CN208572484U - A kind of WIFI lamp-controlling circuit - Google Patents
A kind of WIFI lamp-controlling circuit Download PDFInfo
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- CN208572484U CN208572484U CN201820634013.8U CN201820634013U CN208572484U CN 208572484 U CN208572484 U CN 208572484U CN 201820634013 U CN201820634013 U CN 201820634013U CN 208572484 U CN208572484 U CN 208572484U
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Abstract
The utility model relates to a kind of WIFI lamp-controlling circuits, it is characterised in that: including rectification circuit, the first constant-current drive circuit, pwm control circuit, constant voltage circuit, WIFI module and main control module；The rectification circuit output end is separately connected first constant-current drive circuit and constant voltage circuit；The constant voltage circuit exports 5V power supply to the main control module and WiFi module, and the WIFI module signal output end is connect with the main control module control signal；The main control module further includes the enabled output end connecting with the pwm control circuit；The output control terminal of first constant-current drive circuit is additionally provided with the switching circuit of ground connection, and the switching circuit on state is controlled by the main control module.A kind of WIFI lamp-controlling circuit of the utility model, plays following technical effect: networking is realized by WIFI module, can the equipment in the access WiFi network such as reason APP realize remote control.The operation of lamp light-regulating and shutdown is effectively ensured, scintillation occurs after avoiding lamps and lanterns from turning off.
Description
Technical field
The utility model relates to illuminate the drive area of household electrical appliances more particularly to a kind of WIFI lamp-controlling circuit.
Background technique
With popularizing for LED illumination lamp, the function of more and more LED illumination lamps also develops more and more, market
Control circuit used by the band LED lamp of listing is mostly radio frequency control, and this control is all one-to-one control mode, no
Conducive to building for smart home.
In addition in lamp prosecutor face, in the case where being controlled using pwm signal, when needing to turn off, there may be can not
The case where shutdown, causes LED module flashing lamp phenomenon occur in this way.
Summary of the invention
In order to solve the above-mentioned technical problem the utility model, provides a kind of WIFI lamp-controlling circuit.
A kind of WIFI lamp-controlling circuit, including rectification circuit, the first constant-current drive circuit, pwm control circuit, constant voltage circuit,
WIFI module and main control module.The rectification circuit output end is separately connected first constant-current drive circuit and constant pressure electricity
Road；The constant voltage circuit exports 5V power supply to the main control module and WiFi module, the WIFI module signal output end with
The main control module control signal connection；The main control module further includes the enabled output connecting with the pwm control circuit
End；The output control terminal of first constant-current drive circuit is additionally provided with the switching circuit of ground connection, the switching circuit on state
It is controlled by the main control module.
Further, first constant-current drive circuit includes constant-current driven chip, diode D1 and metal-oxide-semiconductor Q1；Institute
Stating constant-current driven chip includes output control terminal, electric current setting pin and light modulation input terminal；The wherein output control terminal connection
The grid of metal-oxide-semiconductor Q1；The source electrode of metal-oxide-semiconductor is grounded by resistance R1, while pin is arranged by the resistance R2 connection electric current,
The negative input end of drain electrode the first LED module of connection.
Further, the switching circuit includes switching tube Q2, resistance R3 and resistance R4；The main control module further includes
The shutdown control terminal being connect by resistance R4 with the switching tube Q2 grid；The source electrode of the pipe Q2 that opens the light is connect by resistance R3
Ground, drain electrode connect the output control terminal.
Further, the pwm control circuit includes open the light pipe Q3, resistance R5, resistance R6, resistance R7 and resistance R8,
Resistance R7 connects latter end ground connection with resistance R8, and the other end connects pwm signal source；The grid of the switching tube Q3 connects resistance R7
With the node between resistance R8, source electrode ground connection, drain electrode connects the light modulation input terminal；Resistance R5 connects latter termination with resistance R6
Ground, the other end connect the output end of the rectification circuit, and the leakage of the node connection switch pipe Q3 between resistance R5 and resistance R6
Pole.
Further, the pwm signal source is WIFI module.
Further, the constant voltage circuit includes constant pressure chip；The constant pressure chip includes that 4 tunnels are connected with the rectifying circuit
Power input pin, VDD input pin, current sample pin and Voltage Feedback pin, the current sample pin by according to
Secondary concatenated resistance R11, inductance coil L1 and resistance R10 ground connection.It is connected after Voltage Feedback pin Opposite direction connection diode D1
The output end of the constant voltage circuit, while also passing through the node between capacitor C2 connection inductance coil L1 and resistance R11.Electric current
The anode of sampling pin and diode D1 are also connected with the node between inductance coil L1 and resistance R10；Inductance coil L1 and
It is grounded after node also Opposite direction connection diode D2 between resistance R11；The VDD input pin is described whole by resistance R9 connection
The output end of current circuit.
Further, the rectification circuit is bridge rectifier.
Further, the main control module is one-chip computer module.
It further, further include the second constant-current drive circuit and the second LED module, the second constant-current driven module electricity
Line structure is identical as the constant-current drive circuit, and is parallel relationship with the constant-current drive circuit, the main control module difference
Control the first constant-current drive circuit and the second constant-current drive circuit, the second LED module color and first LED module
Color is different.
A kind of WIFI lamp-controlling circuit of the utility model, plays following technical effect: networking is realized by WIFI module, it can
The equipment that reason APP etc. is accessed in WiFi network realizes remote control.
The operation of lamp light-regulating and shutdown is effectively ensured, scintillation occurs after avoiding lamps and lanterns from turning off.
Detailed description of the invention
Fig. 1 is the architecture principle figure of the utility model.
Fig. 2 is the circuit diagram of the utility model.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It is easier to be readily appreciated by one skilled in the art with feature, to make apparent define to the protection scope of the utility model.
Embodiment 1:
As shown in Figure 1, the utility model provides a kind of WIFI lamp-controlling circuit, including rectification circuit 1, the first constant current driving electricity
Road 2, pwm control circuit 3, constant voltage circuit 4, WIFI module 5 and main control module 6.
Wherein main control module 6 is single chip circuit module, is mainly used for according to user's operation and receives long-range
The parameters such as the brightness of lamps and lanterns are adjusted in control instruction.The present embodiment preferably uses the single-chip microcontroller of model STM8S003 series
Chip module circuit.In order to realize the reception of remote control commands, the communication of teledata is realized by WIFI module 5, this
In embodiment, WIFI module 5 is communicated using I2C and serial signal communicates, built-in standard communication protocol, in access net
After network, main control module 6 can receive long-range control instruction by WIFI module 5 and its standard agreement, carry out as switched
Lamp, the adjusting of the functions such as lamp brightness, color.5 model of WIFI module of the present embodiment can with but be not only limited to E103-W01-
IPX.Instruction transmission can be realized by serial communication using WIFI module 5 and 6 bracket of main control module.
Rectification circuit 1 is used to for the alternating current of high pressure being converted into the direct current of appropriate voltage, for for entire lamp hole electricity
The power supply on road, it is preferred that the present embodiment is using bridge rectifier.
First constant-current drive circuit 2 then for the power supply to LED module output constant current, guarantees the normal work of LED module
Make.In order to realize the adjusting of lamp brightness, need to input a PWM light modulation to constant-current drive circuit by pwm control circuit 3
Signal.
In addition, also needing to pass through perseverance since the supply voltage that the part of module such as WIFI module 5 need is constant low pressure
Voltage is converted and is compensated constant by die block.Guarantee the steady operation of the modules such as WIFI module 5.
In terms of connection between modules circuit, 1 output end of rectification circuit is separately connected the first constant-current drive circuit 2
And constant voltage circuit 4.Constant voltage circuit 4 exports 5V power supply, 5 signal output end of WIFI module to main control module 6 and WIFI module 5
It is connect with 6 control signal of main control module；Main control module 6 further includes the enabled output end connecting with pwm control circuit 3.First
The output control terminal GATE of constant-current drive circuit is additionally provided with the switching circuit 7 of ground connection, and 7 on state of switching circuit is by main control module
6 controls.
Specifically, as shown in Fig. 2, the first constant-current drive circuit 2 includes that constant current drives core in terms of constant-current drive circuit
Piece, diode D1 and metal-oxide-semiconductor Q1；Constant-current driven chip includes that output control terminal GATE, electric current setting pin SET and light modulation are defeated
Enter to hold DIM；The wherein grid of output control terminal GATE connection metal-oxide-semiconductor Q1；The source electrode of metal-oxide-semiconductor Q1 is grounded by resistance R1, simultaneously
By resistance R2 connection electric current, pin SET, the negative input end of drain electrode the first LED module of connection are set.Light modulation input terminal DIM is used for
Receive the dim signal of pwm control circuit 3.
Under normal circumstances, even if constant-current drive circuit is dimming input pin when receiving minimum pwm signal, output
Control pin still is possible to that metal-oxide-semiconductor Q1 can be driven to be connected, so that LED module is lighted, in order to turn off output control signal at any time,
It is as follows that switching circuit 7 is set, switching circuit 7 includes switching tube Q2, resistance R3 and resistance R4；Main control module 6 further includes passing through
The shutdown control terminal that resistance R4 is connect with switching tube Q2 grid；The source electrode of pipe Q2 of opening the light is grounded by resistance R3, and drain electrode connection is defeated
Control terminal GATE out.When 6 switch tube Q2 of main control module exports high level, switching tube Q2 conducting, thus by output control terminal
The level of GATE drags down, and makes pipe Q1 cut-off of opening the light, to guarantee that LED module turns off.When not needing control, then low electricity is exported
Flat, switching tube Q2 cut-off does not influence circuit output.
At the aspect of pwm control circuit 3, pwm control circuit 3 include open the light pipe Q3, resistance R5, resistance R6, resistance R7 and
Resistance R8, resistance R7 and resistance R8 connect latter end ground connection, and the other end connects pwm signal source；The grid of switching tube Q3 connects electricity
Hinder the node between R7 and resistance R8, source electrode ground connection, drain electrode connection light modulation input terminal DIM；Resistance R5 connects latter with resistance R6
End ground connection, the other end connect the output end of rectification circuit 1, and the leakage of the node connection switch pipe Q3 between resistance R5 and resistance R6
Pole.After being driven by pwm signal source switch tube Q3, to export effective dim signal to light modulation input pin.
Pwm signal source can with but be not limited only to be issued by main control module 6 or WIFI module 5.
At 4 aspect of constant voltage circuit, constant voltage circuit 4 includes constant pressure chip；Constant pressure chip includes that 4 tunnels are connect with rectification circuit 1
Power input pin C, current sample pin CS and Voltage Feedback pin FB, current sample pin CS, which passes through, to be sequentially connected in series
Resistance R11, inductance coil L1 and resistance R10 ground connection.Also pass through electricity between current sample pin CS and VDD input pin VDD
Hold C1 connection.The output end of constant voltage circuit 4 is connected after Voltage Feedback pin FB Opposite direction connection diode D1, while also passing through capacitor
Node between C2 connection inductance coil L1 and resistance R11；The anode of diode D1 is also connected with inductance coil L1 and resistance
Node between R10；It is grounded after node also Opposite direction connection diode D2 between inductance coil L1 and resistance R11；VDD input
Pin VDD passes through the output end of resistance R9 connection rectification circuit 1.
Embodiment 2:
As the improvement of embodiment 1, the present embodiment the difference from embodiment 1 is that, the present embodiment further includes the second constant current
Driving circuit and the second LED module.Second constant-current drive circuit and the 2nd LED driven by the second constant-current drive circuit
The circuit structure of mould group is identical as the first constant-current drive circuit 2.It is controlled respectively to realize, main control module 6 needs to expand accordingly
Put on display two I/O ports, one output pwm signal, secondly output cut-off signals.Second constant-current drive circuit and first simultaneously
Constant-current drive circuit 2 is parallel relationship, equally can obtain power supply from rectification circuit 1.Preferred second LED module simultaneously
Color can be set different from the first LED module color, to achieve the purpose that toning.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
Various changes can be made under the premise of objective.
Claims (9)
1. a kind of WIFI lamp-controlling circuit, it is characterised in that: including rectification circuit, the first constant-current drive circuit, pwm control circuit,
Constant voltage circuit, WIFI module and main control module；The rectification circuit output end is separately connected first constant-current drive circuit
And constant voltage circuit；The constant voltage circuit exports 5V power supply, the WIFI module letter to the main control module and WiFi module
Number output end is connect with the main control module control signal；The main control module further includes connecting with the pwm control circuit
Enabled output end；The output control terminal of first constant-current drive circuit is additionally provided with the switching circuit of ground connection, the switch electricity
Road on state is controlled by the main control module.
2. WIFI lamp-controlling circuit according to claim 1, which is characterized in that first constant-current drive circuit includes constant current
Driving chip, diode D1 and metal-oxide-semiconductor Q1；The constant-current driven chip includes output control terminal, electric current setting pin and tune
Light input end；The wherein grid of the output control terminal connection metal-oxide-semiconductor Q1；The source electrode of metal-oxide-semiconductor is grounded by resistance R1, simultaneously
By the resistance R2 connection electric current, pin, the negative input end of drain electrode the first LED module of connection are set.
3. WIFI lamp-controlling circuit according to claim 2, which is characterized in that the switching circuit includes switching tube Q2, electricity
Hinder R3 and resistance R4；The main control module further includes the shutdown control being connect by resistance R4 with the switching tube Q2 grid
End；The source electrode of the pipe Q2 that opens the light is grounded by resistance R3, and drain electrode connects the output control terminal.
4. WIFI lamp-controlling circuit according to claim 2, which is characterized in that the pwm control circuit include open the light pipe Q3,
Resistance R5, resistance R6, resistance R7 and resistance R8, resistance R7 connect latter end ground connection with resistance R8, and the other end connects pwm signal
Source；Node between the grid connection resistance R7 and resistance R8 of the switching tube Q3, source electrode ground connection, the drain electrode connection light modulation are defeated
Enter end；Resistance R5 connects latter end ground connection with resistance R6, and the other end connects the output end of the rectification circuit, and resistance R5 and electricity
Hinder the drain electrode of the node connection switch pipe Q3 between R6.
5. WIFI lamp-controlling circuit according to claim 4, which is characterized in that the pwm signal source is WIFI module.
6. WIFI lamp-controlling circuit according to claim 1, which is characterized in that the constant voltage circuit includes constant pressure chip；Institute
Stating constant pressure chip includes power input pin, VDD input pin, current sample pin and the electricity that 4 tunnels are connected with the rectifying circuit
Feedback pin is pressed, the current sample pin passes through the resistance R11, the inductance coil L1 that are sequentially connected in series and resistance R10 ground connection；Electricity
The output end of the constant voltage circuit is connected after pressure feedback pin Opposite direction connection diode D1, while also passing through capacitor C2 connection inductance
Node between coil L1 and resistance R11；The anode of diode D1 is also connected with the section between inductance coil L1 and resistance R10
Point；It is grounded after node also Opposite direction connection diode D2 between inductance coil L1 and resistance R11；The VDD input pin is logical
Cross the output end that resistance R9 connects the rectification circuit.
7. WIFI lamp-controlling circuit according to claim 1, which is characterized in that the rectification circuit is bridge rectifier.
8. WIFI lamp-controlling circuit according to claim 1, which is characterized in that the main control module is one-chip computer module.
9. WIFI lamp-controlling circuit according to claim 2, which is characterized in that further include the second constant-current drive circuit and
Two LED modules, the second constant-current driven module circuit structure is identical as first constant-current drive circuit, and with described first
Constant-current drive circuit is parallel relationship, and the main control module controls the first constant-current drive circuit and the second constant current driving electricity respectively
Road, the second LED module color are different from the first LED module color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820634013.8U CN208572484U (en) | 2018-04-29 | 2018-04-29 | A kind of WIFI lamp-controlling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820634013.8U CN208572484U (en) | 2018-04-29 | 2018-04-29 | A kind of WIFI lamp-controlling circuit |
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| Publication Number | Publication Date |
|---|---|
| CN208572484U true CN208572484U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820634013.8U Active CN208572484U (en) | 2018-04-29 | 2018-04-29 | A kind of WIFI lamp-controlling circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113873721A (en) * | 2020-06-30 | 2021-12-31 | 深圳市明微电子股份有限公司 | LED drive circuit and LED lighting device |
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2018
- 2018-04-29 CN CN201820634013.8U patent/CN208572484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113873721A (en) * | 2020-06-30 | 2021-12-31 | 深圳市明微电子股份有限公司 | LED drive circuit and LED lighting device |
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