200939889 九、發明說明： 【發明所屬之技術領域】 本發明係與氣體放電螢光燈有關，特別是指一種配合 燈絲之氣體放電螢光燈調光搭配電路。 5【先前技術】 按’目前習知的市售可調光的氣體放電螢光燈、或是 螢光燈管用的調光式電子安定器，通常使用1C(積體電路) 晶片配合内含有電控開關(例如雙向矽控體TRIAC)的市售 標準調光器來進行調光控制，其電路内部含有複數的電 ίο容、電阻、以及電感。而氣體放電螢光燈通常是由一燈管 與一塑膠腔體組合而成，電路則是置於該塑膠腔體内。 然而，在調光的過程中，在電控開關觸發導通時，對 電容的充電會產生一個幾安培的脈衝電流，該脈衝電流會 與電感作用而引起很大的振鈴波形，其負值往往會超過輸 is入的電源電壓，而引起電控開關的關閉與導通，進而導致 氣體放電螢光燈的光閃。因此一般電路中必須串聯一個阻 尼電阻，以降低振鈐波形所引以的光閃。但是，這個阻尼 電阻在工作時，往往會發出很大的熱量，消耗電源的功率， 造成能源上的浪費。另外，也會進一步使得氣體放電螢光 2〇燈的塑膠腔體内的溫度上升。 【發明内容】 、本發明之主要目的在於設計一種配合熱陰極氣體放電 螢光燈解決連接電控開關調光燈光閃的電子電路，其電路 200939889 為-燈絲的-端連接於該電源輸入經充 電電容的一端，直 接子且絲加熱’並具有能源再利用和避免溫升功效設計的 電子電路® 本發月之人目的在於提供一種配合燈絲之氣體放電 5 I光燈調光搭西&電路，其可避免塑膠腔體内的溫度上升。 緣是為了達成前述目的，依據本發明所提供之一種 〇 燈絲之氣體放電螢光燈調光搭配電路，包含有：一譜 振單元，主要具有一第一電容以及一第二電容相串聯，以 及具有-第-電感並聯於該第一電容以及該第二電容的串 W聯組合；-整流單元，連接於該諸振單元，用以將交流電 轉為直流電；-充電迴路，具有至少一充電電容，連接於 該整机單元，-半橋輸出單元，主要具有二電控開關且相 串聯’連接於該充電迴路，各該電控開關具有一控制端， 各該控制端分別連接於一振盪單元；其特徵在於··一燈管， 鬌15連接於該充電迴路，該燈管内部具有二燈絲，其中一燈絲 的-端連接於該充電電容的一端。藉此直接對燈絲加熱， 解決燈管連接電控開關而發生的光閃，具有能源再利用和 避免溫升的功效。 20【實施方式】 為了詳細說明本發明之構造及特點所在，茲舉以下之 一較佳實施例並配合圖式說明如后，其中： 如第一圖所示，本發明一較佳實施例所提供之一種配 σ熱陰極氣禮放電榮光燈調光搭配電路1〇，可用以搭配一 200939889 61來進行調光功能，該配合燈絲之氣體放電螢 先燈調光搭配電路1G主要由1振單元U、-整流單元 2卜-充電迴路31、—半橋輸出單元4卜以及 ！ 所組成，其中： 5 該譜振單元11，具有一第-電容C1以及-第二電容 C2相串聯’以及具有—第—電感u並聯於該第—電容〇 ❹ 以及該第二電容C2的串聯組合。 該整流單元2卜連接於該譜振單元u，用以將交流電 轉為直流電。本實施例中該整流單元21係為一整流器。 1〇 該充電迴路31，具有一充電電容Cc，連接於該整流單 元21。 該半橋輸出單元41，主要具有二電控開關（dectric control switch)Ql，Q2且相串聯，連接於該充電迴路31，各 該電控開關Q1，Q2具有一控制端G，各該控制端g分別連 眷I5接於一振盪單元45。本實施例中各該電控開關Q1，Q2係為 電晶體，各該振盪單元45係為一 RL振盡迴路，由一電 阻R以及一電感L串聯而成。 一電壓反饋單元46，連接於該充電迴路31，該電壓反 饋單元46具有一第二電感L2以及三電容C3，C4，C5相連 20接。 本發明其特徵在於：該燈管5卜連接於該充電迴路31， 該燈管51内部具有二燈絲52,53，其中第一燈絲52的一端 連接於該充電電容Cc的一端，藉此，該第一燈絲52即可 做為該充電迴路31的阻尼電阻。又，第二燈絲53的一端 200939889 5 ❹ 10 15 鬌 連接於該電壓反饋單元46。該燈管51於本實施例中係為一 氣體放電螢光燈，而具有塑膠腔體(圖中未示），本發明之電 路係設置於該塑膠腔體中，且該燈管51係露出於該塑膠腔 體，而氣體放電螢光燈具有塑膠腔體之結構亦屬習知’容 不贅述。 以下說明本發明之作動方式： 本發明在使用時係可配合連接一標準調光器61(示於 第二圖）’該標準調光器61係連接於該諧振單元π的電源 輸入端N1，N2,而可藉由該標準調光器61來調整該燈管51 的亮度。其中，由於該標準調光器61屬於習知構造，因此 其元件及動作原理容不贅述。 輸入電源時，電源經由該諧振單元Η、該整流單元2卜 該充電迴路31、以及該半橋輸出單元41，對該充電電容 Cc進行充電以及對該燈管51供電。 在進行調光時，將燈管51由亮調到暗的過程中，輸入 的功率逐步下降，时會產生振鈴現象，而引起很大的振 鈴波形H燈絲52即可做為阻尼電阻來降低振鈴波 形。同時，該振鈴波形作用於該第一燈絲52上所產生的大 量熱量也正好作用於該第—燈絲52本身，使熱能得到了再 利用的效果。此外，以燈絲代替阻尼電阻，可使得塑膠腔 體内不會雜尼電阻發熱，因此歸腔體内的溫度得以保 持在正常溫度的範圍内。 =上可知，本發明所可達成之功效在於·· 一、將必須雜的功率回收再:藉由本發明以燈 7 20 200939889 管的燈絲代替阻尼電阻的技術，解決了連接電控開關引起 的問題，再將原本必須消耗在阻尼電阻上的功率予以回 收，而再利用在燈絲上，能源的利用上更為有效益且符合 環保概念。 二、可避免氣體放電螢光燈的塑膠腔體内的溫度上 升：由於本發明以燈絲代替阻尼電阻，因此電路本身不需 要再設置阻尼電阻，因此不會有元件發熱的問題，用來放 置電路的塑膠腔體内即不會有溫度上升的問題。 200939889 【圖式簡單說明】 第一圖係本發明一較佳實施例之電路結構圖。 第二圖係本發明一較佳實施例之標準調光器電路結構 圖。200939889 IX. Description of the Invention: [Technical Field] The present invention relates to a gas discharge fluorescent lamp, and more particularly to a dimming and matching circuit for a gas discharge fluorescent lamp with a filament. 5 [Prior Art] According to the currently known commercially available dimmable gas discharge fluorescent lamps or dimming electronic ballasts for fluorescent tubes, 1C (integrated circuit) wafers are usually used. A commercially available standard dimmer of an electronically controlled switch (such as a bidirectional control body TRIAC) is used for dimming control, and the circuit internally contains a plurality of electrical capacitances, resistors, and inductances. The gas discharge fluorescent lamp is usually composed of a lamp tube and a plastic cavity, and the circuit is placed in the plastic cavity. However, in the process of dimming, when the electronically controlled switch is triggered to conduct, the charging of the capacitor generates a pulse current of several amps, which will react with the inductor to cause a large ringing waveform, and the negative value tends to Exceeding the power supply voltage of the input and output, causing the electronic control switch to be turned off and on, thereby causing the light of the gas discharge fluorescent lamp to flash. Therefore, a resistor must be connected in series in the general circuit to reduce the light flash caused by the vibrating waveform. However, this damping resistor often generates a large amount of heat during operation, consuming power of the power source and causing waste of energy. In addition, the temperature of the gas chamber of the gas discharge fluorescent lamp is further increased. SUMMARY OF THE INVENTION The main purpose of the present invention is to design an electronic circuit for cooperating with a hot cathode gas discharge fluorescent lamp to solve the dimming light flashing of the electronically controlled switch. The circuit 200939889 is connected to the power input of the filament. One end of the capacitor, which is directly heated by the wire and has an electronic circuit designed for energy reuse and temperature rise avoidance. The purpose of this month is to provide a gas discharge with a filament 5 I light dimming & It can avoid the temperature rise in the plastic chamber. In order to achieve the foregoing objective, a gas discharge fluorescent lamp dimming matching circuit according to the present invention includes: a spectral unit having a first capacitor and a second capacitor connected in series, and a series-W combination with a first-inductor connected in parallel with the first capacitor and the second capacitor; a rectifying unit connected to the vibrating unit for converting alternating current into direct current; and a charging circuit having at least one charging capacitor Connected to the whole unit, the half-bridge output unit, mainly has two electronically controlled switches and is connected in series to the charging circuit, each of the electronically controlled switches has a control end, and each of the control terminals is respectively connected to an oscillating unit The lamp is connected to the charging circuit, and the lamp tube has two filaments inside, and one end of the filament is connected to one end of the charging capacitor. Thereby, the filament is directly heated to solve the light flash which occurs when the lamp is connected to the electronic control switch, and has the effects of energy reuse and temperature rise avoidance. [Embodiment] In order to explain the structure and features of the present invention in detail, the following preferred embodiments are described with reference to the accompanying drawings, wherein: Provided with a sigma hot cathode gas ceremony discharge glory dimming matching circuit 1 〇, can be used with a 200939889 61 to carry out the dimming function, the gas discharge with the filament discharge dimming light dimming with the circuit 1G mainly by the 1 vibration unit U, - rectification unit 2 - charging circuit 31, - half bridge output unit 4 and! The composition, wherein: the spectral unit 11 has a first capacitor C1 and a second capacitor C2 connected in series 'and has a -first inductance u connected in parallel to the first capacitor 〇❹ and the second capacitor C2 combination. The rectifying unit 2 is connected to the spectral unit u for converting alternating current into direct current. In this embodiment, the rectifying unit 21 is a rectifier. The charging circuit 31 has a charging capacitor Cc connected to the rectifying unit 21. The half-bridge output unit 41 has two dectric control switches Q1 and Q2 connected in series to the charging circuit 31. Each of the electronic control switches Q1 and Q2 has a control terminal G, and each of the control terminals g is connected to an oscillating unit 45, respectively. In the embodiment, each of the electronic control switches Q1 and Q2 is a transistor, and each of the oscillating units 45 is an RL oscillating circuit, which is formed by a series connection of a resistor R and an inductor L. A voltage feedback unit 46 is connected to the charging circuit 31. The voltage feedback unit 46 has a second inductor L2 and three capacitors C3, C4 and C5 connected to each other. The present invention is characterized in that the lamp tube 5 is connected to the charging circuit 31, and the lamp tube 51 has two filaments 52, 53 therein, wherein one end of the first filament 52 is connected to one end of the charging capacitor Cc, whereby The first filament 52 can be used as the damping resistor of the charging circuit 31. Further, one end of the second filament 53 200939889 5 ❹ 10 15 鬌 is connected to the voltage feedback unit 46. In the embodiment, the lamp tube 51 is a gas discharge fluorescent lamp and has a plastic cavity (not shown). The circuit of the present invention is disposed in the plastic cavity, and the lamp 51 is exposed. In the plastic cavity, the structure of the gas discharge fluorescent lamp having a plastic cavity is also a matter of course. The following describes the mode of operation of the present invention: The present invention can be used in conjunction with a standard dimmer 61 (shown in the second figure). The standard dimmer 61 is connected to the power input terminal N1 of the resonating unit π. N2, and the brightness of the bulb 51 can be adjusted by the standard dimmer 61. Wherein, since the standard dimmer 61 belongs to a conventional structure, its components and operation principles are not described herein. When the power source is input, the power source charges the charging capacitor Cc and supplies power to the bulb 51 via the resonating unit Η, the rectifying unit 2, the charging circuit 31, and the half bridge output unit 41. During the dimming, when the lamp 51 is turned from light to dark, the input power is gradually decreased, and a ringing phenomenon occurs, which causes a large ringing waveform. The H filament 52 can be used as a damping resistor to reduce the ringing. Waveform. At the same time, the large amount of heat generated by the ringing waveform acting on the first filament 52 also acts on the first filament 52 itself, so that the heat energy is reused. In addition, replacing the damping resistor with a filament allows the plastic cavity to heat up without the resistance of the capacitor, so that the temperature inside the chamber can be maintained within the normal temperature range. It can be seen that the achievable effect of the present invention is that: 1. The power that must be mixed is recycled: by the invention, the technology of replacing the damping resistor with the filament of the lamp 7 20 200939889 solves the problem caused by connecting the electronically controlled switch. Then, the power that must be consumed on the damping resistor is recovered, and reused on the filament, the energy utilization is more effective and conforms to the concept of environmental protection. Second, the temperature rise in the plastic cavity of the gas discharge fluorescent lamp can be avoided: since the present invention replaces the damping resistor with a filament, the circuit itself does not need to be provided with a damping resistor, so there is no problem of component heating, and the circuit is placed. There is no problem of temperature rise in the plastic chamber. 200939889 [Simple Description of the Drawings] The first drawing is a circuit configuration diagram of a preferred embodiment of the present invention. The second figure is a circuit diagram of a standard dimmer circuit in accordance with a preferred embodiment of the present invention.
【主要元件符號說明】 10配合燈絲之氣體放電螢光燈調光搭配電路 10[Main component symbol description] 10 gas discharge fluorescent lamp dimming matching circuit with filament 10
11諧振單元 31充電迴路 45振盪單元 51燈管 53第二燈絲 C1第一電容 C3，C4，C5 電容 G控制端 L1第一電感 N1，N2電源輸入端 21整流單元 41半橋輸出單元 46電壓反饋單元 52第一燈絲 61標準調光器 C2第二電容 Cc充電電容 L電感 L2第二電感 Q1，Q2電控開關 R電阻 911 Resonant unit 31 Charging circuit 45 Oscillator unit 51 Lamp 53 Second filament C1 First capacitor C3, C4, C5 Capacitor G Control terminal L1 First inductor N1, N2 Power input terminal 21 Rectifier unit 41 Half-bridge output unit 46 Voltage feedback Unit 52 first filament 61 standard dimmer C2 second capacitor Cc charging capacitor L inductor L2 second inductor Q1, Q2 electronically controlled switch R resistor 9