TWM471728U - Color temperature adjustable LED lighting device - Google Patents
Color temperature adjustable LED lighting device Download PDFInfo
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Description
本創作係有關於一種發光二極體照明裝置,其尤指一種可調色溫之發光二極體照明裝置。 The present invention relates to a light-emitting diode lighting device, and more particularly to a light-emitting diode lighting device capable of color temperature.
發光二極體(Light-Emitting Diode,LED)是一種能發光的半導體電子元件,透過三價與五價元素所組成的複合光源。此種電子元件早在1962年出現,早期只能夠發出低光度的紅光,及後則發展出其他單色光,時至今日,能夠發出的光已經遍及可見光、紅外線及紫外線,光度亦提高到相當高的程度。用途由初時的指示燈及顯示板等;隨著白光發光二極體的出現,近年逐漸發展至被普遍用作照明用途。 A Light-Emitting Diode (LED) is a light-emitting semiconductor electronic component that transmits a composite light source composed of trivalent and pentavalent elements. This kind of electronic component appeared as early as 1962. In the early days, it only emitted low-light red light, and then developed other monochromatic light. Today, the light that can be emitted has spread all over visible light, infrared light and ultraviolet light, and the luminosity is also improved. Quite a high degree. The use of the initial indicator lights and display panels; with the emergence of white light emitting diodes, in recent years has gradually developed to be widely used for lighting purposes.
發光二極體只能夠往一個方向導通,叫作正向偏置,當電流流過時,電子與電洞在其內重合而發出單色光,這叫電致發光效應,而光線的波長、顏色跟其所採用的半導體物料種類與故意滲入的元素雜質有關。具有效率高、壽命長、不易破損、反應速度快、可靠性高等傳統光源不及的優點。發光二極體照明裝置的發光效率近年有所進步;每千流明成本,也因為大量的資金投入使價格下降,使得近年來傳統白熾燈泡與日光燈已有漸漸被取代的趨勢。 The light-emitting diode can only be turned on in one direction, which is called forward bias. When current flows, the electron and the hole overlap in it to emit monochromatic light. This is called electroluminescence effect, and the wavelength and color of the light. The type of semiconductor material used is related to the elemental impurities that are intentionally infiltrated. It has the advantages of high efficiency, long life, not easy to break, fast response, high reliability and other traditional light sources. The luminous efficiency of the light-emitting diode lighting device has improved in recent years; the cost per thousand lumens, and the price drop due to a large amount of capital investment, has led to the trend that traditional incandescent light bulbs and fluorescent lamps have gradually been replaced in recent years.
然而,現行許多發光二極體照明裝置僅具有一固定色溫的光源輸 出,而此光源的色溫取決於設置在照明裝置上的發光二極體,所以若需更換此光源的色溫必須更換此發光二極體,並無法於使用中隨時切換發光二極體照明裝置提供不同色溫的光源,因此,現行發光二極體照明裝置仍有相當大的改進空間。 However, many current LED lighting devices only have a fixed color temperature source. The color temperature of the light source depends on the light-emitting diode disposed on the lighting device. Therefore, if the color temperature of the light source needs to be replaced, the light-emitting diode must be replaced, and the light-emitting diode lighting device cannot be switched at any time during use. Light sources of different color temperatures, therefore, there is still considerable room for improvement in current light-emitting diode lighting devices.
因此,本創作針對上述問題提供了一種依據電源開關導通次數的不同,而調整發光二極體產生各種色溫的光源之可調色溫之發光二極體照明裝置。 Therefore, in order to solve the above problems, the present invention provides a luminescent temperature LED illuminating device that adjusts the luminescent temperature of a light source that generates various color temperatures according to the difference in the number of times the power switch is turned on.
本創作之一目的,係提供一種可調色溫之發光二極體照明裝置,依據電源開關的導通次數,而致能具有不同色溫之複數發光二極體單元之一,使發光二極體照明裝置產生對應電源開關之導通次數之各種色溫值的照明光源。 One of the purposes of the present invention is to provide a color-modulating LED lighting device capable of enabling one of a plurality of light-emitting diode units having different color temperatures according to the number of times the power switch is turned on, so that the light-emitting diode lighting device An illumination source that produces various color temperature values corresponding to the number of times the power switch is turned on.
本創作之一目的,係提供一種可調色溫之發光二極體照明裝置,依據電源開關的導通次數,致能具有不同色溫之複數發光二極體單元,使該些發光二極體單元產生之不同色溫值的光源互相混和,使發光二極體照明裝置產生對應電源開關之導通次數之各種色溫值的照明光源。 One of the purposes of the present invention is to provide a color-modulating LED lighting device capable of enabling a plurality of light-emitting diode units having different color temperatures according to the number of times the power switch is turned on, so that the light-emitting diode units are generated. Light sources of different color temperature values are mixed with each other, so that the light-emitting diode lighting device generates illumination light sources of various color temperature values corresponding to the number of times the power switch is turned on.
本創作之一目的,係提供一種可調色溫之發光二極體照明裝置,藉由一脈波寬度調變器調整驅動訊號之佔空比,以調整一發光二極體單元之導通時間,進而調整發光二極體單元之亮度與色溫值。 One of the purposes of the present invention is to provide a color illuminating LED illuminating device, which adjusts the duty ratio of a driving signal by a pulse width modulator to adjust the conduction time of a light emitting diode unit, thereby Adjust the brightness and color temperature values of the LED unit.
本創作之一目的,係提供一種可調色溫之發光二極體照明裝置,藉由至少一脈波寬度調變器調整驅動訊號之佔空比,以調整複數 發光二極體單元之導通時間,進而調整該些發光二極體單元之亮度與色溫值後再加以混和,以使可混和而成的照明光源之色溫值更為多變。 One of the purposes of the present invention is to provide a color-modulating LED lighting device, wherein the duty ratio of the driving signal is adjusted by at least one pulse width modulator to adjust the complex number The on-time of the light-emitting diode unit is adjusted, and then the brightness and color temperature values of the light-emitting diode units are adjusted and then mixed, so that the color temperature value of the illuminable light source can be more varied.
為了達到上述所指稱之各目的與功效,本創作係揭示了一種可調色溫之發光二極體照明裝置,其包含:一發光二極體模組,用以產生一照明光源,照明光源具有一色溫值;以及一驅動電路,接收一輸入電源,並依據輸入電源產生至少一驅動訊號,驅動訊號用以驅動發光二極體模組產生照明光源,驅動電路調整驅動訊號而調整照明光源之色溫值。 In order to achieve the above-mentioned various purposes and effects, the present invention discloses a color-adjustable light-emitting diode lighting device, comprising: a light-emitting diode module for generating an illumination source, the illumination source having a a color temperature value; and a driving circuit, receiving an input power source, and generating at least one driving signal according to the input power source, the driving signal is used to drive the LED module to generate an illumination source, and the driving circuit adjusts the driving signal to adjust the color temperature value of the illumination source .
10‧‧‧發光二極體模組 10‧‧‧Lighting diode module
101‧‧‧發光二極體單元 101‧‧‧Lighting diode unit
102‧‧‧發光二極體單元 102‧‧‧Lighting diode unit
103‧‧‧開關單元 103‧‧‧Switch unit
104‧‧‧開關單元 104‧‧‧Switch unit
30‧‧‧驅動電路 30‧‧‧Drive circuit
301‧‧‧穩壓單元 301‧‧‧Stabilizer
302‧‧‧偵測單元 302‧‧‧Detection unit
303‧‧‧控制電路 303‧‧‧Control circuit
3031‧‧‧控制單元 3031‧‧‧Control unit
3032‧‧‧脈波寬度調變器 3032‧‧‧ Pulse width modulator
3033‧‧‧反相器 3033‧‧‧Inverter
3034‧‧‧脈波寬度調變器 3034‧‧‧ Pulse width modulator
50‧‧‧電源開關 50‧‧‧Power switch
CI‧‧‧控制指令 CI‧‧‧Control Instructions
CTA‧‧‧色溫調整訊號 CTA‧‧‧ color temperature adjustment signal
CTA1‧‧‧色溫調整訊號 CTA1‧‧‧ color temperature adjustment signal
CTA2‧‧‧色溫調整訊號 CTA2‧‧‧ color temperature adjustment signal
DS‧‧‧偵測訊號 DS‧‧‧Detection signal
DR‧‧‧驅動訊號 DR‧‧‧ drive signal
DR1‧‧‧驅動訊號 DR1‧‧‧ drive signal
DR2‧‧‧驅動訊號 DR2‧‧‧ drive signal
VIN‧‧‧輸入電源 V IN ‧‧‧Input power supply
VDD‧‧‧供應電源 V DD ‧‧‧Power supply
T1‧‧‧時間 T 1 ‧ ‧ hours
T2‧‧‧時間 T 2 ‧ ‧ hours
T3‧‧‧時間 T 3 ‧ ‧ hours
TR‧‧‧重置時間 T R ‧‧‧Reset time
第1圖:其係為本創作之可調色溫之發光二極體照明裝置的方塊圖;第2圖:其係為本創作之第一實施例之可調色溫之發光二極體照明裝置的電路方塊圖;第3圖:其係為本創作之第一實施例之可調色溫之發光二極體照明裝置的操作示意圖;第4圖:其係為本創作之第二實施例之可調色溫之發光二極體照明裝置的電路方塊圖;第5圖:其係為本創作之第二實施例之可調色溫之發光二極體照明裝置的操作示意圖;第6圖:其係為本創作之第三實施例之可調色溫之發光二極體照明裝置的電路方塊圖;第7圖:其係為本創作之第三實施例之可調色溫之發光二極體照明裝置的操作示意圖; 第8圖:其係為本創作之第四實施例之可調色溫之發光二極體照明裝置的電路方塊圖;以及第9圖:其係為本創作之第四實施例之可調色溫之發光二極體照明裝置的操作示意圖。 Figure 1 is a block diagram of the illuminating light-emitting diode illuminating device of the present invention; Fig. 2 is a condensable temperature LED lighting device of the first embodiment of the present invention. Circuit block diagram; FIG. 3 is a schematic diagram of the operation of the color tunable light-emitting diode lighting device of the first embodiment of the present invention; FIG. 4 is an adjustable view of the second embodiment of the present invention Circuit block diagram of a color temperature LED illuminating device; Fig. 5 is a schematic view showing the operation of the color tunable LED illuminating device of the second embodiment of the present invention; Fig. 6: A circuit block diagram of a color-developable light-emitting diode lighting device according to a third embodiment of the present invention; FIG. 7 is a schematic view showing the operation of the color-developable light-emitting diode lighting device of the third embodiment of the present invention. ; Figure 8 is a circuit block diagram of a color tunable LED lighting device of a fourth embodiment of the present invention; and Figure 9 is a color gradable temperature of the fourth embodiment of the present invention. Schematic diagram of the operation of the light-emitting diode lighting device.
為使 貴審查委員對本創作之特徵及所達成之功效有更進一步之瞭解與認識,謹佐以較佳之實施例及配合詳細之說明,說明如後:首先,請參閱第1圖,其係為本創作之可調色溫之發光二極體照明裝置的方塊圖。如圖所示,本創作之可調色溫之發光二極體照明裝置包含一發光二極體模組10與一驅動電路30。發光二極體模組10可包含至少一個發光二極體單元,發光二極體模組10用以產生一照明光源,照明光源具有一色溫值。驅動電路30耦接一輸入電源VIN,並依據輸入電源VIN產生至少一驅動訊號DR,驅動訊號DR用以驅動發光二極體模組10產生照明光源,驅動電路30依據輸入電源VIN調整驅動訊號DR進而調整發光二極體模組10產生之照明光源的色溫值。此外,本創作更可包含一電源開關50,耦接於輸入電源VIN與驅動電路30之間,其用以表示發光二極體照明裝置之切換開關,並依據使用者之一控制指令而導通(ON)或關閉(OFF),以傳送輸入電源VIN至驅動電路30。 In order to give your reviewers a better understanding and understanding of the characteristics of the creation and the efficacies achieved, please refer to the preferred embodiment and the detailed description as follows: First, please refer to Figure 1, which is A block diagram of the color-developable light-emitting diode lighting device of the present invention. As shown in the figure, the color-modulated LED lighting device of the present invention comprises a light-emitting diode module 10 and a driving circuit 30. The LED module 10 can include at least one LED unit. The LED module 10 is used to generate an illumination source having a color temperature value. The driving circuit 30 is coupled to an input power source V IN and generates at least one driving signal DR according to the input power source V IN . The driving signal DR is used to drive the LED module 10 to generate an illumination source, and the driving circuit 30 is adjusted according to the input power source V IN . The driving signal DR further adjusts the color temperature value of the illumination source generated by the LED module 10. In addition, the present invention may further include a power switch 50 coupled between the input power source V IN and the driving circuit 30 for indicating the switching switch of the LED lighting device, and is turned on according to one of the user control commands. (ON) or OFF (OFF) to transfer the input power source V IN to the drive circuit 30.
請參閱第2圖,其係為本創作之第一實施例之可調色溫之發光二極體照明裝置的電路方塊圖。如圖所示,驅動電路30包含一穩壓單元301、一偵測單元302與一控制電路303。穩壓單元301可為一逆變器,其經由電源開關50而接收輸入電源VIN,並穩壓輸入電源 VIN而產生一供應電源VDD,以提供發光二極體模組10產生照明光源所需之電源。偵測單元302接收輸入電源VIN與供應電源VDD,其用以偵測輸入電源VIN之電壓準位,並依據輸入電源VIN之電壓準位輸出對應之一偵測訊號DS。例如當電源開關50開啟時,偵測單元302偵測得到輸入電源VIN,當電源開關50關閉時,偵測單元302則偵測不到輸入電源VIN。 Please refer to FIG. 2, which is a circuit block diagram of a color-correctable light-emitting diode lighting device according to a first embodiment of the present invention. As shown, the driving circuit 30 includes a voltage stabilizing unit 301, a detecting unit 302 and a control circuit 303. The voltage stabilizing unit 301 can be an inverter that receives the input power V IN via the power switch 50 and stabilizes the input power V IN to generate a power supply V DD to provide the light emitting diode module 10 to generate an illumination source. The power supply required. Power detecting unit 302 receives an input V IN and the power supply V DD, which is used to detect the input voltage V IN of the power level, and according to the input voltage source V IN corresponding to one level of the output of the detection signal DS. For example, when the power switch 50 is turned on, the detecting unit 302 detects the input power V IN , and when the power switch 50 is turned off, the detecting unit 302 does not detect the input power V IN .
於此實施例中控制電路303包含一控制單元3031與一脈波寬度調變器3032。控制單元3031接收供應電源VDD與偵測訊號DS,供應電源VDD用以提供控制單元3031運作所需之電源,且控制單元3031依據偵測訊號DS得知此時電源開關50是否為導通,並依據供應電源VDD得知電源開關50是否為連續導通而計數電源開關50之導通次數,而產生對應電源開關50導通次數之一色溫調整訊號CTA。脈波寬度調變器3032則依據色溫調整訊號CTA產生對應電源開關50導通次數之一驅動訊號DR,以驅動發光二極體模組10。 In this embodiment, the control circuit 303 includes a control unit 3031 and a pulse width modulator 3032. The control unit 3031 receives the power supply V DD and the detection signal DS. The power supply V DD is used to supply the power required for the operation of the control unit 3031, and the control unit 3031 determines whether the power switch 50 is turned on according to the detection signal DS. And according to the power supply V DD , it is determined whether the power switch 50 is continuously turned on and the number of times of turning on the power switch 50 is counted, and a color temperature adjustment signal CTA corresponding to the number of times the power switch 50 is turned on is generated. The pulse width modulator 3032 generates a driving signal DR corresponding to the number of times the power switch 50 is turned on according to the color temperature adjustment signal CTA to drive the LED module 10.
其中,由於穩壓單元301於其內部具有一穩壓電容(圖中未示)耦接於其輸出端,此穩壓電容用於穩壓供應電源VDD,當電源開關50關閉時,穩壓電容所儲存之電荷會逐漸減少,也就是供應電源VDD之電壓準位逐漸下降,因此當電源開關50剛開啟時,控制單元3031藉由偵測供應電源VDD之電壓準位得知電源開關50關閉的時間,當供應電源VDD之電壓準位高於一門檻值時,控制單元3031判斷電源開關50關閉之時間小於一重置時間而持續計數電源開關50之導通次數,並輸出對應電源開關50此次導通次數的色溫調整訊號CTA,當供應電源VDD之電壓準位低於門檻值時,則控制單元3031判斷電源開關50關閉時間超過重置時間而重新計數電源開關50之 導通次數,並輸出對應電源開關50為第一次導通的色溫調整訊號CTA。 Wherein, since the voltage stabilizing unit 301 has a voltage stabilizing capacitor (not shown) coupled to the output end thereof, the stabilizing capacitor is used for the regulated power supply V DD , and when the power switch 50 is turned off, the voltage regulator is regulated. The charge stored in the capacitor is gradually reduced, that is, the voltage level of the power supply V DD is gradually decreased. Therefore, when the power switch 50 is just turned on, the control unit 3031 knows the power switch by detecting the voltage level of the power supply V DD . When the voltage level of the power supply V DD is higher than a threshold value, the control unit 3031 determines that the power switch 50 is turned off for less than a reset time and continuously counts the number of times the power switch 50 is turned on, and outputs the corresponding power source. When the voltage level of the power supply V DD is lower than the threshold value, the control unit 3031 determines that the power switch 50 is turned off for more than the reset time and re-counts the number of times the power switch 50 is turned on. And outputting a color temperature adjustment signal CTA corresponding to the power switch 50 for the first time.
此外,本創作亦可不需於控制單元3031設定門檻值,亦可當電源開關50剛開啟時,偵測單元3031接收到有供應電源VDD,即判斷電源開關50關閉之時間小於重置時間而輸出對應之色溫調整訊號。 In addition, the creation unit may not need to set the threshold value in the control unit 3031, or when the power switch 50 is just turned on, the detecting unit 3031 receives the power supply V DD , that is, the time when the power switch 50 is turned off is less than the reset time. Output the corresponding color temperature adjustment signal.
發光二極體模組10包含一發光二極體單元101與一開關單元103。發光二極體單元101耦接穩壓單元301,並用以依據供應電源VDD產生照明光源。開關單元103之一第一端耦接發光二極體單元101之一負極端,而開關單元103之一第二端耦接一參考電壓端,且開關單元103之一控制端耦接脈波寬度調變器3032,用以依據驅動訊號DR而導通或關閉,以依據驅動訊號DR驅動發光二極體單元101產生照明光源。於此實施例中開關單元103為N型金氧半場效電晶體(N-MOSFET),但本創作並不以此為限,開關單元103亦可為任何本領域中所熟知的開關元件。 The LED module 10 includes a light emitting diode unit 101 and a switch unit 103. The illuminating diode unit 101 is coupled to the voltage stabilizing unit 301 and configured to generate an illuminating light source according to the power supply V DD . The first end of the switch unit 103 is coupled to one of the negative ends of the LED unit 101, and the second end of the switch unit 103 is coupled to a reference voltage end, and one of the control units 103 is coupled to the pulse width. The modulator 3032 is configured to be turned on or off according to the driving signal DR to drive the LED unit 101 to generate an illumination source according to the driving signal DR. In this embodiment, the switching unit 103 is an N-type metal oxide half field effect transistor (N-MOSFET), but the present invention is not limited thereto, and the switching unit 103 can also be any switching element well known in the art.
請一併參閱第3圖,其係為本創作之第一實施例之可調色溫之發光二極體照明裝置的操作示意圖。如圖所示,當電源開關50依據使用者下達之控制指令CI開啟時(時間T1),偵測單元302偵測到輸入電源VIN,而輸出偵測訊號DS,且由於控制單元3031偵測到供應電源VDD之電壓準位低於門檻值,因此控制單元3031依據偵測訊號DS與供應電源VDD之電壓準位,傳送對應電源開關50為第一次導通的色溫調整訊號CTA至脈波寬度調變器3032,使脈波寬度調變器3032依據色溫調整訊號CTA產生100%佔空比的脈波寬度調變訊號作為驅動訊號DR,使開關單元103切換為100%導通,使發光二極體單元501被100%的功率驅動而產生照明光源。 Please refer to FIG. 3, which is a schematic diagram of the operation of the color-correctable light-emitting diode lighting device of the first embodiment of the present invention. As shown in the figure, when the power switch 50 is turned on according to the control command issued by the user (time T 1 ), the detecting unit 302 detects the input power V IN and outputs the detection signal DS, and the control unit 3031 detects It is detected that the voltage level of the power supply VDD is lower than the threshold value. Therefore, the control unit 3031 transmits the color temperature adjustment signal CTA to the pulse corresponding to the power switch 50 for the first time according to the voltage level of the detection signal DS and the power supply V DD . The wave width modulator 3032 causes the pulse width modulator 3032 to generate a 100% duty cycle pulse width modulation signal as the driving signal DR according to the color temperature adjustment signal CTA, so that the switching unit 103 switches to 100% conduction, so that the light is turned on. The diode unit 501 is driven by 100% power to produce an illumination source.
接著,短暫關閉電源開關50後再開啟(關閉時間不超過重置時間TR),進入時間T2,由於控制單元3031偵測到供應電源VDD之電壓準位高於門檻值,因此控制單元3031持續對電源開關50之導通次數進行計數,並傳送對應電源開關50為第二次導通的色溫調整訊號CTA至脈波寬度調變器3032,使脈波寬度調變器3032依據色溫調整訊號CTA產生60%佔空比的脈波寬度調變訊號作為驅動訊號DR,使開關單元103切換為60%導通,使發光二極體單元101被60%的功率驅動而產生照明光源。 Then, after the power switch 50 is turned off briefly and then turned on (the off time does not exceed the reset time T R ), the time T 2 is entered, and since the control unit 3031 detects that the voltage level of the power supply V DD is higher than the threshold value, the control unit 3031 continuously counts the number of times the power switch 50 is turned on, and transmits a color temperature adjustment signal CTA corresponding to the power switch 50 for the second time to the pulse width modulator 3032, so that the pulse width modulator 3032 adjusts the signal according to the color temperature CTA. A pulse width modulation signal of 60% duty ratio is generated as the driving signal DR, so that the switching unit 103 is switched to 60% conduction, so that the LED unit 101 is driven by 60% of power to generate an illumination source.
接著,再短暫關閉電源開關10後開啟(關閉時間不超過重置時間TR),進入時間T3,控制單元3031傳送對應電源開關50為第三次導通的色溫調整訊號CTA至脈波寬度調變器3032,使脈波寬度調變器3032依據色溫調整訊號CTA產生40%占空比的脈波寬度調變訊號作為驅動訊號DR,使開關單元103切換為40%導通,使發光二極體單元101被40%的功率驅動而產生照明光源。 Then, after the power switch 10 is turned off briefly, the power switch 10 is turned on (the off time does not exceed the reset time T R ), and the time T 3 is entered. The control unit 3031 transmits the color temperature adjustment signal CTA corresponding to the power switch 50 for the third time to the pulse width adjustment. The transformer 3032 causes the pulse width modulator 3032 to generate a 40% duty cycle pulse width modulation signal as the driving signal DR according to the color temperature adjustment signal CTA, so that the switching unit 103 is switched to 40% conduction, so that the light emitting diode Unit 101 is driven by 40% power to produce an illumination source.
於本實施例中,發光二極體單元101產生之照明光源之色溫值為7000K的冷白光,但本創作並不以上述色溫值為限。因此,當電源開關50第一次開啟(時間T1)時,由於發光二極體單元101被100%的功率驅動,所以發光二極體單元101發出之照明光源為100%之色溫值7000K之冷白光。當電源開關50第二次開啟(時間T2)時,由於發光二極體單元101被60%的功率驅動,所以發光二極體單元101發出之照明光源為60%之色溫值4200K之正白光。而當電源開關50第三次開啟(時間T3)時,由於發光二極體單元101被40%的功率驅動,所以發光二極體單元101發出之照明光源為40%之色溫值2800K之暖白光。 In the present embodiment, the illumination light source generated by the LED unit 101 has a color temperature value of 7000 K of cool white light, but the present invention is not limited to the above color temperature. Therefore, when the power switch 50 is turned on for the first time (time T 1 ), since the light emitting diode unit 101 is driven by 100% of power, the illumination source emitted by the LED unit 101 is 100% color temperature value 7000K. Cold white light. When the power switch 50 is turned on for the second time (time T 2 ), since the light emitting diode unit 101 is driven by 60% of power, the illumination source emitted by the LED unit 101 is 60% of the white light with a color temperature value of 4200K. . When the power switch 50 is turned on for the third time (time T 3 ), since the light emitting diode unit 101 is driven by 40% of power, the illumination source emitted by the LED unit 101 is 40% of the color temperature value of 2800K. White light.
基於上述,本創作之第一實施例之可調色溫之發光二極體照明裝置,藉由偵測單元302偵測電源開關50的導通狀態,並藉由控制單元3031計數與判斷電源開關50的導通次數,且依據電源開關50之導通次數傳送對應之色溫調整訊號CTA,使脈波寬度調變器3032傳送對應電源開關50之導通次數的驅動訊號DR,使發光二極體模組10產生各種亮度與色溫值之照明光源。 Based on the above, the color tunable LED lighting device of the first embodiment of the present invention detects the conduction state of the power switch 50 by the detecting unit 302, and counts and judges the power switch 50 by the control unit 3031. The number of times of conduction is transmitted, and the corresponding color temperature adjustment signal CTA is transmitted according to the number of times of the power switch 50, so that the pulse width modulator 3032 transmits the driving signal DR corresponding to the number of times of turning on the power switch 50, so that the light emitting diode module 10 generates various kinds. Illumination source for brightness and color temperature values.
請參閱第4圖,其係為本創作之第二實施例之可調色溫之發光二極體照明裝置的電路方塊圖。本實施例與第一實施例之差異在於發光二極體模組10更包含一發光二極體單元102與一開關單元104,而控制電路303僅包含控制單元3031,其餘則相同於第一實施例而不再贅述。 Please refer to FIG. 4, which is a circuit block diagram of a color-correctable light-emitting diode lighting device according to a second embodiment of the present invention. The difference between the embodiment and the first embodiment is that the LED module 10 further includes a LED unit 102 and a switch unit 104, and the control circuit 303 only includes the control unit 3031, and the rest is the same as the first implementation. For example, it will not be described again.
如圖所示,控制電路303僅包含一控制單元3031,控制單元3031接收供應電源VDD與偵測訊號DS,並依據偵測訊號DS得知此時電源開關50為開啟或關閉,並依據供應電源VDD得知電源開關50是否為連續切換,而對電源開關50之導通次數進行計數,而輸出對應電源開關50導通次數之驅動訊號DR1及/或DR2。 As shown in the figure, the control circuit 303 includes only a control unit 3031. The control unit 3031 receives the power supply V DD and the detection signal DS, and according to the detection signal DS, the power switch 50 is turned on or off according to the detection signal DS, and is supplied according to the supply. The power source V DD knows whether the power switch 50 is continuously switched, and counts the number of times the power switch 50 is turned on, and outputs a driving signal DR1 and/or DR2 corresponding to the number of times the power switch 50 is turned on.
發光二極體模組10包含發光二極體101、102與開關單元103、104。開關單元103用以依據驅動訊號DR1而導通或關閉,以依據驅動訊號DR1驅動發光二極體單元101產生一第一光源,第一光源具有一第一色溫值。發光二極體單元102耦接穩壓單元301,並用以依據供應電源VDD產生一第二光源。開關單元104之一第一端耦接發光二極體單元102之一負極端,而開關單元104之一第二端耦接參考電壓端,且開關單元104之一控制端耦接控制電路303,用以依據驅動訊號DR2而導通或關閉,以依據驅動訊號DR2驅動發光二極 體單元102產生第二光源,第二光源具有一第二色溫。 The LED module 10 includes the LEDs 101 and 102 and the switching units 103 and 104. The switch unit 103 is configured to be turned on or off according to the driving signal DR1 to drive the LED unit 101 to generate a first light source according to the driving signal DR1. The first light source has a first color temperature value. The illuminating diode unit 102 is coupled to the voltage stabilizing unit 301 and configured to generate a second light source according to the power supply V DD . The first end of the switch unit 104 is coupled to the negative terminal of the LED unit 102, and the second end of the switch unit 104 is coupled to the reference voltage terminal, and one of the control terminals 104 is coupled to the control circuit 303. For turning on or off according to the driving signal DR2, the second light source is generated by driving the LED unit 102 according to the driving signal DR2, and the second light source has a second color temperature.
請一併參閱第5圖,其係為本創作之第二實施例之可調色溫之發光二極體照明裝置的操作示意圖。如圖所示,當電源開關50依據使用者下達之控制指令CI開啟時(時間T1),偵測單元302偵測到輸入電源VIN,而輸出偵測訊號DS,且由於控制單元3031偵測到供應電源VDD之電壓準位低於門檻值,因此控制單元3031依據偵測訊號DS與供應電源VDD,傳送驅動訊號DR1至開關單元103,使開關單元103切換為導通,以單獨致能發光二極體單元101,使發光二極體模組10發出之照明光源為發光二極體單元101產生之第一光源。 Please refer to FIG. 5, which is a schematic diagram of the operation of the color-correctable light-emitting diode lighting device of the second embodiment of the present invention. As shown in the figure, when the power switch 50 is turned on according to the control command issued by the user (time T 1 ), the detecting unit 302 detects the input power V IN and outputs the detection signal DS, and the control unit 3031 detects It is detected that the voltage level of the power supply V DD is lower than the threshold value. Therefore, the control unit 3031 transmits the driving signal DR1 to the switching unit 103 according to the detecting signal DS and the power supply V DD , so that the switching unit 103 is switched to be turned on. The illuminating diode unit 101 is configured such that the illuminating light source emitted from the illuminating diode module 10 is the first light source generated by the illuminating diode unit 101.
接著,短暫關閉電源開關50後再開啟(關閉時間不超過重置時間TR),進入時間T2,由於控制單元3031偵測到供應電源VDD之電壓準位高於門檻值,因此,控制單元3031判斷電源開關50為連續切換,而對電源開關50之導通次數持續計數,且由於控制單元3031會對電源開關50之導通次數進行計數而得知此次為第二次開啟,以傳送驅動訊號DR2至開關單元104,使開關單元104切換為導通,以單獨致能發光二極體單元102,使發光二極體模組10發出之照明光源為發光二極體單元102產生之第二光源。 Then, after the power switch 50 is turned off briefly and then turned on (the off time does not exceed the reset time T R ), the time T 2 is entered, and since the control unit 3031 detects that the voltage level of the power supply V DD is higher than the threshold value, the control is performed. The unit 3031 determines that the power switch 50 is continuously switched, and continuously counts the number of times the power switch 50 is turned on, and since the control unit 3031 counts the number of times the power switch 50 is turned on, it is known that the second time is turned on to transmit the drive. The signal DR2 is switched to the switch unit 104 to switch the switch unit 104 to be turned on to separately enable the light emitting diode unit 102, so that the illumination source emitted by the LED module 10 is the second light source generated by the LED unit 102. .
接著,再短暫關閉電源開關50後開啟(關閉時間不超過重置時間TR),進入時間T3,控制單元3031判斷電源開關10為連續切換,並由計數結果得知為第三次開啟,以分別傳送驅動訊號DR1、DR2至開關單元103、104,使開關單元103與104皆切換為導通,以同時致能發光二極體單元101與102,使發光二極體單元101、102產生之第一光源與第二光源互相混和為發光二極體模組10發出之照明 光源,而由於發光二極體單元101、102為同時被完全導通,因此照明光源之色溫為第一光源與第二光源之平均色溫。 Then, after the power switch 50 is turned off briefly, the power switch 50 is turned on (the off time does not exceed the reset time T R ), and the time T 3 is entered. The control unit 3031 determines that the power switch 10 is continuously switched, and is known to be turned on for the third time by the counting result. The driving signals DR1 and DR2 are respectively transmitted to the switching units 103 and 104 to switch the switching units 103 and 104 to be turned on to simultaneously enable the LED units 101 and 102 to generate the LED units 101 and 102. The first light source and the second light source are mixed with each other to be an illumination source emitted by the LED module 10, and since the LED units 101 and 102 are simultaneously fully turned on, the color temperature of the illumination source is the first source and the second The average color temperature of the light source.
於本實施例中,發光二極體單元101產生之第一光源具有色溫值為7000K冷白光之第一色溫,而發光二極體單元202產生之第二光源具有色溫值為2000K暖白光之第二色溫,但本創作並不以上述色溫值為限。 In this embodiment, the first light source generated by the LED unit 101 has a color temperature value of 7000K cold white light, and the second light source generated by the LED unit 202 has a color temperature value of 2000K warm white light. Two-color temperature, but this creation is not limited to the above color temperature.
因此,當電源開關50第一次開啟(時間T1)時,發光二極體模組10發出之照明光源為發光二極體單元101之色溫值為7000K冷白光之第一色溫。當電源開關50第二次開啟(時間T2)時,發光二極體模組10發出之照明光源為發光二極體單元102之色溫值為2000K暖白光之第二色溫。而當電源開關50第三次開啟(時間T3)時,發光二極體模組10發出之照明光源為發光二極體單元101、102互相混和之色溫值為4500K正白光。 Therefore, when the power switch 50 is turned on for the first time (time T 1 ), the illumination source emitted by the LED module 10 is the first color temperature of the luminescent color of the illuminating diode unit 101 of 7000K cold white light. When the power switch 50 is turned on for the second time (time T 2 ), the illumination source emitted by the LED module 10 is the second color temperature of the light-emitting diode unit 102 having a color temperature value of 2000K warm white light. When the power switch 50 is turned on for the third time (time T 3 ), the illumination source emitted by the LED module 10 is a color temperature value of 4500K white light mixed with the LED units 101 and 102.
基於上述,本創作之第二實施例之可調色溫之發光二極體照明裝置,藉由偵測單元302偵測電源開關50之導通狀態,並藉由控制單元3031計數與判斷電源開關50的導通次數,且依據電源開關50的開啟次數傳送對應的驅動訊號DR1及/或DR2,以致能發光二極體單元101及/或102,使發光二極體模組10產生具有第一色溫(發光二極體101)、第二色溫(發光二極體102)或互相混和之照明光源的色溫值。 Based on the above, the color tunable LED lighting device of the second embodiment of the present invention detects the conduction state of the power switch 50 by the detecting unit 302, and counts and judges the power switch 50 by the control unit 3031. The number of times of conduction is transmitted, and the corresponding driving signals DR1 and/or DR2 are transmitted according to the number of times the power switch 50 is turned on, so that the LED units 101 and/or 102 can be illuminated, so that the LED module 10 has the first color temperature (lighting). The color temperature value of the diode 101), the second color temperature (light emitting diode 102), or the illumination source mixed with each other.
請參閱第6圖,其係為本創作之第三實施例之可調色溫之發光二極體照明裝置的電路方塊圖。本實施例與第一實施例之差異在於控制電路303更包含一反相器3033,且發光二極體模組10包含發 光二極體單元102與開關單元104。 Please refer to FIG. 6, which is a circuit block diagram of a color-correctable light-emitting diode lighting device according to a third embodiment of the present invention. The difference between this embodiment and the first embodiment is that the control circuit 303 further includes an inverter 3033, and the LED module 10 includes The photodiode unit 102 and the switching unit 104.
如圖所示,反相器3033耦接脈波寬度調變器3032,用以反相脈波寬度調變器3032輸出之一驅動訊號DR1而產生一驅動訊號DR2,並輸出驅動訊號DR2至開關單元104以導通開關單元104,進而驅動發光二極體單元102,其餘原理如第一實施例與第二實施例所述,因此不再贅述。 As shown in the figure, the inverter 3033 is coupled to the pulse width modulator 3032 for inverting the pulse width modulator 3032 to output a driving signal DR1 to generate a driving signal DR2, and outputting the driving signal DR2 to the switch. The unit 104 turns on the switch unit 104 to drive the LED unit 102. The rest of the principle is as described in the first embodiment and the second embodiment, and therefore will not be described again.
請一併參閱第7圖,其係為本創作之第三實施例之可調色溫之發光二極體照明裝置的操作示意圖。如圖所示,當電源開關50開啟時(時間T1),控制單元3031依據偵測訊號DS與供應電源VDD傳送對應電源開關50第一次導通之色溫調整訊號CTA至脈波寬度調變器3032,使脈波寬度調變器3032輸出對應色溫調整訊號CTA之佔空比為100%的驅動訊號DR1至開關單元103,使開關單元103切換為導通,而由於驅動訊號DR2為驅動訊號DR1之反相,因此驅動訊號DR2之佔空比為0%,所以僅致能發光二極體單元101,使發光二極體模組10發出之照明光源為發光二極體單元101產生之第一光源。 Please refer to FIG. 7 , which is a schematic diagram of the operation of the color tunable LED lighting device of the third embodiment of the present invention. As shown in the figure, when the power switch 50 is turned on (time T 1 ), the control unit 3031 transmits the color temperature adjustment signal CTA corresponding to the power switch 50 for the first time according to the detection signal DS and the power supply V DD to the pulse width modulation. The device 3032 causes the pulse width modulator 3032 to output the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA to the switching unit 103 to switch the switching unit 103 to be turned on, and the driving signal DR2 is the driving signal DR1. Since the duty ratio of the driving signal DR2 is 0%, only the light emitting diode unit 101 is enabled, so that the illumination light source emitted from the LED module 10 is the first one generated by the LED unit 101. light source.
接著,短暫關閉電源開關10後再開啟(關閉時間不超過重置時間TR),進入時間T2,控制單元3031依據偵測訊號DS與供應電源VDD傳送對應電源開關50第二次導通之色溫調整訊號CTA至脈波寬度調變器3032,使脈波寬度調變器3032輸出對應色溫調整訊號CTA之佔空比為60%的驅動訊號DR1至開關單元103,使發光二極體單元101被佔空比為60%的驅動訊號DR1致能,而由於驅動訊號DR2為驅動訊號DR1之反相,因此驅動訊號DR2之佔空比為40%,且亦致能發光二極體單元102,使發光二極體模組10發出之照明光源為 由發光二極體單元101、102產生之第一光源、第二光源混和而成,且由於發光二極體101是由佔空比為60%的驅動訊號DR1致能,因此第一光源之亮度為完全致能的60%,同理第二光源之亮度亦為完全致能的40%。 Then, after the power switch 10 is turned off briefly and then turned on (the off time does not exceed the reset time T R ), the time T 2 is entered, and the control unit 3031 transmits the corresponding power switch 50 for the second time according to the detection signal DS and the power supply V DD . The color temperature adjustment signal CTA to the pulse width modulator 3032 causes the pulse width modulator 3032 to output the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA to 60% to the switching unit 103, so that the light emitting diode unit 101 The driving signal DR1 with a duty ratio of 60% is enabled, and since the driving signal DR2 is the inversion of the driving signal DR1, the duty ratio of the driving signal DR2 is 40%, and the LED unit 102 is also enabled. The illumination source emitted from the LED module 10 is a mixture of the first source and the second source generated by the LED units 101 and 102, and the duty ratio is 60% due to the LED 101. The driving signal DR1 is enabled, so the brightness of the first light source is 60% of the full power, and the brightness of the second light source is also 40% of the full power.
接著,短暫關閉電源開關10後再開啟(關閉時間不超過重置時間TR),進入時間T3,控制單元3031依據偵測訊號DS與供應電源VDD傳送對應電源開關50第三次開啟之色溫調整訊號CTA至脈波寬度調變器3032,使脈波寬度調變器3032輸出對應色溫調整訊號CTA之佔空比為40%的驅動訊號DR1至開關單元103,使發光二極體單元101被佔空比為40%的驅動訊號DR1致能,而由於驅動訊號DR2為驅動訊號DR1之反相,因此驅動訊號DR2之佔空比為60%,且亦致能發光二極體單元102,使發光二極體模組10發出之照明光源為由發光二極體101、102產生之第一光源、第二光源混和而成,且由於發光二極體單元101是由佔空比為40%的驅動訊號DR1致能,因此第一光源之亮度為完全致能的40%,同理第二光源之亮度亦為完全致能的60%。 Then, after the power switch 10 is turned off briefly and then turned on (the off time does not exceed the reset time T R ), the time T 3 is entered, and the control unit 3031 transmits the corresponding power switch 50 for the third time according to the detection signal DS and the power supply V DD . The color temperature adjustment signal CTA to the pulse width modulator 3032 causes the pulse width modulator 3032 to output the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA to 40% to the switching unit 103, so that the light emitting diode unit 101 The driving signal DR1 with a duty ratio of 40% is enabled, and since the driving signal DR2 is the inversion of the driving signal DR1, the duty ratio of the driving signal DR2 is 60%, and the LED unit 102 is also enabled. The illumination source emitted from the LED module 10 is a mixture of the first source and the second source generated by the LEDs 101 and 102, and the duty ratio is 40% due to the LED unit 101. The driving signal DR1 is enabled, so the brightness of the first light source is 40% of the total energy, and the brightness of the second light source is also 60% of the full power.
由上述可知,本實施例之發光二極體單元101之色溫值為7000K,而發光二極體單元102之色溫值為2000K,藉由脈波寬度調變器3032輸出之脈波調變訊號(驅動訊號DR1、DR2)的佔空比,分別調整發光二極體單元101與102之亮度,進而分別調整發光二極體單元101與102之色溫,且更可調整兩者混和而成之照明光源的色溫與亮度,將發光二極體模組10發出之照明光源調整介於色溫值7000K至2000K之間。 As can be seen from the above, the color temperature value of the LED unit 101 of the present embodiment is 7000K, and the color temperature value of the LED unit 102 is 2000K, and the pulse wave modulation signal output by the pulse width modulator 3032 ( The duty ratios of the driving signals DR1 and DR2 are respectively adjusted to adjust the brightness of the LED units 101 and 102, and the color temperatures of the LED units 101 and 102 are respectively adjusted, and the illumination source of the two can be adjusted. The color temperature and brightness adjust the illumination source emitted by the LED module 10 between 7000K and 2000K.
例如,當驅動訊號DR1、DR2的佔空比分別為100%、0%,則照明光 源之色溫值即為7000K,若驅動訊號DR1、DR2的佔空比分別為0%、100%,則照明光源之色溫值即為2000K,若驅動訊號DR1、DR2的佔空比分別為50%、50%,則照明光源之色溫值即為4500K。即驅動訊號DR1的佔空比越高,則驅動訊號DR2的佔空比相對地越低,而照明光源之色溫值則越接近7000K。 For example, when the duty ratios of the driving signals DR1 and DR2 are 100% and 0%, respectively, the illumination light The color temperature value of the source is 7000K. If the duty ratios of the driving signals DR1 and DR2 are 0% and 100%, respectively, the color temperature value of the illumination source is 2000K, and the duty ratios of the driving signals DR1 and DR2 are respectively 50%. 50%, the color temperature value of the illumination source is 4500K. That is, the higher the duty ratio of the driving signal DR1, the lower the duty ratio of the driving signal DR2 is, and the closer the color temperature value of the illumination source is to 7000K.
請參閱第8圖,其係為本創作之第四實施例之可調色溫之發光二極體照明裝置的電路方塊圖。本實施例與第三實施例之差異在於控制電路303的部分,其餘則相同於第三實施例而不再贅述。 Please refer to FIG. 8 , which is a circuit block diagram of a color tunable LED lighting device according to a fourth embodiment of the present invention. The difference between this embodiment and the third embodiment lies in the part of the control circuit 303, and the rest is the same as the third embodiment and will not be described again.
如圖所示,控制電路303包含控制單元3031、脈波寬度調變器3032以及一脈波寬度調變器3034。控制單元3031耦接穩壓單元301與偵測單元302,以供應電源VDD作為運作所需之電源,並依據偵測單元302傳送之偵測訊號DS得知電源開關50為導通或關閉,並依據供應電源VDD得知電源開關50之導通次數,而輸出對應電源開關50導通次數之複數色溫調整訊號CTA1、CTA2。脈波寬度調變器3032耦接控制單元3031,並依據色溫調整訊號CTA1產生對應之脈波調變訊號作為驅動訊號DR1。脈波寬度調變器3034耦接控制單元3031,並依據色溫調整訊號CTA2產生對應之脈波調變訊號作為驅動訊號DR2。 As shown, the control circuit 303 includes a control unit 3031, a pulse width modulator 3032, and a pulse width modulator 3034. The control unit 3031 is coupled to the voltage stabilizing unit 301 and the detecting unit 302 to supply the power source V DD as the power source required for operation, and the power switch 50 is turned on or off according to the detecting signal DS transmitted by the detecting unit 302. The number of times the power switch 50 is turned on is obtained according to the power supply V DD , and the plurality of color temperature adjustment signals CTA1 and CTA2 corresponding to the number of times the power switch 50 is turned on are output. The pulse width modulator 3032 is coupled to the control unit 3031, and generates a corresponding pulse modulation signal as the driving signal DR1 according to the color temperature adjustment signal CTA1. The pulse width modulator 3034 is coupled to the control unit 3031, and generates a corresponding pulse modulation signal as the driving signal DR2 according to the color temperature adjustment signal CTA2.
請一併參閱第9圖,其係為本創作之第三實施例之可調色溫之發光二極體照明裝置的操作示意圖。本實施例與第二實施例之差異僅在於,本實施例之控制單元3031為透過色溫調整訊號CTA1、CTA2分別控制脈波寬度調變器3032、3034產生各種佔空比之脈波調變訊號以作為驅動訊號DR1、DR2,而此驅動訊號DR1、DR2的佔空比並非如第三實施例為互相反相的。 Please refer to FIG. 9 , which is a schematic diagram of the operation of the color tunable LED lighting device of the third embodiment of the present invention. The difference between this embodiment and the second embodiment is only that the control unit 3031 of the embodiment controls the pulse width modulation signals 30A1 and 3034 to generate pulse wave modulation signals of various duty ratios through the color temperature adjustment signals CTA1 and CTA2. As the driving signals DR1, DR2, the duty ratios of the driving signals DR1, DR2 are not mutually inverted as in the third embodiment.
如圖所示,當電源開關50開啟時(時間T1),控制單元3031依據偵測訊號DS與供應電源VDD傳送對應電源開關50第一次開啟之色溫調整訊號CTA1、CAT2至脈波寬度調變器3032、3034,使脈波寬度調變器3032傳送對應色溫調整訊號CTA1之佔空比為100%的驅動訊號DR1至開關單元103,使開關單元103切換為完全導通,而使脈波寬度調變器3034傳送對應色溫調整訊號CTA2之佔空比為0%的驅動訊號DR2至開關單元104,使開關單元104切換為關閉,以僅致能發光二極體單元101,使發光二極體模組10發出之照明光源為發光二極體101產生之第一光源。 As shown in the figure, when the power switch 50 is turned on (time T 1 ), the control unit 3031 transmits the color temperature adjustment signals CTA1 and CAT2 corresponding to the power switch 50 for the first time to the pulse width according to the detection signal DS and the power supply V DD . The modulators 3032 and 3034 enable the pulse width modulator 3032 to transmit the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA1 to 100% to the switching unit 103, so that the switching unit 103 is switched to be fully turned on, and the pulse wave is made. The width modulator 3034 transmits the driving signal DR2 corresponding to the duty ratio of the color temperature adjustment signal CTA2 to 0% to the switching unit 104, so that the switching unit 104 is switched off to enable only the light emitting diode unit 101 to make the light emitting diode The illumination source emitted by the body module 10 is the first light source generated by the LED 201.
接著,短暫關閉電源開關50後再開啟(關閉時間不超過重置時間TR),進入時間T2,控制單元3031依據偵測訊號DS與供應電源VDD傳送對應電源開關50第二次開啟之色溫調整訊號CTA1、CTA2至脈波寬度調變器3032、3034,使脈波寬度調變器3032產生對應色溫調整訊號CTA1之佔空比為60%的驅動訊號DR1至開關單元103,使發光二極體101被佔空比為60%的驅動訊號DR1致能,使脈波寬度調變器3034亦產生對應色溫調整訊號CTA2之佔空比為60%的驅動訊號DR2至開關單元104,使發光二極體單元102被佔空比為60%的驅動訊號DR2致能,使發光二極體模組10發出之照明光源為由發光二極體單元101、102產生之第一光源、第二光源混和而成,且由於發光二極體單元101、102皆由佔空比為60%的驅動訊號致能,因此第一光源、第二光源之亮度皆為完全致能的60%。 Then, after the power switch 50 is turned off briefly and then turned on (the off time does not exceed the reset time T R ), the time T 2 is entered, and the control unit 3031 transmits the corresponding power switch 50 according to the detection signal DS and the power supply V DD for the second time. The color temperature adjustment signals CTA1 and CTA2 are connected to the pulse width modulators 3032 and 3034, so that the pulse width modulator 3032 generates the driving signal DR1 corresponding to the duty ratio of the color temperature adjustment signal CTA1 to 60% to the switching unit 103, so that the light emitting diodes The pole body 101 is enabled by the driving signal DR1 with a duty ratio of 60%, so that the pulse width modulator 3034 also generates the driving signal DR2 corresponding to the duty ratio of the color temperature adjusting signal CTA2 to 60% to the switching unit 104, so that the light is emitted. The diode unit 102 is enabled by the driving signal DR2 with a duty ratio of 60%, so that the illumination source emitted by the LED module 10 is the first source and the second source generated by the LED units 101 and 102. Since the light-emitting diode units 101 and 102 are all driven by a driving signal with a duty ratio of 60%, the brightness of the first light source and the second light source are all fully enabled by 60%.
接著,短暫關閉電源開關50後再開啟(關閉時間不超過重置時間TR),進入時間T3後之原理相同於上述,差異僅在於脈波寬度調變器3032、3034產生之驅動訊號DR1、DR2的佔空比皆為40%,其餘 則不再贅述。 Then, after the power switch 50 is turned off briefly and then turned on (the off time does not exceed the reset time T R ), the principle after entering the time T 3 is the same as the above, the difference is only the driving signal DR1 generated by the pulse width modulators 3032, 3034. The duty ratio of DR2 is 40%, and the rest will not be described.
基於上述,本實施例藉由設置複數的脈波寬度調變器3032、3034以分別產生對應電源開關50切換次數之驅動訊號DR1、DR2,相對於第三實施例,本實施例之驅動訊號DR1、DR2之佔空比並非一定是互相反相且相對應的,使發光二極體單元101、102可混和而成的照明光源更為多變。 Based on the above, the driving signal DR1, DR2 of the present embodiment is generated by the plurality of pulse width modulators 3032 and 3034 to generate the driving signals DR1 and DR2 corresponding to the number of times of switching of the power switch 50. The duty ratios of the DR2s are not necessarily opposite to each other and correspond to each other, so that the illumination sources that can be mixed by the LED units 101 and 102 are more variable.
另外,本創作不僅限定於藉由控制單元3031偵測供應電源VDD之電壓準位而計數電源開關50之導通次數,亦可藉由偵測單元302供應電源VDD之電壓準位,而偵測原理相同於控制單元3031,且偵測單元302依據偵測結果進行計數,並輸出對應電源開關50不同導通次數的偵測訊號DS至控制單元3031,以使控制單元3031得知電源開關50之導通時間而輸出對應之訊號。 In addition, the present invention is not limited to counting the number of times the power switch 50 is turned on by detecting the voltage level of the power supply V DD by the control unit 3031, and the voltage level of the power source V DD can be supplied by the detecting unit 302. The control unit is the same as the control unit 3031, and the detecting unit 302 counts according to the detection result, and outputs a detection signal DS corresponding to the different number of times of the power switch 50 to the control unit 3031, so that the control unit 3031 knows the power switch 50. Turn on the time and output the corresponding signal.
此外,本創作並不僅限定藉由控制單元3031或偵測單元302偵測電源開關50之導通次數作為調整的依據,亦可直接對控制單元3031下達調整發光二極體模組色溫值及亮度的指令。且本創作之發光二極體模組不僅限於只包含一組或兩組發光二極體單元,亦可為複數組發光二極體單元。 In addition, the present invention not only limits the number of times the power switch 50 is turned on by the control unit 3031 or the detecting unit 302 as a basis for adjustment, but also directly adjusts the color temperature value and brightness of the light emitting diode module to the control unit 3031. instruction. Moreover, the LED module of the present invention is not limited to only one or two sets of light-emitting diode units, and may also be a complex array of light-emitting diode units.
綜上所述,本創作之可調色溫之發光二極體照明裝置,依據電源開關之導通次數作為調整照明光源色溫之指令,單獨致能一組發光二極體單元,或同時致能複數發光二極體單元,以使該些發光二極體單元輸出之光源單獨或互相混和為照明光源。或者,藉由脈波寬度調變器調整致能該些發光二極體單元之佔空比,更進一步分別調整該些發光二極體單元之亮度與色溫後再加以混和,以 使照明光源可混和而成的色溫更為多變。 In summary, the color-adjustable light-emitting diode lighting device of the present invention is based on the number of times the power switch is turned on as a command for adjusting the color temperature of the illumination source, separately enabling a group of light-emitting diode units, or simultaneously enabling multiple light-emitting diodes. The diode unit is such that the light sources output by the light emitting diode units are separately or mutually mixed as an illumination source. Alternatively, the duty ratio of the light-emitting diode units is adjusted by the pulse width modulator, and the brightness and color temperature of the light-emitting diode units are further adjusted and then mixed. The color temperature that makes the illumination source mixable is more variable.
惟以上所述者,僅為本創作之較佳實施例而已,並非用來限定本創作實施之範圍,舉凡依本創作申請專利範圍所述之形狀、構造、特徵及精神所為之均等變化與修飾,均應包括於本創作之申請專利範圍內。 However, the above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the variations, modifications, and modifications of the shapes, structures, features, and spirits described in the scope of the patent application. , should be included in the scope of the patent application of this creation.
本創作係實為一具有新穎性、進步性及可供產業利用者,應符合我國專利法所規定之專利申請要件無疑,爰依法提出新型專利申請,祈 鈞局早日賜准專利,至感為禱。 This creative department is a novelty, progressive and available for industrial use. It should meet the requirements of patent applications stipulated in China's Patent Law. It is undoubtedly a new type of patent application, and the Prayer Council will grant patents as soon as possible. prayer.
10‧‧‧發光二極體模組 10‧‧‧Lighting diode module
30‧‧‧驅動電路 30‧‧‧Drive circuit
50‧‧‧電源開關 50‧‧‧Power switch
DR‧‧‧驅動訊號 DR‧‧‧ drive signal
VIN‧‧‧輸入電源 V IN ‧‧‧Input power supply
VDD‧‧‧供應電源 V DD ‧‧‧Power supply
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI727387B (en) * | 2019-08-02 | 2021-05-11 | 大陸商全億大科技(佛山)有限公司 | Controllable silicon light regulation apparatus |
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