201216782 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種具互補連續電流模式充電幫浦功率因數 修正(power factor correction，PFC)電路的全橋電子式安定 器（electronic ballast)，尤指一種具互補連續電流模式之電壓 源（或電流源）充電幫浦PFC電路的全橋電子式安定器。 【先前技術】 隨著照明技術的進步，電子式安定器逐漸取代電磁式 安定器（Electromagnetic ballast)被應用於照明市場。電子式 安定器與電磁式安定器比較，具有體積小、輕薄、壽命長 之優點，應用於照明市場極具競爭力，故電子式安定器具 有極大之發展潛力。然而，為了使輸入電流符合IEC 61000-3-2 Class C規範，具有功率因數修正功能之電子式 安定器普遍地被使用於照明設備。目前具功率因數修正功 能之電子安定器以兩級式（如第一圖）為主流，該兩級式電 子安定器包括一交流輸入電源（提供一交流輸入電壓 Vin)、一濾波電路（包含電感LEMI與電容CEMI)、一整流電 路（包含二極體Dbrl-Dbr4)、一 PFC級（包含電感Lpfc、二 極體Dy、電容Cin以及開關Spfc)以及一全橋式逆變器（包 含電感Ls、電容CB與Cp、開關S1-S4以及燈具(lamp))， 其缺點為： (1) 需要較多的元件，電路成本較高。 (2) 功因修正電路以及功率級皆需要控制1C，電路較為複 雜。201216782 VI. Description of the Invention: [Technical Field] The present invention relates to a full bridge electronic ballast with a complementary continuous current mode charging pump power factor correction (PFC) circuit, especially A full-bridge electronic ballast with a complementary continuous current mode voltage source (or current source) charging pump PFC circuit. [Prior Art] With the advancement of lighting technology, electronic ballasts have gradually replaced the electromagnetic ballasts (Electromagnetic ballast) in the lighting market. Compared with electromagnetic ballasts, electronic ballasts have the advantages of small size, light weight and long life. They are very competitive in the lighting market, so electronic stabilizers have great potential for development. However, in order to make the input current comply with the IEC 61000-3-2 Class C specification, an electronic ballast with a power factor correction function is commonly used for lighting equipment. At present, the electronic ballast with power factor correction function is mainly in two stages (such as the first figure). The two-stage electronic ballast includes an AC input power supply (providing an AC input voltage Vin) and a filter circuit (including an inductor). LEMI and capacitor CEMI), a rectifier circuit (including diode Dbrl-Dbr4), a PFC stage (including inductor Lpfc, diode Dy, capacitor Cin, and switch Spfc) and a full-bridge inverter (including inductor Ls) The capacitors CB and Cp, the switches S1-S4, and the lamps have the following disadvantages: (1) More components are required, and the circuit cost is high. (2) Both the power factor correction circuit and the power stage need to control 1C, and the circuit is more complicated.
S 3 201216782 為了解決以上的缺點，因而發展出具不連續電流模式 充電幫浦功因修正電路的半橋式電子安定器（如第二圖）。 該具不連續電流模式充電幫浦功因修正電路的半橋式電子 安定器，除包括上述第一圖中之該交流輸入電源、該濾波 電路與該整流電路外，尚包括一 PFC級（包含一電容Cin與 二極體Dy)、一半橋式逆變器（包含電感Ls、電容CB與Cp、 開關S1-S2以及燈具）與一輸出電容Cdc。然而，該具不連 續電流模式充電幫浦功因修正電路的半橋式電子安定器仍 具有下列缺點： (1) 電路操作於不連續導通模式，輸入電流具有較大的 di/dt，電磁雜訊干擾較嚴重。 (2) 電路具有較大的峰值電流，須使用耐流較大的電路元 件。 由於在許多中高功率照明應用中，半橋架構已不適 用，因此，本發明將連續電流模式充電幫浦功率因數修正 之技術（如第三圖與第四圖）與全橋電子安定器結合。如第 三圖所示之連續電流模式之電壓源充電幫浦功率因數修正 電路之等效電路具有一經整流之直流電壓源（提供一經整 流之電壓|Vin|與一電流Iin)、二極體Dx與Dy、電感Lpfc、 電容Cin、電壓源（用以提供一電壓Va)、負載以及輸出電 容Cdc，且該輸出電容Cdc之一跨壓為一輸出電壓Vbus。 如第四圖所示之連續電流模式之電流源充電幫浦功率因數 修正電路之等效電路，其與第三圖之不同在於：少了一個 二極體Dx、該經整流之直流電壓源提供一電流lpfc、該電 201216782 容Cin具有一跨壓Vein且與該二極體Dy並聯電連接、該 電壓源Va被一電流源（提供電流is)所取代，以及該輸出 電容Cdc被一輸出電壓源（用以提供一直流輸出電壓Vbus) 所取代。如此一來，不但可精簡電路架構與驅動電路之元 件’並可藉由充電幫浦功因修正電路降低功率因數修正電 感與輸入濾波器體積，進而降低電路成本並縮小電路體 積。且由於電路操作於連續電流模式，因此具有較小的輸 I 入電流错波失真、較高的輸入電流功率因數、較低的開關 與二極體導通和切換損失，進而提高整體電路效率。 職是之故，發明人鑒於習知技術之缺失，乃思及改良 發明之意念，終能發明出本案之「具互補連續電流模式充 電幫浦功因修正電路的全橋電子安定器」。 【發明内容】 本案之主要目的在於提供一種具互補連續電流模式充 電幫浦功因修正電路的全橋電子安定器，因其使用充電幫 • 浦功率因數修正技術，故擁有下述之優點：可減少電路所 需疋件數，進而降低電路成本，且具低輸入電流諧波失真 與向功因，並可減小諸如PFC電感與EMI濾波器等元件的 體積，以及降低開關切換與二極體之導通損失。 、 本案之又一主要目的在於提供一種電子安定器，包含一第 連續電流模式充電幫浦功率因數修正(pFC)電路，包括— 第一電感，具-第-端，-第一二極體’具一陽極與一陰 極，其中該陽極耦合於該第一電感之該第一端，一第二: 極體，具一陽極與一陰極，其中該陽極耦合於該第一二極 5 201216782 體之該陰極，以及-第-電容，具—第—端與 其中該第-端輕合於該第二二極體之該陽極，雷 路’包括-第三二極體，具一陽極與一陰極， 輕合於該第二二極體之該陰極，以及—第四二極體== 陽極與-陰極，其中該陰_合於該第三 ς 極，一第二電感，具-第-端麵合於該第四二極體= ，-電容之該第二端，一第二連續電流模= 浦功率因數修正(PFC)電路，包括—第二電容，ι Μ d第，合於該第-電容之該第： %，以及-第五二極體’具—陽極與一陰極，1 第四二極體之該陽極’且該陰極耦合於該二電 谷之該第二端，以及一全橋式逆變器， 电 第二連續電流模式充電幫浦PFn Ί該 電壓。 ㈣且產生—交流輸出 、本案之下-主要目的在於提供—種電子安定器，包含一 連續電流模式充電幫浦功率因數修正(PFC)電路，包括一第一電 感，具一第一端，一第一二極體，具一陽極與一陰極，其中該陽 極輕合於该弟一電感之該第一端，一第二二極體，具一陽極與一 陰極’其中該陽極耦合於該第一二極體之該陰極，以及一第一電 容，具一第一端與一第二端，其中該第一端耦合於該第二 一極體之該陽極，一第二電感，具一第一端耦合於該第一 電容之該第二端，一第二連續電流模式充電幫浦功率因數 修正(PFC)電路，包括一第二電容，具一第一端與一第二 ^，其中該第一端搞合於該第一電容之該第二端，以及一 201216782 第j極體，具一陰極輕合於該第二電容之該第二端，以 及一全橋式逆變器，輕合於該第一與該第二連續電流 充電幫浦PFC電路’且產生一交流輸出電壓。 本案之再一主要目的在於提供一種電子安定器，包含一第 連續電流模式充電幫浦功率因數修正(PFC)電路，包括一 第一電感，具一第一端，一第一二極體，具一陽極與一陰 極，其中該陽極耦合於該第一電感之該第一端，—第二二 鲁極體，具一陽極與一陰極，其中該陽極耦合於該第一二極 體之該陰極，以及一第一電容，具一第一端與一第二端， 其中該第一端耦合於該第二二極體之該陽極，一箝位電 路，包括一第三二極體，具一陽極與一陰極，其中該陰極 麵&於β亥第--極體之該陰極，以及一第四二極體，且一 陽極與一陰極，其中該陰極耦合於該第三二極體之該陽 極，一第二電感，具一第一端耦合於該第四二極體之該陰 極與該第一電容之該第二端，以及一全橋式逆變器，耦合 # 於該第一連續電流模式充電幫浦PFC電路與該箝位電路， 且產生一交流輸出電壓。 為了讓本發明之上述目的、特徵、和優點能更明顯易 懂’下文特舉較佳實施例，並配合所附圖式，作詳細說明 如下： 【實施方式】 本發明所提供之連續電流模式充電幫浦功因修正電路，包人 了功因修正電感LpfC、充電幫浦電容Cin與等效二極體％，根據電 路接法的不同，可分為電壓源以及電流源兩種型式，如前述第二 7 201216782 圖與第四騎不’其巾健源奴主要是串聯—高頻雜源當作 參考訊號源，而電流源型摘是並聯-高頻電流源當作參考訊號 源，兩者皆可以達到功因修正的效果。 第五圖為依據本發明構想之較佳實施例的具互補連續 電抓模式之電>1源充電幫浦功率因數修正的全橋式電子安定器之 電路圖。在第五財除具有前述第—时之該交流輸入電 源該遽波電路、該整流電路、該全橋式逆變器以及前 述第二圖中所示之該輸出電容Cde外，其與第一圖之不同 處為第圖中之該pFC級被一互補連續電流模式充電幫浦 PFC電路所取代，而該互補連續電流模式之電屋源充電幫 浦PFC電路包括電感LPfc與Lx、二極體Dx、Dy卜Dy2 ' Drl與Dr2以及電容Cinl與Cin2。 如第五圖所示之全橋式電子安定器，是利用先前所提及之充 電幫浦功率因數修正技術，結合於全橋式電子安定器 直 功率因數並獲得良好諧波失真。 σ八 .在第五圖中，該電子安定器包含一第一連續電流模式充 電幫浦功率因數修正(PFC)電路，包括一第一電感Lpfc，具 第螭，一第一二極體Dx，具一陽極與一陰極，其中該 陽極耦合於該第一電感Lpfc之該第一端，一第二二極體S 3 201216782 In order to solve the above shortcomings, a half-bridge electronic ballast with a discontinuous current mode charging pump power correction circuit (such as the second figure) was developed. The half bridge electronic ballast with a discontinuous current mode charging pumping power correction circuit includes a PFC stage (including a PFC stage including the AC input power source, the filter circuit and the rectifying circuit in the first figure) A capacitor Cin and diode Dy), a half bridge inverter (including inductor Ls, capacitors CB and Cp, switches S1-S2 and the lamp) and an output capacitor Cdc. However, the half-bridge electronic ballast with the discontinuous current mode charging pump due to the correction circuit still has the following disadvantages: (1) The circuit operates in the discontinuous conduction mode, and the input current has a large di/dt, electromagnetic miscellaneous The interference is more serious. (2) The circuit has a large peak current and must use circuit components with high current resistance. Since the half-bridge architecture is not suitable in many medium and high power lighting applications, the present invention combines continuous current mode charging pump power factor correction techniques (such as the third and fourth figures) with a full bridge electronic ballast. The equivalent circuit of the continuous current mode voltage source charging pump power factor correction circuit as shown in the third figure has a rectified DC voltage source (providing a rectified voltage |Vin| and a current Iin), a diode Dx And Dy, the inductor Lpfc, the capacitor Cin, the voltage source (to provide a voltage Va), the load, and the output capacitor Cdc, and one of the output capacitors Cdc is across an output voltage Vbus. The equivalent circuit of the current source charging pump power factor correction circuit of the continuous current mode as shown in FIG. 4 is different from the third figure in that one diode Dx is missing, and the rectified DC voltage source is provided. a current lpfc, the current 201216782 capacitance Cin has a voltage across the Vein and is electrically connected in parallel with the diode Dy, the voltage source Va is replaced by a current source (current supply is), and the output capacitor Cdc is output voltage The source (to provide a DC output voltage Vbus) is replaced. In this way, not only can the components of the circuit architecture and the driver circuit be reduced, but the power factor correction inductance and the input filter volume can be reduced by the charging pump power correction circuit, thereby reducing the circuit cost and reducing the circuit volume. And because the circuit operates in continuous current mode, it has smaller input and output current error, higher input current power factor, lower switching and diode conduction and switching losses, which in turn improves overall circuit efficiency. As a result of the job, the inventor, in view of the lack of prior art, thought of and improved the idea of invention, and finally invented the "full-bridge electronic ballast with a complementary continuous current mode charging pump power correction circuit". SUMMARY OF THE INVENTION The main purpose of the present invention is to provide a full-bridge electronic ballast with a complementary continuous current mode charging pump power factor correction circuit. Since it uses the charging power factor correction technology, it has the following advantages: Reduces the number of components required for the circuit, which in turn reduces circuit cost, has low input current harmonic distortion and power factor, and reduces the size of components such as PFC inductors and EMI filters, as well as reducing switching and diode switching The conduction loss. Another main object of the present invention is to provide an electronic ballast comprising a continuous current mode charging pump power factor correction (pFC) circuit, including - a first inductor having a - terminal end, a first diode An anode and a cathode, wherein the anode is coupled to the first end of the first inductor, and a second: a pole body having an anode and a cathode, wherein the anode is coupled to the first diode 5 201216782 The cathode, and the - pedestal, having a first end and the first end of the anode being lightly coupled to the anode of the second diode, the lightning path comprising a third diode having an anode and a cathode Lightly bonding to the cathode of the second diode, and - fourth diode == anode and cathode, wherein the cathode is combined with the third anode, a second inductor, and the first end Facing the second terminal =, the second end of the -capacitor, a second continuous current mode = a power factor correction (PFC) circuit, including - a second capacitor, ι Μ d, in the same - the capacitor: %, and - the fifth diode ' has an anode and a cathode, 1 the anode of the fourth diode' and It is coupled to the second end of the two electrically Valley, and a full-bridge inverter, a second electrically continuous current mode PFn Ί the charge pump voltage. (d) and generate - AC output, under the present case - the main purpose is to provide an electronic ballast, comprising a continuous current mode charging pump power factor correction (PFC) circuit, comprising a first inductor, having a first end, a a first diode having an anode and a cathode, wherein the anode is lightly coupled to the first end of the inductor, a second diode having an anode and a cathode, wherein the anode is coupled to the cathode a cathode of a diode, and a first capacitor having a first end and a second end, wherein the first end is coupled to the anode of the second body, and the second inductor has a first One end is coupled to the second end of the first capacitor, and a second continuous current mode charging pump power factor correction (PFC) circuit includes a second capacitor having a first end and a second end, wherein the second end The first end is engaged with the second end of the first capacitor, and a 201216782 j-th body, having a cathode lightly coupled to the second end of the second capacitor, and a full bridge inverter, light Cooperating with the first and second continuous current charging pump PFC circuits 'and generating one Stream output voltage. A further object of the present invention is to provide an electronic ballast comprising a continuous current mode charging pump power factor correction (PFC) circuit, comprising a first inductor having a first end, a first diode, An anode and a cathode, wherein the anode is coupled to the first end of the first inductor, the second two-pole body having an anode and a cathode, wherein the anode is coupled to the cathode of the first diode And a first capacitor having a first end and a second end, wherein the first end is coupled to the anode of the second diode, and a clamping circuit includes a third diode An anode and a cathode, wherein the cathode surface & is the cathode of the β-electrode body, and a fourth diode, and an anode and a cathode, wherein the cathode is coupled to the third diode The anode, a second inductor having a first end coupled to the cathode of the fourth diode and the second end of the first capacitor, and a full bridge inverter coupled to the first Continuous current mode charging pump PFC circuit and the clamp circuit, and generate an alternating current Voltage. The above described objects, features, and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention. Charging pump power due to the correction circuit, including the power factor correction inductor LpfC, charging pump capacitor Cin and equivalent diode %, according to different circuit connections, can be divided into voltage source and current source two types, such as The aforementioned second 7 201216782 map and the fourth rider are not connected with the source of the source - the high frequency source is used as the reference source, and the current source type is the parallel - high frequency current source as the reference source, All can achieve the effect of the correction of the cause. Figure 5 is a circuit diagram of a full bridge electronic ballast with a complementary <1 source charging pump power factor correction in accordance with a preferred embodiment of the present invention. The fifth input saves the chopper circuit, the rectification circuit, the full bridge inverter, and the output capacitor Cde shown in the second figure, which is the first The difference in the figure is that the pFC stage in the figure is replaced by a complementary continuous current mode charging pump PFC circuit, and the complementary continuous current mode electric house source charging pump PFC circuit includes the inductor LPfc and Lx, the diode Dx, Dy Bu Dy2 'Dr and Dr2 and capacitors Cinl and Cin2. The full-bridge electronic ballast, shown in Figure 5, utilizes the previously mentioned charging pump power factor correction technique, combined with the full-bridge electronic ballast straight power factor and achieves good harmonic distortion. In the fifth figure, the electronic ballast includes a first continuous current mode charging pump power factor correction (PFC) circuit, including a first inductor Lpfc, having a first pole, a first diode Dx, An anode and a cathode, wherein the anode is coupled to the first end of the first inductor Lpfc, and a second diode
Dyl，具一陽極與一陰極，其中該陽極耦合於該第一二極 體Dx之該陰極，以及一第一電容Cinl，具一第一端與一 第二端，其中該第一端耦合於該第二二極體Dyl之該陽 極，一箝位電路，包括一第三二極體Drl，具一陽極與一 陰極，其中該陰極耦合於該第二二極體Dyl之該陰極，以 201216782 及一第四二極體Dr2,具一陽極與一陰極，其中該陰極耦 合於該第三二極體Drl之該陽極，一第二電感Lx，具一第 一端耦合於該第四二極體Dr2之該陰極與該第一電容Cinl 之該第二端，一第二連續電流模式充電幫浦PFC電路，包 括一第二電容Cin2，具一第一端與一第二端，其中該第一 端耦合於該第一電容Cinl之該第二端，以及一第五二極體 Dy2，具一陽極與一陰極，其中該陽極耦合於該第四二極 體Dr2之該陽極，且該陰極耦合於該第二電容Cin2之該第 * 二端，以及一全橋式逆變器，耦合於該第一與該第二連續 電流模式充電幫浦PFC電路，且產生一交流輸出電壓。 如第五圖所示之該電子安定器更包括一接收一交流輸 入電壓之濾波電路，以及一耦合於該濾波電路之整流電 路，其中該全橋式逆變器具一第一與一第二輸入端以及一 中點，該第一電感Lpfc與該第二電感Lx均具一第二端， 該第一電感Lpfc之該第二端與該第二電容Cin2之該第二 φ 端耦合於該整流電路，該第二電感Lx之該第二端耦合於該 中點，該第二二極體Dyl之該陰極耦合於該全橋式逆變器 之該第一輸入端，且該全橋式逆變器之該第二輸入端耦合 於該第四二極體Dr2之該陽極。 請參閱第五圖所示之該電子安定器，其特徵重點可上位 化為：包含一第一連續電流模式充電幫浦功率因數修正(PFC)電 路，包括一第一電感Lpfc ’具一第一端，一第一二極體Dx，具一 陽極與一陰極，其中該陽極耦合於該第一電感Lpfc之該第一端， 一第二二極體Dyl，具一陽極與一陰極，其中該陽極耦合於該第 ς 201216782 一二極體Dx之該陰極，以及一第一電容Cinl，具一第一端與 一第二端，其中該第一端耦合於該第二二極體Dyl之該陽 極，一第二電感Lx，具一第一端耦合於該第一電容Cinl 之該第二端，一第二連續電流模式充電幫浦PFC電路，包 括一第二電容Cin2，具一第一端與一第二端，其中該第一 端耦合於該第一電容Cinl之該第二端，以及一第三二極體 Dy2，具一陰極耦合於該第二電容Cin2之該第二端，以及 一全橋式逆變器，耦合於該第一與該第二連續電流模式充 電幫浦PFC電路，且產生一交流輸出電壓。 在第五圖中，該電子安定器更包括一箝位電路，其中 該第三二極體Dy2更包括一陽極，且該箝位電路包括一第 四二極體Drl，具一陽極與一陰極，其中該陰極耦合於該 第二二極體Dyl之該陰極，且該陽極耦合於該第二電感Lx 之該第一端，以及一第五二極體Dr2,具一陽極與一陰極， 其中該陰極耦合於該第四二極體Drl之該陽極，且該陽極 耦合於該第三二極體Dy2之該陽極。 如第五圖所示之該電子安定器更包括一接收一交流輸 入電壓之濾波電路，一第三電容Cdc以及一耦合於該濾波 電路之整流電路，其中該全橋式逆變器具一第一與一第二 輸入端、一第一與一第二輸出端以及一中點，該第一電感 Lpfc與該第二電感Lx均具一第二端，該第一電感Lpfc之 該第二端與該第二電容Cin2之該第二端耦合於該整流電 路，該第二電感Lx之該第二端耦合於該中點，該第二二極 體Dyl之該陰極耦合於該全橋式逆變器之該第一輸入端， 201216782 該全橋式逆變器之該第二輸入端耦合於該第五二極體Dr2 之該陽極，且該第三電容Cdc並聯電連接於該全橋式逆變 器之該第一與該第二輸出端。該第三電容Cdc為一輸出電容。 在第五圖中所示之該電子安定器，其特徵重點亦可上位 化為：包含一第一連續電流模式充電幫浦功率因數修正 (PFC)電路，包括一第一電感Lpfc，具一第一端，一第一二 極體Dx，具一陽極與一陰極，其中該陽極耦合於該第一電 感Lpfc之該第一端，一第二二極體Dyl，具一陽極與一陰 * 極，其中該陽極耦合於該第一二極體Dx之該陰極，以及 一第一電容Cinl，具一第一端與一第二端，其中該第一端 耦合於該第二二極體Dyl之該陽極，一箝位電路，包括一 第三二極體Drl，具一陽極與一陰極，其中該陰極耦合於 該第二二極體Dyl之該陰極，以及一第四二極體Dr2，具 一陽極與一陰極，其中該陰極耦合於該第三二極體Drl之 該陽極，一第二電感Lx，具一第一端耦合於該第四二極體 φ Dr2之該陰極與該第一電容Cinl之該第二端，以及一全橋 式逆變器，耦合於該第一連續電流模式充電幫浦PFC電路 與該箝位電路，且產生一交流輸出電壓。 參見第五圖，該電子安定器更包括一第二連續電流模 式充電幫浦功率因數修正（PFC)電路，包括一第二電容 Cin2，具一第一端與一第二端，其中該第一端耦合於該第 一電容Cinl之該第二端，以及一第五二極體Dy2，具一陽 極與一陰極，其中該陽極耦合於該第四二極體Dr2之該陽 極，且該陰極耦合於該第二電容Cin2之該第二端。 201216782 如第五圖所示之該電子安定器更包括一接收一交流 輸入電壓ϋ電路’以—搞合於該㈣電路之整流電 路，其中該全橋式逆變器具—第―與—第二輸人端以及〆 中點，該第-電感LpfC與該第二電感“均具—第二端， 該第-電感Lpfc之該第二端與該第二電容㈤之該第二 端輕合於該錢電路，該第二料Lx之該第二_合於該 中點，該第二二極體Dyl之該陰_合於該全橋式逆變器Dyl having an anode and a cathode, wherein the anode is coupled to the cathode of the first diode Dx, and a first capacitor Cin1 having a first end and a second end, wherein the first end is coupled to The anode of the second diode Dyl, a clamping circuit comprising a third diode Tr1, having an anode and a cathode, wherein the cathode is coupled to the cathode of the second diode Dyl to 201216782 And a fourth diode Dr2 having an anode and a cathode, wherein the cathode is coupled to the anode of the third diode Drl, and a second inductor Lx having a first end coupled to the fourth diode The cathode of the body Dr2 and the second end of the first capacitor Cin1, a second continuous current mode charging pump PFC circuit, comprising a second capacitor Cin2 having a first end and a second end, wherein the first end One end coupled to the second end of the first capacitor Cin1, and a fifth diode Dy2 having an anode and a cathode, wherein the anode is coupled to the anode of the fourth diode Dr2, and the cathode Coupled to the second terminal of the second capacitor Cin2, and a full bridge inverter coupled to The first and second continuous current mode PFC charge pump circuit, and generates an AC output voltage. The electronic ballast as shown in FIG. 5 further includes a filter circuit for receiving an AC input voltage, and a rectifier circuit coupled to the filter circuit, wherein the full bridge inverter device has a first input and a second input The second inductor Lpfc and the second inductor Lx each have a second end, and the second end of the first inductor Lpfc and the second φ terminal of the second capacitor Cin2 are coupled to the rectification a second end of the second inductor Lx coupled to the midpoint, the cathode of the second diode Dyl being coupled to the first input of the full bridge inverter, and the full bridge inverse The second input of the transformer is coupled to the anode of the fourth diode Dr2. Referring to the electronic ballast shown in FIG. 5, the feature focus can be up-converted to include a first continuous current mode charging pump power factor correction (PFC) circuit, including a first inductor Lpfc' having a first a first diode Dx having an anode and a cathode, wherein the anode is coupled to the first end of the first inductor Lpfc, and a second diode Dyl has an anode and a cathode, wherein the anode An anode is coupled to the cathode of the second diode Dx of the second layer 201216782, and a first capacitor Cin1 having a first end and a second end, wherein the first end is coupled to the second diode Dyl An anode, a second inductor Lx having a first end coupled to the second end of the first capacitor Cin1, and a second continuous current mode charging pump PFC circuit including a second capacitor Cin2 having a first end And a second end, wherein the first end is coupled to the second end of the first capacitor Cin1, and the third diode Dy2 has a cathode coupled to the second end of the second capacitor Cin2, and a full bridge inverter coupled to the first and second continuous current modes Electric pump PFC circuit, and generates an AC output voltage. In the fifth figure, the electronic ballast further comprises a clamping circuit, wherein the third diode Dy2 further comprises an anode, and the clamping circuit comprises a fourth diode Drl having an anode and a cathode The cathode is coupled to the cathode of the second diode Dyl, and the anode is coupled to the first end of the second inductor Lx, and a fifth diode Dr2 has an anode and a cathode, wherein The cathode is coupled to the anode of the fourth diode Drl, and the anode is coupled to the anode of the third diode Dy2. The electronic ballast as shown in FIG. 5 further includes a filter circuit for receiving an AC input voltage, a third capacitor Cdc and a rectifier circuit coupled to the filter circuit, wherein the full bridge inverter device is first The first inductor Lpfc and the second inductor Lx each have a second end, and the second end of the first inductor Lpfc is coupled to a second input terminal, a first output terminal, and a second output terminal. The second end of the second capacitor Cin2 is coupled to the rectifying circuit, the second end of the second inductor Lx is coupled to the midpoint, and the cathode of the second diode Dyl is coupled to the full bridge inverter The first input end of the full bridge inverter is coupled to the anode of the fifth diode Dr2, and the third capacitor Cdc is electrically connected in parallel to the full bridge inverse The first and the second output of the transformer. The third capacitor Cdc is an output capacitor. The electronic ballast shown in the fifth figure may also be characterized as: a first continuous current mode charging pump power factor correction (PFC) circuit, including a first inductor Lpfc, having a first One end, a first diode Dx having an anode and a cathode, wherein the anode is coupled to the first end of the first inductor Lpfc, and a second diode Dyl has an anode and a cathode The anode is coupled to the cathode of the first diode Dx, and a first capacitor Cin1 has a first end and a second end, wherein the first end is coupled to the second diode Dyl The anode, a clamping circuit, includes a third diode Tr1 having an anode and a cathode, wherein the cathode is coupled to the cathode of the second diode Dyl, and a fourth diode Dr2, An anode and a cathode, wherein the cathode is coupled to the anode of the third diode DDR, a second inductor Lx having a first end coupled to the cathode of the fourth diode φ Dr2 and the first The second end of the capacitor Cin1, and a full bridge inverter coupled to the first continuous current mode PFC charge pump circuit and the clamp circuit, and generates an AC output voltage. Referring to FIG. 5, the electronic ballast further includes a second continuous current mode charging pump power factor correction (PFC) circuit, including a second capacitor Cin2 having a first end and a second end, wherein the first The end is coupled to the second end of the first capacitor Cin1, and the fifth diode Dy2 has an anode and a cathode, wherein the anode is coupled to the anode of the fourth diode Dr2, and the cathode is coupled The second end of the second capacitor Cin2. 201216782 The electronic ballast as shown in FIG. 5 further includes a rectifying circuit for receiving an AC input voltage ϋ circuit to engage with the (four) circuit, wherein the full bridge inverter device - the first and the second In the input end and the midpoint of the ,, the first inductor LpfC and the second inductor “have a second end, the second end of the first inductor Lpfc and the second end of the second capacitor (f) are lightly coupled to the second end In the money circuit, the second portion of the second material Lx is at the midpoint, and the cathode of the second diode Dyl is combined with the full bridge inverter
之該第—輸人端，㈣全橋式逆變器之該第二輸入端耦合 於該第四二極體Dr2之該陽極。 如第五圖所:^之。亥電子安定器，m級電路是由兩組 互補的充電幫浦翻修正電路構成，其優點是prc賴上之電流 f皮頻率為操作解之兩倍，因此，可以使職小的歷滤波 =而Dr 1 Dr2則為箝位二極體，主要用於當開關截止時，電感 /的電抓為了維持續流，可藉由此等箝位二極體來提供—釋能之 路&並可以減4與充電幫浦電容⑽相互共振的時間，因此，The second input end of the (four) full-bridge inverter is coupled to the anode of the fourth diode Dr2. As shown in the fifth picture: ^. Hai electronic ballast, m-level circuit is composed of two sets of complementary charging pump flip correction circuit, the advantage is that the current f skin frequency of prc is twice the operating solution, therefore, can make the small calendar filter = The Dr 1 Dr2 is a clamped diode, which is mainly used to provide continuous flow of the inductor/electricity when the switch is turned off, and can be provided by the clamped diode to provide the energy release path & Can reduce the time between the resonance of the charging pump capacitor (10) and 4, therefore,
具有降低關電壓應力之魏i則是當有兩_狀充電幫浦 力因修正電路在同—邊時，絲防止雜電流喊至功因修正電 感(Lpfc)。 實施例 i.一種電子安定器，包含： 一第一連續電流模式充電幫浦功率因數修正 路，包括： 一第一電感，具一第一端； 第一一極體，具一陽極與一陰極，其中該陽極耦合 12 201216782 於該第一電感之該第一端； 一第二二極體，具一陽極與一陰極，其中該陽極搞合 於該第一二極體之該陰極；以及 一第一電容，具一第一端與一第二端，其中該第一端 耦合於該第二二極體之該陽極； 一箝位電路，包括： 一第三二極體，具一陽極與一陰極，其中該陰極耦合 於該第二二極體之該陰極；以及 * 一第四二極體，具一陽極與一陰極，其中該陰極耦合 於該第三二極體之該陽極； 一第二電感，具一第一端耦合於該第四二極體之該陰極 與該第一電容之該第二端； 一第二連續電流模式充電幫浦功率因數修正（PFC)電 路，包括： 一第二電容，具一第一端與一第二端，其中該第一端 φ 耦合於該第一電容之該第二端；以及 一第五二極體，具一陽極與一陰極，其中該陽極搞合 於該第四二極體之該陽極，且該陰極耦合於該第二電容之 該第二端；以及 一全橋式逆變器，耦合於該第一與該第二連續電流模式 充電幫浦PFC電路，且產生一交流輸出電壓。 2.根據實施例1所述之安定器更包括一接收一交流輸入電 壓之濾波電路，以及一耦合於該濾波電路之整流電路，其 中該全橋式逆變器具一第一與一第二輸入端以及一中點， 13 201216782 該第一電感與該第二電感均具一第二端，該第一電感之該 第二端與該第二電容之該第二端耦合於該整流電路，該第 二電感之該第二端耦合於該中點，該第二二極體之該陰極 耦合於該全橋式逆變器之該第一輸入端，且該全橋式逆變 器之該第二輸入端耦合於該第四二極體之該陽極。 3. —種電子安定器，包含： 一第一連續電流模式充電幫浦功率因數修正(PFC)電 路，包括： 一第一電感，具一第一端； 一第一二極體，具一陽極與一陰極，其中該陽極麵合 於該第一電感之該第一端； 一第二二極體，具一陽極與一陰極，其中該陽極麵合 於該第一二極體之該陰極；以及 一第一電容，具一第一端與一第二端，其中該第一端 麵合於該第二二極體之該陽極； 一第二電感，具一第一端耦合於該第一電容之該第二 端； 一第二連續電流模式充電幫浦功率因數修正(PFC)電 路，包括： 一第二電容，具一第一端與一第二端，其中該第一端 耦合於該第一電容之該第二端；以及 一第三二極體，具一陰極耦合於該第二電容之該第二 端；以及 一全橋式逆變器，耦合於該第一與該第二連續電流模式 201216782 充電幫浦PFC電路，且產生一交流輸出電壓。 4. 根據以上任一實施例所述之安定器更包括一箝位電路， 其中該第三二極體更包括一陽極，且該箝位電路包括： 一第四二極體，具一陽極與一陰極，其中該陰極輕合 於該第二二極體之該陰極，且該陽極耦合於該第二電感之 該第一端；以及 一第五二極體，具一陽極與一陰極，其中該陰極耦合 於該第四二極體之該陽極，且該陽極耦合於該第三二極體 之該陽極。 5. 根據以上任一實施例所述之安定器更包括一接收一交流 輸入電壓之濾波電路，一第三電容以及一耦合於該濾波電 路之整流電路，其中該全橋式逆變器具一第一與一第二輸 入端、一第一與一第二輸出端以及一中點，該第一電感與 該第二電感均具一第二端，該第一電感之該第二端與該第 二電容之該第二端耦合於該整流電路，該第二電感之該第 二端耦合於該中點，該第二二極體之該陰極耦合於該全橋 式逆變器之該第一輸入端，該全橋式逆變器之該第二輸入 端耦合於該第五二極體之該陽極，且該第三電容並聯電連 接於該全橋式逆變器之該第一與該第二輸出端。 6. 根據以上任一實施例所述之安定器，其中該第三電容為 一輸出電容。 7. —種電子安定器，包含： 一第一連續電流模式充電幫浦功率因數修正（PFC)電 路，包括： 15 201216782 一第一電感，具一第一端； 一第一二極體，具一陽極與一陰極，其中該陽極耦合 於該第一電感之該第一端； 一第二二極體，具一陽極與一陰極，其中該陽極耦合 於該第一二極體之該陰極；以及 一第一電容，具一第一端與一第二端，其中該第一端 耦合於該第二二極體之該陽極； 一箝位電路，包括： 一第三二極體，具一陽極與一陰極，其中該陰極麵合 於該第二二極體之該陰極；以及 一第四二極體，具一陽極與一陰極，其中該陰極耦合 於該第三二極體之該陽極； 一第二電感，具一第一端耦合於該第四二極體之該陰極 與該第一電容之該第二端；以及 一全橋式逆變器，耦合於該第一連續電流模式充電幫浦 PFC電路與該箝位電路，且產生一交流輸出電壓。 8. 根據以上任一實施例所述之安定器更包括一第二連續電 流模式充電幫浦功率因數修正(PFC)電路，包括： 一第二電容，具一第一端與一第二端，其中該第一端 耦合於該第一電容之該第二端；以及 一第五二極體，具一陽極與一陰極，其中該陽極耦合 於該第四二極體之該陽極，且該陰極耦合於該第二電容之 該第二端。 9. 根據以上任一實施例所述之安定器更包括一接收一交流 201216782 輸入電壓之濾波電路，以及一耦合於該濾波電路之整流電 路，其中該全橋式逆變器具一第一與一第二輸入端以及一 中點，該第一電感與該第二電感均具一第二端，該第一電 感之該第二端與該第二電容之該第二端耦合於該整流電 路，該第二電感之該第二端耦合於該中點，該第二二極體 之該陰極耦合於該全橋式逆變器之該第一輸入端，且該全 橋式逆變器之該第二輸入端耦合於該第四二極體之該陽 極。 綜上所述，本發明提供一種互補連續電流模式充電幫 浦功因修正電路的全橋電子安定器，因其使用充電幫浦功 率因數修正技術，故擁有下述之優點：可減少電路所需元 件數，進而降低電路成本，且具低輸入電流諧波失真與高 功因，並可減小諸如PFC電感與EMI濾波器等元件的體 積，以及降低開關切換與二極體之導通損失，故其確實具 有進步性與新穎性。 是以，縱使本案已由上述之實施例所詳細敘述而可由熟 悉本技藝之人士任施匠思而為諸般修飾，然皆不脫如附申 請專利範圍所欲保護者。 【圖式簡單說明】 第一圖：其係顯示一習知之兩級式電子安定器之電路圖； 第二圖：其係顯示一習知之具不連續電流模式充電幫浦功 因修正電路的半橋式電子安定器之電路圖； 第三圖：其係顯示一習知之連續電流模式之電壓源充電幫 浦功率因數修正電路的等效電路之電路圖； 17 201216782 第四圖：其係顯示一習知之連續電流模式之電流源充電幫 浦功率因數修正電路的等效電路之電路圖；以及 第五圖：其係顯示一依據本發明構想之較佳實施例的具互 補連續電流模式之電壓源充電幫浦功率因數修正的全橋式電子安 定器之電路圖。 【主要元件符號說明】The Wei i with the reduced voltage stress is that when there are two _-shaped charging pump forces, the wire prevents the noise from being called to the correcting inductance (Lpfc) due to the correction circuit being on the same side. Embodiment 1. An electronic ballast comprising: a first continuous current mode charging pump power factor correction circuit, comprising: a first inductor having a first end; a first one body having an anode and a cathode The anode coupling 12 201216782 is at the first end of the first inductor; a second diode having an anode and a cathode, wherein the anode is engaged with the cathode of the first diode; and a first capacitor having a first end and a second end, wherein the first end is coupled to the anode of the second diode; a clamping circuit comprising: a third diode having an anode and a cathode, wherein the cathode is coupled to the cathode of the second diode; and a fourth diode having an anode and a cathode, wherein the cathode is coupled to the anode of the third diode; a second inductor having a first end coupled to the cathode of the fourth diode and the second end of the first capacitor; a second continuous current mode charging pump power factor correction (PFC) circuit comprising: a second capacitor having a first end and a second end, The first end φ is coupled to the second end of the first capacitor; and a fifth diode having an anode and a cathode, wherein the anode is coupled to the anode of the fourth diode, and the anode A cathode is coupled to the second end of the second capacitor; and a full bridge inverter coupled to the first and second continuous current mode charge pump PFC circuits and generating an AC output voltage. 2. The ballast according to embodiment 1 further comprising a filter circuit for receiving an AC input voltage, and a rectifier circuit coupled to the filter circuit, wherein the full bridge inverter device has a first and a second input And a second point, the first inductor and the second inductor each have a second end, the second end of the first inductor and the second end of the second capacitor are coupled to the rectifier circuit, The second end of the second inductor is coupled to the midpoint, the cathode of the second diode is coupled to the first input of the full bridge inverter, and the full end of the full bridge inverter A second input is coupled to the anode of the fourth diode. 3. An electronic ballast comprising: a first continuous current mode charging pump power factor correction (PFC) circuit comprising: a first inductor having a first end; a first diode having an anode And a cathode, wherein the anode is coupled to the first end of the first inductor; a second diode having an anode and a cathode, wherein the anode is coupled to the cathode of the first diode; And a first capacitor having a first end and a second end, wherein the first end is coupled to the anode of the second diode; a second inductor having a first end coupled to the first a second continuous current mode charging pump power factor correction (PFC) circuit, comprising: a second capacitor having a first end and a second end, wherein the first end is coupled to the a second end of the first capacitor; and a third diode having a cathode coupled to the second end of the second capacitor; and a full bridge inverter coupled to the first and second The continuous current mode 201216782 charges the pump PFC circuit and produces an AC output voltage. 4. The ballast according to any of the above embodiments further includes a clamping circuit, wherein the third diode further includes an anode, and the clamping circuit comprises: a fourth diode having an anode and a cathode, wherein the cathode is lightly coupled to the cathode of the second diode, and the anode is coupled to the first end of the second inductor; and a fifth diode having an anode and a cathode, wherein The cathode is coupled to the anode of the fourth diode, and the anode is coupled to the anode of the third diode. 5. The ballast according to any of the above embodiments further includes a filter circuit for receiving an AC input voltage, a third capacitor and a rectifier circuit coupled to the filter circuit, wherein the full bridge inverter device a second input end, a first output and a second output end, and a midpoint, the first inductor and the second inductor each have a second end, the second end of the first inductor and the second The second end of the second capacitor is coupled to the rectifier circuit, the second end of the second inductor is coupled to the midpoint, and the cathode of the second diode is coupled to the first of the full bridge inverter An input end, the second input end of the full bridge inverter is coupled to the anode of the fifth diode, and the third capacitor is electrically connected in parallel to the first and the second bridge inverter Second output. 6. The ballast of any of the preceding embodiments, wherein the third capacitor is an output capacitor. 7. An electronic ballast comprising: a first continuous current mode charging pump power factor correction (PFC) circuit comprising: 15 201216782 a first inductor having a first end; a first diode, An anode and a cathode, wherein the anode is coupled to the first end of the first inductor; a second diode having an anode and a cathode, wherein the anode is coupled to the cathode of the first diode; And a first capacitor having a first end and a second end, wherein the first end is coupled to the anode of the second diode; a clamping circuit comprising: a third diode, having a An anode and a cathode, wherein the cathode is coupled to the cathode of the second diode; and a fourth diode having an anode and a cathode, wherein the cathode is coupled to the anode of the third diode a second inductor having a first end coupled to the cathode of the fourth diode and the second end of the first capacitor; and a full bridge inverter coupled to the first continuous current mode Charging the pump PFC circuit with the clamp circuit and generating an AC output . The ballast according to any of the above embodiments further includes a second continuous current mode charging pump power factor correction (PFC) circuit, including: a second capacitor having a first end and a second end, The first end is coupled to the second end of the first capacitor; and a fifth diode having an anode and a cathode, wherein the anode is coupled to the anode of the fourth diode, and the cathode Coupled to the second end of the second capacitor. 9. The ballast according to any of the above embodiments further includes a filter circuit for receiving an AC 201216782 input voltage, and a rectifier circuit coupled to the filter circuit, wherein the full bridge inverter device is first and first The second input end and the second end of the second inductor have a second end, and the second end of the first inductor and the second end of the second capacitor are coupled to the rectifier circuit. The second end of the second inductor is coupled to the midpoint, the cathode of the second diode is coupled to the first input of the full bridge inverter, and the full bridge inverter A second input is coupled to the anode of the fourth diode. In summary, the present invention provides a full-bridge electronic ballast for a complementary continuous current mode charging pump power factor correction circuit. Since it uses a charging pump power factor correction technology, it has the following advantages: it can reduce the circuit required The number of components, which in turn reduces circuit cost, has low input current harmonic distortion and high power factor, and can reduce the size of components such as PFC inductors and EMI filters, as well as reduce switching losses and conduction losses of diodes. It is indeed progressive and novel. Therefore, even though the present invention has been described in detail by the above-described embodiments, it can be modified by those skilled in the art, and is not intended to be protected by the scope of the patent application. [Simple diagram of the diagram] The first diagram: it shows a circuit diagram of a conventional two-stage electronic ballast; the second diagram: it shows a conventional half bridge with a discontinuous current mode charging pump power correction circuit Circuit diagram of an electronic ballast; Fig. 3 is a circuit diagram showing an equivalent circuit of a conventional continuous current mode voltage source charging pump power factor correction circuit; 17 201216782 Fig. 4: The system shows a conventional continuous Circuit diagram of an equivalent circuit of a current mode charging current power factor correction circuit of a current mode; and a fifth diagram showing a voltage source charging pump power with a complementary continuous current mode in accordance with a preferred embodiment of the present invention A circuit diagram of a factor-corrected full-bridge electronic ballast. [Main component symbol description]