M309697 ' 八、新型說明： 【新型所屬之技術領域】 本創作係關於一種節電穩壓鎮流裝置，尤其係關於一種螢 ' 光燈使用的節電穩壓鎮流裝置。 【先前技術】 在目前的照明燈具行業，現有的通用鎮流器是由電力電容 器、常閉熱敏開關、熱電阻線圈等電工元件組成，這種鎮流器 Φ 有很強的震動噪音和溫升，並且有光線閃爍，當電源接通時， 燈具不能快速點亮，同時由於市電電壓不穩定，鎮流器及燈具 都很容易燒壞，造成用戶的損失。 請參閱第一圖（係習知鎮流器的電路方塊圖），該鎮流器的 電路中包括橋式整流電路、電解電容濾波電路、半橋逆變電路 及LC輸出電路，在降低震動嗓音、控制溫升及快速啟動照明 等方面得到很好的改進，但是仍然存在很多問題，例如像異常 ⑩狀態的保護功能的問題。常見的異常狀態分以下幾種情況：1. 一個燈或幾個燈中的一個沒有接入；2.螢光燈因一個陰極損壞 而不能啟動；3.雖然陰極是完整的，但燈不能啟動；4.螢光燈 工作，但陰極中的一個未啟動或出現整流效應；5.啟動器開關 , 短路…等等。通常電子鎮流器與螢光燈管（如T5、T8直管或 其他形狀的螢光燈管）係配套使甩，如果在使用過程中，出現 異常狀態，都會造成鎮流器損壞。故作為獨立安裝、燈管可換 5 M309697 、 的電子鎮流器必須具備異常保護功能，.在異常狀態出現後，鎮 流器不能損壞，而在更換新燈管，或消除異常狀態後，鎮流器 應當仍能繼續使用。 這還僅僅是異常狀態的保護情況，在抗過壓、抑制浪湧電 流、延長燈具使用壽命、多負載聯動、提高功率因數、降低諧 波、實現恒功率輸出等方面，照明燈具行業現有的鎮流裝置還 有很多不足。 | 因此，需要研發一種新的節電穩壓鎮流裝置以解決上述問 【新型内容】 本創作之目的係針對上述先前技術存在的缺陷提供一種 節電穩壓鎮流裝置，可以提高電路功率因數，降低諧波，實現 恒功率輸出，具備異常保護功能，抑制高頻電流諧波對電網的 污染。 瞻本創作為了實現上述技術目的，採用如下技術方案： 本創作提供的節電穩壓鎮流裝置包括順序電連接的橋式 整流電路、電解電容濾波電路、半橋逆變電路、LC輸出電路； 其中進一步還包括用以抑制高頻電流諧波對電網產生污染的 電磁相容濾波器電路（EMC)、用以提高功率因數、降低諧波、 實現恒功率輸出的功率因數校正電路及用以防止異常狀態對 鎮流裝置產生損害的異常狀態保護電路；該電磁相容濾波器電 6 M309697 . 路（EMC)連接在電壓輸入端與橋式整流電路之間；該功率因 數校正電路，採用有源功率因數校正電路（APFC)，連接在橋 式整流電路與電解電容濾波電路之間；該異常狀態保護電路則 設置在半橋逆變電路之中。 根據本創作的一種實施方式，該電磁相容濾波器電路 (EMC)中還包括用以防止瞬間尖峰脈衝或超高壓干擾對鎮流 裝置及相關電路產生損害的過壓保護電路，該過壓保護電路中 籲包含氧化辞壓敏元件。 根據本創作的另一種實施方式，該異常狀態保護電路還包 括用以抑制浪 >勇電流的過流保護電路。 較佳的，該過流保護電路是在輸入電路中串聯限流電阻或 負溫度係數電阻（NTC)。 又，本創作的再一種實施方式，該LC輸出電路中還包括 在系統電壓達到額定值之前用以提供給螢光燈的陰極以預熱 • 電流和預熱時間從而避免出現輝光放電而導致陰極受到損傷 的啟動預熱電路，該啟動預熱電路是由熱敏元件對螢光燈的燈 絲進行加熱至點亮溫度。 較佳的，該LC輸出電路中還包括用以同時拖動二個或二 個以上的螢光燈工作的多負載工作電路。 具體的，該異常狀態保護電路是利用電晶體來檢測電流的 大小從而控制逆變電路工作的電路。 7 M309697 另外，該多負载工作電路可選擇性採用Lc多 電路或電流推換多燈輸出電路。 p咱振 广，該功率因數校正電路亦可選擇採用有源功率因數校 、、 ’丨作提供的節電穩壓鎮流裝置中，該带 谷遽波益電路可以抑制高頻電流譜波對電網產生污染 3 因數校正電路可以提高功率固數、降低 現二” 出；該異常狀態保護電跃 n現匕功率輪 害；該過屢保護電路可^W異常狀態對鎖流裝置產生損 流裝置及相闕電路產生瞬間大峰脈衝或超高屋干擾對鎖 流，·該啟動預熱電路可二’·該過流保護電路可以抑制浪湧電 傷，從而延長燈具工作&免出，輝光放電而導致陰極受到損 二個或二個以上的鸯光=作該夕負载工作電路可以同時拖動 【實施方式】 為詳細說明本創# * 功效，以下兹列舉實 ，L谷、冓造特徵、所達成目的及 』牛仏例並配合圖式詳 百先，請參閱苐二圖 卞况明· 序電連接的橋式整流 係本創作之電路方塊圖），包括順 電路8、LC輪出電路口 電解屯么濾波電路7、半橋逆變 ’且進一步還 波對電網產生污染 匕括用以抑制高頻電流諧 功率因數、降低讀波Γ容滤波器電路⑽”、用挪 貫現恒功率輪出的功率因數校正電路2 M309697 _ 及用以防止異常狀態對鎮流裝置產生損害的異常狀態保護電 路3 ;該電磁相容濾波器電路（EMC) 1連接在電壓輸入端與橋 式整流電路6之間；該功率因數校正電路，可採用有源功率因 數校正電路（APFC)，連接在橋式整流電路6與電解電容濾波 電路7之間；該異常狀態保護電路3設置在半橋逆變電路8之 中〇 再請參閱第三圖（係本創作之電磁相容濾波器電路（EMC) φ 之電路圖），揭示了本創作之電磁相容濾波器電路（EMC) 1， 是由電感和電容組成。 ' 再請參閱第四圖（係本創作之有源功率因數校正電路之電 * 路圖），揭示了本創作之功率因數校正電路2係採用有源功率 因數校正電路（APFC);於此以有源功率因數校正電路（APFC) 作為優選方案，是因為採用有源功率因數校正電路（APFC)比 採用其他功率因數校正電路得到的提高功率因數、降低諧波、 • 實現恒功率輸出的效果好；這類功率因數校正電路2要用到專 用的積體電路、電晶體及一些週邊元件，因為涉及到有源的元 器件，故稱為有源功率因數校正電路（APFC)。 再請參閱第五圖（係本創作之異常狀態保護電路之電路 . 圖），揭示了本創作之異常狀態保護電路3，在正常工作狀態 下，設置副繞組在電容C1上產生的電壓僅有20-25V (或更低 一些），它不足以使觸發二極體DB3導通。因此受控整流器33 9 M309697 ' 和三極管34得不到足夠的基極電流及觸發電流，處於截止及 關斷狀態，這時異常狀態保護電路3不起作用。而一旦出現異 常狀態，電容C1上感應出的電壓超過觸發二極體DB3的觸發 電壓，使觸發二極體DB3導通，從而導通受控整流器33和三 極管34，使半橋逆變電路8停止工作，並且不會再次觸發。 再請參閱第六圖（係本創作過壓保護電路之電路圖），揭 示了本創作提供的過壓保護電路11。在其輸入電路中並聯一個 φ 氧化鋅壓敏元件，它能將在輸入電路中出現的電網電壓暫態尖 峰脈衝削波或限幅，使加到鎮流裝置的電壓降低。 再請參閱第七圖（係本創作過流保護電路之電路圖），揭 示了本創作提供的過流保護電路31，減小浪湧電流的最好辦法 就是在輸入電路中串聯一個限流電阻或負溫度係數電阻 (NTC)，該負溫度係數電阻（NTC)在室溫條件下的冷阻較大， 可以有效地抑制浪湧電流。 • 本創作提供的啟動預熱電路4，首先應保證使陰極達到發 射所需要的溫度，即提供給陰極（即燈絲）以足夠的電流和一 定的預熱時間，在陰極達到電子發射狀態，並在陰極周圍形成 足夠的電子霧之前，加到燈管兩端的電壓應足夠低，以免出現 , 輝光放電，導致陰極受到損傷；於此，本創作提供了三種啟動 預熱電路，說明如下： 請參閱第八圖（係本創作啟動預熱電路第一實施方式之電 M309697 路圖）’該啟動預熱電路41中，一個電容、一個燈（LAMP)及 一個電感依次串聯，该燈（LAMP )再並聯於由一個電容和一個 熱敏元件（PTC)並聯組成的並聯電路。電路啟動時，熱敏元 件（PTC)開始阻值較低，限制了燈（LAMP)兩端電壓在有效 值以内，隨著時間的延長，熱敏元件（PTC)的阻值開始升高， 經過短時間後，預熱結束，與熱敏元件（PTC)並聯的電容兩 端電壓迅速升高，將燈（LAMP)管擊穿點亮。 • 請參閱第九圖（係本創作啟動預熱電路第二實施方式之電 路圖），與第一種實施方式不同的是，該啟動預熱電路42中增 設了第一電容45,該第一電容45與熱敏元件（PTC)串聯。電 路啟動時，熱敏元件（PTC)開始阻值較低，從而使得由第一 電容45和熱敏元件（PTC)串聯的總電阻也低，則限制了燈 (LAMP)兩端電壓在有效值以内，隨著時間的延長，熱敏元件 (PTC)阻值開始升高，經過短時間後，預熱結束，則第一電 •容45和熱敏元件（PTC)串聯的總電阻升高，從而使得與第一 電谷45和熱敏元件（ptc)串聯組成的串聯電路並聯的電容兩 端電壓迅速升高，將燈（LAMP)管擊穿點亮。 請參閱第十圖（係本創作啟動預熱電路第三實施方式之電 - 路圖）’與第二種實施方式不同的是，該啟動預熱電路43增設 了第二電容46,該第二電容46與熱敏元件（PTC)並聯。電路 啟動時，熱敏元件（PTC)開始阻值較低，從而使得由第二電 11 M309697 , 容46和熱敏元件（PTC)並聯的總電阻再與第一電容45的電 阻之和也低，則限制了 LAMP (燈）兩端電壓在有效值以内，隨 著時間的延長，熱敏元件（PTC)阻值開始升高，經過短時間 後，預熱結束，則第二電容46和熱敏元件（PTC)並聯的總電 阻與第一電容45的電阻之和升高，從而使得與燈（LAMP)並 聯的電容兩端電壓迅速升高，則將燈（LAMP)管擊穿點亮。 第十一圖（係本創作多負載工作電路第一種實施方式之電 • 路圖），該多負載工作電路為LC多燈串聯諧振電路51。 第十二圖（係本創作多負載工作電路第二種實施方式之電 路圖），該多負載工作電路為電流推換多燈輸出電路52 ;所謂 多負載工作電路就是一個鎮流裝置同時點亮二個或二個以上 的螢光燈並且持續工作的電路；這種電路具有安裝方便、可靠 性能高、節能效果顯著、電網污染低、低損耗等等優點。 綜上所述，本創作「節電穩壓鎮流裝置」係合乎新型專利 • 之要件，故爰依法提出申請。惟，以上所揭露者，僅為本創作 之較佳實施例而已，自不能以此限定本創作之權利範圍，因此 依本創作申請專利範圍所作之均等變化或修飾者，皆仍屬本創 作所涵蓋之範圍。 12 M309697 - 【圖式簡單說明】 第一圖係習知鎮流器之電路方塊圖 第二圖係本創作節電穩壓鎮流裝置之電路方塊圖 第三圖係本創作電磁相容濾波器電路（EMC)之電路圖 第四圖係本創作有源功率因數校正電路（APFC)之電路圖 第五圖係本創作異常狀態保護電路之電路圖 第六圖係本創作過壓保護電路之電路圖 | 第七圖係本創作過流保護電路之電路圖 第八圖係本創作啟動預熱電路第一實施方式之電路圖 第九圖係本創作啟動預熱電路第二實施方式之電路圖 第十圖係本創作啟動預熱電路第三實施方式之電路圖 第十一圖係本創作多負載工作電路第一種實施方式之電路 圖 第十二圖係本創作多負載工作電路第二種實施方式之電路 •圖 【主要元件符號說明】 11 過壓保護電路 3 異常狀態保護電路 33 受控整流器 4 啟動預熱電路 42 啟動預熱電路 1 電磁相容濾波器電路 2 功率因數校正電路 ,31過流保護電路 34三極管 41啟動預熱電路 13 M309697 43 啟動預熱電路 45 第一電容 46 第二電容 5 多燈串聯電路 51 LC多燈串聯諧振電路 52 電流推換多燈輸出電路 6 橋式整流電路 7 電解電容濾波電路 8 半橋逆變電路 9 LC輸出電路M309697 ' VIII. New description: [New technical field] This creation is about a power-saving and voltage-stabilizing ballast device, especially for a power-saving and voltage-stabilized ballast device used in a fluorescent light. [Prior Art] In the current lighting industry, the existing universal ballast is composed of electrical components such as power capacitors, normally closed thermal switches, and thermal resistance coils. This ballast Φ has strong vibration noise and temperature. It rises and there is light flashing. When the power is turned on, the lamps cannot be quickly lit. At the same time, due to the unstable mains voltage, the ballast and the lamps are easily burned out, causing loss to the user. Please refer to the first figure (the circuit block diagram of the conventional ballast). The circuit of the ballast includes a bridge rectifier circuit, an electrolytic capacitor filter circuit, a half-bridge inverter circuit and an LC output circuit to reduce the vibration noise. Improvements in temperature rise and quick start lighting are well improved, but there are still many problems, such as the protection function of an abnormal 10-state. The common abnormal state is divided into the following cases: 1. One lamp or one of the lamps is not connected; 2. The fluorescent lamp cannot be activated due to a cathode damage; 3. Although the cathode is complete, the lamp cannot be activated. ; 4. Fluorescent lamp works, but one of the cathodes does not start or rectification effect; 5. Starter switch, short circuit...etc. Generally, electronic ballasts and fluorescent tubes (such as T5, T8 straight tubes or other shaped fluorescent tubes) are used to make the ballast damaged if it is in an abnormal state during use. Therefore, as an independent installation, the lamp can be replaced with 5 M309697, the electronic ballast must have an abnormal protection function. After the abnormal state occurs, the ballast can not be damaged, and after replacing the new lamp or eliminating the abnormal state, the town The streamer should still be able to continue to use. This is only the protection of the abnormal state, the existing town of the lighting industry in the aspects of anti-overvoltage, suppression of surge current, extension of lamp life, multi-load linkage, improvement of power factor, reduction of harmonics, realization of constant power output, etc. There are still many deficiencies in streaming devices. Therefore, it is necessary to develop a new power-saving voltage-stabilizing ballast device to solve the above problem [new content] The purpose of this creation is to provide a power-saving voltage-stabilizing ballast device for the defects of the above prior art, which can improve the circuit power factor and reduce Harmonics, to achieve constant power output, with abnormal protection, to suppress high-frequency current harmonics on the grid. In order to achieve the above technical objectives, Zhanben Creation adopts the following technical solutions: The power-saving and voltage-stabilizing ballast device provided by the present invention includes a bridge rectifier circuit, an electrolytic capacitor filter circuit, a half-bridge inverter circuit and an LC output circuit which are sequentially electrically connected; Further, it further includes an electromagnetic compatibility filter circuit (EMC) for suppressing contamination of the power grid by high frequency current harmonics, a power factor correction circuit for improving power factor, reducing harmonics, realizing constant power output, and for preventing abnormality. An abnormal state protection circuit that damages the ballast device; the electromagnetic compatibility filter is electrically connected to the bridge rectifier circuit; the power factor correction circuit uses active power The factor correction circuit (APFC) is connected between the bridge rectifier circuit and the electrolytic capacitor filter circuit; the abnormal state protection circuit is disposed in the half bridge inverter circuit. According to an embodiment of the present invention, the electromagnetic compatibility filter circuit (EMC) further includes an overvoltage protection circuit for preventing damage to the ballast device and related circuits by instantaneous spike or ultrahigh voltage interference, and the overvoltage protection circuit The circuit calls for an oxidizing pressure sensitive element. According to another embodiment of the present invention, the abnormal state protection circuit further includes an overcurrent protection circuit for suppressing the wave current. Preferably, the overcurrent protection circuit is a series current limiting resistor or a negative temperature coefficient resistor (NTC) in the input circuit. Moreover, in still another embodiment of the present invention, the LC output circuit further includes a cathode for supplying the fluorescent lamp to the preheating current and the warm-up time before the system voltage reaches the rated value to avoid the glow discharge. The start preheating circuit is damaged by the cathode, and the start preheating circuit heats the filament of the fluorescent lamp to a lighting temperature by the heat sensitive element. Preferably, the LC output circuit further includes a multi-load working circuit for simultaneously dragging two or more fluorescent lamps. Specifically, the abnormal state protection circuit is a circuit that uses a transistor to detect the magnitude of the current to control the operation of the inverter circuit. 7 M309697 In addition, the multi-load working circuit can selectively use Lc multi-circuit or current to push multi-lamp output circuit. p咱振广, the power factor correction circuit can also choose to use active power factor calibration, and the power-saving and voltage-stabilizing ballast device provided by the operation, the band-band wave benefit circuit can suppress the high-frequency current spectrum wave to the grid The pollution-causing 3 factor correction circuit can improve the power-solid number and reduce the current two-out; the abnormal state protects the electric jump n from the current power wheel; the over-protection circuit can generate an damper device for the lock-flow device The phase-to-phase circuit generates an instantaneous large-peak pulse or an ultra-high-rise interference to the lock current. The start-up preheating circuit can be used. The overcurrent protection circuit can suppress the surge current, thereby prolonging the operation of the lamp and eliminating the glow discharge. The cathode is damaged by two or more 鸯 = ====================================================================================== The purpose and the "Bag" example and the detailed description of the pattern, please refer to the diagram of the circuit diagram of the bridge rectifier system of the circuit diagram), including the circuit 8 and the LC wheel circuit port. Electrolytic filter circuit 7, half-bridge inverter' and further wave pollution to the power grid, including suppression of high-frequency current harmonic power factor, reducing read wave capacitance filter circuit (10)", using the constant power constant power wheel The power factor correction circuit 2 M309697 _ and the abnormal state protection circuit 3 for preventing damage to the ballast device caused by the abnormal state; the electromagnetic compatibility filter circuit (EMC) 1 is connected to the voltage input terminal and the bridge rectifier circuit 6 The power factor correction circuit can be connected between the bridge rectifier circuit 6 and the electrolytic capacitor filter circuit 7 by using an active power factor correction circuit (APFC); the abnormal state protection circuit 3 is disposed in the half bridge inverter circuit Please refer to the third figure (the circuit diagram of the electromagnetic compatibility filter circuit (EMC) φ of this creation), which reveals that the electromagnetic compatibility filter circuit (EMC) 1 of this creation is composed of inductance and capacitance. composition. 'Please refer to the fourth figure (the electric * road diagram of the active power factor correction circuit of this creation), revealing that the power factor correction circuit 2 of the present invention adopts an active power factor correction circuit (APFC); The active power factor correction circuit (APFC) is preferred because the active power factor correction circuit (APFC) is better than other power factor correction circuits to improve power factor, reduce harmonics, and achieve constant power output. Such a power factor correction circuit 2 uses a dedicated integrated circuit, a transistor, and some peripheral components, and is called an active power factor correction circuit (APFC) because it involves active components. Referring to the fifth figure (the circuit of the abnormal state protection circuit of the present invention. Fig.), the abnormal state protection circuit 3 of the present invention is disclosed. Under normal working conditions, the voltage generated by the secondary winding on the capacitor C1 is set only. 20-25V (or lower), it is not enough to make the trigger diode DB3 turn on. Therefore, the controlled rectifier 33 9 M309697 ' and the transistor 34 do not have sufficient base current and trigger current, and are in an off state and an off state, at which time the abnormal state protection circuit 3 does not function. When an abnormal state occurs, the voltage induced on the capacitor C1 exceeds the trigger voltage of the trigger diode DB3, causing the trigger diode DB3 to be turned on, thereby turning on the controlled rectifier 33 and the transistor 34, so that the half-bridge inverter circuit 8 stops working. And will not trigger again. Referring again to the sixth drawing (the circuit diagram of the overvoltage protection circuit of the present invention), the overvoltage protection circuit 11 provided by the present invention is disclosed. A φ zinc oxide varistor is connected in parallel with its input circuit, which clips or limits the grid voltage transient spikes present in the input circuit, reducing the voltage applied to the ballast. Referring to the seventh figure (the circuit diagram of the overcurrent protection circuit), the overcurrent protection circuit 31 provided by the present invention is disclosed. The best way to reduce the inrush current is to connect a current limiting resistor in series with the input circuit. Negative temperature coefficient resistor (NTC), the negative temperature coefficient resistor (NTC) has a large cold resistance at room temperature, which can effectively suppress the inrush current. • The start-up preheating circuit 4 provided by this creation should first ensure that the cathode reaches the temperature required for the emission, that is, the cathode (ie, the filament) is supplied with sufficient current and a certain warm-up time to reach the electron emission state at the cathode, and Before a sufficient electron fog is formed around the cathode, the voltage applied to both ends of the lamp should be low enough to avoid the occurrence of glow discharge and damage to the cathode. Here, the creation provides three start-up preheat circuits, as explained below: The eighth figure (the electric M309697 road diagram of the first embodiment of the preheating circuit of the present invention is started). In the starting preheating circuit 41, a capacitor, a lamp (LAMP) and an inductor are connected in series, and the lamp (LAMP) is further Parallel to a parallel circuit consisting of a capacitor and a thermal element (PTC) in parallel. When the circuit is started, the thermal element (PTC) starts to have a low resistance value, which limits the voltage across the lamp (LAMP) to within the effective value. As time passes, the resistance of the thermal element (PTC) begins to rise. After a short time, the preheating is completed, and the voltage across the capacitor in parallel with the thermal element (PTC) rises rapidly, and the lamp (LAMP) tube is broken down to illuminate. • Referring to FIG. 9 (which is a circuit diagram of the second embodiment of the pre-heating circuit of the present invention), different from the first embodiment, a first capacitor 45 is added to the startup preheating circuit 42 and the first capacitor is added. 45 is connected in series with the thermal element (PTC). When the circuit is started, the thermal element (PTC) starts to have a low resistance value, so that the total resistance in series by the first capacitor 45 and the thermal element (PTC) is also low, which limits the voltage across the lamp (LAMP) to an effective value. Within the time period, the resistance value of the thermal element (PTC) starts to rise with time. After a short time, the preheating is completed, and the total resistance of the first electric capacitor 45 and the thermal element (PTC) in series is increased. Thereby, the voltage across the capacitor connected in parallel with the series circuit composed of the first electric valley 45 and the thermal element (ptc) is rapidly increased, and the lamp (LAMP) tube is broken down to illuminate. Please refer to the tenth figure (the electric-road diagram of the third embodiment of the pre-heating circuit of the present invention). The difference from the second embodiment is that the starting preheating circuit 43 adds a second capacitor 46, the second Capacitor 46 is connected in parallel with the thermal element (PTC). When the circuit is started, the thermal element (PTC) starts to have a lower resistance value, so that the sum of the total resistance of the second electric 11 M309697, the capacitor 46 and the thermal element (PTC) in parallel and the resistance of the first capacitor 45 is also low. , the voltage across the LAMP (lamp) is limited to within the effective value. As time passes, the resistance of the thermal element (PTC) begins to rise. After a short period of time, the preheating ends, the second capacitor 46 and the heat. The sum of the total resistance of the sensitive element (PTC) in parallel and the resistance of the first capacitor 45 is increased, so that the voltage across the capacitor in parallel with the lamp (LAMP) rises rapidly, and the lamp (LAMP) tube is broken down to illuminate. The eleventh figure (the electric circuit diagram of the first embodiment of the multi-load working circuit of the present invention), the multi-load working circuit is an LC multi-lamp series resonant circuit 51. Twelfth figure (the circuit diagram of the second embodiment of the multi-load working circuit of the present invention), the multi-load working circuit is a current-swapping multi-lamp output circuit 52; the so-called multi-load working circuit is a ballast device simultaneously lighting two One or more fluorescent lamps and continuous working circuits; such circuits have the advantages of convenient installation, high reliability, significant energy saving effect, low grid pollution, low loss and the like. In summary, the creation of the “Power Saving and Regulating Ballast Device” is in line with the requirements of the new patent. However, the above disclosure is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the present invention. Therefore, the equivalent change or modification of the patent application scope of the present invention is still the present invention. The scope of coverage. 12 M309697 - [Simple diagram of the diagram] The first diagram is the circuit block diagram of the conventional ballast. The second diagram is the circuit block diagram of the creation of the power-saving voltage regulator ballast device. The third diagram is the creation of the electromagnetic compatibility filter circuit. The circuit diagram of (EMC) is the circuit diagram of the active power factor correction circuit (APFC). The fifth diagram is the circuit diagram of the creation of the abnormal state protection circuit. The sixth diagram is the circuit diagram of the overvoltage protection circuit. The eighth diagram of the circuit of the overcurrent protection circuit is the circuit diagram of the first embodiment of the present invention. The ninth diagram of the second embodiment of the preheating circuit of the present invention is shown in the figure. Circuit diagram of the third embodiment of the circuit FIG. 11 is a circuit diagram of the first embodiment of the present invention. FIG. 12 is a circuit diagram of the second embodiment of the multi-load working circuit of the present invention. 】 11 Overvoltage protection circuit 3 abnormal state protection circuit 33 Controlled rectifier 4 Start preheat circuit 42 Start preheat circuit 1 Electromagnetic compatible filter circuit 2 Rate factor correction circuit, 31 overcurrent protection circuit 34 transistor 41 start preheat circuit 13 M309697 43 start preheat circuit 45 first capacitor 46 second capacitor 5 multi lamp series circuit 51 LC multi lamp series resonant circuit 52 current push multi lamp Output circuit 6 bridge rectifier circuit 7 electrolytic capacitor filter circuit 8 half bridge inverter circuit 9 LC output circuit