M381241 五、新型說明： 【新型所屬之技術領域】 本新型係關於一種調光裝置，尤指一種針對led光源 之調光裝置。 【先前技術】 隨著科技的進步，以及節能省電的潮流，各種燈具以 及各種新式的光源不斷地被發展出來，例如：從傳統的白 熾燈泡至最新的白光LED燈泡等。隨著這些光源應用範圍 的增加，例如：舞台燈光或是家庭照明等，各種得以調整 光線明暗程度的調光裝置也被廣泛地應用。但是，各種不 =光源的驅動模式並不相同，因此，這些調光裝置也:須 隨之進行改良以適用於各種光源。 、 士傳統的光源，如：白熾光源，一般使用壽命為10⑽ J,寸以上為目刖最為廣泛應用的光源，於一般家庭戋商 業用照明皆可見此種傳統之光源。新型的光源，如哪 (Light Emitting Diode，發光二極體）光源，則具 ，100_小時以上的使用壽命，並且同時具有省電、反^ %間短的優勢。隨著節能省碳的潮流，LED光源也受到^ 眾的歡迎。 圖 第一圖所示為傳統光源裝置之調光S置的模組示意 1 找置1主要是針對伽光源裝置12進行光源 傳統錢裝置12 —般採用白熾切做ί 其先源。傳統光源裝置12可直接利用市電（交流電源訊^ M381241 等交流訊號直接驅動發光，因此，僅需於交流電源10與傳 統光源裝置12之間，加裝一個調光器11，即可利用此調 光器11對傳統光源裝置12進行光亮度的調整。 一般來說，調光器11可為TRIAC ( TRIode for Alternating Current )或是 SCR(Si 1 icon Control led Rectifier)，其可透過調整輸入之交流電源的電流大小、 電壓大小、或是相位，以達到調整傳統光源裝置12發光亮 度的目的。由於，傳統光源裝置12可直接利用交流訊號進 行驅動，因此，調光器11所輸出之訊號亦為一交流訊號。 第二圖所示為傳統之LED光源裝置之調光裝置的模組 示意圖。 LED光源裝置24為一種利用發光二極體（LED)作為 其光源之裝置，由於LED光源只能被直流電源驅動發光， 因此無法如傳統光源可直接利用市電（交流電源訊號）驅動 發光。所以，必須在交流電源10以及LED光源裝置24之 間再加上一類比/數位轉換電路21 (AC to DC converter, ADC)以將交流電源訊號轉換成直流電源訊號，才能夠順利 驅動LED光源裝置24。惟，目前市售之轉換電路，例如： 用於白熾燈之安定器，並沒有支援電源訊號轉換的功能， 造成一般民眾無法直接將傳統光源之白熾光源替換成新型 之LED光源。 再者，單純驅動LED光源裝置24發光並無法完全滿足 使用的需求，必須要加上調光的功能，才能夠符合使用者 於家庭或是於舞台上的應用。因此，如第一圖所示之調光 器11後端再接上一傳統LED調光電路25，即可將交流訊 號轉換成直流訊號，對LED光源裝置24進行調光動作。其 M381241 中’傳統LED調光電路25以及調光器11可組成一傳統led 周光裝置2，且傳統LED s周光電路2 5包含一類比/數位轉 換電路21、一脈寬調變電路22以及一脈寬調變訊號控制 電路23。 傳統LED έ周光裝置2之調光器11連接至交流電源1 〇 以接收交流電源10之交流電源訊號，並進行交流電源丄〇 之電流、電壓或相位的調整以形成調光訊號。類比/數位轉 換電路21、連接至調光器π以接收調光器u之調光訊 號，並進行類比及數位的轉換，以形成直流的轉換訊號。 脈寬調變電路22,連接至類比/數位轉換電路21以及脈寬 凋麦sfl號控却]電路23，接收類比/數位轉換電路μ之轉換 訊號以及脈寬調變訊號控制電路23之脈寬調變控制訊號 以形成脈寬調變訊號。最後，傳統的LED光源裝置24連接 至脈寬調變電路22,並接收脈寬調變訊號以,_ LED光^ 裝置24進行發光。其中，脈寬調變電路22一般常用直、、 直流轉換之脈寬調變電路22，接收直流的轉換訊號以作^ 輸出轉換訊號的參考電鮮位，且接收脈寬調變訊號控制 電路23之脈寬調變控制訊號以作為輸出轉換訊號的參考 工作週期。 一^三_示為傳統之⑽光縣置之戦裝置的訊號 二電源1G之交流電源訊號通f為正弦波或是餘弦 二：此以正弦波作為例子以說明。請同時參考苐二圖及 弟f，調光器11接收交流電源1G之交流電源訊號^ 調整調光器u而產生—個調光訊號，:般來 祝’调h η可分為調整交流電軌號之 ^ M381241 種類’於此以調整相位的調光器η為例。因此，當 11接收父流電源iQ之交流電源訊號，並產生一調 號為1/4週期於正半週期與負半週期的正弦波波形。 祕/數㈣換電路21触此㈣訊號，並經賴比/數位 轉換電路12之整流、變麗以及穩麵，產生—具有直流電 麼的轉換訊號。脈寬調變電路22接收此轉換訊號，並且配 ，上脈寬調變訊號控制電路23所送出之脈寬調變控制訊 ^即可產生-n變訊號。LED光源裝置24接收此脈 見調變訊號以驅動LED光源發光。其中，脈寬調變電路22 可错由調整脈寬調變訊號的電壓準位或是責任週期㈠咐 cycle)比例以調整LED光源裝置24的發光意产^ 24J二調光器 11，組合上傳統調光電路25即可形成—傳統咖 I並可產生-脈寬調變訊號以驅動LED光源裝置仏ς =若制者對調光器u所調整之導通角度過 ^ 為各個廠牌或是不同規格之調光器丨丨所 、j曰 電流值過小，使得交流/錢職電路21 料訊號的 作電流的臨界值之調光訊號，則交流/直淠 到低於其工 出之轉換訊號即會不穩定’或是使得脈寬調電路21輸 收到的轉換訊號的電流值低於脈寬調變雷妝又:路22所接 流的臨界值，都會使得脈寬調變電路22所“^ 平兩出的日於官1七岡傲 訊號變為-不規則的訊號，此不規則之轉換 ^J = 調變訊號會使細光源裝置24產生_或是 狀況。另外，由於傳統上採用直流對直添沾nr/、、、次^儿的 22，此種脈寬調變電路22不具備變壓器的轉^ °门又％路 不具備隔離的效果，此會使得傳統的LED 、線圈’因此 原骏置24易有 7 M381241 漏電的問題。 【新型内容】 根據本新型之一實施例提供一種LED調光裝置，包 括：一調光器，與一交流電源連接，以接收一交流電源訊 號，並產生一調光訊號；一整流電路，與該調光器連接， 以接收該調光訊號，並將該調光訊號進行整流以產生一整 流訊號；一匹配電路，與該調光器連接，以接收該整流訊 號，並將該整流訊號進行訊號匹配，以產生一匹配訊號； 一類比/數位轉換電路，與該匹配電路連接，以接收該匹配 訊號，並將該匹配訊號進行訊號轉換，以形成一具有正半 週期之正弦波之轉換訊號；以及一脈寬調變電路，與該類 比/數位轉換電路連接，以接收該轉換訊號，並根據該轉換 訊號產生一調變訊號，並將該調變訊號送至一 LED光源裝 置以驅動該LED光源裝置發光。 根據本新型之一實施例提供一種LED調光電路，包 括：一匹配電路，與一調光器連接，以接收該調光器之一 調光訊號，並將該調光訊號轉換為一匹配訊號；一類比/ 數位轉換電路，與該批配電路連接，以接收該匹配訊號， 並將該匹配訊號進行訊號轉換，以形成一具有正半週期之 正弦波之轉換訊號；以及一脈寬調變電路，與該類比/數位 轉換電路連接，以接收該轉換訊號，並根據該轉換訊號產 生一調變訊號，並將該調變訊號送至一 LED光源裝置以驅 動該LED光源裝置發光。 本案新型人提出本案之新型概念，本新型之機制係與 公知技術截然不同，俾以提供一種LED調光裝置，可利用 8 M381241 傳統之調光器以及本新型之LED調光裝置，即可能夠對LED 光源裝置進行調光，以促進產業升級。 以上之概述與接下來的詳細說明及附圖，皆是為了能 進一步說明本新型為達成預定目的所採取之方式、手段及 ' 功效。而有關本新型的其他目的及優點，將在後續的說明 及圖式中加以闡述。 【實施方式】 鲁第四圖所示為根據本新型第一實施例之LED調光裝置 的糸統模組不意圖。 LED調光裝置3具有一調光器11、一整流電路41、一 主動式的匹配電路42、一類比/數位轉換電路21以及一脈 寬調變電路43。調光器11連接至交流電源10以接收交流 電源訊號’並進行父流電源10之父流電源訊號的電流、電 壓或相位的調整以形成一調光訊號，於本實施例，以改變 父流電源訊號之相位的調光裔11為例。整流電路41 ’連 φ 接至調光器11以接收調光訊號，並對調光訊號進行整流以 產生一整流訊號。主動式的匹配電路42，連接至整流電路 _ 41以接收整流訊號，並對整流訊號做訊號的匹配以產生一 匹配訊號。類比/數位轉換電路21，連接至匹配電路42以 接收匹配訊號，並進行數位及類比的轉換以形成一直流的 轉換訊號。脈寬調變電路43，連接至類比/數位轉換電路 21以接收類比/數位轉換電路21之轉換訊號，並根據轉換 訊號之電壓準位以及工作週期形成一脈寬調變訊號。最 後，LED調光裝置3藉著產生此脈寬調變訊號驅動LED光 源裝置24。其中，整流電路41可與調光器11整合，或者 M381241 與匹配電路42整合，因此，匹配電路42可接收整流後之 調光訊號或是直接接收調光訊號在於匹配電路42内部進 行整流。並且，整流電路41、匹配電路42、類比/數位轉 換電路21以及脈寬調變電路43可組合成一 LED調光電路 40。另外，調光器11可為TRIAC或是SCR調光器。 由於，調光器11為傳統的調光器，其具有為數眾多的 品牌以及不同的規格，甚至各種調光器11於不同的導通角 度所產生之調光訊號及其輸出電流值也不盡相同。因此， 調光器11無法產生一個具有相同規格的調光訊號，造成如 第二圖之傳統LED調光電路25需要針對每一種不同規格的 調光器11進行訊號的調整，才能夠順利調整LED光源裝置 24。 因此，本新型第一實施例利用一個主動式的匹配電路 42，可根據調光器11之調光訊號的變化，將調光訊號進行 全週期的整流，並且，當調光器11於一較低的導通角度， 如：導通角度低於20度時，則匹配電路42即會將所輸出 的電流予以固定，例如：導通角度為20度時的輸出電流 值，以使得匹配訊號具有一最低的輸出電流值，藉此使得 類比/數位轉換電路21或是脈寬調變電路4 3得以接收到一 具有其各自最低工作電流的匹配訊號，以保持類比/數位轉 換電路21或是脈寬調變電路43於正常的工作狀態。由於， 匹配電路42可針對任何一種調光器11所產生的調光訊號 主動進行其輸出電流值的調整，因此其可適用於任何廠牌 或是任何規格的調光器11。其中’主動式的匹配電路4 2 可為任何一種匹配電路，其主要是利用一電壓單元（未顯 示）、一控制單元（未顯示）以及一電流單元（未顯示）的 10 M381241 組合以將調光訊號進行調光訊號的匹配及調整，以使得調 光器11得以在所有相位中及所有工作電壓中都可輸出一 具有最低工作電流之匹配訊號，以使得與匹配電路42連接 之類比/數位轉換電路21以及脈寬調變電路43得以正常工 - 作，從而使得LED光源裝置24得以正常地調整其亮度。 ' 另外，根據本新型第一實施例，LED調光電路40之脈 寬調變電路43為一交流/直流的脈寬調變電路43，其可利 - 用類比/數位轉換電路21所產生的轉換訊號即可產生相對 _ 應之脈寬調變訊號，亦即，脈寬調變電路43可根據轉換訊 號的週期作為脈寬調變訊號的參考工作週期，以及根據轉 換訊號的波形變化作為脈寬調變訊號的參考輸出電壓。並 且，由於此種交流轉換直流的脈寬調變電路43具有一變壓 線圈電路’因此可具有·一隔離的功能’即是脈見調變電路 4 3前端之訊號變化與後端產生之脈寬調變訊號可具有一 隔離效果，可避免LED光源裝置24漏電。M381241 V. New description: [New technical field] The present invention relates to a dimming device, especially a dimming device for a LED light source. [Prior Art] With the advancement of technology and the trend of energy saving, various lamps and various new light sources have been continuously developed, for example, from traditional incandescent bulbs to the latest white LED bulbs. As the range of applications of these light sources increases, such as stage lighting or home lighting, various dimming devices that adjust the brightness of the light are also widely used. However, the driving modes of the various non-light sources are not the same, and therefore, these dimming devices are also required to be modified to suit various light sources. Traditional light sources, such as incandescent light sources, generally have a service life of 10 (10) J. The above is the most widely used light source for viewing. This kind of traditional light source can be seen in general household lighting. The new light source, such as the (Light Emitting Diode) light source, has a service life of more than 100_hour, and at the same time has the advantages of power saving and shortness of each other. With the trend of energy saving and carbon saving, LED light sources have also been welcomed by the public. The first figure shows the module of the traditional light source device's dimming S. 1 Finding 1 is mainly for the gamma light source device 12. The traditional money device 12 generally uses incandescent cutting as its precursor. The conventional light source device 12 can directly directly drive the light by using an AC signal such as an AC power source (M381241). Therefore, it is only necessary to add a dimmer 11 between the AC power source 10 and the conventional light source device 12, and the adjustment can be utilized. The optical device 11 adjusts the brightness of the conventional light source device 12. In general, the dimmer 11 can be a TRIAC (TRIode for Alternating Current) or an SCR (Si 1 icon Controlled Rectifier), which can adjust the input AC. The current magnitude, voltage magnitude, or phase of the power source is used to adjust the brightness of the conventional light source device 12. Since the conventional light source device 12 can be directly driven by the AC signal, the signal output by the dimmer 11 is also An AC signal. The second figure shows a schematic diagram of a module of a conventional LED light source device. The LED light source device 24 is a device that uses a light-emitting diode (LED) as its light source, since the LED light source can only be The DC power supply drives the light, so it is impossible to directly use the commercial power (AC power signal) to drive the light as the conventional light source. Therefore, it must be paid An analog/digital converter circuit (ADC) is further added between the power source 10 and the LED light source device 24 to convert the AC power signal into a DC power signal, so that the LED light source device 24 can be smoothly driven. Commercially available conversion circuits, such as: Ballasts for incandescent lamps, do not support the power signal conversion function, resulting in the general public can not directly replace the incandescent light source of the traditional light source with a new type of LED light source. In addition, simply drive the LED light source The device 24 emits light and cannot fully meet the needs of use, and must have the function of dimming to conform to the user's application in the home or on the stage. Therefore, the rear end of the dimmer 11 as shown in the first figure By connecting a conventional LED dimming circuit 25, the AC signal can be converted into a DC signal, and the LED light source device 24 can be dimmed. In the M381241, the 'traditional LED dimming circuit 25 and the dimmer 11 can form a tradition. The LED device 2 and the conventional LED s peripheral circuit 25 include an analog/digital conversion circuit 21, a pulse width modulation circuit 22, and a pulse width modulation signal control circuit 23. The dimmer 11 of the conventional LED έ illuminator 2 is connected to the AC power source 1 to receive the AC power signal of the AC power source 10, and adjusts the current, voltage or phase of the AC power source to form a dimming signal. The digital conversion circuit 21 is connected to the dimmer π to receive the dimming signal of the dimmer u, and performs analog and digital conversion to form a DC conversion signal. The pulse width modulation circuit 22 is connected to the analog/digital position. The conversion circuit 21 and the pulse width sfl control circuit 23 receive the conversion signal of the analog/digital conversion circuit μ and the pulse width modulation control signal of the pulse width modulation signal control circuit 23 to form a pulse width modulation signal. Finally, the conventional LED light source unit 24 is connected to the pulse width modulation circuit 22 and receives the pulse width modulation signal to cause the LED light to be illuminated. The pulse width modulation circuit 22 generally uses a direct-transform, DC-converted pulse width modulation circuit 22 to receive a DC conversion signal for the reference electrical output of the output conversion signal, and receives the pulse width modulation signal control. The pulse width modulation control signal of circuit 23 serves as a reference duty cycle for the output switching signal. One ^ three _ is shown as the traditional (10) light county set-top device signal two power supply 1G AC power signal through f is sine wave or cosine two: This is a sine wave as an example to illustrate. Please refer to the second picture and the younger f, the dimmer 11 receives the AC power signal of the AC power supply 1 ^ adjusts the dimmer u to generate a dimming signal, so that the 't h can be divided into the adjustment of the AC track No. M381241 Type 'This is an example of a dimmer that adjusts the phase. Therefore, when 11 receives the AC power signal of the parent current source iQ, and generates a sine wave waveform with a tone of 1/4 cycle in the positive half cycle and the negative half cycle. The secret/number (4) switching circuit 21 touches the (four) signal and generates a conversion signal having a direct current through the rectification, saliency, and stabilization of the multiplex/digital conversion circuit 12. The pulse width modulation circuit 22 receives the conversion signal, and the pulse width modulation control signal sent by the upper pulse width modulation signal control circuit 23 generates a -n variable signal. The LED light source device 24 receives the pulse modulation signal to drive the LED light source to illuminate. The pulse width modulation circuit 22 can adjust the voltage level of the pulse width modulation signal or the duty cycle (1) cycle to adjust the illumination of the LED light source device 24 to the 24J dimmer 11 . The conventional dimming circuit 25 can be formed - a conventional coffee I can generate a pulse width modulation signal to drive the LED light source device 仏ς = if the regulator adjusts the conduction angle of the dimmer u to each brand or It is a dimming signal of different specifications of the dimmer, the current value of the current is too small, so that the dimming signal of the current value of the AC/money circuit 21 signal signal is AC/DC to be lower than the conversion of its work. The signal will be unstable' or the current value of the converted signal received by the pulse width adjusting circuit 21 is lower than the pulse width modulation and the threshold value of the path 22, which will make the pulse width modulation circuit 22 "^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Traditionally, DC is used to directly add 22 to nr/, , and ^, which is not the pulse width modulation circuit 22. The conversion of the transformer and the % road have no isolation effect, which will make the traditional LED and coil 'therefore the original 24 is easy to have 7 M381241 leakage problem. [New content] According to an embodiment of the present invention An LED dimming device includes: a dimmer connected to an AC power source for receiving an AC power signal and generating a dimming signal; and a rectifying circuit coupled to the dimmer to receive the dimming signal And rectifying the dimming signal to generate a rectified signal; a matching circuit coupled to the dimmer to receive the rectified signal, and matching the rectified signal to generate a matching signal; a digital conversion circuit connected to the matching circuit to receive the matching signal, and to perform signal conversion on the matching signal to form a conversion signal having a positive half cycle sine wave; and a pulse width modulation circuit, The analog/digital conversion circuit is connected to receive the conversion signal, generate a modulation signal according to the conversion signal, and send the modulation signal to an LED light source device The LED light source device is driven to emit light. According to an embodiment of the present invention, an LED dimming circuit includes: a matching circuit connected to a dimmer to receive a dimming signal of the dimmer, and the The dimming signal is converted into a matching signal; a analog/digital conversion circuit is connected to the batch circuit to receive the matching signal, and the matching signal is signal-converted to form a sine wave with a positive half cycle And a pulse width modulation circuit connected to the analog/digital conversion circuit to receive the conversion signal, generate a modulation signal according to the conversion signal, and send the modulation signal to an LED light source device The LED light source device is driven to emit light. The novelty of the present invention proposes a novel concept of the present invention. The mechanism of the present invention is completely different from the known technology, and provides an LED dimming device which can utilize the 8 M381241 conventional dimmer and the novel LED. With the dimming device, the LED light source device can be dimmed to promote industrial upgrading. The above summary, the following detailed description and the accompanying drawings are intended to further illustrate the manner, means and function of the present invention for achieving the intended purpose. Other objects and advantages of the present invention will be set forth in the following description and drawings. [Embodiment] The fourth diagram of Lu is shown as a schematic circuit module of the LED dimming device according to the first embodiment of the present invention. The LED dimming device 3 has a dimmer 11, a rectifying circuit 41, an active matching circuit 42, an analog/digital conversion circuit 21, and a pulse width modulation circuit 43. The dimmer 11 is connected to the AC power source 10 to receive the AC power signal 'and adjusts the current, voltage or phase of the parent stream power signal of the parent power source 10 to form a dimming signal. In this embodiment, the parent flow is changed. The dimming descent 11 of the phase of the power signal is taken as an example. The rectifier circuit 41' is connected to the dimmer 11 to receive the dimming signal, and rectifies the dimming signal to generate a rectified signal. The active matching circuit 42 is connected to the rectifier circuit _41 to receive the rectified signal and perform signal matching on the rectified signal to generate a matching signal. The analog/digital conversion circuit 21 is coupled to the matching circuit 42 for receiving the matching signal and performing digital and analog conversion to form a continuous conversion signal. The pulse width modulation circuit 43 is connected to the analog/digital conversion circuit 21 to receive the conversion signal of the analog/digital conversion circuit 21, and forms a pulse width modulation signal according to the voltage level of the conversion signal and the duty cycle. Finally, the LED dimming device 3 drives the LED light source device 24 by generating the pulse width modulation signal. The rectifier circuit 41 can be integrated with the dimmer 11 or the M381241 can be integrated with the matching circuit 42. Therefore, the matching circuit 42 can receive the rectified dimming signal or directly receive the dimming signal in the matching circuit 42 for rectification. Further, the rectifier circuit 41, the matching circuit 42, the analog/digital conversion circuit 21, and the pulse width modulation circuit 43 can be combined into an LED dimming circuit 40. In addition, the dimmer 11 can be a TRIAC or an SCR dimmer. Since the dimmer 11 is a conventional dimmer, it has a large number of brands and different specifications, and even the dimming signals generated by the various dimmers 11 at different conduction angles and their output current values are also different. . Therefore, the dimmer 11 cannot generate a dimming signal having the same specification, so that the conventional LED dimming circuit 25 as shown in the second figure needs to adjust the signal for each dimmer 11 of different specifications, so that the LED can be smoothly adjusted. Light source device 24. Therefore, the first embodiment of the present invention utilizes an active matching circuit 42 to perform full-cycle rectification of the dimming signal according to the change of the dimming signal of the dimmer 11 and, when the dimmer 11 is in a comparison The low conduction angle, for example, when the conduction angle is lower than 20 degrees, the matching circuit 42 will fix the output current, for example, the output current value when the conduction angle is 20 degrees, so that the matching signal has a lowest value. The current value is output, thereby enabling the analog/digital conversion circuit 21 or the pulse width modulation circuit 43 to receive a matching signal having its respective lowest operating current to maintain the analog/digital conversion circuit 21 or pulse width modulation. The variable circuit 43 is in a normal operating state. Since the matching circuit 42 can actively adjust the output current value for the dimming signal generated by any of the dimmers 11, it can be applied to any brand or dimmer 11 of any specification. The 'active matching circuit 42 can be any matching circuit, which is mainly composed of a voltage unit (not shown), a control unit (not shown) and a 10 M381241 combination of a current unit (not shown). The optical signal performs matching and adjustment of the dimming signal, so that the dimmer 11 can output a matching signal with the lowest operating current in all phases and all operating voltages, so that the analog/digital connection with the matching circuit 42 is made. The switching circuit 21 and the pulse width modulation circuit 43 are normally operated, so that the LED light source device 24 can normally adjust its brightness. In addition, according to the first embodiment of the present invention, the pulse width modulation circuit 43 of the LED dimming circuit 40 is an AC/DC pulse width modulation circuit 43 which can be advantageously used by the analog/digital conversion circuit 21. The generated conversion signal can generate a relative pulse width modulation signal, that is, the pulse width modulation circuit 43 can be used as a reference duty cycle of the pulse width modulation signal according to the period of the conversion signal, and according to the waveform of the conversion signal. The change is used as the reference output voltage of the pulse width modulation signal. Moreover, since the AC-switched DC pulse width modulation circuit 43 has a transformer circuit circuit 'and thus has an isolated function', that is, the signal change and the back end of the front end of the pulse modulation circuit 43 The pulse width modulation signal can have an isolation effect to prevent leakage of the LED light source device 24.
值得一提的是，根據本新型之第一實施例，LED調光 電路40之脈寬調變電路43輸出脈寬調變訊號為一高電壓 且定電流之脈寬調變訊號，脈寬調變訊號之輸出電壓高於 . LED光源裝置24之驅動電壓，可將LED光源裝置24之LED . 發光二極體完全啟動，並且脈寬調變訊號輸出一定電流， 可使得LED光源裝置24之LED發光二極體具有一穩定的發 光頻譜。因此根據本新型第一實施例之調光裝置40可具有 穩定驅動LED光源裝置24的功能，並且可避免因電流不穩 定造成LED光源之發光頻譜的漂移。 第五圖所示為根據本新型第一實施例之LED調光裝置 的訊號示意圖。 M381241 又仙電源10之交流電源訊號一般為正弦波或是餘弦 波^於本實施例以正弦波為例。請同時參考第四圖及第五 ，周光器11連接至父流電源、1〇以接收一交流電源訊號， 二對此Μ㈣㈣進行相位_整，於本實施例之調光 裔】】以相位調整之調光器U為例，以產生一且有1/4週 半彻及負半週期的·波波形之調絲號。整流 ία ^接至调先器11 ’接收調光訊號並進行訊號整流， 以付、半週期的汛號轉換成正半週期的訊號以產生一整 流訊號。主動式的匹配電路42連接至整流電路41，接收 整流訊號，並進行全波整流，以產生一具有正半週期正弦 波的波形，且此匹配訊號具有與整流訊號相同之工作頻率 =及相1之最大電壓輪出準位。另外’此匹配訊號具有一 最=的輪出士電流值’例如：於調光器11調整至低於20度 的導迷角時’則輸出電流值岐於2G度的導通角之電流 值’因4此Σ保障後端之類比/數位轉換電路21及脈寬調變 二得以接收—具有最低工作電流值之匹配訊號或是 類比/數位轉換電路2丨連接至主動式的匹配電 以及整流元透=部之變壓元件(未顯示) 期的正弦处处（/未），以輸出一具有1 / 2週期於正半週 相同的之轉換訊號，此㈣訊號與匹配訊號具有 ==最大的輸出電壓準位。脈寬調變電路43 Ϊ訊號換職，並根據轉 !號：肢寬調變訊號具有-高電壓以及—恆周； 流，其中高電懕兔古 f疋輸出電 定輸出電流可稃定=ED光源政置24之操作電壓，且悝 疋LED光源裝置24所產生之發光色度，以 12 M381241 避免LED光源裝置24之發光頻譜漂移。 因此，根據本新型第一實施例之LED調光裝置3，當 調光器11為最大導通角度時，則調光器11之調光訊號為 一完整的正弦波波形，整流電路則將調光訊號的負半週期 轉換為正半週期以產生一整流訊號，匹配電路42以及類比 /數位轉換電路21則產生與調光訊號相同波形的匹配訊號 以及轉換訊號，最後於脈寬調變電路43所輸出之脈寬調變 訊號之波形則接近一直流輸出電壓。反之，若是調光器11 所輸出之調光訊號的導通角度變小，則第五圖所示之調光 訊號之波形佔正弦波波形的比例則會變小，相對的，整流 訊號、匹配訊號、轉換訊號的工作週期的比例也會隨之變 小，則脈寬調變訊號的工作週期的比例也會隨之變小，其 中，匹配訊號以及轉換訊號則會維持於一具有1/2週期於 正半週期的正弦波波形。 第六圖所示為根據本新型第二實施例之LED調光裝置 的系統模組示意圖。 第七圖所示為根據本新型第二實施例之LED調光裝置 的訊號示意圖。 根據本新型第二實施例之LED調光裝置4，其主要之 元件以及其連接關係皆與第四圖所示之LED調光裝置3大 致相同，LED調光裝置4更包括一恆流驅動電路61，與脈 寬調變電路43以及LED光源裝置24連接，即是，LED調 光電路60包含整流電路41、匹配電路42、類比/數位轉換 電路21、脈寬調變電路43以及恆流驅動電路61。恆流驅 動電路61為一種可輸出一恆定電流的電路，其可根據脈寬 調變電路43之脈寬調變訊號進行如第七圖所示之怪流驅 M381241 動訊號之輸出電流值的調整。即是，脈寬調變訊號之工作 週期比例高時，恆流驅動電路61輸出一具有較高輸出電流 值之恆流驅動訊號，脈寬調變訊號之工作週期比例低時， 恆流驅動電路61輸出一具有較低輸出電流值之恆流驅動 訊號。因此，可透過此恆流驅動電路61根據脈寬調變訊號 之工作週期比例輸出不同的電流值，則LED光源裝置24 則可根據此恆流驅動訊號之不同的輸出電流值調整其發光 亮度。由於，此恆流驅動電路61輸出如第七圖所示之恆流 驅動訊號為具有一定電流以及一高電壓之訊號，且恆流驅 動訊號之高電壓高於LED光源裝置24之操作電壓，因此可 以避免LED光源裝置24之發光頻譜的漂移，並且可避免因 脈寬調變電路43之脈寬調變訊號之訊號切換造成的閃爍 問題。亦即，根據本新型第二實施例之LED調光裝置4， 特別適用於提供近距離光源之LED光源裝置24，例如：檯 燈等，即可避免因脈寬調變電路43之脈寬調變訊號所造成 的閃爍，以使使用者使用此光源時，不會因LED光源的閃 爍造成眼睛的不適。 惟，以上所述，僅為本新型的具體貫施例之詳細說明 及圖式而已，並非用以限制本新型，本新型之所有範圍應 以下述之申請專利範圍為準，任何熟悉該項技藝者在本新 型之領域内，可輕易思及之變化或修飾皆可涵蓋在以下本 案所界定之專利範圍。 【圖式簡單說明】 第一圖所示為傳統光源裝置之調光裝置的模組示意 圖。 14 M381241 第二圖所示為傳統之LED光源裝置之調光裝置的模組 示意圖。 第三圖所示為傳統之LED光源裝置之調光裝置的訊號 示意圖。 第四圖所示為根據本新型第一實施例之LED調光裝置 的系統模組示意圖。 第五圖所示為根據本新型第一實施例之LED調光裝置 的訊號示意圖。 第六圖所示為根據本新型第二實施例之LED調光裝置 的系統模組示意圖。 第七圖所示為根據本新型第二實施例之LED調光裝置 的訊號示意圖。 【主要元件符號說明】 1 :傳統調光裝置 2 :傳統LED調光裝置 3、4 : LED調光裝置 10 :交流電源 11 :調光器 12 :傳統光源裝置 21 :類比/數位轉換電路 22、43 :脈寬調變電路 23 :脈寬調變訊號控制電路 24 : LED光源裝置 25 :傳統LED調光電路 15 M381241 40、60 : LED調光電路 41 :整流電路 42 :匹配電路 61 :恆流驅動電路It is to be noted that, according to the first embodiment of the present invention, the pulse width modulation circuit 43 of the LED dimming circuit 40 outputs a pulse width modulation signal as a high voltage and a constant current pulse width modulation signal, and a pulse width. The output voltage of the modulation signal is higher than the driving voltage of the LED light source device 24, and the LED of the LED light source device 24 can be completely activated, and the pulse width modulation signal outputs a certain current, so that the LED light source device 24 can be The LED light-emitting diode has a stable light-emitting spectrum. Therefore, the dimming device 40 according to the first embodiment of the present invention can have a function of stably driving the LED light source device 24, and can avoid drift of the light-emitting spectrum of the LED light source due to current instability. Fig. 5 is a schematic diagram showing the signal of the LED dimming device according to the first embodiment of the present invention. M381241 The power supply signal of the power supply 10 is generally a sine wave or a cosine wave. In this embodiment, a sine wave is taken as an example. Please refer to the fourth picture and the fifth at the same time, the illuminator 11 is connected to the parent flow power supply, 1 〇 to receive an AC power signal, and the second (4) (4) phase _ whole, in the embodiment of the dimming 】] phase adjustment The dimmer U is taken as an example to generate a tuning number of a wave waveform having a quarter-half and a half-period. The rectification ία ^ is connected to the modulator 11 ′ to receive the dimming signal and perform signal rectification to convert the half-cycle apostrophe into a positive half-cycle signal to generate a rectified signal. The active matching circuit 42 is connected to the rectifying circuit 41, receives the rectified signal, and performs full-wave rectification to generate a waveform having a positive half-cycle sine wave, and the matching signal has the same operating frequency as the rectified signal = and phase 1 The maximum voltage turns out the level. In addition, 'this matching signal has a maximum = round current value', for example, when the dimmer 11 is adjusted to a guide angle lower than 20 degrees, 'the current value of the output current value is lower than the conduction angle of 2G degrees' Therefore, the analog/digital conversion circuit 21 and the pulse width modulation circuit 2 of the back end are guaranteed to be received - the matching signal having the lowest operating current value or the analog/digital conversion circuit 2 is connected to the active matching power and the rectifying element The sinusoidal (/not) period of the transformer component (not shown) is outputted with a conversion signal having the same 1/2 cycle in the positive half cycle, and the (four) signal and the matching signal have the output of == maximum. Voltage level. Pulse width modulation circuit 43 Ϊ signal change, and according to the turn! No.: limb width modulation signal has - high voltage and - constant cycle; flow, which high electric 懕 rabbit ancient f 疋 output electric output current can be determined = ED source manages the operating voltage of 24, and the illuminance chromaticity produced by the LED light source device 24 avoids the drift of the illumination spectrum of the LED light source device 24 at 12 M381241. Therefore, according to the LED dimming device 3 of the first embodiment of the present invention, when the dimmer 11 is at the maximum conduction angle, the dimming signal of the dimmer 11 is a complete sine wave waveform, and the rectifier circuit dims the light. The negative half cycle of the signal is converted into a positive half cycle to generate a rectified signal, and the matching circuit 42 and the analog/digital conversion circuit 21 generate a matching signal and a conversion signal of the same waveform as the dimming signal, and finally to the pulse width modulation circuit 43. The waveform of the output pulse width modulation signal is close to the DC output voltage. On the other hand, if the conduction angle of the dimming signal outputted by the dimmer 11 becomes smaller, the ratio of the waveform of the dimming signal shown in the fifth figure to the sinusoidal waveform becomes smaller, and the rectified signal and the matching signal are opposite. The proportion of the duty cycle of the conversion signal will also become smaller, and the proportion of the duty cycle of the pulse width modulation signal will also become smaller. The matching signal and the conversion signal will remain at one cycle of 1/2 cycle. A sine wave waveform in a positive half cycle. Fig. 6 is a schematic view showing the system module of the LED dimming device according to the second embodiment of the present invention. Fig. 7 is a schematic diagram showing the signal of the LED dimming device according to the second embodiment of the present invention. According to the LED dimming device 4 of the second embodiment of the present invention, the main components and the connection relationship thereof are substantially the same as those of the LED dimming device 3 shown in the fourth figure, and the LED dimming device 4 further includes a constant current driving circuit. 61, connected to the pulse width modulation circuit 43 and the LED light source device 24, that is, the LED dimming circuit 60 includes a rectifier circuit 41, a matching circuit 42, an analog/digital conversion circuit 21, a pulse width modulation circuit 43, and a constant Stream drive circuit 61. The constant current driving circuit 61 is a circuit capable of outputting a constant current, which can perform the output current value of the motion signal of the strange current driving M381241 according to the pulse width modulation signal of the pulse width modulation circuit 43. Adjustment. That is, when the duty cycle ratio of the pulse width modulation signal is high, the constant current driving circuit 61 outputs a constant current driving signal having a higher output current value, and when the duty ratio of the pulse width modulation signal is low, the constant current driving circuit 61 outputs a constant current drive signal having a lower output current value. Therefore, the constant current driving circuit 61 can output different current values according to the duty cycle ratio of the pulse width modulation signal, and the LED light source device 24 can adjust the light emitting brightness according to different output current values of the constant current driving signal. Since the constant current driving circuit 61 outputs a constant current driving signal as shown in FIG. 7 as a signal having a certain current and a high voltage, and the high voltage of the constant current driving signal is higher than the operating voltage of the LED light source device 24, The drift of the light-emitting spectrum of the LED light source device 24 can be avoided, and the flicker problem caused by the signal switching of the pulse width modulation signal of the pulse width modulation circuit 43 can be avoided. That is, the LED dimming device 4 according to the second embodiment of the present invention is particularly suitable for the LED light source device 24 for providing a close-range light source, such as a desk lamp, etc., thereby avoiding the pulse width modulation of the pulse width modulation circuit 43. The flicker caused by the variable signal, so that when the user uses the light source, there is no eye discomfort caused by the blinking of the LED light source. However, the above description is only for the detailed description and drawings of the specific embodiments of the present invention, and is not intended to limit the present invention. All the scope of the present invention shall be subject to the following patent application, and any one skilled in the art. In the field of the present invention, variations or modifications that can be easily conceived are encompassed by the scope of patents defined in the following. [Simple description of the drawing] The first figure shows a schematic diagram of the module of the dimming device of the conventional light source device. 14 M381241 The second figure shows the module diagram of the dimming device of the traditional LED light source device. The third figure shows the signal diagram of the dimming device of the conventional LED light source device. The fourth figure shows a schematic diagram of a system module of the LED dimming device according to the first embodiment of the present invention. Fig. 5 is a schematic diagram showing the signal of the LED dimming device according to the first embodiment of the present invention. Fig. 6 is a schematic view showing the system module of the LED dimming device according to the second embodiment of the present invention. Fig. 7 is a schematic diagram showing the signal of the LED dimming device according to the second embodiment of the present invention. [Main component symbol description] 1 : Conventional dimming device 2 : Traditional LED dimming device 3 , 4 : LED dimming device 10 : AC power supply 11 : Dimmer 12 : Conventional light source device 21 : Analog/digital conversion circuit 22 , 43: Pulse width modulation circuit 23: Pulse width modulation signal control circuit 24: LED light source device 25: Conventional LED dimming circuit 15 M381241 40, 60: LED dimming circuit 41: Rectifier circuit 42: Matching circuit 61: constant Stream drive circuit