CN110856759A - Red and blue light therapeutic instrument control system - Google Patents
Red and blue light therapeutic instrument control system Download PDFInfo
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- CN110856759A CN110856759A CN201810976294.XA CN201810976294A CN110856759A CN 110856759 A CN110856759 A CN 110856759A CN 201810976294 A CN201810976294 A CN 201810976294A CN 110856759 A CN110856759 A CN 110856759A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0624—Apparatus adapted for a specific treatment for eliminating microbes, germs, bacteria on or in the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0626—Monitoring, verifying, controlling systems and methods
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0662—Visible light
- A61N2005/0663—Coloured light
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Abstract
The invention provides a red and blue light therapeutic instrument control system, which can select four light source modes by arranging a first PWM power control circuit and a second PWM control circuit, namely, a single red light mode, a single blue light mode, a double red light mode, a double blue light mode, a blue and red light mode and the frequency of a light source, wherein the double red light and double blue light modes have better effects than the single red light and single blue light modes and are suitable for patients with high injury degree; the whole device can select the light source mode and the light source frequency, and the patient can reasonably select the light source mode and the light source frequency according to the self condition.
Description
Technical Field
The invention relates to the field of red light therapeutic instruments, in particular to a control system of a red light and blue light therapeutic instrument.
Background
Red light therapeutic instruments on the market are all red light or red blue light therapeutic instruments, the red light therapy mainly plays a role in accelerating blood circulation and promoting wound healing, the red light and the blue light can change cell structures, kill bacteria, provide a suitable environment for new cells, enhance the generation of new collagen elastin and collagen, promote cell growth, repair inflammatory acne aged skin, relieve sunburn skin without damaging the skin, whiten the skin and promote the skin elasticity. At present, red light therapeutic instrument light source on the market is single, ubiquitous is single red light or red blue light therapeutic instrument together, the range of application is too little, patient's selection is also few, in addition, red light therapeutic instrument on the market all is only a frequency of operation, the wounded of different degrees all can only use a frequency of operation's therapeutic instrument, the patient that the degree of injury is little can be just good very fast through the therapeutic instrument, but the patient that the degree of injury is high need only be through long-term treatment just can be good, so, the red light therapeutic instrument control system that can adjust light source mode and light source power size is urgently needed now.
Disclosure of Invention
In view of this, the present invention provides a control system for red and blue light therapeutic apparatus, which can adjust the light source mode and the light source power.
The technical scheme of the invention is realized as follows: the invention provides a red and blue light therapeutic instrument control system, which comprises an MCU (microprogrammed control unit), a 5V power supply, a 12V power supply, a first PWM (pulse-width modulation) power control circuit and a second PWM power control circuit, wherein the 5V power supply and the 12V power supply are electrically connected with the MCU;
the first PWM power control circuit comprises a first red light drive circuit, a first blue light drive circuit, a first LED red light DX1, a first LED blue light DX2 and a first constant current chip U3 which ensures that the first LED red light DX1 and the first LED blue light DX2 output constant current;
the first red light driving circuit and the first blue light driving circuit are respectively electrically connected with the MCU, the first red light driving circuit is electrically connected with the first LED red light DX1, the first blue light driving circuit is electrically connected with the second LED blue light, the first LED red light DX1 and the first LED blue light DX2 are both electrically connected with the first constant current chip U3, and the first constant current chip U3 is electrically connected with the MCU;
the second PWM power control circuit comprises a second red light drive circuit, a second blue light drive circuit, a second LED red light, a second LED blue light and a second constant current chip U4 for ensuring the second LED red light and the second LED blue light to output constant current;
the second red light driving circuit and the second blue light driving circuit are respectively electrically connected with the MCU, the second red light driving circuit is electrically connected with the second LED red light DX3, the second blue light driving circuit is electrically connected with the second LED blue light DX4, the second LED red light DX3 and the second LED blue light DX4 are both electrically connected with the second constant current chip U4, and the second constant current chip U4 is electrically connected with the MCU.
On the basis of the technical scheme, preferably, the MCU is STC15W408AS-SOP20, and the models of the first constant current chip U3 and the second constant current chip U4 are MH 5016.
Further preferably, the first red driving circuit includes: the circuit comprises a resistor R3, a resistor R4, a photoelectric coupler U5 and an enhancement type field effect transistor Q1;
the first constant current chip U3 includes a peripheral circuit including: inductor L1, resistor R8, Schottky diode DS1 and resistor R1;
one end of a resistor R8 is electrically connected with a 19 th pin of the STC15W408AS-SOP20, the other end of the resistor R8 is electrically connected with a 3 rd pin of a first constant current chip U3, one end of a resistor R3 is electrically connected with a 5 th pin of the MCU, the other end of the resistor R3 is electrically connected with a 2 nd pin of a photocoupler U5, a 1 st pin of the photocoupler U5 is connected with a 5V power supply, a 3 rd pin of the photocoupler U5 is grounded, a 4 th pin of the photocoupler U5 is electrically connected with one end of a resistor R4 and a gate of an enhancement type field effect tube Q1, the other end of the resistor R375 is connected with a 12V power supply, a drain of the enhancement type field effect tube Q1 is electrically connected with an anode of a first LED red lamp DX1, a source of the enhancement type field effect tube Q1 is electrically connected with a 4 th pin of the first chip U3 and one end of a resistor R1, a cathode of the first LED red lamp DX1 is electrically connected with an L2, and a cathode of a Schottky diode DX 8456 is electrically connected with a first LED red lamp L47 and a And the cathode of the Schottky diode, the other end of the resistor R1 and the 5 th pin of the first constant current chip U3 are connected with a 12V power supply, and the 2 nd pin of the first constant current chip U3 is grounded.
Still further preferably, the first blue light driving circuit includes: the circuit comprises a resistor R5, a resistor R6, a photoelectric coupler U6 and an enhancement type field effect transistor Q2;
one end of the resistor R5 is electrically connected with the 6 th pin of the MCU, the other end of the resistor R5 is electrically connected with the 2 nd pin of the photoelectric coupler U6, the 1 st pin of the photoelectric coupler U6 is connected with a 5V power supply, the 3 rd pin of the photoelectric coupler U6 is grounded, the 4 th pin of the photoelectric coupler U6 is electrically connected with one end of the resistor R6 and the grid of the enhanced field-effect tube Q2, the other end of the resistor R6 is connected with a 12V power supply, the drain of the enhanced field-effect tube Q2 is electrically connected with the anode of the first LED blue lamp DX2, the source of the enhanced field-effect tube Q2 is electrically connected with the 4 th pin of the first constant current chip U3 and one end of the resistor R1, and the cathode of the first LED blue lamp DX2 is electrically connected with one end of the inductor L1.
Further preferably, the connection relations between the components and the devices of the first PWM power control circuit and the second PWM power control circuit are the same;
the connection relations among the components of the first red light drive circuit, the second red light drive circuit, the first blue light drive circuit and the second blue light drive circuit are the same.
On the basis of the above technical scheme, preferably, the display device further comprises a key circuit, a display screen control circuit, a beep control circuit and a FAN control circuit which are respectively and electrically connected with the MCU.
Further preferably, the display screen control circuit includes: an HT1621 type LCD driving chip U2 and a liquid crystal screen M1;
the 9 th to 12 th pins of the HT1621 type LCD driving chip are electrically connected with the 1 st to 4 th pins of the STC15W408AS-SOP20 in sequence and one to one correspondence, the 13 th pin of the HT1621 type LCD driving chip is grounded, and the 21 st to 24 th pins, the 8 th to 1 st pins and the 48 th to 43 th pins of the HT1621 type LCD driving chip are electrically connected with the 1 st to 13 th pins of the liquid crystal panel M1 in sequence and one to one correspondence.
Further preferably, the FAN control circuit includes: the device comprises a resistor R7, a resistor R26, a resistor R27, a fifth photoelectric coupler U7, an enhanced field effect transistor Q6 and a fan;
one end of the resistor R7 is electrically connected with the 7 th pin of STC15W408AS-SOP20, the other end of the resistor R7 is electrically connected with the 2 nd pin of the fifth photoelectric coupler U7, the 1 st pin of the fifth photoelectric coupler U7 is electrically connected with a 5V power supply, the 4 th pin of the fifth photoelectric coupler U7 is connected with a 12V power supply, the 3 rd pin of the fifth photoelectric coupler U7 is electrically connected with one end of the resistor R26, the other end of the resistor R26 is respectively electrically connected with one end of the resistor R27 and the grid of the enhanced field effect transistor Q6, the drain of the enhanced field effect transistor Q6 is electrically connected with the fan, and the source of the enhanced field effect transistor Q6 is grounded.
Further preferably, the beep control circuit includes: the circuit comprises a resistor R21, a resistor R22, a triode Q5, a diode D1 and a buzzer LS 1;
one end of a resistor R22 is electrically connected with the 14 th pin of STC15W408AS-SOP20, the other end of the resistor R22 is electrically connected with the base of a triode Q5, the emitter of the triode Q5 is electrically connected with a 5V power supply, the collector of a triode Q5 is electrically connected with the cathode of a diode D1 and one end of a buzzer LS1 respectively, the anode of a diode D1 is electrically connected with one end of the resistor R21 and one end of the buzzer LS1 respectively, and the other end of the resistor R21 is grounded.
Further preferably, the key circuit includes: a key S1, a key S2, a key S3, a key S4, a resistor R16, a resistor R17, a resistor R18 and a resistor R19;
one end of the key S1, one end of the key S2, one end of the key S3 and one end of the key S4 are respectively and sequentially electrically connected with one end of the resistor R16, one end of the resistor R17, one end of the resistor R18 and one end of the resistor R19 one by one, the other end of the key S1, the other end of the key S2, the other end of the key S3 and the other end of the key S4 are all grounded, and the other end of the resistor R16, the other end of the resistor R17, the other end of the resistor R18 and the other end of the resistor R19 are respectively and sequentially and electrically connected with 18 th to 15 th pins of STC15W408AS-SOP20 one by one.
Compared with the prior art, the red and blue light therapeutic apparatus control system has the following beneficial effects: (1) by arranging the first PWM power control circuit and the second PWM control circuit, four light source modes can be selected, namely a single red light mode, a single blue light mode, a double red light mode, a double blue light mode, a blue-red light mode and a light source frequency are selected, the efficacy of the double red light and the double blue light mode is better than that of the single red light and the single blue light mode, the double red light and the double blue light mode are suitable for patients with high injury degree, the five different light source modes and the adjustable frequency of the light source can meet the requirements of different patients, the double red light and double blue light mode is suitable for patients with different physiques, and;
(2) the whole device can select the light source mode and the light source frequency, and the patient can reasonably select the light source mode and the light source frequency according to the self condition.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a diagram of a control system of a red and blue light therapeutic apparatus according to the present invention;
FIG. 2 is a first red light driving circuit diagram and a first blue light driving circuit diagram of a red and blue light therapeutic apparatus control system according to the present invention;
FIG. 3 is a second red light driving circuit diagram and a second blue light driving circuit diagram of a red and blue light therapeutic apparatus control system according to the present invention;
FIG. 4 is a diagram of a control circuit of a display screen in a control system of a red/blue light therapeutic apparatus according to the present invention and a first filter circuit according to four embodiments of the present invention;
FIG. 5 is a FAN control circuit diagram of a control system of a red and blue light therapeutic apparatus according to the present invention;
FIG. 6 is a diagram of a beep control circuit in the control system of the red and blue light therapeutic apparatus of the present invention;
FIG. 7 is a connection diagram of a key circuit diagram and an STC15W408AS-SOP20 single chip microcomputer in the red and blue light therapeutic apparatus control system;
fig. 8 shows a fourth filter circuit and a third filter circuit in a control system of a red and blue light therapeutic apparatus according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment,
As shown in figure 1, the control system of the red and blue light therapeutic apparatus comprises an MCU, a 5V power supply, a 12V power supply, a first PWM power control circuit, a second PWM power control circuit, a key circuit and a display screen control circuit.
In this embodiment, as shown in fig. 7, the MCU is a STC15W408AS-SOP20 single chip microcomputer, and the first constant current chip and the second constant current chip are both MH 5016.
The first PWM power control circuit receives the LED lamp control signal and the LED lamp power control signal sent by the MCU, starts the LED lamps in different modes according to the LED lamp control signal, and generates different LED lamp powers according to the LED lamp power control signal. As shown in fig. 1, the first PWM power control circuit includes: the LED red light driving circuit comprises a first red light driving circuit, a first blue light driving circuit, a first LED red light DX1, a first LED blue light DX2 and a first constant current chip U3 which ensures that the first LED red light DX1 and the first LED blue light DX2 output constant currents, the first red light driving circuit is respectively electrically connected with the MCU and the first LED red light DX1, the first LED red light DX1 is electrically connected with the first constant current chip U3, the first constant current chip U3 is electrically connected with the MCU, the first blue light driving circuit is respectively electrically connected with the MCU and the first LED blue light DX2, and the first LED blue light DX2 is electrically connected with the first constant current chip U3. The second PWM power control circuit includes: the second red light driving circuit, the second blue light driving circuit, the second LED red light DX3 and the second LED blue light DX4, and the second constant current chip U4 which ensures that the second LED red light DX3 and the second LED blue light DX4 output constant current, the second red light driving circuit is electrically connected with the MCU and the second LED red light DX3 respectively, the second LED red light DX3 is electrically connected with the second constant current chip U4, the second constant current chip U4 is electrically connected with the MCU, the second blue light driving circuit is electrically connected with the MCU and the second LED blue light DX4 respectively, and the second LED blue light DX4 is electrically connected with the second constant current chip U4.
As shown in fig. 2, the first red light driving circuit drives a red light according to the LED light control signal sent by the MCU. The first red light driving circuit includes: the circuit comprises a resistor R3, a resistor R4, a photoelectric coupler U5 and an enhancement type field effect transistor Q1; the first constant current chip U3 includes a peripheral circuit including: inductor L1, resistor R8, Schottky diode DS1 and resistor R1; one end of a resistor R8 is electrically connected with a 19 th pin of the STC15W408AS-SOP20, the other end of the resistor R8 is electrically connected with a 3 rd pin of the first constant current chip U3, a link formed by the resistor R8 and the MCU and the first constant current chip U3 respectively is a channel for the MCU to send an LED lamp power control signal to the first constant current chip U3, the MCU sends the LED lamp power control signal to the first constant current chip U3 through the 19 th pin thereof so as to control the first constant current chip U3 to generate signals with different frequencies, one end of a resistor R3 is electrically connected with a 5 th pin of the MCU, the other end of the resistor R3 is electrically connected with a 2 nd pin of a photocoupler U5, a 1 st pin of the photocoupler U5 is connected with a 5V power supply, a 3 rd pin of the photocoupler U5 is grounded, a 4 th pin of the photocoupler U5 is electrically connected with one end of a resistor R4 and a gate of an enhanced field effect transistor Q1, and the other end of the resistor R68612V 12, the drain of the enhancement mode field effect transistor Q1 is electrically connected with the positive electrode of the first LED red light DX1, the source of the enhancement mode field effect transistor Q1 is electrically connected with the 4 th pin of the first constant current chip U3 and one end of the resistor R1 respectively, the negative electrode of the first LED red light DX1 is electrically connected with one end of the inductor L1, the other end of the inductor L1 is electrically connected with the 1 st pin of the first constant current chip U3 and the positive electrode of the Schottky diode DS1 respectively, the negative electrode of the Schottky diode DS1, the other end of the resistor R1 and the 5 th pin of the first constant current chip U3 are all connected with a 12V power supply, and the 2 nd pin of the first constant current chip U3 is grounded. When the 5 th pin of the STC15W408AS-SOP20 outputs a low level, the photoelectric coupler U5 is conducted, the photoelectric coupler U5 conducts the enhancement type field effect transistor Q1 and is in a closed state, and the first LED red lamp is lightened.
As shown in fig. 2, the first blue light driving circuit drives a blue light according to the LED light control signal sent by the MCU, and the first blue light driving circuit includes: the circuit comprises a resistor R5, a resistor R6, a photoelectric coupler U6 and an enhancement type field effect transistor Q2; one end of the resistor R5 is electrically connected with the 6 th pin of the MCU, the other end of the resistor R5 is electrically connected with the 2 nd pin of the photoelectric coupler U6, the 1 st pin of the photoelectric coupler U6 is connected with a 5V power supply, the 3 rd pin of the photoelectric coupler U6 is grounded, the 4 th pin of the photoelectric coupler U6 is electrically connected with one end of the resistor R6 and the grid of the enhanced field-effect tube Q2, the other end of the resistor R6 is connected with a 12V power supply, the drain of the enhanced field-effect tube Q2 is electrically connected with the anode of the first LED blue lamp DX2, the source of the enhanced field-effect tube Q2 is electrically connected with the 4 th pin of the first constant current chip U3 and one end of the resistor R1, and the cathode of the first LED blue lamp DX2 is electrically connected with one end of the inductor L1. When the 6 th pin of the STC15W408AS-SOP20 outputs a low level, the photoelectric coupler U6 is conducted, the photoelectric coupler U6 conducts the enhancement type field effect transistor Q2 and is in a closed state, and the first LED blue lamp is lightened.
As shown in fig. 3, the second red light driving circuit drives another red light according to the LED light control signal sent by the MCU. The second red light driving circuit includes: the circuit comprises a resistor R10, a resistor R12, a photoelectric coupler U8 and an enhancement type field effect transistor Q3; the second constant current chip U3 includes a peripheral circuit including: inductor L2, resistor R14, Schottky diode DS2 and resistor R2; one end of a resistor R14 is electrically connected with a 20 th pin of the STC15W408AS-SOP20, the other end of the resistor R14 is electrically connected with a 3 rd pin of the second constant current chip U4, a link formed by the resistor R14 and the MCU and the first constant current chip U4 respectively is a channel for the MCU to send an LED lamp power control signal to the second constant current chip U3, the MCU sends the LED lamp power control signal to the second constant current chip U4 through the 20 th pin thereof to control the second constant current chip U4 to generate signals with different frequencies, one end of a resistor R10 is electrically connected with a 9 th pin of the MCU, the other end of the resistor R10 is electrically connected with a 2 nd pin of a photocoupler U8, a 1 st pin of the photocoupler U8 is connected with a 5V power supply, a 3 rd pin of the photocoupler U8 is grounded, a 4 th pin of the photocoupler U8 is electrically connected with one end of a resistor R12 and a gate of an enhanced field effect transistor Q3, and the other end of the resistor R12 is electrically connected with, the drain of the enhancement mode field effect transistor Q3 is electrically connected with the anode of the second LED red light DX3, the source of the enhancement mode field effect transistor Q3 is electrically connected with the 4 th pin of the second constant current chip U4 and one end of the resistor R2, the cathode of the second LED red light DX3 is electrically connected with one end of the inductor L2, the other end of the inductor L2 is electrically connected with the 1 st pin of the second constant current chip U4 and the anode of the Schottky diode DS2, the cathode of the Schottky diode DS2, the other end of the resistor R2 and the 5 th pin of the second constant current chip U4 are all connected with a 12V power supply, and the 2 nd pin of the second constant current chip U4 is grounded. When the 9 th pin of the STC15W408AS-SOP20 outputs a low level, the photoelectric coupler U8 is conducted, the photoelectric coupler U8 conducts the enhancement type field effect transistor Q3 and is in a closed state, and the second LED red lamp is lightened.
As shown in fig. 3, the second blue light driving circuit drives another blue light according to the LED light control signal sent by the MCU, and the second blue light driving circuit includes: the circuit comprises a resistor R11, a resistor R13, a photoelectric coupler U9 and an enhancement type field effect transistor Q4; one end of the resistor R11 is electrically connected with a 13 th pin of the MCU, the other end of the resistor R11 is electrically connected with a 2 nd pin of the photoelectric coupler U9, a 1 st pin of the photoelectric coupler U9 is connected with a 5V power supply, a 3 rd pin of the photoelectric coupler U9 is grounded, a 4 th pin of the photoelectric coupler U9 is electrically connected with one end of the resistor R13 and a grid of the enhanced field-effect tube Q4, the other end of the resistor R13 is connected with a 12V power supply, a drain of the enhanced field-effect tube Q4 is electrically connected with an anode of the second LED blue lamp DX4, a source of the enhanced field-effect tube Q4 is electrically connected with a 4 th pin of the second constant current chip U4 and one end of the resistor R2, and a cathode of the second LED blue lamp DX4 is electrically connected with one end of the inductor L2. When the 13 th pin of the STC15W408AS-SOP20 outputs a low level, the photoelectric coupler U9 is conducted, the photoelectric coupler U9 conducts the enhancement type field effect transistor Q4 and is in a closed state, and the second LED blue lamp is lightened.
As shown in fig. 7, the key circuit selects different functions by pressing the key, and different modes of the function can be selected cyclically by pressing the same key for different times. The key circuit includes: a key S1, a key S2, a key S3, a key S4, a resistor R16, a resistor R17, a resistor R18 and a resistor R19; one end of the key S1, one end of the key S2, one end of the key S3 and one end of the key S4 are respectively and correspondingly electrically connected with one end of the resistor R16, one end of the resistor R17, one end of the resistor R18 and one end of the resistor R19, the other end of the key S1, the other end of the key S2, the other end of the key S3 and the other end of the key S4 are all grounded, and the other end of the resistor R16, the other end of the resistor R17, the other end of the resistor R18 and the other end of the resistor R19 are respectively and correspondingly and sequentially connected with 18 th to 15 th pins of STC15W408AS-SOP 20. The key S2 is a system start key, the system starts working by pressing the switch S2, and the light source mode is single red light when the system is started by default; the key S4 is a light source mode selection switch, the switch S4 is pressed, and only one mode is changed by pressing once regardless of the pressing time, the next time of pressing can be counted in an accumulated mode and automatically switched to a mode of circularly switching among five numerical values of ' 0 ', 1 ', 2 ', 3 and 4 ', wherein ' 0 ' represents single red light, ' 1 ' represents single blue light, ' 2 ' represents double red light, ' 3 ' represents double blue light, ' 4 ' represents blue-red light, and the counted number reaches ' 4 ', and the counted number is clear 0; the key S3 is a power selection key, the switch S1 is pressed, the power is changed only once by pressing once regardless of the pressing time, the next time of pressing can be accumulated and counted, the cyclic power mode of 3 gears of '6000, 12500 and 15000' is sent out in sequence, and the counted value is clear 0 after the system counts to '3'; the key S3 is a time setting key, the switch S3 is pressed, no matter how long the time is pressed, only one numerical value is added by single pressing, the mode of circularly switching between 60 numerical values of 00-59 is accumulated and counted by next pressing, the counting value is cleared by 0 after the system counts to 60, and the setting of the countdown working mode within 60 minutes is realized.
As shown in fig. 4, the display screen control circuit is a man-machine interaction control circuit. The display screen control circuit includes: an HT1621 type LCD driving chip U2 and a liquid crystal screen M1; the 9 th to 12 th pins of the HT1621 type LCD driving chip are electrically connected with the 1 st to 4 th pins of the STC15W408AS-SOP20 in sequence and one to one correspondence respectively, the 13 th pin of the HT1621 type LCD driving chip is grounded, and the 21 st to 24 th pins, the 8 th to 1 st pins, the 48 th to 43 th pins of the HT1621 type LCD driving chip and the 1 st to 13 th pins of the liquid crystal panel M1 in sequence and one to one correspondence respectively.
Example II,
On the basis of the first embodiment, as shown in fig. 5, the control system of the red and blue light therapeutic apparatus further includes a FAN control circuit for activating the FAN to dissipate heat of the circuit. The FAN control circuit includes: the device comprises a resistor R7, a resistor R26, a resistor R27, a fifth photoelectric coupler U7, an enhanced field effect transistor Q6 and a fan; one end of the resistor R7 is electrically connected with the 7 th pin of STC15W408AS-SOP20, the other end of the resistor R7 is electrically connected with the 2 nd pin of the fifth photoelectric coupler U7, the 1 st pin of the fifth photoelectric coupler U7 is electrically connected with a 5V power supply, the 4 th pin of the fifth photoelectric coupler U7 is connected with a 12V power supply, the 3 rd pin of the fifth photoelectric coupler U7 is electrically connected with one end of the resistor R26, the other end of the resistor R26 is respectively electrically connected with one end of the resistor R27 and the grid of the enhanced field effect transistor Q6, the drain of the enhanced field effect transistor Q6 is electrically connected with the fan, and the source of the enhanced field effect transistor Q6 is grounded.
Example III,
On the basis of the first or second embodiment, as shown in fig. 6, the red and blue light therapeutic apparatus control system further includes a beep control circuit for starting the buzzer, wherein the buzzer is started once when the key is pressed once, and the buzzer gives an alarm when the system fails. The Beep control circuit includes: the circuit comprises a resistor R21, a resistor R22, a triode Q5, a diode D1 and a buzzer LS 1; one end of a resistor R22 is electrically connected with the 14 th pin of STC15W408AS-SOP20, the other end of the resistor R22 is electrically connected with the base of a triode Q5, the collector of the triode Q5 is electrically connected with a 5V power supply, the emitter of a triode Q5 is electrically connected with the cathode of a diode D1 and one end of a buzzer LS1 respectively, the anode of a diode D1 is electrically connected with one end of the resistor R21 and one end of the buzzer LS1 respectively, and the other end of the resistor R21 is grounded.
Example four,
On the basis of the third embodiment, as shown in fig. 8 and 4, the red and blue light therapeutic apparatus control system further comprises: the first filter circuit, the second filter circuit and the third filter circuit are used for suppressing electromagnetic noise and improving power supply efficiency. And the first filter circuit is used for filtering the power supply when the HT1621 type LCD driving chip is connected with the power supply. The first filter circuit comprises a polar capacitor C1, a capacitor C2 and a capacitor C3, wherein the anode of the polar capacitor C1, the anode of the capacitor C2 and the anode of the capacitor C3 are respectively and electrically connected with a 5V power supply and the 16 th and 17 th pins of the HT1621 chip, and the cathode of the polar capacitor C1, the cathode of the capacitor C2 and the cathode of the capacitor C3 are all grounded. And the second filter circuit is used for carrying out filtering processing on the 5V power supply. The second filter circuit comprises a polar capacitor C4, a capacitor C5 and a capacitor C6, wherein the anode of the polar capacitor C4, the anode of the capacitor C5 and the anode of the capacitor C6 are respectively and electrically connected with a 5V power supply, and the cathode of the polar capacitor C4, the cathode of the capacitor C5 and the cathode of the capacitor C6 are all grounded. And the third filter circuit is used for carrying out filtering processing on the 12V power supply. The third filter circuit comprises a polar capacitor C7, a capacitor C8 and a capacitor C9, wherein the anode of the polar capacitor C7, the anode of the capacitor C8 and the anode of the capacitor C9 are respectively and electrically connected with a 12V power supply, and the cathode of the polar capacitor C4, the cathode of the capacitor C5 and the cathode of the capacitor C6 are all grounded. In the circuit of the first embodiment, the second embodiment or the third embodiment, when the 5V power supply or the 12V power supply is used, the power supply can be connected to the second filter circuit or the third filter circuit before the second filter circuit or the third filter circuit is electrically connected.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a red blue light therapeutic instrument control system, its includes MCU to and with MCU electric connection's 5V power and 12V power, its characterized in that: the PWM power control circuit also comprises a first PWM power control circuit and a second PWM power control circuit;
the first PWM power control circuit comprises a first red light drive circuit, a first blue light drive circuit, a first LED red light DX1, a first LED blue light DX2 and a first constant current chip U3 which ensures that the first LED red light DX1 and the first LED blue light DX2 output constant current;
the first red light driving circuit and the first blue light driving circuit are respectively electrically connected with the MCU, the first red light driving circuit is electrically connected with the first LED red light DX1, the first blue light driving circuit is electrically connected with the second LED blue light, the first LED red light DX1 and the first LED blue light DX2 are both electrically connected with the first constant current chip U3, and the first constant current chip U3 is electrically connected with the MCU;
the second PWM power control circuit comprises a second red light drive circuit, a second blue light drive circuit, a second LED red light, a second LED blue light and a second constant current chip U4 for ensuring the second LED red light and the second LED blue light to output constant current;
the second red light driving circuit and the second blue light driving circuit are respectively electrically connected with the MCU, the second red light driving circuit is electrically connected with the second LED red light DX3, the second blue light driving circuit is electrically connected with the second LED blue light DX4, the second LED red light DX3 and the second LED blue light DX4 are both electrically connected with the second constant current chip U4, and the second constant current chip U4 is electrically connected with the MCU.
2. The red and blue light therapeutic apparatus control system according to claim 1, wherein: the MCU is STC15W408AS-SOP20, and the models of the first constant current chip U3 and the second constant current chip U4 are MH 5016.
3. The red and blue light therapeutic apparatus control system according to claim 2, wherein: the first red light driving circuit includes: the circuit comprises a resistor R3, a resistor R4, a photoelectric coupler U5 and an enhancement type field effect transistor Q1;
the first constant current chip U3 includes a peripheral circuit including: inductor L1, resistor R8, Schottky diode DS1 and resistor R1;
one end of the resistor R8 is electrically connected with the 19 th pin of the STC15W408AS-SOP20, the other end of the resistor R8 is electrically connected with the 3 rd pin of the first constant current chip U3, one end of the resistor R3 is electrically connected with the 5 th pin of the MCU, the other end of the resistor R3 is electrically connected with the 2 nd pin of the photocoupler U5, the 1 st pin of the photocoupler U5 is connected with a 5V power supply, the 3 rd pin of the photocoupler U5 is grounded, the 4 th pin of the photocoupler U5 is electrically connected with one end of the resistor R4 and the gate of the enhanced field effect transistor Q1, the other end of the resistor R4 is connected with a 12V power supply, the drain of the enhanced field effect transistor Q1 is electrically connected with the anode of the first LED red light DX1, the source of the enhanced field effect transistor Q1 is electrically connected with the 4 th pin of the first constant current chip U3 and one end of the resistor R1, the cathode of the first LED red light DX 9 is electrically connected with one end of the L inductor DXL 2, and the anode of the Schottky diode DS 828653 are electrically connected with the other end of the first constant And in the neutral connection, the cathode of the Schottky diode, the other end of the resistor R1 and the 5 th pin of the first constant current chip U3 are all connected with a 12V power supply, and the 2 nd pin of the first constant current chip U3 is grounded.
4. The red and blue light therapeutic apparatus control system according to claim 3, wherein: the first blue light driving circuit includes: the circuit comprises a resistor R5, a resistor R6, a photoelectric coupler U6 and an enhancement type field effect transistor Q2;
one end of the resistor R5 is electrically connected with the 6 th pin of the MCU, the other end of the resistor R5 is electrically connected with the 2 nd pin of the photoelectric coupler U6, the 1 st pin of the photoelectric coupler U6 is connected with a 5V power supply, the 3 rd pin of the photoelectric coupler U6 is grounded, the 4 th pin of the photoelectric coupler U6 is electrically connected with one end of the resistor R6 and the gate of the enhanced field-effect tube Q2, the other end of the resistor R6 is connected with a 12V power supply, the drain of the enhanced field-effect tube Q2 is electrically connected with the anode of the first LED blue lamp DX2, the source of the enhanced field-effect tube Q2 is electrically connected with the 4 th pin of the first constant current chip U3 and one end of the resistor R1, and the cathode of the first LED blue lamp DX2 is electrically connected with one end of the inductor L1.
5. The red and blue light therapeutic apparatus control system according to claim 4, wherein: the connection relations between the components and the components of the first PWM power control circuit and the second PWM power control circuit are the same;
and the connection relations among the components of the first red light drive circuit, the second red light drive circuit, the first blue light drive circuit and the second blue light drive circuit are the same.
6. The red and blue light therapeutic apparatus control system according to claim 1 or 2, wherein: the display device further comprises a key circuit, a display screen control circuit, a beep control circuit and a FAN control circuit which are respectively and electrically connected with the MCU.
7. The red and blue light therapeutic apparatus control system according to claim 6, wherein: the display screen control circuit includes: an HT1621 type LCD driving chip U2 and a liquid crystal screen M1;
the 9 th to 12 th pins of the HT1621 type LCD driving chip are electrically connected with the 1 st to 4 th pins of the STC15W408AS-SOP20 in a one-to-one correspondence mode in sequence, the 13 th pin of the HT1621 type LCD driving chip is grounded, and the 21 st to 24 th pins, the 8 th to 1 st pins and the 48 th to 43 th pins of the HT1621 type LCD driving chip are electrically connected with the 1 st to 13 th pins of the liquid crystal panel M1 in a one-to-one correspondence mode in sequence.
8. The red and blue light therapeutic apparatus control system according to claim 6, wherein: the FAN control circuit includes: the device comprises a resistor R7, a resistor R26, a resistor R27, a fifth photoelectric coupler U7, an enhanced field effect transistor Q6 and a fan;
one end of the resistor R7 is electrically connected with the 7 th pin of STC15W408AS-SOP20, the other end of the resistor R7 is electrically connected with the 2 nd pin of the fifth photoelectric coupler U7, the 1 st pin of the fifth photoelectric coupler U7 is electrically connected with a 5V power supply, the 4 th pin of the fifth photoelectric coupler U7 is connected with a 12V power supply, the 3 rd pin of the fifth photoelectric coupler U7 is electrically connected with one end of the resistor R26, the other end of the resistor R26 is respectively electrically connected with one end of the resistor R27 and the grid of the enhanced field effect transistor Q6, the drain of the enhanced field effect transistor Q6 is electrically connected with the fan, and the source of the enhanced field effect transistor Q6 is grounded.
9. The red and blue light therapeutic apparatus control system according to claim 6, wherein: the beep control circuit comprises: the circuit comprises a resistor R21, a resistor R22, a triode Q5, a diode D1 and a buzzer LS 1;
one end of the resistor R22 is electrically connected with the 14 th pin of the STC15W408AS-SOP20, the other end of the resistor R22 is electrically connected with the base of the triode Q5, the emitter of the triode Q5 is electrically connected with the 5V power supply, the collector of the triode Q5 is electrically connected with the cathode of the diode D1 and one end of the buzzer LS1 respectively, the anode of the diode D1 is electrically connected with one end of the resistor R21 and one end of the buzzer LS1 respectively, and the other end of the resistor R21 is grounded.
10. The red and blue light therapeutic apparatus control system according to claim 6, wherein: the key circuit includes: a key S1, a key S2, a key S3, a key S4, a resistor R16, a resistor R17, a resistor R18 and a resistor R19;
one end of the key S1, one end of the key S2, one end of the key S3 and one end of the key S4 are respectively and sequentially and correspondingly electrically connected with one end of the resistor R16, one end of the resistor R17, one end of the resistor R18 and one end of the resistor R19, the other end of the key S1, the other end of the key S2, the other end of the key S3 and the other end of the key S4 are all grounded, and the other end of the resistor R16, the other end of the resistor R17, the other end of the resistor R18 and the other end of the resistor R19 are respectively and sequentially and correspondingly electrically connected with 18 th to 15 th pins of STC15W408AS-SOP 20.
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| CN201810976294.XA CN110856759A (en) | 2018-08-25 | 2018-08-25 | Red and blue light therapeutic instrument control system |
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| CN201810976294.XA CN110856759A (en) | 2018-08-25 | 2018-08-25 | Red and blue light therapeutic instrument control system |
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| CN114879555A (en) * | 2022-05-05 | 2022-08-09 | 广东药科大学 | Timing control circuit and medicine excitation instrument using same |
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Application publication date: 20200303 |