CN105007647A - Driving method and circuit of intelligent control lighting appliance - Google Patents
Driving method and circuit of intelligent control lighting appliance Download PDFInfo
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a driving method and circuit of an intelligent control lighting appliance. Intelligent control of a lamp fixture is driven without using a driving IC chip, driving signals are directly output through the I/O port of a single-chip microcomputer for adjusting the conduction time of MOS tubes of voltage reduction circuits so as to realize control of current or voltage of a load, accordingly, the color temperature and the brightness of the lamp fixture are controlled, the adjustment precision is high, feedback signals are adjusted and fed back also through the single-chip microcomputer so as to realize stable output at a load end, the color temperature and the brightness of the lamp fixture can also be adjusted through a wireless control scheme, the circuit is simple, the cost is low, the size is small, the installation is convenient, and the application prospect is good.
Description
Technical field
The present invention relates to a kind of driving method and circuit of Based Intelligent Control ligthing paraphernalia, belong to illumination applied technical field.
Background technology
Along with the day by day maturation of LED illumination application technology, Based Intelligent Control ligthing paraphernalia is shown up prominently gradually at illuminating industry, the characteristic of LED light source itself plays incisively and vividly again by LED Based Intelligent Control ligthing paraphernalia, and user can by the luminance of the random controling appliance of remote controller.At present; on market the drive scheme of some LED Based Intelligent Control ligthing paraphernalias all by control section MCU chip to driving IC chip signal; thus make driving IC chip export corresponding PWM to regulate the metal-oxide-semiconductor ON time in drive circuit; realize the control to the curtage of loading section (light source portion); and realized stable output and the defencive function of drive circuit by the signal that drive circuit and load end feed back to driving IC chip, thus the performance safety of realizing circuit is stablized.But, there is certain defect in this kind of drive scheme, for example cost high, circuit bulky causing should not install in light fixture, be difficult to resolve certainly because circuit cabling relative complex causes the electromagnetic compatibility of circuit board to compare, it not is a desirable way that above phenomena all shows by the drive circuit that driving IC chip realizes, this kind realizes that PWM exports, and this kind scheme PWM ripple adjustable extent is narrow and precision is lower, the unification of light fixture light output efficiency.
Summary of the invention
The object of the invention is the drive scheme controlling luminaire in order to overcome traditional intelligence, cost is high, circuit bulky causing should not install in light fixture, electromagnetic compatibility compares to be difficult to resolve determines, and PWM ripple adjustable extent is narrow and precision is low, the problem of light fixture light output efficiency unification.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A driving method for Based Intelligent Control ligthing paraphernalia, is characterized in that: comprise the following steps,
Step (1), the drive singal that single-chip microcomputer IO port outputs to metal-oxide-semiconductor Q1 grid in the first reduction voltage circuit is P1, and in the second reduction voltage circuit, the drive singal of metal-oxide-semiconductor Q2 grid is P2, and drive singal P1, P2 are that two-way PWM ripple is formed by stacking;
Step (2), when single-chip microcomputer IO port output drive signal P1, P2 road wherein, if during output drive signal P1, regulate the duty ratio of two-way PWM ripple in drive singal P1, obtain the light modulation ratio of the first light source load, control the ON time of metal-oxide-semiconductor Q1, realize the brightness regulation to the first light source load; If during output drive signal P2, regulate the duty ratio of two-way PWM ripple in drive singal P2, obtain the light modulation ratio of secondary light source load, control the ON time of metal-oxide-semiconductor Q2, realize the brightness regulation to secondary light source load;
Step (3), output drive signal P1, P2 while single-chip microcomputer IO port, proportionate relationship is compared by regulating the light modulation of the light modulation of the first light source load ratio and secondary light source load, the colour temperature obtaining the first light source load to secondary light source load colour temperature between to mix colours ratio, the colour temperature realizing whole ligthing paraphernalia regulates.
The driving method of aforesaid Based Intelligent Control ligthing paraphernalia, is characterized in that: step (2) drive singal P1 is formed by stacking by two-way PWM ripple P11 and P12 is nested, and the duty ratio of drive singal P1 is P11 duty ratio × P12 duty ratio; Drive singal P2 is formed by stacking by two-way PWM ripple P21 and P22 is nested, and the duty ratio of drive singal P2 is P21 duty ratio × P22 duty ratio.
The driving method of aforesaid Based Intelligent Control ligthing paraphernalia, it is characterized in that: step (3) compares proportionate relationship by the light modulation ratio of adjustment first light source load and the light modulation of secondary light source load, the colour temperature obtaining the first light source load to secondary light source load colour temperature between toning ratio, obtain according to formula (1)
Based on the drive circuit of the driving method of above-mentioned Based Intelligent Control ligthing paraphernalia, it is characterized in that: comprise single-chip microcomputer, power circuit, first reduction voltage circuit, first light source load, second reduction voltage circuit and secondary light source load, the IO port of described single-chip microcomputer is connected with each road reduction voltage circuit respectively, the output of each reduction voltage circuit is connected with corresponding light source load respectively, the feedback output end of each reduction voltage circuit is connected with the feedback input end of single-chip microcomputer, described power circuit comprises circuit of power factor correction, the external civil power of input of described circuit of power factor correction, the output of described circuit of power factor correction is connected with the power input of each reduction voltage circuit.
The drive circuit of aforesaid a kind of Based Intelligent Control ligthing paraphernalia, is characterized in that: also comprise the remote controller signal receiving circuit be connected with single-chip microcomputer.
The drive circuit of aforesaid a kind of Based Intelligent Control ligthing paraphernalia, it is characterized in that: the first reduction voltage circuit comprises metal-oxide-semiconductor Q1, diode D1, inductance L 1, the grid of described metal-oxide-semiconductor Q1 is connected with corresponding single-chip microcomputer IO port, the drain electrode of described metal-oxide-semiconductor Q1 respectively with the positive pole of diode D1, one end of inductance L 1 is connected, the other end of described inductance L 1 and the output of described circuit of power factor correction form the feeder ear of light source load, polar capacitor C1 is also parallel with between the other end of described inductance L 1 and the output of described circuit of power factor correction, resistance R2, the negative pole of described diode D1 is connected with the output of described circuit of power factor correction with the positive pole of polar capacitor C1, the source electrode of described metal-oxide-semiconductor Q1 is also connected with resistance R1, and be connected with the feedback input end of single-chip microcomputer as the feedback output end of reduction voltage circuit.
The drive circuit of aforesaid a kind of Based Intelligent Control ligthing paraphernalia, it is characterized in that: the second reduction voltage circuit comprises metal-oxide-semiconductor Q2, diode D2, inductance L 2, the grid of described metal-oxide-semiconductor Q2 is connected with corresponding single-chip microcomputer IO port, the drain electrode of described metal-oxide-semiconductor Q2 respectively with the positive pole of diode D2, one end of inductance L 2 is connected, the other end of described inductance L 2 and the output of described circuit of power factor correction form the feeder ear of light source load, polar capacitor C2 is also parallel with between the other end of described inductance L 2 and the output of described circuit of power factor correction, resistance R4, the negative pole of described diode D1 is connected with the output of described circuit of power factor correction with the positive pole of polar capacitor C2, the source electrode of described metal-oxide-semiconductor Q2 is also connected with resistance R3, and be connected with the feedback input end of single-chip microcomputer as the feedback output end of reduction voltage circuit.
The invention has the beneficial effects as follows: the driving method of Based Intelligent Control ligthing paraphernalia of the present invention and circuit, do not adopt driving IC chip, adopt single-chip microcomputer in house software algorithm to realize light fixture Based Intelligent Control in conjunction with peripheral circuit, by the control that the direct output drive signal of I/O mouth of single-chip microcomputer realizes load current or voltage the adjustment of reduction voltage circuit metal-oxide-semiconductor ON time, thus the control realized light fixture colour temperature and brightness, degree of regulation is high, also by single-chip microcomputer feedback signal adjusted and feed back, thus realize the stable output of load end, light fixture colour temperature and brightness can also be regulated by controlled in wireless scheme, and circuit is simple, cost is low, volume is little, the variation of light fixture light output efficiency, be convenient to install, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the drive circuit of Based Intelligent Control ligthing paraphernalia of the present invention.
Fig. 2 is the circuit diagram of first, second reduction voltage circuit of the present invention.
Fig. 3 is the superposition PWM oscillogram of drive singal P1, P2 of the present invention.
Fig. 4 is the design sketch of light modulation of the present invention toning scheme one.
Fig. 5 is the design sketch of light modulation of the present invention toning scheme two.
Fig. 6 is the design sketch of light modulation of the present invention toning scheme three.
Embodiment
Below in conjunction with Figure of description, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The drive circuit of Based Intelligent Control ligthing paraphernalia of the present invention, do not adopt driving IC chip, adopt single-chip microcomputer in house software algorithm to realize light fixture Based Intelligent Control in conjunction with peripheral circuit, reduction voltage circuit metal-oxide-semiconductor ON time is adjusted to the control realized load current or voltage by the direct output drive signal of I/O port of single-chip microcomputer, thus the control realized light fixture colour temperature and brightness, degree of regulation is high, also by single-chip microcomputer feedback signal adjusted and feed back, thus realize the stable output of load end, light fixture colour temperature and brightness can also be regulated by controlled in wireless scheme, circuit is simple, cost is low, volume is little, be convenient to install, as shown in Figure 1, specifically comprise single-chip microcomputer, power circuit, first reduction voltage circuit, first light source load, second reduction voltage circuit and secondary light source load, the IO port of single-chip microcomputer is connected with each road reduction voltage circuit respectively, the output of each reduction voltage circuit is connected with corresponding light source load respectively, the feedback output end of each reduction voltage circuit is connected with the feedback input end of single-chip microcomputer, power circuit comprises circuit of power factor correction, the external civil power of input of circuit of power factor correction, the output of circuit of power factor correction is connected with the power input of each reduction voltage circuit, circuit of power factor correction can improve the power factor of civil power, the PWM ripple exported by the I/O mouth receiving single-chip microcomputer carries out to the metal-oxide-semiconductor of reduction voltage circuit inside the control that ON time adjustment realizes load current or voltage, thus the control realized light fixture colour temperature and brightness, and, output feedback signal is to single-chip microcomputer, single-chip microcomputer adjusts feedback signal and feeds back, thus realize the stable output of load end.
The drive circuit of Based Intelligent Control ligthing paraphernalia of the present invention also comprise the remote controller signal receiving circuit be connected with single-chip microcomputer, remote controller signal receiving circuit can receive the control signal of remote controller, send to single-chip microcomputer, the PWM ripple of the I/O mouth output of single-chip microcomputer, realizes the control to light fixture colour temperature and brightness.
As shown in Figure 2, first, the circuit of the second reduction voltage circuit is simple, with low cost, first reduction voltage circuit comprises metal-oxide-semiconductor Q1, diode D1, inductance L 1, the grid of metal-oxide-semiconductor Q1 is connected with the IO port of single-chip microcomputer, the drain electrode of metal-oxide-semiconductor Q1 respectively with the positive pole of diode D1, one end of inductance L 1 is connected, the other end of inductance L 1 and the output of described circuit of power factor correction form the feeder ear of light source load, polar capacitor C1 is also parallel with between the other end of inductance L 1 and the output of described circuit of power factor correction, resistance R2, the negative pole of diode D1 is connected with the output of described circuit of power factor correction with the positive pole of polar capacitor C1, the source electrode of metal-oxide-semiconductor Q1 is also connected with resistance R1, and be connected with the feedback input end of single-chip microcomputer as the feedback output end of reduction voltage circuit, second reduction voltage circuit comprises metal-oxide-semiconductor Q2, diode D2, inductance L 2, the grid of described metal-oxide-semiconductor Q2 is connected with corresponding single-chip microcomputer IO port, the drain electrode of described metal-oxide-semiconductor Q2 respectively with the positive pole of diode D2, one end of inductance L 2 is connected, the other end of described inductance L 2 and the output of described circuit of power factor correction form the feeder ear of light source load, polar capacitor C2 is also parallel with between the other end of described inductance L 2 and the output of described circuit of power factor correction, resistance R4, the negative pole of described diode D1 is connected with the output of described circuit of power factor correction with the positive pole of polar capacitor C2, the source electrode of described metal-oxide-semiconductor Q2 is also connected with resistance R3, and be connected with the feedback input end of single-chip microcomputer as the feedback output end of reduction voltage circuit, metal-oxide-semiconductor Q1, the PWM ripple of the IO port output of the direct external single-chip microcomputer of Q2, distinctive metal-oxide-semiconductor need not be selected, with low cost, easy realization, electromagnetic compatibility is easy to realize.
Based on the driving method of the drive circuit of above-mentioned Based Intelligent Control ligthing paraphernalia, realize lamp light-regulating toning function, specifically comprise the following steps,
Step (1), the drive singal that single-chip microcomputer IO port outputs to metal-oxide-semiconductor Q1 grid in the first reduction voltage circuit is P1, and in the second reduction voltage circuit, the drive singal of metal-oxide-semiconductor Q2 grid is P2, and drive singal P1, P2 are that two-way PWM ripple is formed by stacking;
Step (2), when single-chip microcomputer IO port output drive signal P1, P2 road wherein, if during output drive signal P1, regulate the duty ratio of two-way PWM ripple in drive singal P1, obtain the light modulation ratio of the first light source load, control the ON time of metal-oxide-semiconductor Q1, realize the brightness regulation to the first light source load, if during output drive signal P2, regulate the duty ratio of drive singal P2 two-way PWM ripple, obtain the light modulation ratio of secondary light source load, control the ON time of metal-oxide-semiconductor Q2, realize the brightness regulation to secondary light source load, as shown in Figure 3, drive singal P1 is formed by stacking by two-way PWM ripple P11 and P12 is nested, and the duty ratio of drive singal P1 is P11 duty ratio × P12 duty ratio, drive singal P2 is formed by stacking by two-way PWM ripple P21 and P22 is nested, the duty ratio of drive singal P2 is P21 duty ratio × P22 duty ratio, wherein PWM ripple duty ratio=T1/T0 × 100%, T1 is the high level lasting time in the one-period of PWM ripple, T0 is PWM wave period, drive singal P1, P2 adopts the superposition of two-way PWM ripple, by to each PWM ripple (P11, P12, P21, P22) frequency and the adjustment of duty ratio can realize colour temperature and brightness fine setting, this kind does not adopt driving IC chip and to adopt single-chip I/O mouth directly to export PWM ripple higher to the degree of regulation of the driving method of reduction voltage circuit metal-oxide-semiconductor grid, better effects if.
Step (3), output drive signal P1, P2 while single-chip microcomputer IO port, by regulate the light modulation of the first light source load than and the light modulation of secondary light source load than proportionate relationship, the colour temperature obtaining the first light source load according to formula (1) to secondary light source load colour temperature between mix colours and compare
The colour temperature realizing whole ligthing paraphernalia regulates.
According to above-mentioned driving method, assuming that the first light source load is warm colour, secondary light source load is cool colour, warm colour, and correlated colour temperature is lower than the colour temperature of 3300K; Cool colour, correlated colour temperature is higher than the colour temperature of 5300K; Neutral colour, the colour temperature of correlated colour temperature between 3300K ~ 5300K, attainable light modulation toning scheme is as follows,
As shown in Figure 4, light modulation toning scheme one, realize by the gradual change of warm colour to cool colour, also can be implemented in the brightness regulation between two kinds of colour temperatures, this scheme light fixture maximum power appears at middle colour temperature (colour temperature that when namely cool tone light ratio is equal with warm tones light ratio, light fixture is lighted), light fixture power under cool colour and the entirely bright state of warm colour is about 50% of maximum power, and the LED lamp bead quantity of warm color and cold color is identical;
As shown in Figure 5, light modulation toning scheme two, realize by the gradual change of warm colour to cool colour, also can be implemented in the brightness regulation of colour temperature between two colour temperatures, light fixture maximum power appears at cool colour, light fixture power under the state that warm colour is entirely bright is about 50% of maximum power, and the LED lamp bead quantity of this programme warm colour is 50% of the LED lamp bead quantity of cool colour, and the lamp pearl quantitative proportion of this scheme can be determined according to embody rule;
As shown in Figure 6, light modulation toning scheme three, realizes, by the gradual change of warm colour to cool colour, also can be implemented in the brightness regulation of colour temperature between two colour temperatures, power under the complete bright state of each colour temperature is light fixture maximum power, and the LED lamp bead quantity of the warm color and cold color of this scheme is identical.More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (7)
1. a driving method for Based Intelligent Control ligthing paraphernalia, is characterized in that: comprise the following steps,
Step (1), the drive singal that single-chip microcomputer IO port outputs to metal-oxide-semiconductor Q1 grid in the first reduction voltage circuit is P1, and in the second reduction voltage circuit, the drive singal of metal-oxide-semiconductor Q2 grid is P2, and drive singal P1, P2 are that two-way PWM ripple is formed by stacking;
Step (2), when single-chip microcomputer IO port output drive signal P1, P2 road wherein, if during output drive signal P1, regulate the duty ratio of two-way PWM ripple in drive singal P1, obtain the light modulation ratio of the first light source load, control the ON time of metal-oxide-semiconductor Q1, realize the brightness regulation to the first light source load; If during output drive signal P2, regulate the duty ratio of two-way PWM ripple in drive singal P2, obtain the light modulation ratio of secondary light source load, control the ON time of metal-oxide-semiconductor Q2, realize the brightness regulation to secondary light source load;
Step (3), output drive signal P1, P2 while single-chip microcomputer IO port, proportionate relationship is compared by regulating the light modulation of the light modulation of the first light source load ratio and secondary light source load, the colour temperature obtaining the first light source load to secondary light source load colour temperature between to mix colours ratio, the colour temperature realizing whole ligthing paraphernalia regulates.
2. the driving method of Based Intelligent Control ligthing paraphernalia according to claim 1, is characterized in that: step (2) drive singal P1 is formed by stacking by two-way PWM ripple P11 and P12 is nested, and the duty ratio of drive singal P1 is P11 duty ratio × P12 duty ratio; Drive singal P2 is formed by stacking by two-way PWM ripple P21 and P22 is nested, and the duty ratio of drive singal P2 is P21 duty ratio × P22 duty ratio.
3. the driving method of Based Intelligent Control ligthing paraphernalia according to claim 1, it is characterized in that: step (3) compares proportionate relationship by the light modulation ratio of adjustment first light source load and the light modulation of secondary light source load, the colour temperature obtaining the first light source load to secondary light source load colour temperature between toning ratio, obtain according to formula (1)
4. based on the drive circuit of the driving method of Based Intelligent Control ligthing paraphernalia according to claim 1, it is characterized in that: comprise single-chip microcomputer, power circuit, first reduction voltage circuit, first light source load, second reduction voltage circuit and secondary light source load, the IO port of described single-chip microcomputer is connected with each road reduction voltage circuit respectively, the output of each reduction voltage circuit is connected with corresponding light source load respectively, the feedback output end of each reduction voltage circuit is connected with the feedback input end of single-chip microcomputer, described power circuit comprises circuit of power factor correction, the external civil power of input of described circuit of power factor correction, the output of described circuit of power factor correction is connected with the power input of each reduction voltage circuit.
5. the drive circuit of a kind of Based Intelligent Control ligthing paraphernalia according to claim 4, is characterized in that: also comprise the remote controller signal receiving circuit be connected with single-chip microcomputer.
6. the drive circuit of a kind of Based Intelligent Control ligthing paraphernalia according to claim 4, it is characterized in that: the first reduction voltage circuit comprises metal-oxide-semiconductor Q1, diode D1, inductance L 1, the grid of described metal-oxide-semiconductor Q1 is connected with corresponding single-chip microcomputer IO port, the drain electrode of described metal-oxide-semiconductor Q1 respectively with the positive pole of diode D1, one end of inductance L 1 is connected, the other end of described inductance L 1 and the output of described circuit of power factor correction form the feeder ear of light source load, polar capacitor C1 is also parallel with between the other end of described inductance L 1 and the output of described circuit of power factor correction, resistance R2, the negative pole of described diode D1 is connected with the output of described circuit of power factor correction with the positive pole of polar capacitor C1, the source electrode of described metal-oxide-semiconductor Q1 is also connected with resistance R1, and be connected with the feedback input end of single-chip microcomputer as the feedback output end of reduction voltage circuit.
7. the drive circuit of a kind of Based Intelligent Control ligthing paraphernalia according to claim 4, it is characterized in that: the second reduction voltage circuit comprises metal-oxide-semiconductor Q2, diode D2, inductance L 2, the grid of described metal-oxide-semiconductor Q2 is connected with corresponding single-chip microcomputer IO port, the drain electrode of described metal-oxide-semiconductor Q2 respectively with the positive pole of diode D2, one end of inductance L 2 is connected, the other end of described inductance L 2 and the output of described circuit of power factor correction form the feeder ear of light source load, polar capacitor C2 is also parallel with between the other end of described inductance L 2 and the output of described circuit of power factor correction, resistance R4, the negative pole of described diode D1 is connected with the output of described circuit of power factor correction with the positive pole of polar capacitor C2, the source electrode of described metal-oxide-semiconductor Q2 is also connected with resistance R3, and be connected with the feedback input end of single-chip microcomputer as the feedback output end of reduction voltage circuit.
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| CN114585127A (en) * | 2020-11-30 | 2022-06-03 | 松下电气机器（北京）有限公司 | Control circuit for LED lighting device |
| CN114585127B (en) * | 2020-11-30 | 2023-11-24 | 松下电气机器（北京）有限公司 | Control circuit for LED lighting device |
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Application publication date: 20151028 |