M438781 五、新型說明： 【新型所屬之技術領域】 本創作係屬於發光二極體（Ught-Emitting Di〇de， LED )驅動電路之技術領域，特別是關於一種以交流電 •壓n〇伏特（V)或220V為電源電壓之定功率發光:極 - 體驅動裝置。 【先前技術】 鲁 自LED以其低耗電及高效能等特性襲捲照明市場 後:如何控制LED燈具之照明亮度、工作效率或使用壽 °P等慑然成為各廠商致力研究之目標。而目前，燈 具之驅動裝置係多採用定電流之電路設計架構，如圖工 所示，習知之該定電流LED驅動電路i係使至少一 LED 組2串接一電晶體丨〇及一感測電阻丨丨，該感測電阻" 檢測該LED組2之工作電流1而於兩端形成壓降並反饋 至一比較器12。接著，該比較器12比較該感測電阻丄】 φ所反饋之壓降及一基準電壓，當該基準電壓大於該壓降 時，該比較器1 2輸出一高準位訊號，反之則為—低準位 訊號’以導通或截止該電晶體10而調整脈波寬度調變 (Pulse Width Modulation，PWM)訊號之空佔比，使調 整輸出之驅動電壓大小，維持該LED組2之工作電流工 於一恆定狀態。 然而，上述該定電流led驅動電路1雖適用於80 〜2 60伏特市電而方便使用，但為檢測工作電流的變化 蕙以即時調整驅動電壓而設置之電路元件，諸如pWM 晶片、充放電電容及電感等將使該定電流LED驅動電路 M438781 之電路複雜度增加，造成生產成本高及產品體積大， 上述μ片、電容及電感等電路元件將增加虛功耗而降 低整體工作效率。再者，隨著電子產品微型化的趨勢， 電路複雜度高將使LED燈具因電路元件叢聚而難以散 熱’縮短使用壽命。 容 内 型 新 有鑑於習知技藝之問題，本創作之目的在於提供一 種定功率發光二極體驅動裝置，以降低虛功耗而提升〕 作效率，且增加使用壽命。 為達上述目的，本創作之定功率發光二極體驅動弟 置使用交流電壓110v或220 乂之一電源驅動一第一每 光二極體組及一第二發光二極體組’且該第一發光二相 體組及該第二發光二極體組係分別由34〜36顆led碎 接構成。該定功率發光二極體驅動裝置包含一檢測右 組、-開關模組及一電流控制模，组。該檢測模組係電相 連接該電源，接收該電源之交流電壓並分壓形成一檢須 值，且該檢測模組比較該檢測值與—預設值，當該檢須 值小於該預設值時，該檢測模組輸出—並聯訊號；當驾 檢測值大於該預設值時，該檢測模組輸出一串聯訊號。 該開關模組設有一第一開關單元及—第二開關單元：爲 第-開關單元耦接該檢測模組及該第二發光二極體組； 該第二開關單元耦接該第一開關單元及該第一發光二極 體組，當該開關模組接收該並聯訊號時，㈣ ： 元及該第二開關單元係分別導通而使該第一發 組並聯該第二發光二極體組，且 一參^ 且落開關模組輸出一低壓 訊號；當該開關模組接收該串聯訊號時，該第一—開 M438781 元及該第二開關單元係分別截止而使該 组串聯該第二發光二極體組， 二「：光二極體 邻缺 η 幵]關換紐·輸出一 π厥 第：㈣：該電流控制模組係電性連接該開關模組：該 模組具有—第：極體組’該電流控制 另弟—開關早兀及一阻抗單，告 ::二：收該低訊號時’該第三開關單元通：= 流二壓工作電流；當該電 ::阻抗阻值增加’以形成該第二工作電流， 便該第一工作電流大於該第二工作電流。 體dfn’該電流控制模組具有—Ν型金氧半場效電晶 s)及一三端可調整穩壓器，該NM〇s之閘極 :㈣該三端可調整穩壓器之陽極端“η·)，且串接 =_電阻後輕接其没極；該NM〇s極搞接該第二 :二二極體組及該第二開關單元；該NM〇s之源極耦接 §細可°周整穩壓器之參考端（Reference )及一第二電 阻’〃同時耦接該第三開關單元後串接一第三電阻，以藉 i第=電阻及該第三電阻形成該阻抗單元，又當該電流 ^制柄組接收該低壓訊號時，該第三開關單元係導通而 〇第一電阻並聯該第三電阻。如此，視該電源之電壓 〇 改變該第—發光二極體組與該第二發光二極體組之 ，、並聯方式，同時調整該阻抗單元之阻值以形成不同大 之工作電流，即可使本創作具有雙電壓定功率之工作 特性。 甘 6 '、 ，該第一發光二極體組透過一高壓二極體串接 該第二路 T 汉 ^ 一 光二極體組。該檢測模組係設有一整流單元、 5 M438781M438781 V. New Description: [New Technology Field] This creation belongs to the technical field of Ught-Emitting Di〇de (LED) drive circuit, especially regarding AC voltage and voltage (V) ) or 220V is the power of the power supply voltage: pole-body drive. [Prior Art] Luzhao LED has swept the lighting market with its low power consumption and high efficiency. How to control the illumination brightness, work efficiency or use life of LED lamps has become the goal of various manufacturers. At present, the driving device of the lamp adopts a circuit design structure of a constant current, as shown in the figure, the conventional current LED driving circuit i is such that at least one LED group 2 is connected in series with a transistor and a sensing The resistance 丨丨, the sense resistor " detects the operating current 1 of the LED group 2 and forms a voltage drop across the two ends and feeds back to a comparator 12. Then, the comparator 12 compares the voltage drop fed back by the sensing resistor φ φ with a reference voltage. When the reference voltage is greater than the voltage drop, the comparator 12 outputs a high level signal, and vice versa. The low level signal 'adjusts the space ratio of the Pulse Width Modulation (PWM) signal by turning on or off the transistor 10, so as to adjust the driving voltage of the output to maintain the working current of the LED group 2. In a constant state. However, the above-mentioned constant current LED driving circuit 1 is suitable for use in the power supply of 80 to 2 60 volts, but is a circuit component such as a pWM chip, a charge and discharge capacitor, and a circuit element for detecting a change in operating current and adjusting the driving voltage in real time. Inductance and the like will increase the circuit complexity of the constant current LED driving circuit M438781, resulting in high production cost and large product volume. The above-mentioned circuit components such as μ chip, capacitor and inductor will increase the virtual power consumption and reduce the overall working efficiency. Furthermore, with the trend toward miniaturization of electronic products, high circuit complexity will make it difficult for LED lamps to dissipate heat due to clustering of circuit components to shorten the service life. Into the new type In view of the problems of the prior art, the purpose of this creation is to provide a constant power LED driver to reduce the virtual power consumption and improve the efficiency and increase the service life. In order to achieve the above purpose, the power-emitting diode driving device of the present invention uses a power source of 110V or 220 交流 to drive a first light-emitting diode group and a second light-emitting diode group' and the first The light-emitting two-phase body group and the second light-emitting diode group are respectively composed of 34 to 36 LED pieces. The constant power LED driving device comprises a detection right group, a switch module and a current control module. The detecting module is electrically connected to the power source, receives the AC voltage of the power source and divides the voltage to form a check value, and the detecting module compares the detected value with a preset value, when the checking value is less than the preset When the value is, the detection module outputs a parallel signal; when the driving detection value is greater than the preset value, the detection module outputs a serial signal. The switch module is provided with a first switch unit and a second switch unit: the first switch unit is coupled to the detection module and the second LED group; the second switch unit is coupled to the first switch unit And the first LED group, when the switch module receives the parallel signal, (4): the element and the second switch unit are respectively turned on to connect the first group to the second group of LEDs. And the switch module outputs a low voltage signal; when the switch module receives the serial signal, the first-open M438781 element and the second switch unit are respectively cut off to make the group connect the second light Diode group, two ": photodiode neighboring η 幵 关] switching nucleus · output π 厥: (4): The current control module is electrically connected to the switch module: the module has - Body group 'The current control is another brother--switch early and one impedance single, tell:: 2: When the low signal is received, the third switching unit is connected: = current two-voltage working current; when the electricity:: impedance resistance Adding 'to form the second working current, the first working current is greater than The second working current. The body dfn' the current control module has a - Ν type of gold-oxygen half-effect transistor s) and a three-terminal adjustable regulator, the gate of the NM 〇s: (d) the three ends can be adjusted The anode end of the pressure device is "η·), and the series connection = _ resistance is followed by the light pole; the NM 〇 s pole is connected to the second: the diode set and the second switch unit; the NM〇s The source is coupled to the reference end of the voltage regulator and a second resistor '〃 is coupled to the third switch unit and is connected in series with a third resistor to borrow the i=resistance and The third resistor forms the impedance unit. When the current handle group receives the low voltage signal, the third switching unit is turned on and the first resistor is connected in parallel with the third resistor. In this way, depending on the voltage of the power source, the first light-emitting diode group and the second light-emitting diode group are changed in parallel, and the resistance value of the impedance unit is adjusted to form different working currents. This creation has the working characteristics of dual voltage constant power. Gan 6 ', the first light-emitting diode group is connected in series with the second channel T-han-photodiode through a high voltage diode. The detection module is provided with a rectifying unit, 5 M438781
一分I單+ R 分壓》_ 檢測單元，該整流單元耦接該電源及該， 二，=兀，該分壓單元透過一延遲單元耦接該檢測單 二該铋測單兀耦接該第一開關單元。該檢測單元係 稃壓。。：可調整穩壓器’且該預設值即為該三端可調整 部介於135〜145V間之一基準值。並且’該第 光^::兀、該第二開關單元及該第三開關單元係為- R-ym1!0!! C〇UPler。)。、一固態繼電器（S〇lid state 光繼電器（Phot〇 Relay-SSR MOSFET Output)或一場效雷a截，u FET)。 ％ 忒電明體（Field Effect Transist〇r， =所述，本創作之定功率發光二極體驅動裳置於 :二、之該電源電塵時，係以該關開模組據該電源電 槿，相二而？：發光二極體組之串並聯之電路設計架 力1知才木用脈波寬度調變之定電流驅動電路芊 :且”有相對簡單之電路而可縮小應用裝置之體：： 糾你透過該第三開關單元調整該阻抗單元之阻 制：作電流大小的方式，相較於利用電容充放電或電： 磁感效應調整電流大小之設計架構係具有二 及可降低虛功耗而提升工作效率，並增加使用壽：度 【實施方式】 解本創作之内容，謹以下 為使貝審查委員能清楚了 列說明搭配圖式，敬請參閱。 請參閱第2〜4A'5A圖， 之方塊圖、電路圖、於110V 於220V電源電壓之作動示意 發光二極體驅動裝置3係於交 其係為本創作較佳實施例 電源電壓之作動示意圖及 圖。如圖所示，該定功率 流電壓H0V或22OV之一 M438781 電源3〇供電下驅動-第一發光二極體組34 光二極體組35,且該第一發光二極體組“及該: 光二極體組35係分別由34〜36顆1^〇串接^ 功率發光二極體驅動裝置3包含 ;;： 模組32及-電流控制模組33。該 ；"31 1關 檢則杈組3 1電性诖蛀 該電源30,並設有一整流單元31〇、 电^連接 一檢測單元312。該開關模組32 U及 312,^ ^ ^ u ^墙 电注連接該檢測模組 321且令笛卩 開關單凡320及—第二開關單元 5而^ 單元320麵接該第二發光二極體組 :’而：第二開關單元321耦接該第一發光二 3〇該電流控龍組33電性連接該開關模組32，具有 -第二開關單元33〇及—阻抗單元331、一 N刪如 =三端可調整穩壓器334，該卿S 332之閘極係麵 接該三端可調整穩壓器334之陽極端，且串接一第一電 阻333後耗接其及極。③NM〇s⑴之及極耗接該第二 發光二極體組35及該第二開關單元321。該NMOS332 之源極耦接該三端可調整穩壓器3 34之參考端及一第二 電阻33 10 ’同時耦接該第三開關單元33〇後串接一第三 電阻3311 ’如此’該第二電阻331〇及該第三電阻33ιι 即形成該阻抗單元33 i。 該整單元3 1 〇為橋式全波整流電路，耦接該電源 3〇以整流該電源3〇電壓。該分壓單元3丨丨係由兩電阻 串接構成，耦接該整流單元31〇以分壓該電源3〇電壓形 成一檢測值’且該分壓單元311透過一延遲單元311〇 耗接該檢測單元312’該延遲單元311〇可為熱敏電阻 (Nagative Temperature c〇efficience，NTC )而形成緩啟 M438781 動之功效，以避免本創作接通該電源3〇瞬間產生突波而 損毁電路》該檢測單元312可為一三端可調整穩=器， 其參考端耦接於兩電阻間，而其陽極端耦接該第一開關 單元320,以於接收該檢測值後比較其内部135〜i45v 之一基準值與該檢測值，若該檢測值小於該基準值，表 示該電源30為11 0V，此時，該檢測模組3丨2截止並輸 出一並聯訊號。反之，若該檢測值大於該基準值，則該 電源30為220V且該檢測模組3丨導通而輸出一争聯訊 號。 並且，當該開關模組32接收該並聯訊號時，該第一 開關單元320及該第二開關單元321係分別導通，使該 第一發光二極體組34及該第二發光二極體組35相互並 聯而各別承載11 0V，如圖4B所示，其係為本創作較佳 實施例於110V電源電壓之作動等效示意圖。此時，該 開關模組32輸出一低壓訊號至該電流控制模組33，以 導通該第三開關單元330而使該第二電阻331〇並聯該第 三電阻3311，縮小該阻抗單元331之阻值，形成一第一 工作電流。 反之’如圖5B所示，其係為本創作較佳實施例於 220V電源電壓之作動等效示意圖’當該開關模組32接 收該串聯訊號時’該第一開關單元32〇及該第二開關單 元321係分別截止，使該第一發光二極體組34及該第二 發光二極體組35相互串聯而共同承載22 0V，且該開關 模組32輸出一高壓訊號至該電流控制模組33，以截止 該第三開關單元3311，此時，該阻抗單元331之阻值即 為該第二電阻3310之阻值，形成該第二工作電流。由於 8 M438781 該第二電阻3310之阻值係大於該第二電阻331〇並聯該 第一電阻3311之阻值’故該第一工作電流大於該第二工 作電流•如此據P = VI原理，即可維持固定功耗。 …順帶-提的是，該第一開關單元32〇、該第二開關 早疋321及該第三開關單元33〇係為—光耦合器一固 態繼電器、—光繼電器或—場效電晶體，且該第-發光 二極體組34係透過一高壓二極體36串接該第二發光二a sub-I single + R partial pressure _ detection unit, the rectifying unit is coupled to the power supply and the second, 兀, the voltage dividing unit is coupled to the detection unit through a delay unit, the detection unit is coupled to the The first switching unit. The detection unit is rolled. . : The regulator can be adjusted' and the preset value is a reference value between the 135 and 145V of the three-terminal adjustable portion. And the first light ^::兀, the second switching unit and the third switching unit are - R-ym1!0!! C〇UPler. ). , a solid state relay (Phot〇 Relay-SSR MOSFET Output) or a power ray a cut, u FET). % Field Effect Transist〇r, = stated that the power LED of the present creation is placed on: 2. The power supply dust of the power supply is based on the power supply. Phase two?: The circuit design of the series and parallel of the LED group is the constant current drive circuit of the pulse width modulation: and the system has a relatively simple circuit to reduce the size of the application device: : Correcting the resistance of the impedance unit through the third switching unit: the way of the current magnitude, compared to the capacitor charging, discharging or electric: the magnetic induction effect to adjust the current size of the design architecture has two and can reduce the virtual work Increase the efficiency of work, and increase the use of life: Degrees [Implementation] Explain the content of this creation. Please refer to the following for the explanation of the matching diagram. Please refer to 2~4A'5A The block diagram, the circuit diagram, and the operation of the 110V power supply voltage of the 220V indicate that the LED driver 3 is the operating diagram of the power supply voltage of the preferred embodiment of the present invention. set One of the current-flow voltage H0V or 22OV M438781 power supply is driven by the power supply - the first light-emitting diode group 34 photodiode group 35, and the first light-emitting diode group "and the light-diode group 35-series respectively From 34 to 36 1 ^ 〇 series ^ power LED driver 3 includes;;: module 32 and - current control module 33. This; " 31 1 check 杈 group 3 1 electrical 诖The power supply 30 is provided with a rectifying unit 31〇, and is electrically connected to a detecting unit 312. The switch module 32 U and 312, ^ ^ ^ u ^ wall electrically connected to the detecting module 321 and the flute switch Wherein the 320 and the second switch unit 5 and the unit 320 are connected to the second LED group: 'and: the second switch unit 321 is coupled to the first LED 2, and the current control group 33 is electrically connected. The switch module 32 has a second switch unit 33 and an impedance unit 331, a N-cut = three-terminal adjustable regulator 334, and the gate of the S 332 is connected to the three ends to adjust the stability The anode end of the voltage regulator 334 is connected to the first resistor 333 and is connected to the pole. The 3NM〇s(1) and the second LED group 35 and the second switching unit 3 are exhausted. The source of the NMOS 332 is coupled to the reference end of the three-terminal adjustable voltage regulator 343 and a second resistor 33 10 ′ while being coupled to the third switching unit 33 and then connected in series with a third resistor 3311 ′. The second resistor 331 and the third resistor 33 ι form the impedance unit 33 i. The whole unit 3 1 〇 is a bridge full-wave rectifier circuit coupled to the power source 3 整流 to rectify the voltage of the power source 3 。. The voltage dividing unit 3 is formed by connecting two resistors in series, and is coupled to the rectifying unit 31 to divide the voltage of the power source to form a detection value 'and the voltage dividing unit 311 is depleted by the delay unit 311. The delay unit 311 ′ may be a thermistor temperature 〇 efficience (NTC ) to form a function of slowing down the M438781 to prevent the circuit from being generated when the power is turned on. The detecting unit 312 can be a three-terminal adjustable stabilizer, and the reference end is coupled between the two resistors, and the anode end is coupled to the first switching unit 320 to compare the internal 135~i45v after receiving the detected value. a reference value and the detected value, if the detected value To the reference value, the power supply 30 is shown in Table 11 0V, at this time, the detection module 3 is turned off and Shu 2 outputs a parallel signal. On the other hand, if the detected value is greater than the reference value, the power supply 30 is 220V and the detection module 3 is turned on to output a contention signal. When the switch module 32 receives the parallel signal, the first switch unit 320 and the second switch unit 321 are respectively turned on, so that the first light emitting diode group 34 and the second light emitting diode group are respectively turned on. 35 is connected in parallel with each other and carries 110 V, as shown in FIG. 4B, which is an equivalent diagram of the operation of the 110V power supply voltage in the preferred embodiment of the present invention. At this time, the switch module 32 outputs a low voltage signal to the current control module 33 to turn on the third switch unit 330 to connect the second resistor 331 to the third resistor 3311 to reduce the resistance of the impedance unit 331. The value forms a first operating current. Conversely, as shown in FIG. 5B, it is an equivalent diagram of the operation of the preferred embodiment of the 220V power supply voltage. When the switch module 32 receives the serial signal, the first switch unit 32 and the second The switch unit 321 is respectively turned off, so that the first light-emitting diode group 34 and the second light-emitting diode group 35 are connected in series to each other to carry 22 0V, and the switch module 32 outputs a high-voltage signal to the current control mode. The group 33 is turned off to the third switching unit 3311. At this time, the resistance value of the impedance unit 331 is the resistance of the second resistor 3310 to form the second operating current. Since the resistance of the second resistor 3310 of the 8 M438781 is greater than the resistance of the second resistor 331 〇 in parallel with the first resistor 3311, the first operating current is greater than the second operating current. Therefore, according to the P = VI principle, Maintains fixed power consumption. ... incidentally, the first switch unit 32, the second switch 321 and the third switch unit 33 are - a photocoupler - a solid state relay, a photo relay or a field effect transistor, The first light-emitting diode group 34 is connected to the second light-emitting diode through a high-voltage diode 36.
極體組35，以避免切換串並聯時產生瞬間逆電流而損毀 電路。 《 π 者以上所述僅為舉例性之較佳實施例，而非為限制性 任何未脫離本創作之精神與範禱，而對其進行之等 政^改或變更’均應包含於後附之申請專利範圍中。 M438781 【圖式簡單說明】 第1圖 係為習知定電流LED驅動電路之電路圖。 第2圖 係為本創作較佳實施例之方塊圖。 第3圖 係為本創作較佳實施例之電路圖。 第4 A圖係為本創作較佳實施例於11 0V電源電壓之作 動示意圖。 第4B圖係為本創作較佳實施例於1 1 0V電源電壓之作 動等效示意圖。 第5A圖係為本創作較佳實施例於220V電源電壓之作 動示意圖。 第5B圖係為本創作較佳實施例於220V電源電壓之作 動等效示意圖。 【主要元件符號說明】 習知技藝 1 定電流LED驅動電路 10 電晶體 11 感測電阻 12 比較器 2 LED 組 本創作 3 定功率發光二極體驅動裝置 30 電源 3 1 檢測模組 310 整流單元 311 分壓單元 3110延遲單元 10 M438781The polar body group 35 prevents the instantaneous reverse current from being generated when the series and parallel are switched to damage the circuit. The above is only an exemplary preferred embodiment, and is not intended to be limiting, and any such changes or modifications may be included in the appended claims. In the scope of patent application. M438781 [Simple description of the diagram] Figure 1 is a circuit diagram of a conventional constant current LED driver circuit. Figure 2 is a block diagram of a preferred embodiment of the present invention. Figure 3 is a circuit diagram of a preferred embodiment of the present invention. Figure 4A is a schematic diagram of the operation of the preferred embodiment of the 110 V supply voltage. Fig. 4B is a schematic diagram showing the operation equivalent of the 110 V power supply voltage of the preferred embodiment of the present invention. Figure 5A is a schematic diagram of the operation of the preferred embodiment of the 220V power supply voltage. Fig. 5B is a schematic diagram showing the operation equivalent of the 220V power supply voltage of the preferred embodiment of the present invention. [Main component symbol description] Conventional technology 1 Constant current LED drive circuit 10 Transistor 11 Sense resistor 12 Comparator 2 LED group creation 3 Constant power LED driver 30 Power supply 3 1 Detection module 310 Rectification unit 311 Voltage dividing unit 3110 delay unit 10 M438781
3 12 檢 測 UV 早 元 32 開 關 模 組 320 第 一 開 關 早 元 32 1 第 二 開 關 單 元 33 電 流 控 制 模 組 330 第 三 開 關 單 元 33 1 阻 抗 單 元 33 10 第 二 電 阻 33 1 1 第 二 電 阻 332 NMOS 333 第 一 電 阻 334 二 端 可 調 整 穩 壓 器 34 第 一 發 光 二 極 體 組 35 第 二 發 光 二 極 體 組 36 高 壓 二 極 體3 12 Detecting UV Early Element 32 Switch Module 320 First Switch Early Element 32 1 Second Switch Unit 33 Current Control Module 330 Third Switch Unit 33 1 Impedance Unit 33 10 Second Resistor 33 1 1 Second Resistor 332 NMOS 333 First resistor 334 two-terminal adjustable voltage regulator 34 first light-emitting diode group 35 second light-emitting diode group 36 high-voltage diode