472505 五、發明說明(l) [創作背景] 電子安定器利用電子開關高頻點燈,整體光效比 (lumens per watt, LPW)較傳統安定器高。又電子安定 器體積小、重量輕且不閃燦,已逐漸取代傳統安定器。近 來歐美各國對於電子裝置所產生之電流諧波訂定法規加以 限制。為符合這些標準,電子安定器必須要有很高的功率 因數。 為達到上述需求’ 一般電子安定器採用功率因數矯正 器與半橋式高頻變流器(inverter )串級(cascade),所 使用主動開關晶體(actiVe switch)最少為三個。且半橋 式高頻變流器需要隔離型驅動電路(is〇lated driye:r ),為降低安定器成本,驅動電路皆採用自激式 (self-excited),而自激式驅動電路較難達到調光功 近來已有單晶式電子安定器能同時具有功率因數矯正 器以及兩頻變流器以及調光功能。但是習見 安定器仍有以下問題: 早曰曰Λ电于 1 .所用之功率因數矯正方式為非連續輸入電流型 (=nti:u! jn】ut current)。安定器輸入電流漣波 非吊大,谷易k成電磁干擾問題。為解決 所需濾波器體積較大。 节也丁傻问墙 2 .安定器主開關須負荷較大峰值電流。 [創作概要] 針對這些缺點,本發明提出—種新的單晶式電子安定 472505 五'發明說明⑵ _ —- 器。此安定器能滿足功率因數矯正、高頻變流器以及調光 功能。並且能實現連續性輸入電流之功率因數矯正方式 (continuous input current power factor correction CICPFC)。降低安定器輸入電流漣波,減少濾波 ’ 主開關峰值電流。 積 所提單晶式電子安定器電路圖如第一圖以及第二圖。 交流電源Vin經過電磁干擾濾波器Lf與以以及整流器 整流變成直流電。功因矯正電感L作用在於提高功率因 數,並且將電能直接注入儲能電容C1與以中。快速二極體 Μ之作用在防止逆向電流發生。本發明之單晶式電子安定 器,用一個開關晶體S以及一個二極體〇,串接於兩個儲能 電容C1與C2兩端;兩個電感器L1與L2為能量循環電感,對 兩個電容C1與C2形成充放電作用。電感L3與[1及。互相耦 合為一變壓器T1。此變壓器功用為升降壓,若不升降壓則 電感L3與L1或L2合併為一電感。共振電路包含電感Lr與螢 光燈管FL串接,起動電容cp並接於螢光燈管FL。可加裝直 流阻隔電容(DC blocking capacitor)與電感Lr串接。充 電幫浦((:1^^611111^)電容(:連接於功因矯正電感[與安定 器輸出端之間,當螢光燈輸出高頻交流電時,無須複雜控 制電路就可用來產生連續性輸入電流之功因矯正 (CICPFC)。充電幫浦電谷c為高週波(high frequency)電 容。第二圖之電路接法能產生與第一圖之電子安定器相同 功能’但控制訊號Vg與螢光燈管几共地(common ground)。第一圖之二極體])丨與])比第二圖之二極體“與^472505 V. Description of the invention (l) [Creative background] Electronic ballasts use electronic switches to turn on high-frequency lights. The overall luminous efficiency (lumens per watt, LPW) is higher than traditional ballasts. The electronic ballast is small, light and non-flashing, and has gradually replaced the traditional ballast. Recently, European and American countries have restricted the regulations on current harmonics generated by electronic devices. To meet these standards, electronic ballasts must have a high power factor. In order to achieve the above demand, a general electronic ballast uses a power factor corrector and a half-bridge high-frequency inverter (cascade), and at least three actiVe switches are used. In addition, the half-bridge high-frequency converter requires an isolated driving circuit (isolated driye: r). In order to reduce the cost of the ballast, the driving circuits are self-excited, which is more difficult. Achieving dimming power Recently, there have been single-crystal electronic ballasts that can simultaneously have a power factor corrector, a two-frequency converter, and a dimming function. However, the conventional stabilizer still has the following problems: As early as said, Λ electric at 1. The power factor correction method used is discontinuous input current type (= nti: u! Jn] ut current). The input current ripple of the ballast is not large, and Gu Yi k becomes an electromagnetic interference problem. To solve the problem, the required filter volume is large. Jie also asked the wall stupidly 2. The main switch of the ballast must load a larger peak current. [Creation summary] In view of these shortcomings, the present invention proposes a new single-crystal electronic stabilizer 472505 Fifth invention description _ _ --- device. This ballast can meet the power factor correction, high frequency converter and dimming functions. And can realize continuous input current power factor correction (continuous input current power factor correction CICPFC). Reduce the input current ripple of the ballast and reduce the peak current of the filter's main switch. The circuit diagrams of the crystal electronic ballasts of the company are shown in the first and second figures. The AC power source Vin is rectified by the electromagnetic interference filter Lf and the rectifier into DC power. The role of the power factor correction inductor L is to improve the power factor and directly inject electric energy into the energy storage capacitors C1 and Y1. The role of the fast diode M is to prevent reverse current from occurring. The single-crystal electronic ballast of the present invention uses a switching crystal S and a diode 0, which are connected in series to two ends of two energy storage capacitors C1 and C2; the two inductors L1 and L2 are energy circulating inductors. The capacitors C1 and C2 form a charging and discharging effect. Inductance L3 and [1 and. They are coupled to each other as a transformer T1. The function of this transformer is step-up and step-down. If the step-up and step-down are not performed, the inductor L3 and L1 or L2 are combined into one inductor. The resonance circuit includes an inductor Lr connected in series with the fluorescent tube FL, and a starting capacitor cp is connected in parallel with the fluorescent tube FL. A DC blocking capacitor can be added in series with the inductor Lr. Charging pump ((: 1 ^^ 611111 ^) capacitor (: connected to the power factor correction inductor [and ballast output terminal, when the fluorescent lamp outputs high-frequency AC power, no complicated control circuit can be used to generate continuity The power factor correction of the input current (CICPFC). The charging pump valley c is a high frequency capacitor. The circuit connection of the second diagram can produce the same function as the electronic ballast of the first diagram, but the control signal Vg and The fluorescent tube has a common ground. The diode in the first picture]) 丨 and]) is more than the diode in the second picture "and ^
从π規明(3) __ 變松a於雙生一極體(twin diode)包裝中。 . 變控制訊號之艏盎+主 〇衣τ欲調光時可改 [HI 4·、篪頻率或責任週期。 阔式之說明] 電幫浦電子安定器電路圖。 [圖式Λ: f浦電子安定器另-種接法。 啤' 之詳細說明] 埯沄。 第圖與第二圖=單晶式充電幫浦電子安 •........輪入吞达带、、広.^ & 〇〇 . 裔電路圖. v ιη.. Lf, Cf Da,Db,Dc,DdFrom π specification (3) __ becomes loose in a twin diode package. When changing the control signal, you can change [HI 4 ·, the frequency or the duty cycle when you want to adjust the light. Wide description] Electric pump electronic ballast circuit diagram. [Schema Λ: f-pu electronic ballast-another connection method. Beer's detailed description] 埯 沄. The first and second diagrams = single-crystal charging pump electronics .............. into the tunda belt, 広. ^ &Amp; 〇〇. The circuit diagram. V ιη .. Lf, Cf Da , Db, Dc, Dd
Dl D· Cl S. Vg LI L3 T1 Lr C. FL Cp C2 L2 輪入交流電源,可為單c圖 電磁干擾渡波器,過遽高頻U電源 整流器’橋式整流子或其他整流裝置。 功因矯正電感。 逆向防止二極體。 一極體。 儲能電容。 主動開關晶體。 控制訊號。 忐量循環電感,可互相耦合成變壓器。 電感,可與Ll,L2互相耦合成變壓器。 變壓器。 共振電感,可與變壓器T1耦合。 充電幫浦電容 螢光燈管,多個螢光燈管可串並 啟動電容,多管點燈時有多個。Dl D · Cl S. Vg LI L3 T1 Lr C. FL Cp C2 L2 Wheel-in AC power supply, which can be single-c electromagnetic interference wave transformer, high-frequency U power supply rectifier ’bridge rectifier or other rectifier. Work factor correction inductance. Reverse prevents the diode. A polar body. Energy storage capacitor. Active switching crystal. Control signal. A large amount of loop inductance can be coupled to each other into a transformer. The inductor can be coupled to L1 and L2 to form a transformer. transformer. Resonant inductance can be coupled with transformer T1. Charging pump capacitors Fluorescent tubes. Multiple fluorescent tubes can be connected in series to start capacitors.
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