M395327 五、新型說明： 【新型所屬之技術領域】 本創作係相關於一種發光二極體驅動裝置，尤指一種具高功率因 數，並可同時驅動一固態風扇及一發光二極體模組之發光二極體驅 動裝置。 【先前技術】 發光二極體(Light-Emitting Diode，LED)具有省電、壽命長、反 應速度快的優點，再加上其體積小、耐震動、適合量產的特性，故 已逐漸地取代鎢絲燈、螢光燈等傳統光源，成為主要的照明設備。 由於發光一極體的應用越來越廣泛，如何設計穩定及高效率之發光 二極體驅動電路亦為一重要绿題。 通予發光一極體之驅動方式是直接使用一低電壓之直流電源， 若使用-交流電源如家雜觸提供之市電，戦要經過一電力 換電路才能使發光二極體正常運作。目前廣泛制的發光二極體 動電路之-為交換式魏供峨Switehing MQde p_ 般而言，交換式電源供應器之輸人端係使用橋式整流 於入^量之輸人電容。由於該輸人電容僅在輸人電源之電壓接 ❼电源之峰值電壓或大於該輸人電容 才會被充電，因 之時間非常短暫。也就是說，在該輸入電容 立1内’輸入電源必須相對應地提供_脈衝電流以 M395327 / 飽該輸入電容，造成一巨大突波電流(inrush current)，故導致交換式 電源供應器之電源功率因數降低，造成不必要之電能浪費。 另一方面，由於發光二極體為電流驅動元件，其亮度和輪入功率 大約成正比關係。發光二極體發光時所產生的熱能對發光二極體之 發光效率及壽命有直接影響。發光二極體之發光效率會隨著使用時 ，間及:欠數崎低，而過高的細溫度齡造紐光二極體之發光效 率加速衰減’並降低發光二極體之使用壽命。尤其是隨著輸入功率 之^加’雖可提升發光一極體之亮度，其產生之熱能亦急遽增加。 4發光二極體產生之熱能無法有效散出，將會嚴重降低發光二極體 之發光效率及使用壽命。 【新型内容】 本創作係提供-種發光二極體驅練置，藉由―調光電路進行調 $。該發光二極體驅動裝置包含—第一整流電路、一切換電路、一 ►變壓器、-第二整流電路及_二極體。該第一整流電路搞接於該調 ^電路’用來轉換該調光電路輸出之—交流電源以輸出—高電位直 2電源。該切換電_接_第—整流，用來切換該高電位直 H*電源以產生-问電位交流電源。該變壓器包含—次側、一第一二 1及第 人側。該變壓器之一次側輕接於該切換電路，用來 ^收。亥同電位父流電源；該變壓器之第—二次側係用以根據該變壓 • 次側之南電位交流電源產生一超高電位交流電源；該變壓器 V之第二二次側係用以根據該變壓器之一次側之高電位交流電源產生 5 M395327 一低電位交流電源。該第二整流電路耦接於該變壓器之第一二次 側，用來將該超高電位交流電源轉換為一超高電位直流電源，=將 該超兩電位直流電源供應至一固態風扇。該二極體耦接於該變壓器 之第二二次側，用來將該低電位交流電源轉換為一低電位直流電 源，以將該低電位直流電源供應至一發光二極體模組。其中，該固 態風扇係用來幫助該發光二極體散熱。 【實施方式】 請參考第1圖。第1圖為本創作之發光二極體驅動裝置1〇〇之一 實施例之方塊功能圖。如第1圖所示，調光電路500係藉由發光二 極體驅動裝置100驅動發光二極體模組700，換言之，調光電路5〇〇 係經由發光二極體驅動裝置100調整發光二極體模組7〇〇以控制發 光二極體模組700所發出之光線的明暗。發光二極體驅動裝置1〇〇 包含一第一整流電路102、一切換電路1〇4、一變壓器1〇6、一第二 整流電路108及一二極體11〇。第一整流電路1〇2耦接於調光電路 500，用來轉換調光電路500所輸出之一交流電源Pac以輸出一高電 位直流電源PDC H。切換電路1〇4耦接於第一整流電路1〇2，用來切 換咼電位直流電源PDC—H，以產生一高電位交流電源pAc—Η。變壓器 106耦接於切換電路104。變壓器106包含一一次側i〇6a、一第一 —人側106M及一第二二次側i〇6b2。變壓器1〇6之一次側l〇6a輕 接於切換電路104 ’用來接收高電位交流電源pAc η ;變壓器之 第一二次側l〇6bl根據一次側1〇6a之高電位交流電源ρ^Η產生— 超高電位交流電源PAC_UH ;變壓器106之第二二次側l〇6b2根據一 M395327 次側106a之高電位交流電源PAC_H產生一低電位交流電源Pac ^。 第二整流電路108輕接於變壓器1〇6之第一二次侧，用來將 超尚電位交流電源Pac_uh轉換為一超高電位直流電源PdC-^，並將 超尚電位直流電源PDC UH供應至一固態風扇6〇〇。二極體U〇耗接 於變壓器106之第二二次側106b2，用來將低電位交流電源Pacl 轉換為一低電位直流電源PDC_L，以將低電位直流電源Pdc_l供應至 發光二極體模組700。 於本創作之一實施例中’調光電路500可包含一雙向矽控整流器 (TRIAC) ’切換電路1〇4可包含一半橋(haifbridge)切換電路、一全 橋(ftallbridge)切換電路或一反驰式(fjyback)切換電路，變壓器 可包含一反驰式變壓器，第一整流電路1〇2可包含一橋式整流電 路。第一整流電路108可包含一兼具整流及濾波功能之倍壓器 (voltage multiplier);倍壓器能將輸出之電壓提高至輪入之 峰值電壓之一倍數。舉例來說，第二整流電路1〇8可為二倍壓 1 —倍壓器、或者是四倍壓器等，但不以此為限，舉凡任 何巴變壓态1〇6之輸出之電壓（如超高電位交流電源 之電壓)提升至其輸入之峰值電麼（如高電位交流電源Pac_h之 峰值電壓）的某一倍數的電路皆可用以實施第二整流電路 108。 • 明參考第2圖。第2圖為本創作之發光二極體驅動裝置1〇〇運作 i 4不同元件所產生之波形圖。發光二極體驅動裝置100經由調光電 7 M395327 路500接收-交流電源Ps(如家用插頭所提供之市電），而調光電路 5〇〇可改變輸入至發光二極體驅動裝置觸之交流電源Ps之—導通 角(fire angle) ’以產生父流電源pAc至第一整流電路脱。第—整流 電路將交流電源Pac之波形轉為同—極性，以輸㈣電位直^ 電源PDC_H至切換電路104。切換電路104透過對高電位直流電源匕 卩⑽重複進行正向與反向之間的開/關切換(switching)動作以輪出 高頻之高電位交流電源PAC H至變壓器之一次側购。切換電 路1〇4進行開/關動作之切換頻率為預設，舉例來說，切換頻率可為 1服。變壓器廳經由其第一二次側勵i將一次側驗之高頻 之南電位m f源PAe_H升壓為高狀超高電較流錢， 同時經由其第二二次侧1 〇6b2將一次側1 〇6a之高頻之高電位交流電 源PAC_H降壓為高頻之低電位交流電源Pacj^第二整流電路1〇8將 超尚電位交流電源PACJJH轉換為超高電位直流電源Pdc_uh，並供應 至固態風扇600。二極體11〇將低電位交流電源Pac_l轉換為低電位 直流電源PDC L，並供應至發光二極體模組7〇〇。 本創作之發光二極體驅動裝置1〇〇藉由變壓器1〇6同時驅動固態 風扇600及發光二極體模組700。固態風扇6〇〇用來幫助發光二極 體模組700散熱。固態風扇600具有省電、安靜、體積小等多項特 色。另外，固態風扇600並無可動之元件，因此固態風扇6〇〇易於 維濩。由於變壓器106同時提供發光二極體模組7〇〇及固態風扇6〇〇 之電源’因此調光電路500經由發光二極體驅動裝置1〇〇調整發光 二極體模組700之亮度時，固態風扇6〇〇產生的風速亦隨之調整。 M395327 舉例來說，當調光電路500經由發光二極體驅動裝置100調整發光 二極體模組700之亮度發亮時，發光二極體模組700產生較多熱能， 固態風扇600產生的風速對應增加；當調光電路5〇〇經由發光二極 體驅動裝置100調整發光二極體模組700之亮度變暗時，發光二極 體模組700產生較少熱能，固態風扇600產生的風速對應減弱。如 此’固態風扇600產生的風速及發光二極體模組7〇〇之亮度對應產 生之熱能約可成一正比關係，可避免發光二極體模組7〇〇發亮產生 較多熱能時固態風扇600產生的風速不足，或發光二極體模組7〇〇 變暗產生較少熱能時固態風扇600產生的風速過大等情況，亦即本 創作之發光二極體驅動裝置1〇〇可根據發光二極體模組7〇〇產生之 熱能來對應調整固態風扇600產生的風速，有效將發光二極體模組 散熱以提升其發光效率及使用壽命，並可避免消耗不必要之電 能0 當調光電路50〇所接收之電流小於調光電路500所需之維持電流 • (holdingCUITent)時’調光電路500無法正常運作，因此，本創作之 發光二極體驅動裝置100亦可提供電流補償機制，以確保調光電路 500之運作。如第1圖所示，發光二極體驅動裝置100另包含監視 單元121及電流維持電路122。監視單元121耦接於第一整流電路 102，用來監視調光電路5〇〇流向第—整流電路1〇2之電流。電流維 持電路122，耗接於監視單元12卜用來當監視單元121 |視到調光 •電路500流向第-整流電路102之電流小於一予員定值(如小於調光電 a路5〇0所需之維持電流)時，對調光電路5〇〇進行電流補償。於本創 9 M395327 關中，當流向第—整流電路搬之電流大 ^5〇維持電流時，監視單元121控制獅持電路^ 為關閉狀態；當監視單元121監視_光電路_㈣-整、、= 路搬之電流小於調光電路所需之維持電流時，監視單元$ 控制電流維持電路122⑽舰態。當電流'轉電路122為 電流維持電路122是不會對發光二極_練置勘有任够 作用。當電流維持電路122為導通時，電流維持電路122實質^ 與第-整流電路102產生並聯_，故發光二極體軸裝置咖^ 阻抗下降’也就是說’電流、轉電路m料時之發光二極體驅動 裝置100之阻抗會小於電流維持電路122關閉時之發光二極體驅動 裴置100之阻抗。根據歐姆定理(0hm，sLaw)，當電壓為固定時，電 阻變小則導致電流會變大；因此，當電流維持電路122為導通時， 發光二極體驅動裝置100之阻抗下降而高電位直流電源pDc Η對庳 增加，以使調光電路500維持在正常開啟/運作的狀態。 請參考第3圖。第3圖為本創作之發光二極體驅動裝置200之另 一實施例之方塊功能圖。發光二極體驅動裝置200相似於發光二極 體驅動裝置100，不同的是，發光二極體驅動裝置200另包含一淚 波器202及一回授電路204。發光二極體驅動裝置200之其它元件 及運作方式相似於發光二極體驅動裝置1⑻，於此不贅述。濾波器 202 可為一電磁干擾(ElectromagneticDisturbance，ΕΜΙ)濾波器，且耦 接於調光電路500與第一整流電路1 〇2之間，用以消除調光電路5〇〇 輸出之交流電源Pac的電磁干擾。回授電路204搞接於切換電路104 M395327 % ^及發光二極體模組700之間，用以將發光二極體模組700之電流資 朗授至切換電路104，使發光二極體驅動裝置·能對應地控制 發光-極體模組7〇〇之電流。舉例來說，當發光二極體模組7〇〇老 化時其阻抗變小’故流至發光二極體模組·之電流對應增加，因 而加速發光二極體模組700之老化速度。在這種情況下，回授電路 202可將發光一極體模組7〇〇之電流資訊回授至切換電路⑽，以使 發光一極體驅動裝置200對應控制發光二極體模組7〇〇之電流使其 ^不至增加，以減緩發光二極體模組700之老化速度。 綜上所述’本創作之發光二極體驅動裝置可同時驅動固態風扇及 么光一極體模組’並根據發光二極體模組所產生之熱能來對應調整 固態風扇產生栽速’故可有效將發光二極體模组散熱並避免消耗 不必要之電能。本創作之發光二極體驅練置不需要輸人電容來提 供一穩定的直流電源，並可避免輸入電容所造成之突波電流。因此 .本創作之發光二減驅練置具#高神隨，可齡不必要的電 爭能消耗。另外，當利用調光電路來控制發光二極體模組所發出之光 線明暗時，本創作之發光二極體驅動裝置可偵測調光電路所接收之 $流是否小於調光電路所需之維持電流，並在調光電路所接收之電 流小於其所需之維持電流時’對調光電路進行電流補償的動作，以 確保調光電路之正常運作。 . 卩上所述縣本創狀較佳實施例’凡依本_申諝專利範圍 w所做之均等變化與修飾，皆應屬本創作之涵蓋範圍。 巳 11 M395327 【圖式簡單說明】 第1圖為本創作之發光二極體驅動裝置之一實施例之方塊功能圖。 第2圖為本創作第1圖之發光二極體驅動裝置運作時不同元件所產 生之波形圖。 第3圖為本創作之發光二極體驅動裝置之另一實施例之方塊功能 圖。 【主要元件符號說明】 100 、 200 發光二極體驅動裝置 202 濾、波器 204 回授電路 102 第一整流電路 104 切換電路 106 變壓器 106a 一次側 106bl 第一二次側 106b2 第二二次侧 108 第二整流電路 110 二極體 121 監視單元 122 電流維持電路 Ps、Pac 交流電源 12 M395327M395327 V. New description: [New technical field] This creation is related to a light-emitting diode driving device, especially a high power factor, and can simultaneously drive a solid-state fan and a light-emitting diode module. Light-emitting diode drive. [Prior Art] Light-Emitting Diode (LED) has the advantages of power saving, long life and fast response speed. It is gradually replaced by its small size, vibration resistance and mass production. Traditional light sources such as tungsten lamps and fluorescent lamps have become the main lighting devices. Since the application of the light-emitting body is more and more extensive, how to design a stable and high-efficiency light-emitting diode driving circuit is also an important green problem. The driving method for the light-emitting one is to directly use a low-voltage DC power supply. If the AC power supply is used as the power supply provided by the home, it is necessary to pass a power conversion circuit to make the light-emitting diode operate normally. At present, the widely used illuminating diode circuit is the exchange type Switehing MQde p_. Generally speaking, the input end of the switching power supply uses bridge rectifier to input the input capacitance. Since the input capacitor is only charged when the voltage of the input power source is connected to the peak voltage of the power supply or greater than the input capacitance, the time is very short. That is to say, in the input capacitor vertical 1 'input power supply must provide corresponding _ pulse current to M395327 / saturate the input capacitance, causing a huge inrush current, thus causing the power supply of the switching power supply The power factor is reduced, causing unnecessary waste of power. On the other hand, since the light-emitting diode is a current-driven element, its luminance and the wheel-in power are approximately proportional. The thermal energy generated when the light-emitting diode emits light has a direct influence on the luminous efficiency and lifetime of the light-emitting diode. The luminous efficiency of the light-emitting diode will decrease with the use of time and time: the low light temperature, and the light-emitting efficiency of the light-emitting diode is too high, and the lifetime of the light-emitting diode is lowered. In particular, as the input power is increased, the brightness of the light-emitting body can be increased, and the heat generated therefrom is also rapidly increased. 4 The thermal energy generated by the light-emitting diode cannot be effectively dissipated, which will seriously reduce the luminous efficiency and service life of the light-emitting diode. [New content] This creation provides a kind of light-emitting diode drive, which is adjusted by the dimming circuit. The LED driving device comprises a first rectifying circuit, a switching circuit, a ►transformer, a second rectifying circuit and a diode. The first rectifying circuit is coupled to the modulating circuit </ RTI> for converting the output of the dimming circuit to an AC power source for outputting a high potential straight 2 power source. The switching power_connection_first-rectification is used to switch the high-potential direct H* power supply to generate a potential electric power source. The transformer includes a secondary side, a first two 1 and a first side. The primary side of the transformer is lightly connected to the switching circuit for receiving. The same potential secondary power supply; the first-secondary side of the transformer is used to generate an ultra-high potential AC power supply according to the south-potential AC power supply of the transformer/sub-side; the second secondary side of the transformer V is used for A low-potential AC power supply of 5 M395327 is generated according to the high-potential AC power supply on the primary side of the transformer. The second rectifier circuit is coupled to the first secondary side of the transformer for converting the ultra-high potential AC power source into an ultra-high potential DC power source, and supplying the super-potential DC power source to a solid state fan. The diode is coupled to the second secondary side of the transformer for converting the low potential AC power source to a low potential DC power source for supplying the low potential DC power source to a light emitting diode module. The solid state fan is used to help the light emitting diode to dissipate heat. [Embodiment] Please refer to Figure 1. Fig. 1 is a block diagram showing an embodiment of a light-emitting diode driving device of the present invention. As shown in FIG. 1 , the dimming circuit 500 drives the LED module 700 by the LED driving device 100. In other words, the dimming circuit 5 is configured to adjust the LED 2 via the LED driving device 100. The polar body module 7 is configured to control the brightness of the light emitted by the LED module 700. The LED driving device 1A includes a first rectifying circuit 102, a switching circuit 1〇4, a transformer 1〇6, a second rectifying circuit 108, and a diode 11〇. The first rectifier circuit 1〇2 is coupled to the dimming circuit 500 for converting an AC power source Pac outputted by the dimming circuit 500 to output a high-potential DC power source PDC H. The switching circuit 1〇4 is coupled to the first rectifying circuit 1〇2 for switching the zeta potential DC power source PDC-H to generate a high-potential AC power source pAc-Η. The transformer 106 is coupled to the switching circuit 104. The transformer 106 includes a primary side i〇6a, a first-person side 106M and a second secondary side i〇6b2. The primary side l〇6a of the transformer 1〇6 is lightly connected to the switching circuit 104' for receiving the high-potential AC power supply pAc η; the first secondary side of the transformer l〇6bl is based on the high-potential AC power supply of the primary side 1〇6a ρ^ Η Generation - Ultra-high potential AC power supply PAC_UH; The second secondary side of the transformer 106 l 〇 6b2 generates a low-potential AC power supply Pac ^ according to a high-potential AC power source PAC_H of the M395327 secondary side 106a. The second rectifying circuit 108 is lightly connected to the first secondary side of the transformer 1〇6 for converting the excess potential AC power source Pac_uh into an ultra-high potential DC power source PdC-^, and supplying the excess potential DC power source PDC UH To a solid state fan 6 〇〇. The diode U 〇 is connected to the second secondary side 106b2 of the transformer 106 for converting the low potential AC power source Pacl into a low potential DC power source PDC_L to supply the low potential DC power source Pdc_1 to the LED module. 700. In one embodiment of the present invention, the dimming circuit 500 can include a bidirectionally controlled rectifier (TRIAC). The switching circuit 1〇4 can include a half-bridge switching circuit, a full-bridge switching circuit, or a reverse For a fjyback switching circuit, the transformer may include a flyback transformer, and the first rectifier circuit 1〇2 may include a bridge rectifier circuit. The first rectifier circuit 108 can include a voltage multiplier that combines rectification and filtering functions; the voltage doubler can increase the output voltage to a multiple of the peak voltage of the turn-in. For example, the second rectifying circuit 1 〇 8 can be a double voltage 1 - voltage doubler, or a quad voltage doubler, etc., but not limited thereto, and any voltage of the output of the bar voltage change state 1 〇 6 A circuit (such as a voltage of an ultra-high potential AC power source) that is boosted to a certain peak value of its input (such as the peak voltage of the high-potential AC power source Pac_h) can be used to implement the second rectifier circuit 108. • Refer to Figure 2 for details. Fig. 2 is a waveform diagram of the different components of the LED device of the present invention. The LED driving device 100 receives the AC power Ps (such as the commercial power provided by the household plug) via the dimming circuit 7 M395327 500, and the dimming circuit 5〇〇 can change the AC power input to the LED driving device. Ps - fire angle 'to generate the parent current power supply pAc to the first rectifier circuit. The first-rectifying circuit converts the waveform of the AC power source Pac to the same-polarity to input the (four) potential to the power supply PDC_H to the switching circuit 104. The switching circuit 104 repeats the on/off switching operation between the forward and reverse directions for the high-potential DC power supply 匕 卩 (10) to rotate the high-frequency high-potential AC power source PAC H to the primary side of the transformer. The switching frequency of the switching circuit 1〇4 for the on/off operation is preset. For example, the switching frequency can be 1 service. The transformer hall boosts the high frequency south potential mf source PAe_H of the primary side test to a high super high power via the first secondary side excitation i, and simultaneously passes the second secondary side 1 〇 6b2 to the primary side. 1 〇6a high-frequency high-potential AC power supply PAC_H step-down to high-frequency low-potential AC power supply Pacj^ second rectifier circuit 1〇8 converts excess potential AC power supply PACJJH to ultra-high potential DC power supply Pdc_uh, and supplies to Solid state fan 600. The diode 11 turns the low-potential AC power source Pac_l into a low-potential DC power source PDC L and supplies it to the light-emitting diode module 7〇〇. The light-emitting diode driving device 1 of the present invention simultaneously drives the solid-state fan 600 and the light-emitting diode module 700 by the transformers 1〇6. The solid state fan 6 is used to help the light emitting diode module 700 to dissipate heat. The solid state fan 600 has a plurality of features such as power saving, quietness, and small size. In addition, the solid state fan 600 has no movable components, so the solid state fan 6 is easy to maintain. Since the transformer 106 simultaneously supplies the power of the LED module 7 and the solid state fan 6', the dimming circuit 500 adjusts the brightness of the LED module 700 via the LED driver 1 . The wind speed generated by the solid state fan 6〇〇 is also adjusted accordingly. For example, when the dimming circuit 500 adjusts the brightness of the LED module 700 through the LED device 100, the LED module 700 generates more heat, and the wind speed generated by the solid fan 600 is generated. When the dimming circuit 5 is adjusted to dim the brightness of the LED module 700 via the LED driving device 100, the LED module 700 generates less heat, and the wind speed generated by the solid state fan 600 The corresponding weakening. Thus, the wind speed generated by the solid-state fan 600 and the thermal energy generated by the brightness of the LED module 7 can be proportional to each other, and the solid-state fan can be avoided when the LED module 7 is illuminated to generate more heat. The wind speed generated by the 600 is insufficient, or the wind speed of the solid-state fan 600 is too large when the light-emitting diode module 7 is darkened to generate less heat, that is, the light-emitting diode driving device of the present invention can be illuminated according to the light. The heat generated by the diode module 7〇〇 adjusts the wind speed generated by the solid-state fan 600, effectively dissipates the light-emitting diode module to improve its luminous efficiency and service life, and avoids consuming unnecessary power. The dimming circuit 500 cannot operate normally when the current received by the optical circuit 50 is less than the holding current required by the dimming circuit 500. (Here, the LED driving device 100 of the present invention can also provide a current compensation mechanism. To ensure the operation of the dimming circuit 500. As shown in Fig. 1, the light-emitting diode driving device 100 further includes a monitoring unit 121 and a current maintaining circuit 122. The monitoring unit 121 is coupled to the first rectifying circuit 102 for monitoring the current flowing from the dimming circuit 5 to the first rectifying circuit 1〇2. The current maintaining circuit 122 is used by the monitoring unit 12 to be used by the monitoring unit 121 to see that the current of the dimming circuit 500 flowing to the first rectifier circuit 102 is less than a predetermined value (for example, less than the modulating photoelectric path 5 〇 0 When the required holding current is), current compensation is performed on the dimming circuit 5A. In the present invention, when the current flowing to the first rectifier circuit is large, the monitoring unit 121 controls the lion holding circuit to be in the off state; when the monitoring unit 121 monitors the _optical circuit _ (four) - the whole, When the current of the road is less than the holding current required by the dimming circuit, the monitoring unit $ controls the current maintaining circuit 122 (10). When the current 'turn circuit 122' is the current maintaining circuit 122, it does not have any effect on the light-emitting diode. When the current maintaining circuit 122 is turned on, the current maintaining circuit 122 substantially generates a parallel connection with the first rectifier circuit 102, so that the light-emitting diode device reduces the impedance, that is, the current, and the light when the circuit is turned. The impedance of the diode driving device 100 may be smaller than the impedance of the LED driving device 100 when the current maintaining circuit 122 is turned off. According to the ohm theorem (0hm, sLaw), when the voltage is fixed, the resistance becomes smaller, resulting in a larger current; therefore, when the current maintaining circuit 122 is turned on, the impedance of the LED driving device 100 drops and the high potential DC The power supply pDc Η is increased to maintain the dimming circuit 500 in a normally open/operating state. Please refer to Figure 3. Fig. 3 is a block diagram showing another embodiment of the light-emitting diode driving device 200 of the present invention. The LED driver 200 is similar to the LED driver 100, except that the LED driver 200 further includes a tear 202 and a feedback circuit 204. The other components and operation modes of the LED driving device 200 are similar to those of the LED driving device 1 (8), and will not be described herein. The filter 202 can be an electromagnetic interference (ΕΜΙ) filter, and is coupled between the dimming circuit 500 and the first rectifying circuit 1 〇 2 to eliminate the AC power Pac output by the dimming circuit 5 〇〇 Electromagnetic interference. The feedback circuit 204 is connected between the switching circuit 104 M395327 % ^ and the LED module 700 for transferring the current of the LED module 700 to the switching circuit 104 to enable the LED driving device · The current of the illuminator-pole module 7〇〇 can be controlled correspondingly. For example, when the light-emitting diode module 7 is aging, its impedance becomes small. Therefore, the current flowing to the light-emitting diode module is correspondingly increased, thereby accelerating the aging speed of the light-emitting diode module 700. In this case, the feedback circuit 202 can feed back the current information of the light-emitting diode module 7 to the switching circuit (10), so that the light-emitting body driving device 200 correspondingly controls the light-emitting diode module 7〇. The current of the crucible is such that it does not increase to slow the aging speed of the LED module 700. In summary, the 'light-emitting diode driving device of the present invention can simultaneously drive the solid-state fan and the light-emitting diode module' and adjust the solid-state fan to generate the speed according to the heat energy generated by the light-emitting diode module. Effectively dissipate the LED module and avoid consuming unnecessary power. The light-emitting diode of the present invention does not require input capacitors to provide a stable DC power supply, and can avoid the surge current caused by the input capacitance. Therefore, the creation of the illuminating two reduction drive set up #高神随, the age of unnecessary electricity can be consumed. In addition, when the dimming circuit is used to control the brightness of the light emitted by the LED module, the LED driving device of the present invention can detect whether the current received by the dimming circuit is smaller than that required by the dimming circuit. Maintain current and perform current compensation on the dimming circuit when the current received by the dimming circuit is less than its required holding current to ensure proper operation of the dimming circuit. The preferred embodiment of the above-mentioned county-level creations, the equivalent changes and modifications made by the scope of this patent, should be covered by this creation.巳 11 M395327 [Simple description of the diagram] Fig. 1 is a block diagram of an embodiment of the LED driving device of the present invention. Fig. 2 is a waveform diagram of different components generated when the light-emitting diode driving device of Fig. 1 is operated. Fig. 3 is a block diagram showing another embodiment of the light-emitting diode driving device of the present invention. [Description of main component symbols] 100, 200 LED driver 202 Filter, waver 204 Feedback circuit 102 First rectifier circuit 104 Switching circuit 106 Transformer 106a Primary side 106bl First secondary side 106b2 Second secondary side 108 Second rectifier circuit 110 diode 121 monitoring unit 122 current maintaining circuit Ps, Pac AC power supply 12 M395327
Pdc_h 高電位直流電源 Pac_h 高電位交流電源 Pac_uh 超高電位交流電源 P DC_UH 超1¾電位直流電源 Pac_l 低電位交流電源 PdC—L 低電位直流電源 500 調光電路 600 固態風扇 700 發光二極體模組Pdc_h High potential DC power supply Pac_h High potential AC power supply Pac_uh Ultra high potential AC power supply P DC_UH Super 13⁄4 potential DC power supply Pac_l Low potential AC power supply PdC-L Low potential DC power supply 500 Dimming circuit 600 Solid state fan 700 Light-emitting diode module