CN103929852A - LED lamp with light and color capable of being adjusted - Google Patents
LED lamp with light and color capable of being adjusted Download PDFInfo
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Abstract
An LED lamp with light and the color capable of being adjusted comprises a rectifying and filtering circuit, a constant-current control circuit, an LED light source and a PWM output module, wherein the rectifying and filtering circuit is used for rectifying and filtering an input alternating current to form a direct current; the constant-current control circuit is connected with the output end of the rectifying and filtering circuit and used for providing a constant current for LED lamp strings; the LED light source comprises at least two LED lamp strings, the colors of all the LED lamp strings are different and the LED lamp strings are connected in series, and each LED lamp string is connected with a switch circuit in parallel; the PWM output module is provided with a first signal output end and a plurality of second signal output ends, the first signal output end is connected with the constant-current control circuit so as to adjust the luminance of the LED light source, and each second signal output end is connected with one switch circuit so as to adjust the current flowing through the corresponding LED lamp string. According to the LED lamp, light adjustment and color adjustment of the LED lamp can be separated, the LED lamp is simple in circuit and easy to control, and the light and the color can be adjusted to be more fine and smooth.
Description
Technical field
The present invention relates to a kind of LED lamp, relate in particular to a kind of LED lamp of tunable optical toning.
Background technology
At present, LED light source is as green energy conservation light source, is subject to liking of vast light fixture manufacturer, uses the illuminating lamp of LED light source day by day universal, substituted gradually the conventional illuminating lamps such as fluorescent lamp.Along with the raising of people's living standard, aesthetic and life grade gets a promotion, and people are not content with the illumination of ordinary lamp and lantern gradually, have therefore occurred band the colorful one LED lamp.
Because the brightness of LED light source is almost directly proportional with its drive current, therefore conventionally adopt the method for adjusting LED lamp forward current to adjust brightness, method is simple, practical.What traditional LED lamp light regulating technology adopted is DC-DC change-over circuit, and complex circuit, efficiency is low, cost is high; The LED lamp of different color adopts mode in parallel to connect, and cannot realize electric current consistent, causes brightness irregularities, and cannot realize the separated of light modulation and toning, and color is fine and smooth not.
Summary of the invention
The present invention can not be separated with toning in order to solve the light modulation of existing LED lamp, and circuit is complicated, inefficient problem, and a kind of LED lamp that can light modulation toning is provided, and circuit is simple, low price, efficiency are high, and light modulation is with mix colours can be independent.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of LED lamp of tunable optical toning, include current rectifying and wave filtering circuit, constant-current control circuit, LED light source and PWM output module, wherein, described current rectifying and wave filtering circuit is for exporting direct current after the AC rectification filtering of input; Described constant-current control circuit is connected with the output of described current rectifying and wave filtering circuit, is used to described LED lamp string that constant electric current is provided; Described LED light source includes at least two LED lamp strings, and the color of each LED lamp string is different and be connected in series, and each LED lamp connection in series-parallel has a switching circuit; Described PWM output module has first signal output and a plurality of secondary signal output, first signal output is connected to regulate the brightness of described LED light source with constant-current control circuit, each secondary signal output and a switching circuit connect to regulate the electric current of its corresponding LED lamp string of flowing through.
Its further technical scheme is that described two LED lamp strings are two, are respectively low colour temperature LED lamp string and high color temperature LED lamp string.
Its further technical scheme is that described LED lamp string is three, is respectively red LED lamp string, green LED lamp string and blue led lamp string, and three LED lamp strings are for being connected in series; Described switching circuit is three, is respectively the first switching circuit, second switch circuit and the 3rd switching circuit; Described the first switching circuit, described second switch circuit and described the 3rd switching circuit are parallel to respectively the two ends of described red LED lamp string, described green LED lamp string and described blue led lamp string; The first signal output of described PWM output module and described constant-current control circuit are connected to regulate the brightness of described LED light source, and the first secondary signal output, the second secondary signal output and the 3rd secondary signal output connect to regulate with described the first switching circuit, described second switch circuit, described the 3rd switching circuit the electric current of its corresponding LED lamp string of flowing through respectively.
Its further technical scheme is, described the first switching circuit comprises a MOSFET and the first division module, the anodic bonding of the source electrode of a described MOSFET and described red LED lamp string, the drain electrode of a described MOSFET is connected with the negative electrode of described red LED lamp string, the grid of a described MOSFET is connected with described the first division module, and the first secondary signal output of described PWM output module is connected in described the first division module; Described second switch circuit comprises the 2nd MOSFET and the second division module, the anodic bonding of the source electrode of described the 2nd MOSFET and described green LED lamp string, the drain electrode of described the 2nd MOSFET is connected with the negative electrode of described green LED lamp string, the grid of described the 2nd MOSFET is connected with described the second division module, and the second secondary signal output of described PWM output module is connected in described the second division module; Described the 3rd switching circuit comprises the 3rd MOSFET and the 3rd division module, the anodic bonding of the source electrode of described the 3rd MOSFET and described blue led lamp string, the drain electrode of described the 3rd MOSFET is connected with the negative electrode of described blue led lamp string, the grid of described MOSFET is connected with described the 3rd division module, and the 3rd secondary signal output of described PWM output module is connected in described the 3rd division module.
Its further technical scheme is, described the first division module comprises the first resistance and the second resistance, described the first resistance and described the second resistance are connected in series, the free end of described the first resistance is connected with the source electrode of a described MOSFET, the free end of described the second resistance is connected with the first secondary signal output of described PWM output module, and the grid of a described MOSFET is connected in the link of described the first resistance and described the second resistance; Described the second division module comprises the 3rd resistance and the 4th resistance, described the 3rd resistance and described the 4th resistance are connected in series, the free end of described the 3rd resistance is connected with the source electrode of described the 2nd MOSFET, the free end of described the 4th resistance is connected with the second secondary signal output of described PWM output module, and the grid of described the 2nd MOSFET is connected in the link of described the 3rd resistance and described the 4th resistance; Described the 3rd division module comprises the 5th resistance and the 6th resistance, described the 5th resistance and described the 6th resistance are connected in series, the free end of described the 5th resistance is connected with the source electrode of the 3rd MOSFET, the free end of described the 6th resistance is connected with the 3rd secondary signal output of described PWM output module, and the grid of described the 3rd MOSFET is connected in the link of described the 5th resistance and described the 6th resistance.
Its further technical scheme is, described constant-current control circuit comprises constant current control chip, the first filter circuit and the second filter circuit, the input of described constant current control chip is connected with described the first filter circuit, described the first filter circuit is connected in the described first signal output of described PWM output module by a current-limiting resistance, the output of described constant current control chip is connected with described the second filter circuit, and described the second filter circuit is connected in described LED light source.
Its further technical scheme is that described constant current control chip is MP24893 cake core.
Its further technical scheme is, described the first filter circuit is comprised of a resistance and an inductance in parallel, and its one end is connected in the input of described constant current control chip, and the other end is connected with ground.
Its further technical scheme is, described the second filter circuit comprises an inductance and an electric capacity, the output of one end of described inductance and described constant current control chip, and its other end is connected in the negative electrode of described LED light source, and described electric capacity is in parallel with described LED light source.
Useful technique effect of the present invention is: the LED lamp of tunable optical toning provided by the invention, the LED lamp string of different colours is connected in series, use constant-current control circuit to provide constant output current for LED light source, by changing the duty of pwm pulse signal, recently control having of constant-current control circuit output current or nothing, thereby the make-and-break time of operating current on control LED light source, realize the light modulation of LED lamp, the LED lamp connection in series-parallel of each switching circuit and variant color realizes shunting, and with pwm pulse signal control switch circuit, thereby regulate the electric current on each LED lamp string, realize the toning of LED lamp, the LED lamp driver of this tunable optical toning is simple, can the light modulation of LED lamp is separated with toning, control simple, the light modulation toning of LED lamp is finer and smoother.
Accompanying drawing explanation
Fig. 1 is the structural representation of LED lamp one embodiment of tunable optical toning of the present invention.
Fig. 2 is the structural representation of another embodiment of LED lamp of tunable optical toning of the present invention.
Fig. 3 is the circuit diagram of constant-current dimming of the LED lamp of tunable optical shown in Fig. 2 toning.
Fig. 4 is the circuit diagram of toning of the LED lamp of tunable optical shown in Fig. 2 toning.
Embodiment
For making those of ordinary skill in the art more be expressly understood the object, technical solutions and advantages of the present invention, below in conjunction with drawings and Examples, the present invention is further elaborated.
Shown in figure 1, for one embodiment of the present of invention, in this embodiment, the LED lamp of this tunable optical toning includes current rectifying and wave filtering circuit 10a, constant-current control circuit 20a, LED light source 30a, the first switching circuit 40a, second switch circuit 50a and PWM output module 60a, wherein, LED lamp string 30a is composed in series by low colour temperature LED lamp string and high color temperature LED lamp string, can certainly be composed in series for the LED lamp string of other two kinds of different colours.
Current rectifying and wave filtering circuit 10a will export direct current after the AC rectification filtering of input, direct current provides constant electric current by constant-current control circuit 20a for LED light source 30a, the first switching circuit 40a and the connection in series-parallel of low colour temperature LED lamp, second switch circuit 50a and the connection in series-parallel of high color temperature LED lamp, the first signal output PWM_1c of PWM output module 60a is connected with constant-current control circuit 20a to export the electric current output that pwm pulse signal is controlled constant-current control circuit 20a, realizes the light modulation of LED light source 30a; The secondary signal output PWM_1b of PWM output module 60a is connected to export pwm pulse signal with the first switching circuit 40a and controls the first switching circuit 40a, thereby adjusts the electric current on low colour temperature LED lamp string, realizes the toning of low colour temperature LED lamp string; The secondary signal output PWM_1a of PWM output module 60a is connected to export pwm pulse signal with second switch circuit 50a and controls second switch circuit 50a, thereby adjusts the electric current on high color temperature LED lamp string, realizes the toning of high color temperature LED lamp string.The light modulation of LED light source 30a can be separated with toning, independent mutually, also can regulate simultaneously, controls convenient.
The adjustable pwm signal of PWM output module 60a output duty cycle, be used for regulating first signal output PWM_1c, the secondary signal output PWM_1b of PWM output module 60a and the magnitude of voltage of secondary signal output PWM_1a three-way output signal, this PWM output module 60a can adopt PWM chip able to programme or by chip microcontroller, also can adopt non-programmable PWM chip, such as chip SG3525, in practical application, can select flexibly as required the type of chip.By changing the duty of the first signal output PWM_1c output signal of PWM output module 60a, recently control whether output current of constant-current control circuit 20a, thereby control the operating time of LED light source 30a, thereby the brightness of adjusting LED lamp string, by regulating the secondary signal output PWM_1b of PWM output module 60a and the output signal duty of secondary signal output PWM_1a, recently control the switching time of the first switching circuit 40a and second switch circuit 50a, thereby control the size of current of its corresponding LED lamp string, thereby realize the color adaptation of low colour temperature LED lamp string and high color temperature LED lamp string.
As shown in Figure 2, Figure 3, Figure 4, for another one embodiment of the present invention, in this embodiment, the LED lamp of this tunable optical toning includes current rectifying and wave filtering circuit 10A, constant-current control circuit 20A, LED lamp string 30A, the first switching circuit 40A, second switch circuit 50A, the 3rd switching circuit 70A and PWM output module 60A, wherein, LED lamp string 30A is composed in series by red LED lamp string, green LED lamp string and blue led lamp string.
Current rectifying and wave filtering circuit 10A will export direct current after the AC rectification filtering of input, direct current provides constant electric current through constant-current control circuit 20A for LED lamp string 30A, the first switching circuit 40A and red LED lamp connection in series-parallel, second switch circuit 50A and green LED lamp connection in series-parallel, the 3rd switching circuit 70A and the connection in series-parallel of blue led lamp, the first signal output PWM_1C of PWM output module 60A is connected with constant-current control circuit 20A to export the electric current output that pwm pulse signal is controlled constant-current control circuit 20A, realizes the light modulation of LED light source 30A; The secondary signal output PWM_1B of PWM output module 60A is connected to export pwm pulse signal with the first switching circuit 40A and controls the first switching circuit 40A, thereby adjusts the electric current on red LED lamp string, realizes the toning of red LED lamp string; The secondary signal output PWM_1A of PWM output module 60A is connected to export pwm pulse signal with second switch circuit 50A and controls second switch circuit 50A, thereby adjust the electric current on green LED lamp string, realize the toning of green LED lamp string, the secondary signal output PWM_1D of PWM output module 60A is connected to export pwm pulse signal with the 3rd switching circuit 70A and controls the 3rd switching circuit 70A, thereby adjust the electric current on blue led lamp string, realize the toning of blue led lamp string.The light modulation of LED light source 30A can be separated with toning, independent mutually, also can regulate simultaneously, controls convenient.
The adjustable pwm signal of PWM output module 60A output duty cycle, be used for regulating the magnitude of voltage of first signal output PWM_1C, secondary signal output PWM_1B, secondary signal output PWM_1B and the secondary signal output PWM_D output signal of PWM output module 60A, in practical application, can select flexibly as required the type of chip.Duty by changing first signal output PWM_1C output signal is regulating constant flow control circuit 20A output current whether recently, thereby control the operating time of LED light source 30A, thereby the brightness of adjusting LED lamp string, by regulating the secondary signal output PWM_1B of PWM output module 60A, the duty of secondary signal output PWM_1C and secondary signal output PWM_1D output signal is recently controlled the first switching circuit 40A, the switching time of second switch circuit 50A and the 3rd switching circuit 70A, thereby realize red LED lamp string, the color adaptation of green LED lamp string and blue led lamp string, by three primary colors, according to different proportion, be mixed to form full-color LED lamp.
Wherein, current rectifying and wave filtering circuit 10A is for carrying out rectification to the input voltage of power supply, in certain embodiments, this current rectifying and wave filtering circuit 10A includes rectifier bridge stack DB1 and filter capacitor C1, the input of rectifier bridge stack BD1 connects power supply, its output one end ground connection, and the other end is connected in constant-current control circuit 20A, filter capacitor C1 is parallel to the output of rectifier bridge stack BD1, and filter action can be provided.This current rectifying and wave filtering circuit 10A can be applicable in the first embodiment.
Constant-current control circuit 20A comprises constant current control chip U2, the first filter circuit 21A and the second filter circuit 22A, the first signal output PWM_1C of PWM output module 60A is connected in the input DIM of constant current control chip U2 by current-limiting resistance R13, the output SW of constant current control chip U2 is connected in the anode of a sustained diode 5, the negative electrode of this sustained diode 5 is connected in the output of current rectifying and wave filtering circuit 10A, between the negative electrode of sustained diode 5 and the second filter circuit 22A, be connected with a current sense resistor R4, the power supply input pin IN of constant current control chip U2 is connected in the output of current rectifying and wave filtering circuit 10A, be used to constant current control chip U2 power supply, the current detecting pin RS of constant current control chip U2 is connected in the link of current sense resistor R4 and the second filter circuit 22A, supply current for detection of LED light source 30A, the grounding pin GND of constant current control chip U2 is connected with ground.
In certain embodiments, constant current control chip U2 selects MP24893 cake core.The first filter circuit 21A is composed in parallel by resistance R 11 and capacitor C 5, and its one end is connected in the input pin DIM of constant current control chip U2, and the other end is connected with ground, for the input signal of constant current control chip U2 provides filter action.The second filter circuit 22A includes an inductance L 2 and a capacitor C 4, and capacitor C 4 is in parallel with LED light source 30A, and inductance L 2 one end are connected in the negative electrode of LED light source 30A, and one end is connected in the output pin SW of constant current control chip U2, and for LED light source, 30A provides filter action.By adjusting the duty ratio of the first signal output PWM_1C output signal of PWM output module 60A, can adjust having or nothing of constant current control chip U2 output current, thereby change the operating time length of LED light source 30A, and size of current in LED light source 30A does not change, avoided the variation of spectral wavelength, there is higher light modulation precision to control, because impulse waveform can control to very high precision completely, even if, can there is not scintillation and heat dissipation problem in light modulation within a large range yet.
The first switching circuit 40A comprises MOSFET Q1A and the first division module 41A, the anodic bonding of the source electrode of MOSFET Q1A and red LED lamp string, the drain electrode of MOSFET Q1A is connected with the negative electrode of red LED lamp string, this first division module 41A comprises resistance R 1A and the resistance R 2A being connected in series, the grid of MOSFETQ1A is connected in the link of resistance R 1A and resistance R 2A, the free end of resistance R 1A is connected in the source electrode of MOSFET Q1A, and the free end of resistance R 2A is connected in the secondary signal output PWM_1B of PWM output module 60A; Second switch circuit comprises MOSFET Q1B and the second division module 51A, the anodic bonding of the source electrode of MOSFET Q1B and green LED lamp string, the drain electrode of MOSFET Q1B is connected with the negative electrode of green LED lamp string, this second division module 51A comprises resistance R 1B and the resistance R 2B being connected in series, the grid of MOSFET Q1B is connected in the link of resistance R 1B and resistance R 2B, the free end of resistance R 1B is connected in the source electrode of MOSFET Q1B, and the free end of resistance R 2B is connected in the secondary signal output PWM_1A of PWM output module 60A; The 3rd switching circuit comprises MOSFET Q1C and the 3rd division module 71A, the anodic bonding of the source electrode of MOSFET Q1C and blue led lamp string, the drain electrode of MOSFET Q1C is connected with the negative electrode of blue led lamp string, the 3rd division module 71A comprises resistance R 1C and the resistance R 2C being connected in series, the grid of MOSFET Q1C is connected in the link of resistance R 1C and resistance R 2C, the free end of resistance R 1C is connected in the source electrode of MOSFET Q1C, and the free end of resistance R 2C is connected in the secondary signal output PWM_1D of PWM output module 60A.By PWM output module 60A, control the duty of its secondary signal output PWM_1B, secondary signal output PWM_1A, secondary signal output PWM_1D output signal and recently control the switching time of MOSFET Q1A, MOSFET Q1B, MOSFETQ1C, thereby be the LED lamp string shunting in parallel with it, realize LED light source 30A toning.
In other some embodiment, LED lamp string can be the tandem compound of any different colours lamp string; The model of constant current control chip U2 and MOSFET, only as a preferred embodiment of the present invention, are not subject to any restriction in the present embodiment, can select the constant current control chip U2 of other models that can realize identical function or the switching device of other types.
The LED lamp of tunable optical toning provided by the invention, the LED lamp string of different colours is connected in series, adopt pwm control circuit to be used as pulsed constant current supply with coordinating of high-voltage linear constant-current driven chip, operating current on each LED lamp string is consistent, by adjusting pwm pulse duty, recently control having of constant-current control circuit output current or nothing, can realize the light modulation of LED lamp, adopt the LED lamp connection in series-parallel of each switching circuit and variant color to realize shunting, and with pwm pulse signal control switch circuit, realize the toning of LED lamp, the LED lamp driver of this tunable optical toning is simple, can the light modulation of LED lamp is separated with toning, control simple, power supply service efficiency is high, can realize the adjusting of full-color LED lamp.
The foregoing is only specific embodiments of the invention, but not the present invention is done to any pro forma restriction.Those skilled in the art can impose the various changes that are equal to and improvement on the basis of above-described embodiment, and the equivalent variations that other do within the scope of claim or modification, within all should falling into protection scope of the present invention.
Claims (9)
1. a LED lamp for tunable optical toning, is characterized in that, includes current rectifying and wave filtering circuit, constant-current control circuit, LED light source and PWM output module, wherein,
Described current rectifying and wave filtering circuit is for exporting direct current after the AC rectification filtering of input;
Described constant-current control circuit is connected with the output of described current rectifying and wave filtering circuit, is used to described LED lamp string that constant electric current is provided;
Described LED light source includes at least two LED lamp strings, and the color of each LED lamp string is different and be connected in series, and each LED lamp connection in series-parallel has a switching circuit;
Described PWM output module has first signal output and a plurality of secondary signal output, first signal output is connected to regulate the brightness of described LED light source with constant-current control circuit, each secondary signal output and a switching circuit connect to regulate the electric current of its corresponding LED lamp string of flowing through.
2. the LED lamp of tunable optical toning as claimed in claim 1, is characterized in that, described two LED lamp strings are two, are respectively low colour temperature LED lamp string and high color temperature LED lamp string.
3. the LED lamp of tunable optical toning as claimed in claim 1, is characterized in that, described LED lamp string is three, is respectively red LED lamp string, green LED lamp string and blue led lamp string, and three LED lamp strings are for being connected in series; Described switching circuit is three, is respectively the first switching circuit, second switch circuit and the 3rd switching circuit; Described the first switching circuit, described second switch circuit and described the 3rd switching circuit are parallel to respectively the two ends of described red LED lamp string, described green LED lamp string and described blue led lamp string; The first signal output of described PWM output module and described constant-current control circuit are connected to regulate the brightness of described LED light source, and the first secondary signal output, the second secondary signal output and the 3rd secondary signal output connect to regulate with described the first switching circuit, described second switch circuit, described the 3rd switching circuit the electric current of its corresponding LED lamp string of flowing through respectively.
4. the LED lamp that tunable optical as claimed in claim 3 is mixed colours, it is characterized in that, described the first switching circuit comprises a MOSFET and the first division module, the anodic bonding of the source electrode of a described MOSFET and described red LED lamp string, the drain electrode of a described MOSFET is connected with the negative electrode of described red LED lamp string, the grid of a described MOSFET is connected with described the first division module, and the first secondary signal output of described PWM output module is connected in described the first division module; Described second switch circuit comprises the 2nd MOSFET and the second division module, the anodic bonding of the source electrode of described the 2nd MOSFET and described green LED lamp string, the drain electrode of described the 2nd MOSFET is connected with the negative electrode of described green LED lamp string, the grid of described the 2nd MOSFET is connected with described the second division module, and the second secondary signal output of described PWM output module is connected in described the second division module; Described the 3rd switching circuit comprises the 3rd MOSFET and the 3rd division module, the anodic bonding of the source electrode of described the 3rd MOSFET and described blue led lamp string, the drain electrode of described the 3rd MOSFET is connected with the negative electrode of described blue led lamp string, the grid of described MOSFET is connected with described the 3rd division module, and the 3rd secondary signal output of described PWM output module is connected in described the 3rd division module.
5. the LED lamp that tunable optical as claimed in claim 4 is mixed colours, it is characterized in that, described the first division module comprises the first resistance and the second resistance, described the first resistance and described the second resistance are connected in series, the free end of described the first resistance is connected with the source electrode of a described MOSFET, the free end of described the second resistance is connected with the first secondary signal output of described PWM output module, and the grid of a described MOSFET is connected in the link of described the first resistance and described the second resistance; Described the second division module comprises the 3rd resistance and the 4th resistance, described the 3rd resistance and described the 4th resistance are connected in series, the free end of described the 3rd resistance is connected with the source electrode of described the 2nd MOSFET, the free end of described the 4th resistance is connected with the second secondary signal output of described PWM output module, and the grid of described the 2nd MOSFET is connected in the link of described the 3rd resistance and described the 4th resistance; Described the 3rd division module comprises the 5th resistance and the 6th resistance, described the 5th resistance and described the 6th resistance are connected in series, the free end of described the 5th resistance is connected with the source electrode of the 3rd MOSFET, the free end of described the 6th resistance is connected with the 3rd secondary signal output of described PWM output module, and the grid of described the 3rd MOSFET is connected in the link of described the 5th resistance and described the 6th resistance.
6. the LED lamp that tunable optical as claimed in claim 1 is mixed colours, it is characterized in that, described constant-current control circuit comprises constant current control chip, the first filter circuit and the second filter circuit, the input of described constant current control chip is connected with described the first filter circuit, described the first filter circuit is connected in the described first signal output of described PWM output module by a current-limiting resistance, the output of described constant current control chip is connected with described the second filter circuit, and described the second filter circuit is connected in described LED light source.
7. the LED lamp of tunable optical toning as claimed in claim 6, is characterized in that, described constant current control chip is MP24893 cake core.
8. the LED lamp of tunable optical toning as claimed in claim 6, is characterized in that, described the first filter circuit is comprised of a resistance and an inductance in parallel, and its one end is connected in the input of described constant current control chip, and the other end is connected with ground.
9. the LED lamp that tunable optical as claimed in claim 6 is mixed colours, it is characterized in that, described the second filter circuit comprises an inductance and an electric capacity, the output of one end of described inductance and described constant current control chip, its other end is connected in the negative electrode of described LED light source, and described electric capacity is in parallel with described LED light source.
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| CN105491761A (en) * | 2015-12-29 | 2016-04-13 | 生迪智慧科技有限公司 | LED lamp capable of adjusting color temperature and color temperature adjustment method for LED lamp |
| WO2016090550A1 (en) * | 2014-12-09 | 2016-06-16 | 深圳市聚作照明股份有限公司 | Led dimming and toning circuit and led lamp |
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| WO2020037807A1 (en) * | 2018-08-22 | 2020-02-27 | 惠州莫思特智照科技有限公司 | Dimmable illumination device and dimming circuit |
| CN112533329A (en) * | 2020-11-27 | 2021-03-19 | 珠海市圣昌电子有限公司 | Light and color temperature adjusting circuit of constant current power supply and overlapped PWM (pulse-width modulation) color temperature adjusting method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202132855U (en) * | 2011-07-05 | 2012-02-01 | 深圳市可多为太阳能技术有限公司 | Solar emergency lamp |
| CN202172516U (en) * | 2011-08-02 | 2012-03-21 | 北京同步科技有限公司 | Brightness and color temperature adjustable LED lamp |
| CN102469655A (en) * | 2010-11-11 | 2012-05-23 | 海洋王照明科技股份有限公司 | Light-emitting diode (LED) driving circuit |
| CN103096589A (en) * | 2013-01-04 | 2013-05-08 | 广州奥迪通用照明有限公司 | Alternating current (AC) light-emitting diode (LED) driving circuit with overvoltage protection and driving method |
| CN203301797U (en) * | 2013-03-13 | 2013-11-20 | 广东恒润光电有限公司 | Dimming and toning circuit of LED table lamp |
| CN203387720U (en) * | 2013-05-31 | 2014-01-08 | 江门市鸿海电子有限公司 | Driving power supply of colored LED lamps |
| CN203827566U (en) * | 2014-03-31 | 2014-09-10 | 深圳市九洲光电科技有限公司 | Light-and-color-adjustable LED lamp |
-
2014
- 2014-03-31 CN CN201410126694.3A patent/CN103929852A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102469655A (en) * | 2010-11-11 | 2012-05-23 | 海洋王照明科技股份有限公司 | Light-emitting diode (LED) driving circuit |
| CN202132855U (en) * | 2011-07-05 | 2012-02-01 | 深圳市可多为太阳能技术有限公司 | Solar emergency lamp |
| CN202172516U (en) * | 2011-08-02 | 2012-03-21 | 北京同步科技有限公司 | Brightness and color temperature adjustable LED lamp |
| CN103096589A (en) * | 2013-01-04 | 2013-05-08 | 广州奥迪通用照明有限公司 | Alternating current (AC) light-emitting diode (LED) driving circuit with overvoltage protection and driving method |
| CN203301797U (en) * | 2013-03-13 | 2013-11-20 | 广东恒润光电有限公司 | Dimming and toning circuit of LED table lamp |
| CN203387720U (en) * | 2013-05-31 | 2014-01-08 | 江门市鸿海电子有限公司 | Driving power supply of colored LED lamps |
| CN203827566U (en) * | 2014-03-31 | 2014-09-10 | 深圳市九洲光电科技有限公司 | Light-and-color-adjustable LED lamp |
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| CN112533329A (en) * | 2020-11-27 | 2021-03-19 | 珠海市圣昌电子有限公司 | Light and color temperature adjusting circuit of constant current power supply and overlapped PWM (pulse-width modulation) color temperature adjusting method |
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Application publication date: 20140716 |