CN207854242U - A kind of switch tune LED luminance circuit with power failure memory function - Google Patents
A kind of switch tune LED luminance circuit with power failure memory function Download PDFInfo
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- CN207854242U CN207854242U CN201820252747.XU CN201820252747U CN207854242U CN 207854242 U CN207854242 U CN 207854242U CN 201820252747 U CN201820252747 U CN 201820252747U CN 207854242 U CN207854242 U CN 207854242U
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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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Abstract
A kind of switch tune LED luminance circuit with power failure memory function, including alternating current input rectification circuit, LED light group, LED drive circuit, MCU dormancy awakening circuits, MCU, MCU power supply circuits, alternating current signal deteching circuit.The utility model is capable of providing a kind of switch tune LED luminance circuit with power failure memory function, existing switch degree of lightening LED circuit is solved using functional chip, there is no the function of power-fail memory function, that is the brightness turned on light every time is all in a fixed gear, it every time will be manually mostly by going to be transferred to desired gear several times, the problem of can not realizing power-fail memory function brightness, and once mix up, being all that brightness later.
Description
Technical field
The utility model is related to a kind of switches to adjust LED luminance circuit more particularly to a kind of switch with power failure memory function
Adjust LED luminance circuit.
Background technology
Currently, switch degree of lightening LED circuit in the market is using functional chip, the not no function of power-fail memory function,
That is the brightness turned on light every time is all in a fixed gear, every time will manually mostly by going to be transferred to desired gear several times,
It can not realize power-fail memory function brightness, and once mix up, all be that brightness later.
Utility model content
The purpose of this utility model is to provide a kind of switch tune LED luminance circuit with power failure memory function, solves existing
Switch degree of lightening LED circuit using functional chip, the not no function of power-fail memory function, that is to say, that the brightness turned on light every time
All in a fixed gear, it can not realize that power-fail memory function is bright manually mostly by going to be transferred to desired gear several times every time
The problem of spending, and once mixing up, be all that brightness later.
Technical solution adopted by the utility model to solve its technical problems is：A kind of switch tune with power failure memory function
LED luminance circuit, including alternating current input rectification circuit, LED light group, LED drive circuit, MCU dormancy awakening circuits, MCU, MCU
Power supply circuit, alternating current signal deteching circuit；The input of alternating current input rectification circuit terminates alternating current, output termination LED light group, alternating current
Signal deteching circuit, MCU power supply circuits, LED light group input termination alternating current input rectification circuit, output termination LED drive circuit,
LED drive circuit input termination MCU, output termination LED light group, alternating current signal deteching circuit input termination alternating current input rectifying electricity
Road, output termination MCU, MCU power supply circuits input termination alternating current input rectification circuit, output termination MCU, MCU input termination city
Electrical signal detection circuit, MCU power supply circuits, MCU dormancy awakening circuits, output termination LED drive circuit.
Further, alternating current input rectification circuit includes protective tube, rectifier bridge stack, and the one of protective tube terminates alternating current input
L circuits, the ac input end and alternating current signal deteching circuit of another termination rectifier bridge stack, the ac input end of rectifier bridge stack and city
The N circuits of electricity input connect, and the negative output terminal ground connection of rectifier bridge stack, the positive output of rectifier bridge stack terminates alternating current signal deteching circuit
And the anode of LED light group.
Further, MCU power supply circuits include first resistor, second resistance, the first capacitance, the 4th capacitance, two pole of voltage stabilizing
Pipe, voltage stabilizing chip；Alternating current signal deteching circuit includes the 8th resistance, the 9th resistance, the tenth resistance, eleventh resistor, the 5th electricity
Hold；MCU includes MCU chip；One end of tenth resistance and protective tube connect, one end of the 9th resistance of another termination；9th resistance
The 8th resistance of another termination one end, one end of eleventh resistor and one end of the 5th capacitance；The other end of eleventh resistor
Connect 6 feet of MCU chip；The positive output of one termination rectifier bridge stack of the first connecting resistance, one end of another termination second resistance；Second
Cathode, one end of the 4th capacitance and the crus secunda of voltage stabilizing chip of another termination voltage stabilizing chip of resistance；The third of voltage stabilizing chip
Foot connects one end of the first capacitance and 10 feet of MCU chip；The other end of 8th resistance, the other end of the 5th capacitance, two pole of voltage stabilizing
The first foot ground connection of the anode of pipe, the other end of the 4th capacitance, the other end of the first capacitance and voltage stabilizing chip.
Further, MCU dormancy awakenings circuit includes 3rd resistor, the 7th resistance, third capacitance, one end of the 7th resistance
Connect 9 feet of MCU chip, one end of the other end and 3rd resistor, one end of third capacitance connect；The other end of three resistance, third
The other end of capacitance is grounded.
Further, LED drive circuit includes LED drive chip, the 4th resistance, the 5th resistance, the 6th resistance, and LED drives
1 foot of dynamic chip connects the negative terminal of LED light group, the 2 feet ground connection of LED drive chip, 1 foot of LED drive chip and the 4th resistance, the
Five resistance, the 6th resistance one end connect；1 foot of another termination MCU chip of the 4th resistance, another termination of the 5th resistance
2 feet of MCU chip, 3 feet of another termination MCU chip of the 6th resistance；7 feet, 8 feet, 4 feet of MCU chip are hanging, and 5 feet connect
Ground.
The beneficial effects of the utility model：Using the function of chip microcontroller power-fail memory function, microcontroller can be divided by power consumption
Plain edition and low-power consumption type, the low-power consumption of plain edition cost are high；Low-power consumption type is of high cost.If with the microcontroller of inexpensive high power consumption
To realize that this function, microcontroller will close all equipment of itself to achieve the purpose that power saving, and entrance Low-power-consumptiodormancy dormancy mould
Formula, then, it can not just carry out the wake operation of itself again；If in the case of no external wake signal, can only select
High-cost low-power scm realizes low-power consumption, increases the cost pressure of product.This circuit engineering is to be based on plain edition
Microcontroller is realized under power saving suspend mode, and the wake-up of timing is realized with circuit, after the completing processing of the task, enters back into power saving
Suspend mode so that average power consumption is extremely low, to achieve the purpose that low cost, low-power consumption.
Judge the action of switch by detecting city's electric signal in the set time；MCU chip is used in LED circuit, and
The long-term power-off that light modulation data are carried out with the EEPROM of MCU chip preserves；Using the charge and discharge time response of capacitance-resistance, it to be used for MCU
Suspend mode timing wake-up, as long as first resistor, the value of second resistance and the first capacitance that entire circuit calculates, calculate charging
With the time of wake-up, you can long-term stable operation.
Below with reference to drawings and examples, the utility model is described in detail.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model.
Specific implementation mode
Embodiment, a kind of switch tune LED luminance circuit with power failure memory function as shown in Figure 1, including alternating current input
Rectification circuit 1, LED light group 2, LED drive circuit 3, MCU dormancy awakenings circuit 4, MCU5, MCU power supply circuits 6, the inspection of city's electric signal
Slowdown monitoring circuit 7；The input of alternating current input rectification circuit 1 terminates alternating current, output termination LED light group 2, alternating current signal deteching circuit 7,
MCU power supply circuits 6, the input termination alternating current of LED light group 2 input rectification circuit 1, output termination LED drive circuit 3, LED driving electricity
The input of road 3 termination MCU5, output termination LED light group 2, the input termination alternating current of alternating current signal deteching circuit 7 input rectification circuit 1,
Output termination MCU5, the input termination alternating current of MCU power supply circuits 6 input rectification circuit 1, output termination MCU5, MCU5 input termination
Alternating current signal deteching circuit 7, MCU power supply circuits 6, MCU dormancy awakenings circuit 4, output termination LED drive circuit 3.
Alternating current input rectification circuit 1 includes protective tube F1, rectifier bridge stack DB1, the L of a termination alternating current input of protective tube F1
Circuit, the ac input end and alternating current signal deteching circuit 7 of another termination rectifier bridge stack DB1, the exchange input of rectifier bridge stack DB1
The N circuits of end and alternating current input connect, and the negative output terminal of rectifier bridge stack DB1 is grounded GND, the positive output termination of rectifier bridge stack DB1
The anode of alternating current signal deteching circuit and LED light group.
MCU power supply circuits 6 include first resistor R1, second resistance R2, the first capacitance C1, the 4th capacitance C4, two pole of voltage stabilizing
Pipe DZ1, voltage stabilizing chip U3；Alternating current signal deteching circuit 7 includes the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the tenth
One resistance R11, the 5th capacitance C5；MCU5 includes MCU chip U2；One end of tenth resistance R10 and protective tube F1 connect, the other end
Connect one end of the 9th resistance R9；One end of the 8th resistance R8 of another termination of 9th resistance R9, one end of eleventh resistor R11 and
One end of 5th capacitance C5；6 feet of another termination MCU chip U2 of eleventh resistor R11；A termination of first connecting resistance R1 is whole
Flow the positive output of bridge heap DB1, one end of another termination second resistance R2；Another termination voltage stabilizing chip DZ1's of second resistance R2
The crus secunda of cathode, one end of the 4th capacitance C4 and voltage stabilizing chip U3；The third foot of voltage stabilizing chip U3 meets the one of the first capacitance C1
10 feet of end and MCU chip U2；The other end of 8th resistance R8, the other end of the 5th capacitance C5, zener diode DZ1 are just
Pole, the other end of the 4th capacitance C4, the other end of the first capacitance C1 and voltage stabilizing chip U3 the first foot be grounded GND.
MCU dormancy awakenings circuit 4 includes 3rd resistor R3, the 7th resistance R7, third capacitance C3, one end of the 7th resistance R7
Connect 9 feet of MCU chip U2, one end of the other end and 3rd resistor R3, one end of third capacitance C3 connect；Three resistance R3's is another
It holds, the other end of third capacitance C3 is grounded GND.
LED drive circuit 3 includes LED drive chip U1, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, and LED drives
1 foot of dynamic chip U1 connects the negative terminal of LED light group, and 2 feet of LED drive chip U1 are grounded GND, 1 foot of LED drive chip U1 and the
Four resistance R4, the 5th resistance R5, the 6th resistance R6 one end connect；1 foot of another termination MCU chip U2 of 4th resistance R4,
2 feet of another termination MCU chip U2 of 5th resistance R5,3 feet of another termination MCU chip U2 of the 6th resistance R6；MCU chip
7 feet, 8 feet, 4 feet of U2 are hanging, and 5 feet are grounded GND.
The circuit course of work：
After the power is turned on, after electric current is by protective tube F1, rectified bridge heap DB1 is rectified into direct current and powers for LED light group alternating current；
And pass through first resistor R1 and second resistance R2, through zener diode DZ1 and the 4th preliminary voltage stabilizings of capacitance C4 and consider wave, then via
Wave supply single-chip microprocessor MCU work is considered in voltage stabilizing to voltage stabilizing chip U3 and the first capacitance C1 again；City's electric signal is through the tenth resistance simultaneously
R10, the 9th resistance R9, the 8th resistance R8 partial pressures are provided through the 5th capacitance C5 removal interference, then through eleventh resistor R11 to MCU
Work；
Microcontroller after the power is turned on, interrupts multiplexing port and is set to output mode, export high level, electric current is by the 7th resistance R7
The C3 chargings of third capacitance；And run program；After completing program, capacitance is also filled with, and the interruption multiplexing port of microcontroller is set to defeated
Enter pattern, and it is that failing edge triggers, and enters Low-power-consumptiodormancy dormancy pattern to open interruption, at this point, microcontroller not power consumption substantially, waits for outer
The failing edge in portion triggers to wake up.Meanwhile 3rd resistor R3 can slowly discharge to third capacitance C3, the time can be by
The parameter of three resistance R3, the 7th resistance R7 and third capacitance C3 determine, until capacitance discharges into the detection that microcontroller triggers pin
When level, microcontroller can be waken up, recycles the workflow of beginning.
Microcontroller searches out switching signal, realizes that switch is primary within a certain period of time by constantly detecting city's electric signal
Just dim a gear, be more than setting time not counting, and timing preserve in current light modulation data to EEPROM, opened for next time
It is used when lamp, light modulation data are using a foot, two feet, three feet of MCU chip U2, point three shelves, pass through the 4th resistance R4, the
LED drive chip U1 control LED light groups are used in combination in five resistance R5, the 6th resistance R6, the third foot of control LED drive chip U1
Electric current realizes light modulation.
The utility model is exemplarily described above in association with attached drawing.Obviously, the utility model implements not
It is limited by aforesaid way.As long as using the various unsubstantialities of the methodology and technical solution progress of the utility model
Improvement；Or it is not improved, above-mentioned design and technical solution by the utility model directly apply to other occasions, at this
Within the protection domain of utility model.
Claims (5)
1. a kind of switch tune LED luminance circuit with power failure memory function, it is characterised in that：Including alternating current input rectification circuit
(1), LED light group (2), LED drive circuit (3), MCU dormancy awakenings circuit (4), MCU (5), MCU power supply circuits (6), city's telecommunications
Number detection circuit (7)；The input of alternating current input rectification circuit (1) terminates alternating current, output termination LED light group (2), the inspection of city's electric signal
Slowdown monitoring circuit (7), MCU power supply circuits (6), LED light group (2) input termination alternating current input rectification circuit (1), output termination LED drive
Dynamic circuit (3), LED drive circuit (3) input termination MCU (5), output termination LED light group (2), alternating current signal deteching circuit (7)
Input termination alternating current input rectification circuit (1), output termination MCU (5), MCU power supply circuits (6) input termination alternating current input rectifying
Circuit (1), output termination MCU (5), MCU (5) input termination alternating current signal deteching circuit (7), MCU power supply circuits (6), MCU stop
Dormancy wake-up circuit (4), output termination LED drive circuit (3).
2. the switch tune LED luminance circuit according to claim 1 with power failure memory function, it is characterised in that：Alternating current is defeated
It includes protective tube (F1), rectifier bridge stack (DB1) to enter rectification circuit (1), and the one of protective tube (F1) terminates the L circuits of alternating current input,
The ac input end and alternating current signal deteching circuit (7) of another termination rectifier bridge stack (DB1), the exchange of rectifier bridge stack (DB1) are defeated
The N circuits for entering end and alternating current input connect, and the negative output terminal ground connection (GND) of rectifier bridge stack (DB1), rectifier bridge stack (DB1) is just
The anode of output termination alternating current signal deteching circuit and LED light group (2).
3. the switch tune LED luminance circuit according to claim 2 with power failure memory function, it is characterised in that：MCU powers
Circuit (6) includes first resistor (R1), second resistance (R2), the first capacitance (C1), the 4th capacitance (C4), zener diode
(DZ1), voltage stabilizing chip (U3)；Alternating current signal deteching circuit (7) includes the 8th resistance (R8), the 9th resistance (R9), the tenth resistance
(R10), eleventh resistor (R11), the 5th capacitance (C5)；MCU (5) includes MCU chip (U2)；One end of tenth resistance (R10)
Connect with protective tube (F1), one end of the 9th resistance (R9) of another termination；The 8th resistance of another termination of 9th resistance (R9)
(R8) one end of one end, eleventh resistor (R11) and one end of the 5th capacitance (C5)；The other end of eleventh resistor (R11)
Connect 6 feet of MCU chip (U2)；The positive output of one termination rectifier bridge stack (DB1) of the first connecting resistance (R1), the second electricity of another termination
Hinder the one end of (R2)；The cathode of another termination voltage stabilizing chip (DZ1) of second resistance (R2), one end of the 4th capacitance (C4) and steady
Press the crus secunda of chip (U3)；The third foot of voltage stabilizing chip (U3) connect the first capacitance (C1) one end and MCU chip (U2) 10
Foot；Anode, the 4th capacitance of the other end of 8th resistance (R8), the other end of the 5th capacitance (C5), zener diode (DZ1)
(C4) other end of the other end, the first capacitance (C1) and the first foot ground connection (GND) of voltage stabilizing chip (U3).
4. the switch tune LED luminance circuit according to claim 3 with power failure memory function, it is characterised in that：MCU suspend mode
Wake-up circuit (4) includes 3rd resistor (R3), the 7th resistance (R7), third capacitance (C3), a termination MCU of the 7th resistance (R7)
One end of 9 feet of chip (U2), the other end and 3rd resistor (R3), one end of third capacitance (C3) connect；Three resistance (R3)
The other end, third capacitance (C3) the other end be grounded (GND).
5. the switch tune LED luminance circuit according to claim 4 with power failure memory function, it is characterised in that：LED drives
Circuit (3) includes LED drive chip (U1), the 4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6), LED drive chip
(U1) 1 foot connects the negative terminal of LED light group, the 2 feet ground connection (GND) of LED drive chip (U1), 1 foot of LED drive chip (U1) and
4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6) one end connect；Another termination MCU core of 4th resistance (R4)
1 foot of piece (U2), 2 feet of another termination MCU chip (U2) of the 5th resistance (R5), another termination MCU of the 6th resistance (R6)
3 feet of chip (U2)；7 feet, 8 feet, 4 feet of MCU chip (U2) are hanging, and 5 feet are grounded (GND).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252747.XU CN207854242U (en) | 2018-02-12 | 2018-02-12 | A kind of switch tune LED luminance circuit with power failure memory function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252747.XU CN207854242U (en) | 2018-02-12 | 2018-02-12 | A kind of switch tune LED luminance circuit with power failure memory function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207854242U true CN207854242U (en) | 2018-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820252747.XU Active CN207854242U (en) | 2018-02-12 | 2018-02-12 | A kind of switch tune LED luminance circuit with power failure memory function |
Country Status (1)
| Country | Link |
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| CN (1) | CN207854242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497821A (en) * | 2019-08-20 | 2019-11-26 | 江西恒动新能源有限公司 | A kind of charging wake-up system and its control method |
| CN112689357A (en) * | 2021-01-16 | 2021-04-20 | 正阳县合兴灯饰有限公司 | LED double-color control method and controller |
-
2018
- 2018-02-12 CN CN201820252747.XU patent/CN207854242U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497821A (en) * | 2019-08-20 | 2019-11-26 | 江西恒动新能源有限公司 | A kind of charging wake-up system and its control method |
| CN112689357A (en) * | 2021-01-16 | 2021-04-20 | 正阳县合兴灯饰有限公司 | LED double-color control method and controller |
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