CN103083823A - Infrared light emitting diode (LED) matrix therapeutic apparatus - Google Patents

Infrared light emitting diode (LED) matrix therapeutic apparatus Download PDF

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Publication number
CN103083823A
CN103083823A CN201210456431XA CN201210456431A CN103083823A CN 103083823 A CN103083823 A CN 103083823A CN 201210456431X A CN201210456431X A CN 201210456431XA CN 201210456431 A CN201210456431 A CN 201210456431A CN 103083823 A CN103083823 A CN 103083823A
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CN
China
Prior art keywords
module
output
connected
current
generation module
Prior art date
Application number
CN201210456431XA
Other languages
Chinese (zh)
Inventor
王兆进
Original Assignee
王兆进
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 王兆进 filed Critical 王兆进
Priority to CN201210456431XA priority Critical patent/CN103083823A/en
Publication of CN103083823A publication Critical patent/CN103083823A/en

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Abstract

The invention discloses infrared light emitting diode (LED) matrix therapeutic apparatus. A current generating end of a reference current generation module is connected with an amplifier input end which is arranged on an output current control module. An amplifier output end which is arranged on the output current control module is connected with a power source end of an LED matrix light string. A detection assembly comprises an output voltage detection module and an output current detection module. An input end I of the output voltage detection module and an input end I of the output current detection module are respectively connected with a power source end of the LED matrix light string, an input end II of the output voltage detection module and an input end II of the output current detection module are respectively connected with an output end of a reference voltage generation module and an output end of the reference current generation module. An output end of the output voltage detection module and an output end of the output current detection module are both connected with an input end of a control signal generation module. A signal output end of the control signal generation module is connected with a power source control end of the LED matrix light string.

Description

A kind of infrared LED matrix therapeutic instrument

Technical field

The present invention relates to a kind of infrared LED matrix therapeutic instrument.

Background technology

The one or more light sources of therapeutic instrument in the market so not only make structure complicate as luminous body, be difficult for carrying, and light source are more concentrated, can not effectively spread treatment.

Summary of the invention

The invention provides a kind of infrared LED matrix therapeutic instrument, not only volume is little for it, and is easy to carry, and can shine human body a plurality of positions, and therapeutic domain is wide.

the present invention has adopted following technical scheme: a kind of infrared LED matrix therapeutic instrument, it comprises LED matrix lamp string and LED matrix constant-current drive circuit, described LED matrix constant-current drive circuit comprises the reference voltage generation module, the reference current generation module, the output current control module, detection components and control signal generation module, the electric current of reference current generation module produces end and is connected with the amplifier in that the output current control module is provided with, the amplifier out that the output current control module is provided with is connected with the power end of LED matrix lamp string, described detection components comprises output voltage detection module and output electric current measure module, the input I of output voltage detection module is connected the input I and is connected with the power end of LED matrix lamp string with the output electric current measure module, the input II of output voltage detection module is connected the input II and is connected outfan with the reference current generation module with the outfan of reference voltage generation module respectively and is connected with the output electric current measure module, the outfan of output voltage detection module is connected outfan and all is connected with the input of control signal generation module with the output electric current measure module, the signal output part of control signal generation module is connected with the power control terminal of LED matrix lamp string.

Described control signal generation module is set to the pwm control signal generation module.

The present invention has following beneficial effect: the present invention adopts functional module to come LED matrix lamp string, send by LED matrix lamp string the infrared waves that is suitable for human body, not only volume is little, easy to carry, in all case use, also can use on automobile, and can shine human body a plurality of positions, therapeutic domain is wide.The present invention sets reference current value, and provide reference current to other module as the reference electric current; Utilize simultaneously the output current control module to amplify reference current, use amplifier to do the output of negative feedback stabling current, reach the purpose to infraluminescence pipe constant-current driving, when infrared luminous tube do not open a way or the situation of short circuit under, it is fixing that the output of electric current is that circuit is set; Utilize the current/voltage detection module to detect electric current and the voltage of each infraluminescence pipe in work process, compare according to feedback signal and with reference voltage, reference current, judging the infraluminescence pipe no is open circuit or short circuit, if there is the infraluminescence pipe open circuit or short circuit to occur, control the output of output current control module close current, if working properly, drive the pwm control signal generation module according to the size of value of feedback, export corresponding duty cycle clock signal, carrying out output current regulates, assurance is worked through outer luminous tube constant current, guarantees that emission wavelength is stable.

Description of drawings

Fig. 1 is structural representation of the present invention.

The specific embodiment

in Fig. 1, the invention provides a kind of infrared LED matrix therapeutic instrument, it comprises LED matrix lamp string and LED matrix constant-current drive circuit, described LED matrix constant-current drive circuit comprises the reference voltage generation module, the reference current generation module, the output current control module, detection components and control signal generation module, the reference voltage generation module is for generation of a reference voltage, and provide reference voltage to other module as reference voltage, reference current generation module: utilize an outer meeting resistance to set reference current value, and provide reference current to other module as the reference electric current, the electric current of reference current generation module produces end and is connected with the amplifier in that the output current control module is provided with, the amplifier out that the output current control module is provided with is connected with the power end of LED matrix lamp string, the amplifier that amplifies reference current is done the output of negative feedback stabling current, outfan is used for driving LED matrix lamp string, in the situation that open circuit or short circuit do not occur, the output of electric current is subject to outside grey scale signal and controls, described detection components comprises output voltage detection module and output electric current measure module, the input I of output voltage detection module is connected the input I and is connected with the power end of LED matrix lamp string with the output electric current measure module, the input II of output voltage detection module is connected the input II and is connected outfan with the reference current generation module with the outfan of reference voltage generation module respectively and is connected with the output electric current measure module, the outfan of output voltage detection module is connected outfan and all is connected with the input of control signal generation module with the output electric current measure module, the signal output part of control signal generation module is connected with the power control terminal of LED matrix lamp string, output voltage detection module and output electric current measure module are for detection of electric current and the voltage of each LED matrix lamp string, feed back the size of current of LED matrix lamp by control signal, simultaneously the electric current of all passages is compared, obtain minima, by output end voltage and electric current and reference voltage, reference current relatively, whether be open circuit or short circuit if judging LED matrix lamp string, if open circuit or short circuit all appear in all LED matrix lamp strings, control the output of output current control module close current, the control signal generation module is set to the pwm control signal generation module, pwm control signal generation module judgement minimum current value, if minimum current is excessive, the little clock signal of output duty cycle, otherwise the large clock signal of output duty cycle, and when opening external power tube, detect external inductive current, if inductive current is excessive, close external power tube.

The present invention sets reference current value, and provide reference current to other module as the reference electric current; Utilize simultaneously the output current control module to amplify reference current, use amplifier to do the output of negative feedback stabling current, reach the purpose to infraluminescence pipe constant-current driving, when infrared luminous tube do not open a way or the situation of short circuit under, it is fixing that the output of electric current is that circuit is set; Utilize the current/voltage detection module to detect electric current and the voltage of each infraluminescence pipe in work process, compare according to feedback signal and with reference voltage, reference current, judging the infraluminescence pipe no is open circuit or short circuit, if there is the infraluminescence pipe open circuit or short circuit to occur, control the output of output current control module close current, if working properly, drive the pwm control signal generation module according to the size of value of feedback, export corresponding duty cycle clock signal, carrying out output current regulates, assurance is worked through outer luminous tube constant current, guarantees that emission wavelength is stable.

Claims (2)

1. infrared LED matrix therapeutic instrument, it is characterized in that it comprises LED matrix lamp string and LED matrix constant-current drive circuit, described LED matrix constant-current drive circuit comprises the reference voltage generation module, the reference current generation module, the output current control module, detection components and control signal generation module, the electric current of reference current generation module produces end and is connected with the amplifier in that the output current control module is provided with, the amplifier out that the output current control module is provided with is connected with the power end of LED matrix lamp string, described detection components comprises output voltage detection module and output electric current measure module, the input I of output voltage detection module is connected the input I and is connected with the power end of LED matrix lamp string with the output electric current measure module, the input II of output voltage detection module is connected the input II and is connected outfan with the reference current generation module with the outfan of reference voltage generation module respectively and is connected with the output electric current measure module, the outfan of output voltage detection module is connected outfan and all is connected with the input of control signal generation module with the output electric current measure module, the signal output part of control signal generation module is connected with the power control terminal of LED matrix lamp string.
2. infrared LED matrix therapeutic instrument according to claim 1, is characterized in that described control signal generation module is set to the pwm control signal generation module.
CN201210456431XA 2012-11-14 2012-11-14 Infrared light emitting diode (LED) matrix therapeutic apparatus CN103083823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210456431XA CN103083823A (en) 2012-11-14 2012-11-14 Infrared light emitting diode (LED) matrix therapeutic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210456431XA CN103083823A (en) 2012-11-14 2012-11-14 Infrared light emitting diode (LED) matrix therapeutic apparatus

Publications (1)

Publication Number Publication Date
CN103083823A true CN103083823A (en) 2013-05-08

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CN201210456431XA CN103083823A (en) 2012-11-14 2012-11-14 Infrared light emitting diode (LED) matrix therapeutic apparatus

Country Status (1)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1240667A (en) * 1998-07-02 2000-01-12 周靖人 Infrared therapeutic apparatus
US20060287696A1 (en) * 2005-06-21 2006-12-21 Wright David W Heat and light therapy treatment device and method
CN2875490Y (en) * 2005-01-19 2007-03-07 苏柏衡 Radiation therapeutical apparatus
CN201563272U (en) * 2009-10-31 2010-08-25 比亚迪股份有限公司 LED dimming drive circuit
CN102186276A (en) * 2011-03-08 2011-09-14 天利半导体(深圳)有限公司 LED (light emitting diode) constant current driving circuit with current detection and LED backlight system
US20120274233A1 (en) * 2011-04-27 2012-11-01 Sequoia Microelectronics Corporation Constant current led driver
CN202909311U (en) * 2012-11-14 2013-05-01 王兆进 Infrared LED array therapeutic instrument

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1240667A (en) * 1998-07-02 2000-01-12 周靖人 Infrared therapeutic apparatus
CN2875490Y (en) * 2005-01-19 2007-03-07 苏柏衡 Radiation therapeutical apparatus
US20060287696A1 (en) * 2005-06-21 2006-12-21 Wright David W Heat and light therapy treatment device and method
CN201563272U (en) * 2009-10-31 2010-08-25 比亚迪股份有限公司 LED dimming drive circuit
CN102186276A (en) * 2011-03-08 2011-09-14 天利半导体(深圳)有限公司 LED (light emitting diode) constant current driving circuit with current detection and LED backlight system
US20120274233A1 (en) * 2011-04-27 2012-11-01 Sequoia Microelectronics Corporation Constant current led driver
CN202909311U (en) * 2012-11-14 2013-05-01 王兆进 Infrared LED array therapeutic instrument

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Application publication date: 20130508

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