CN209693096U - A kind of breath light control circuit - Google Patents
A kind of breath light control circuit Download PDFInfo
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- CN209693096U CN209693096U CN201821729152.5U CN201821729152U CN209693096U CN 209693096 U CN209693096 U CN 209693096U CN 201821729152 U CN201821729152 U CN 201821729152U CN 209693096 U CN209693096 U CN 209693096U
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- triode
- mcu
- pwm signal
- breath light
- resistance
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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 breath light control circuits, it is related to a kind of electronic circuit field, solving traditional breathing lamp control method is mainly to carry out breathing by more complicated program and software come control instructions lamp to shine, higher cost and the problem of be more troublesome, its key points of the technical solution are that: the MCU including the pwm signal for exporting different duty, and split two-way and be coupled to MCU with and meanwhile receive the pwm signal of different duty to realize the breathing circuit for lamp of breath light effect, a kind of breath light control circuit of the utility model, simplify the luminous circuit of indicator light breathing, it is reduced costs while guaranteeing that indicator light shines.
Description
Technical field
The utility model relates to a kind of electronic circuit field, in particular to a kind of breath light control circuit.
Background technique
Breath light refers to that light completes gradually changing from bright to dark under the control of micro computer, feels to seem that people exists
Breathing.It is widely used in the industries such as finance, business, government affairs, industry and commerce, can be used as POS machine, mobile phone, and computer etc. possesses instruction
The product of lamp.
Traditional breathing lamp control method is mainly by more complicated program and software come the progress of control instructions lamp
Breathing shines, and higher cost and is more troublesome, and there is room for improvement.
Utility model content
The purpose of the utility model is to provide a kind of breath light control circuits, simplify the luminous circuit of indicator light breathing,
It is reduced costs while guaranteeing that indicator light shines.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of breath light control circuit, MCU including the pwm signal for exporting different duty and splits two-way
And be coupled to MCU with and meanwhile receive the pwm signal of different duty to realize the breathing circuit for lamp of breath light effect.
Using the above scheme, being provided with for MCU is conducive to through pwm signal, and the breathing of effectively control breathing circuit for lamp shines
Frequency realizes the effect of breath light under the premise of integrated circuit is simple, and the reason of two-way is split additionally, due to breathing circuit for lamp,
The use of eupnea lamp is not influenced while reducing cost for I/0 mouthfuls of reduction.
Preferably, the pwm signal output pin of the MCU setting output different duty pwm signal.
Using the above scheme, by several output pins being arranged on MCU, be conducive to adjust breath light in actual needs
It when the breathing luminous frequency of circuit, can be realized by direct adjustment pin position, so as to avoid program tune is passed through
Save the trouble of frequency.
Preferably, the breathing circuit for lamp includes being coupled to MCU to receive pwm signal and export the selection of selection signal
Portion and selector is coupled to receive selection signal and realize the luminous illumination region of breathing in response to selection signal.
Using the above scheme, the waveform situation being conducive to when exporting according to pwm signal is provided with by selector, be in
Enable when rising edge selector start illumination region carry out it is luminous, and be in failing edge when make selector
It can stop shining for illumination region, by the above-mentioned course of work, realize the luminous effect of indicator light breathing.
Preferably, the illumination region includes power supply, is coupled to power supply to realize luminous luminescence unit and be set to
For making the luminous voltage point of voltage luminescence unit normal working voltage locating for luminescence unit between luminescence unit and power supply
Press unit.
Using the above scheme, it is conducive to make the be supplied to luminescence unit of power supply by being provided with for luminous voltage partial pressure unit
Voltage is the operating voltage that luminescence unit can work normally, to also ensure that the normal luminous of luminescence unit indirectly.
Preferably, the selector includes being coupled to MCU to receive pwm signal and export the selecting unit of selection signal
And it is set between selecting unit and MCU for making the trigger voltage of its triggered as normal voltage of voltage locating for selecting unit
Partial pressure unit.
Using the above scheme, voltage that selecting unit is born is advantageously ensured that by the setting of trigger voltage partial pressure unit
It is within the scope of its normal working voltage, to ensure that the normal use of selector.
Preferably, the breathing circuit for lamp includes that one end is connected to MCU to receive resistance RH1, the collector of pwm signal
It is connected to the triode Q2 of the other end of resistance RH1 and emitter ground connection, base stage is connected to the other end and emitter of resistance RH1
Triode Q1, the cathode of ground connection are connected to the Light-emitting diode LED of the collector of triode Q1-1A, one end are connected to luminous two
Pole pipe LED-1A and the other end are connected to the resistance RH3 of power supply VCC；
The breathing circuit for lamp further includes that one end is connected to MCU to receive resistance RH66, the collector of pwm signal and be connected to
The triode Q35 of the other end and the emitter ground connection of resistance RH1, base stage are connected to the other end of resistance RH66 and emitter is grounded
Triode Q34, cathode be connected to triode Q34 collector Light-emitting diode LED-1B, one end are connected to light-emitting diodes
Pipe LED-1B and the other end are connected to the resistance RH87 of power supply VCC.
Using the above scheme, by breathe above circuit for lamp circuit components and corresponding connection relationship, guaranteeing
Breath light reduces costs in the case where shining.
Preferably, triode Q2, triode Q1, triode Q34, triode Q35 are NPN triode.
Using the above scheme, it can be realized above-mentioned selection function by NPN triode, and NPN triode is in the market
It is more universal, facilitate the building of integrated circuit.
In conclusion the utility model has the following beneficial effects: by the breathing circuit for lamp setting of MCU and two-way,
Shining for eupnea lamp is also ensured while reducing I/0 mouthfuls.
Detailed description of the invention
Fig. 1 is the circuit connection diagram of breath light control circuit；
Fig. 2 is the schematic diagram of whole chip.
And realize that the required function of other lamps effect illustrates by breath light control circuit.
In figure: 1, MCU；2, circuit for lamp is breathed；4, selector；5, selecting unit；6, trigger voltage partial pressure unit；7, electric
Source；8, luminescence unit；9, luminous voltage partial pressure unit；10, illumination region.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing 1-2.
As shown in Figure 1, for the effect for realizing breath light, a kind of breath light control circuit includes for exporting different duty
Pwm signal MCU1 and split two-way and be coupled to MCU1 with and meanwhile receive the pwm signal of different duty to realize
The breathing circuit for lamp 2 of breath light effect, wherein MCU1 is micro-control unit, also known as one chip microcomputer or single-chip microcontroller, is
The frequency of central processing unit and specification are done appropriate reduction, and by memory, counter, USB, A/D conversion, UART, PLC, DMA etc.
Perimeter interface or even LCD driving circuit all integrate the computer for forming chip-scale on a single chip, are different applied fields
Various combination control is done in conjunction.
Further, for convenience of the duty ratio for adjusting PWM as needed, so that the adjusting of frequency is sent out breath light in realization,
The pwm signal output pin of several output different duty pwm signals is preset on MCU1 chip.
Wherein, breathing circuit for lamp 2 include be coupled to MCU1 with receive pwm signal and export the selector 4 of selection signal with
And selector 4 is coupled to receive selection signal and realize the luminous illumination region 10 of breathing in response to selection signal.
Selector 4 receives pwm signal including being coupled to MCU1 and exports the selecting unit 5 of selection signal and be set to
With single for dividing the trigger voltage of its triggered as normal voltage of voltage locating for selecting unit 5 between selecting unit 5 and MCU1
Member 6.
Trigger voltage partial pressure unit 6 includes that one end is connected to MCU1 to receive the resistance RH1 of pwm signal and one end and connect
MCU1 is connected to receive the resistance RH66 of pwm signal.
Selecting unit 5 includes that collector is connected to the other end of resistance RH1 and the triode Q2 of emitter ground connection, base stage company
It is connected to the triode Q1 of the other end of resistance RH1 and emitter ground connection, selecting unit 5 further includes that collector is connected to resistance RH1
The other end and emitter ground connection triode Q35, base stage be connected to resistance RH66 the other end and emitter ground connection three poles
Pipe Q34, triode Q2, triode Q35, triode Q34 are NPN type and model S9014.
Illumination region 10 includes power supply 7, is coupled to power supply 7 to realize luminous luminescence unit 8 and be set to luminescence unit
Using single for dividing the luminous voltage of 8 normal working voltage of voltage luminescence unit locating for luminescence unit 8 between 8 and power supply 7
Member 9.
Luminescence unit 8 includes that Light-emitting diode LED -1A, the cathode for the collector that cathode is connected to triode Q1 are connected to
Light-emitting diode LED-the 1B of the collector of triode Q34, luminous voltage partial pressure unit 9 include that one end is connected to light emitting diode
LED-1A and the other end are connected to the resistance RH3 of power supply 7VCC, one end is connected to Light-emitting diode LED -1B and the other end connects
In the resistance RH87 of power supply 7VCC.
The course of work of above-mentioned integrated circuit is as follows:
Two-way can be divided to synchronize pwm signal and be sent to different exhale when output pwm signal by MCU1 first
Circuit for lamp 2 is inhaled to realize the synchronously control to two groups of difference breathing circuit for lamp 2, reduces corresponding I/O mouthfuls of setting.
It, can when the waveform of pwm signal output is in rising edge in actually breathing 2 course of work of circuit for lamp
Trigger triode is luminous to guarantee that luminescence unit 8 carries out；Otherwise when the waveform of pwm signal output is in failing edge,
It will stop the continuous illumination of luminescence unit 8 due to being unable to trigger triode at this time, realize luminescence unit 8 by the above process
Breathing illumination effect.
In actual application, using above-mentioned principle, moreover it is possible to control according to actual needs 64 groups of lamps, thus real
Existing synchronous light-emitting effect, wave effect, circuits sequentially effect and closes effect rotates effe.
Below in conjunction with Fig. 1, Fig. 2 respectively to synchronous light-emitting effect, rotates effe, wave effect, circuit sequentially effect and
Effect is closed to be illustrated one by one.
Realize that the required function of other lamps effect is illustrated as follows by breath light control circuit for whole chip in Fig. 2:
Synchronous light-emitting effect passes through following procedure and realizes: make PWM1, PWM2 ... PWM33, PWM34 while recycling output
200HZ, the duty ratio for adjusting PWM is 0-100%,
Rotates effe is realized by following procedure: when LED-LLEFT is first 0, PWM to 17, secondly LED-LRIGHT is 0,
PWM1, PWM2 ... PWM33, PWM34 recycle the 200HZ of output progressive relationship simultaneously, and the duty ratio for adjusting PWM is 0-100%.
Wave effect is realized by following procedure: LED-LLEFT is first 0, LED-LRIGHT 1, PWM1 output；LED-
LLEFT is 1, LED-LRIGHT 0, PWM34 output；LED-LLEFT is 0, LED-LRIGHT 1, PWM2 output；LED-
LLEFT is 1, LED-LRIGHT 0, PWM33 output ... LED-LLEFT 0, LED-LRIGHT 1, PWM17 output；LED-
LLEFT is 1, LED-LRIGHT 0, and PWM18 output circuits sequentially.
Close effect: PWM1 ... PWM34, exporting is 0.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (6)
1. a kind of breath light control circuit, it is characterized in that: including the MCU(1 for exporting the pwm signal of different duty), with
And split two-way and be coupled to MCU with and meanwhile receive the pwm signal of different duty to realize the breath light of breath light effect
Circuit (2), the breathing circuit for lamp (2) they include being coupled to MCU(1) to receive pwm signal and export the selector of selection signal
(4) and selector (4) is coupled to receive selection signal and realize the luminous illumination region of breathing in response to selection signal
(10).
2. breath light control circuit according to claim 1, which is characterized in that the MCU(1) the different duties of setting output
Than the pwm signal output pin of pwm signal.
3. breath light control circuit according to claim 1, which is characterized in that the illumination region (10) include power supply (7),
Power supply (7) is coupled to realize luminous luminescence unit (8) and be set between luminescence unit (8) and power supply (7) to be used for
Make the luminous voltage partial pressure unit (9) of voltage luminescence unit (8) normal working voltage locating for luminescence unit (8).
4. breath light control circuit according to claim 1, which is characterized in that the selector (4) includes being coupled to MCU
(1) with receive pwm signal and export the selecting unit (5) of selection signal and be set to selecting unit (5) and MCU(1) between
For making the trigger voltage partial pressure unit (6) of its triggered as normal voltage of voltage locating for selecting unit (5).
5. breath light control circuit according to claim 1, which is characterized in that the breathing circuit for lamp (2) includes one end
MCU is connected to receive resistance RH1, the collector of pwm signal and be connected to the other end of resistance RH1 and three poles of emitter ground connection
Pipe Q2, base stage are connected to the current collection that triode Q1, the cathode that the other end of resistance RH1 and emitter are grounded are connected to triode Q1
Light-emitting diode LED-the 1A of pole, one end are connected to Light-emitting diode LED -1A and the other end is connected to the resistance of power supply (7) VCC
RH3；
Breathing circuit for lamp (2) further includes that one end is connected to MCU to receive resistance RH66, the collector of pwm signal and be connected to
The triode Q35 of the other end and the emitter ground connection of resistance RH1, base stage are connected to the other end of resistance RH66 and emitter is grounded
Triode Q34, cathode is connected to the Light-emitting diode LED -1B of collector of triode Q34, one end is connected to light-emitting diodes
Pipe LED-1B and the other end are connected to the resistance RH87 of power supply (7) VCC.
6. breath light control circuit according to claim 5, which is characterized in that triode Q2, triode Q1, triode
Q34, triode Q35 are NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729152.5U CN209693096U (en) | 2018-10-23 | 2018-10-23 | A kind of breath light control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729152.5U CN209693096U (en) | 2018-10-23 | 2018-10-23 | A kind of breath light control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209693096U true CN209693096U (en) | 2019-11-26 |
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ID=68594418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821729152.5U Active CN209693096U (en) | 2018-10-23 | 2018-10-23 | A kind of breath light control circuit |
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| Country | Link |
|---|---|
| CN (1) | CN209693096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111182700A (en) * | 2019-12-09 | 2020-05-19 | 宁波鑫合瑞电子有限公司 | Breathing lamp control method for Christmas lamp |
-
2018
- 2018-10-23 CN CN201821729152.5U patent/CN209693096U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111182700A (en) * | 2019-12-09 | 2020-05-19 | 宁波鑫合瑞电子有限公司 | Breathing lamp control method for Christmas lamp |
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