit by being connected, pass through
Signal processing circuit is connected with MCU control circuit.
Embodiment 2
When needing to operate LED module, it is only necessary to quickly split to put row closed and disconnected, caused letter into
Number make-and-break signal first passes around that em filtering circuit carries out noise reduction with rectification circuit U1 and shaping, the signal after processing pass through PWM＆
After the adjustment of PFC control circuit, deliver in MCU control circuit and come out of the stove, MCU control circuit is secondary according to switch S1 break-make
Number, sends corresponding control signal, so as to control the first LED module to carry out illuminating for different mode with the second LED module
Pattern.
Embodiment 3
Need to the first and second LED modules carry out direct regulation and control when, can by outside controller directly with outside
The dimming interface connection in portion, external signal are entered by dimming interface, and the place of noise reduction and shaping is carried out by signal processing circuit
After reason, handled by MCU control circuit, MCU control circuit controls first and second LED module to carry out according to control information
It is shinny.
Embodiment 4
The present embodiment is substantially the same manner as Example 1, and difference is, PWM＆PFC control circuits are specifically as shown in Figure 2.
PWM＆PFC control circuits include chip STC15W404AS, and 2 ports of chip are parallel with voltage-regulator diode D9 and electric capacity C11,
Both other end ground connection, while 2 ports of chip are also connected with resistance R22.
The port 6 of chip is attached with electric capacity C10, and VCC2 is attached with electric capacity C10, electric capacity C10 other ends ground connection.
Port 8 is grounded.
Port 16 is connected after being connected with resistance R42 with VCC2, port 16 is connected with electric capacity C20, electric capacity C20 another termination
Ground, port 16 are connected with the cut-off end of diode, the input end grounding of diode.
Port 15 is grounded after being connected with resistance R45, and port 15 is also connected with resistance R43, resistance the R43 other end and electric capacity
C21 connections, electric capacity C21 other end ground connection.
Port 11 is connected after being connected with resistance R46 with VCC2, and colleague port 11 is also connected with PWM1 signal source.
Remaining port is vacantly set.
Embodiment 5
The present embodiment is substantially the same manner as Example 1, and difference is, MCU control circuit it is specific as shown in figure 3,
The present embodiment includes process chip MP4033, and the port 1 of chip is connected with external circuit, and port 2 then connects simultaneously
After the diode D6 and resistance R19 of connection state, ground connection.After port 2 is connected with resistance R18 simultaneously, it is connected with external circuit.
Port 3 and three electric capacity C4, C5 in parallel and voltage-regulator diode D1 be connecteds, after, be grounded, at the same port 3 also with electricity
R7 connections are hindered, are being connected after diode D2 with external circuit.
Port 10 is grounded after being attached with electric capacity C8, and port 9 is grounded, and port 8 is grounded after electric capacity C9.
Port 7 exports after being connected with four resistance R13, R14, R15 and R16 in parallel, output head grounding, while output end
Also it is connected with CY3, CY3 other end ground connection.
Port 6 is connected with external circuit.
Embodiment of the present utility model is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Above-mentioned embodiment, in those of ordinary skill in the art's possessed knowledge, the utility model can also not departed from
Various changes can be made on the premise of objective.
Claims (9)
1. a kind of have the LED control circuit for dimming and mixing colours function, it is characterised in that including switching S1, rectification circuit, power
On-off circuit, pwm control circuit, MCU control circuit, negative circuit, external dimmer port, the first LED module and the 2nd LED
Lamp module, described switch S1 are connected with live wire, and live wire is connected with zero line with rectification circuit, described rectification circuit external capacitor
C1, the electric capacity C1 other ends and shielding line grounding connection, rectification circuit output end connect with power switch circuit and pwm control circuit
Connect, be connected with each other between power switch circuit and pwm control circuit, power control circuit is controlled by isolating transformer G1 and MCU
Circuit processed connection, the output end of MCU control circuit are connected with the first LED module, and the output end of MCU control circuit passes through anti-phase
Circuit is connected with the second LED module, and power switch circuit passes through isolating transformer G2 and the first LED module and the 2nd LED
Lamp module is connected, and external dimmer port is connected with MCU control circuit.
2. a kind of LED control circuit with light modulation and toning function according to claim 1, it is characterised in that also wrap
Em filtering circuit is included, described em filtering circuit is connected with rectification circuit.
3. a kind of LED control circuit with light modulation and toning function according to claim 1, it is characterised in that also wrap
Three circuit structure identical current rectifying and wave filtering circuits U4, U6 and U7 are included, it is electric that described current rectifying and wave filtering circuit U4 is arranged on PWM controls
Between road and isolating transformer G1, described current rectifying and wave filtering circuit U7 is arranged between isolating transformer G1 and MCU control circuit,
Current rectifying and wave filtering circuit U6 described in described rectifier filter is arranged on isolating transformer G2 and the first LED module and second
Between LED module.
4. a kind of LED control circuit with light modulation and toning function according to claim 3, it is characterised in that described
Current rectifying and wave filtering circuit U6 ground connection.
5. a kind of LED control circuit with light modulation and toning function according to claim 1, it is characterised in that also wrap
PFC correcting circuits are included, described PFC correcting circuits are connected with pwm control circuit.
6. a kind of LED control circuit with light modulation and toning function according to claim 1, it is characterised in that also wrap
Signal processing circuit is included, described signal processing circuit is arranged between external dimmer port and MCU control circuit.
7. a kind of LED control circuit with light modulation and toning function according to claim 1, it is characterised in that described
The first LED module and the second LED module include LED and N-channel MOS FET, LED and N-channel MOS FET leakage
Pole is connected, and grid is connected with MCU control circuit, source ground.
8. a kind of LED control circuit with light modulation and toning function according to claim 7, it is characterised in that described
The first LED module and the quantity of LED that is included of the second LED module be three, be cascaded structure.
9. a kind of LED control circuit with light modulation and toning function according to claim 1, it is characterised in that also wrap
Dimming interface and signal processing circuit are included, described dimming interface is connected with signal processing circuit, signal processing circuit and MCU
Control circuit connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720750624.4U CN206851095U (en) | 2017-06-26 | 2017-06-26 | It is a kind of that there is the LED control circuit for dimming and mixing colours function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720750624.4U CN206851095U (en) | 2017-06-26 | 2017-06-26 | It is a kind of that there is the LED control circuit for dimming and mixing colours function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206851095U true CN206851095U (en) | 2018-01-05 |
Family
ID=60802570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720750624.4U Active CN206851095U (en) | 2017-06-26 | 2017-06-26 | It is a kind of that there is the LED control circuit for dimming and mixing colours function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206851095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021136257A1 (en) * | 2019-12-30 | 2021-07-08 | Bright Power Semiconductor, Inc. | Color led driving circuit and color controller |
-
2017
- 2017-06-26 CN CN201720750624.4U patent/CN206851095U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021136257A1 (en) * | 2019-12-30 | 2021-07-08 | Bright Power Semiconductor, Inc. | Color led driving circuit and color controller |
| US11979953B2 (en) | 2019-12-30 | 2024-05-07 | Bright Power Semiconductor, Inc. | Color LED driving circuit and color controller |
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