經濟部中央標準局貝工消費合作社印製 A7------ ΒΊ_五、發明説明（I ) 本發明偽有關於一種改變g用換流器之输出電臛的電 路，特別是指一種電路適用於任一反用換流器，其切換晶 體之基極電壓是來自一輸出/回授變壓器的，因此，藉由 改變該輸出/回授變壓器鐵心之磁性恃擻，切換晶體之基 極電壓即受到控制，該反用換流器之輸出電壓因而亦受到 控制。 按，控制一反用換流器之輸出電壓的方法很多，最通 常的是去控制雙極電晶體之基極或場效電晶體之源極，該 雙極電晶體或該場效電晶體在此是作為該反用換流器之切 換元件的，最常使用之方法是去控制該振盪器或反用換流 器之任務周期，藉由控制反用換流器之任務周期，可逹到 控制該反用換流器輸出電壓的功效，惟，這些習用之方法 卻有一些缺失值得改進，如：控制反用換流器任務周期之 線路非常複雜，因而是昂貴的，又，該線路&很難以安裝 調制。 有鑒於斯，本案發明人乃恃憑藉多年的經驗，以及從 事相關行業的心得，加以精心研究設計，經過不斷的改良 後終於研創出本發明。 故，本發明之主要目的乃在提供一種改變反用換流器 之輸出電壓的電路，使控制電路完全獨立於反用換流器之 外，而且，該方法很簡易，該控制電路的價格也低廉，同 時，使甩回授訊號之數目也更有彈性。 依據上述之目的，本發明之主要待擻係有效且直接地 使用一性频亀路以控制被使用在一反用換流器之切換 -----=-----T--C1 裝------訂-----/線， (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 一 4 經濟部中央標準局貝工消費合作社印袋 A7 -........ ............ ..f.......................—一… ...—一… 五、發明説明（) 設置的控制端點，其切換晶體之基極電壓是來自一输岀/ 回授變壓器的，因此，藉由改變該輸出/回授變壓器^心 之磁性特獻，切换設置之控制端點電壓即受到控制，該反 用換流器之輸出電壓因而亦受到調制。 綠是，本發明一種改變反用換流器之輸出電壓的電路 ，其主要傜包括一磁性控制電路，其使用一輸出/回授變 壓器之控制訊號以控制反用換流器之輸出電壓，該輸出/ 回授變壓器包含有一磁性鐵心，一其上流通有輸出電流之 主繞組，以及嬈在同一鐵心上之一組以上之次级嬈組，其 中，該次级嬈組偽由該磁性控制電路所控制，其提供一電 壓給在該反用換流器線路中之電源切換設置之基極或控制 端點，這些次级繞組連接於該電源切換設置，並顒序地將 它們打開，再來藉由改變該輸出/回授變壓器鐵心之磁性 特擻，電源切換設置之基極或控制端點之電壓大小將隨之 改變，該反用換流器之輸出電壓可因而亦受到調制。 有關本發明所採用之技術、手段及其功效，E舉二較 佳實施例並配合圖式詳細說明如后，相倍當可由之得一深 入而具體的瞭解。 首先，請參閲第一圖偽本發明一較佳資施例之電路方 塊圖，圖中所示，本實施例所顯示之一種改變反用換流器 之輸出電壓的電路傜應用於電子安定器之電路中，其主要 係包含有一 110V/ 2 2 0 V, 60 Hz之交流電源10, —輸入濾波 器11, 一交流一直流換流器12, —直流一交流反用換流器 v- ··· «... 13，一輸出/回授變壓器14, 一組燈具15, —控制電路16 本紙張尺度適用中國國家揉準（CNS ) A4規格（210X25*7公釐） 一 ί"一 -----：--1--_广\| 裝------訂-----··.線- (請先閲讀背面之注$項再填寫本頁) 經濟部中央棵準局貝工消費合作社印製 一 …—_A7 . _______________ __________ B7 五、發明説明（3) ，以及一光度感測器17等構件，其蓮作原理如下所述：電 源ίο輸出一交流電源，經過輸入濾波器11，逹至交流一直 流換流器12,輸入濾波器11同時過濾來自輸入側與輸出側 之雜訊，交流-直流換流器12將過濾後之交流電源整流成 直流電源，將其輸至直流一交流反用換流器13,將之切換 成高頻（一般在KHz以上）之交流電源，此交流電源經 過輸出/回授變壓器14之升壓或降壓以得到一適當之交流 電源，作為點亮燈具15之用，而控制電路16從輸出/回授 變壓器14中抓取一些能量，經過整流、切換之後，成為一 適當之控制訊號，並回授至輸出/回授變壓器14,該控制 訊號之大小可以一環境光度戲測器17加以控制，使其能改 變輸出/回授變壓器14中磁性鐵心之磁場強度，此即為一 磁性控制電路，直流一交流反用換流器13中之電源切換設 置之基極或控制端點之電壓大小，受到輸出/回授變壓器 14中磁性鐵心之磁場強度變化之影響，將隨之改變，該反 用換流器13之輸出電壓可因而亦受到變化的控制。 續請參閲第二圖偽本發明一較佳實施例之線路圖，並 請同時配合參閲第一圖，圔中所示，當控制直流一交流反 用換流器13以得到該線路之預期輸出電壓時，最重要的是 能夠控制其中之切換元件Q1與Q 2之基極電壓或基極電流 ，在本實施例中，此基極電壓或基極電流是分別來自輸出 /回授變壓器14中之二繞組W 2與W 3，本發明即是以藉控 制輸出/回授變壓器14之磁性特擻，來控制此基極電壓或 基極電流的，至於欲控制輸出/回授變壓器14之磁性特獻 本紙張尺度適用中國國家標準（CNS ) A4規格（2丨Ο X 297公釐） 一 6一 ---^--^-----_.·,、1 裝------訂-----«*線. (請先閲讀背面之注意事項再填寫本頁). 經濟部中央標準局貝工消费合作社印装 A7 一B7 ―― ................ 五、發明说明（¥) ，可以在主磁場中介入一外加之低頻或直流磁場來逹成， 此一外加之磁場可促使磁性鐵心飽和，以致於減小輸出訊 號之大小，正如第二圖所示，繞組W5從輸出/回授變壓 器14中獲取一些能量，加以整流之後，經過一光電阻器R 之限流，輸出一電流至繞組W 6，因而在主磁場中介入一 外加磁場，光電阻器R之電阻值與環境光度成比例，經由 此光電阻器R訊號之回授，反用換流器13之輸出電壓可以 得到控制與調節，此即為一磁性控制電路，如第三圖所示 傜本發明一較佳實施例之磁性控制電路示意圔，其中，輸 出/回授變壓器14中之繞組Wl、W2、W3、W4、W5與 W 6是鐃在同一個鐵心上而互相感應的，而W 5、W6是磁 性控制電路16的一部分。Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, A7 ------ BΊ_V. Description of the Invention (I) The present invention relates to a circuit for changing the output voltage of a converter for g, especially a circuit The circuit is suitable for any inverter. The base voltage of the switching crystal is from an output / feedback transformer. Therefore, the base of the crystal is switched by changing the magnetic core of the output / feedback transformer core. The voltage is controlled, and the output voltage of the inverter is also controlled. There are many ways to control the output voltage of the inverter using one inverter. The most common is to control the base of the bipolar transistor or the source of the field effect transistor. The bipolar transistor or the field effect transistor is in This is used as the switching element of the inverter. The most commonly used method is to control the task period of the oscillator or inverter. By controlling the task period of the inverter, you can get The efficiency of controlling the output voltage of the inverter, however, there are some shortcomings in these conventional methods that need to be improved. For example, the circuit for controlling the task cycle of the inverter is very complicated, so it is expensive, and the circuit & amp It is difficult to install modulation. In view of this, the inventor of this case, Naaman, based on years of experience and experience in related industries, carefully researched and designed, and finally developed the invention after continuous improvement. Therefore, the main object of the present invention is to provide a circuit for changing the output voltage of the inverter, so that the control circuit is completely independent of the inverter, and the method is simple and the price of the control circuit is also It is cheap and at the same time, it also makes the number of return signals more flexible. According to the above purpose, the main method of the present invention is to effectively and directly use a single frequency circuit to control the switching of an inverter used ----- = ----- T--C1 Install ------ Order ----- / line, (Please read the notes on the back before filling in this page) This paper size applies to China National Standard (CNS) A4 specification (210X297 mm)-4 Ministry of Economic Affairs Central Standards Bureau Shellfish Consumer Cooperative Printing Bag A7 -.................... f ... .......— 一… ...— 一… V. Description of the invention () The control terminal set, the base voltage of the switching crystal is from an input / feedback transformer. Therefore, by By changing the magnetic characteristics of the output / feedback transformer, the control terminal voltage of the switching setting is controlled, and the output voltage of the inverter is also modulated. Green is a circuit for changing the output voltage of the inverter according to the present invention. The circuit mainly includes a magnetic control circuit that uses a control signal of an output / feedback transformer to control the output voltage of the inverter. The output / feedback transformer includes a magnetic core, a main winding having an output current flowing therethrough, and a secondary group consisting of more than one group on the same core, wherein the secondary group is pseudo-controlled by the magnetic control circuit. Controlled, it provides a voltage to the base or control terminal of the power switching setting in the inverter circuit, the secondary windings are connected to the power switching setting, and they are sequentially turned on, and then By changing the magnetic characteristics of the core of the output / feedback transformer, the voltage of the base or control terminal of the power switching setting will change accordingly, and the output voltage of the inverter can also be modulated accordingly. Regarding the technology, means and effects used in the present invention, E will be described in the following two preferred embodiments in conjunction with the drawings in detail, which can be obtained in depth and specific understanding. First, please refer to the first diagram of a circuit block diagram of a preferred embodiment of the present invention. As shown in the figure, a circuit for changing the output voltage of an inverter shown in this embodiment is applied to electronic stabilization. In the circuit of the converter, it mainly includes an AC power supply 10 of 110V / 2 220 V, 60 Hz,-input filter 11, an AC DC converter 12,-DC-AC inverter v- ··· «... 13, an output / feedback transformer 14, a group of lamps 15,-control circuit 16 This paper size is applicable to China National Standard (CNS) A4 (210X25 * 7 mm). ----- ：-1 --_ 广 \ | Install ------ Order ----- ··. Line- (Please read the note on the back before filling this page) Central Ministry of Economy Kezhun Bureau Shellfish Consumer Cooperative Co., Ltd. printed one ... — _A7. _______________ __________ B7 5. Invention Description (3) and a photometric sensor 17 and other components, the principle of its lotus operation is as follows: the power supply ο outputs an AC power supply, Pass the input filter 11 to the AC DC converter 12, the input filter 11 filters the noise from the input side and the output side at the same time, AC- The converter 12 rectifies the filtered AC power into a DC power, and outputs it to a DC-AC inverter converter 13 to switch it to a high-frequency (generally above KHz) AC power. The step-up or step-down of the output / feedback transformer 14 to obtain an appropriate AC power source for lighting the lamp 15, and the control circuit 16 captures some energy from the output / feedback transformer 14, after rectification and switching Becomes an appropriate control signal and is fed back to the output / feedback transformer 14. The size of the control signal can be controlled by an ambient photometer 17 so that it can change the magnetic field of the magnetic core in the output / feedback transformer 14. Intensity, which is a magnetic control circuit. The voltage of the base or control terminal of the power switching setting in the DC-AC inverter 13 is affected by the change in the magnetic field strength of the magnetic core in the output / return transformer 14. The influence will change accordingly, and the output voltage of the inverter 13 can be controlled by the change accordingly. Continued please refer to the second diagram for a circuit diagram of a preferred embodiment of the present invention, and please also refer to the first diagram for cooperation. As shown in the figure, when the DC-AC inverter 13 is controlled to obtain the circuit When the output voltage is expected, the most important thing is to be able to control the base voltage or base current of the switching elements Q1 and Q 2 therein. In this embodiment, the base voltage or base current comes from the output / feedback transformer respectively. Two of the windings W 2 and W 3 of 14 are used to control the base voltage or the base current by controlling the magnetic characteristics of the output / feedback transformer 14. As for controlling the output / feedback transformer 14 The magnetic special paper size of this paper applies the Chinese National Standard (CNS) A4 specification (2 丨 〇 X 297 mm)-6---- ^-^ -----_. ,, 1 pack --- --- Order ----- «* line. (Please read the precautions on the back before filling out this page). The Central Standards Bureau of the Ministry of Economic Affairs prints the A7-B7 ——... ......... 5. Description of the invention (¥), it can be formed by the addition of a low frequency or DC magnetic field in the main magnetic field. This additional magnetic field can promote magnetic iron. Saturation, so as to reduce the size of the output signal, as shown in the second figure, the winding W5 obtains some energy from the output / feedback transformer 14, after rectification, passes the current limit of a photoresistor R, and outputs a current to The winding W 6 therefore involves an external magnetic field in the main magnetic field. The resistance value of the photoresistor R is proportional to the ambient light. Through the feedback of the photoresistor R signal, the output voltage of the inverter 13 can be controlled. This is a magnetic control circuit, as shown in the third figure (a schematic diagram of a magnetic control circuit of a preferred embodiment of the present invention), in which the windings W1, W2, W3, W4 in the output / feedback transformer 14 W5 and W6 are inducted on the same iron core, and W5 and W6 are part of the magnetic control circuit 16.
再請參閲第四圖偽本發明另一較佳實施例之線路圖， 本實施例亦為顯示本發明應用於電子式安定器之電路，惟 第四圖之與第二圖所不同者，在於其以一輸出電感器L2 取代第二圖中之輸出/回授變壓器T3,且以一回授變壓 器T之二繞組T 1A與T 1B來分別驅動切換元件Q Γ與Q 2 ’ 之基極，由第四圔所示可知，繞組W7從輸出電感器L2中 抓取一些能量，經過整流、切換與可變電阻器VR1之限 流，成為一適當之電流，輸送給電威器L3,因而産生一 可控制之磁場，藉以影響回授變壓器T之磁性待激，進而 控制切換元件Q Γ與Q 2 ’之基極驅動，以得到一可控制之 輸出電壓，請參閲第五圖所示傜本發明另一較佳實施例之 磁性控制電路示意圖，其中，對變壓器T而言，電戲器L 本紙張尺度適用中國國家梯準（CMS ) A4規格（210X297公釐） 一 7 — ^-----ΛI裝----^---訂-----»1-線 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局貝工消费合作杜印製 A7 ' _..…—..........—. B7. . 五、發明説明（f) 3是外加的，亦即回授變壓器T與輸出電感器L 3是分離的 ,其間之磁場卻是互相影镳的，此即成為一磁性控制電路 〇 由上述之説明，當可得知本發明誠具有下列所述之優 點及功效： (1) 磁性控制電路是完全獨立於反用換流器之外的， 其優點在於，當此磁性控制電路損壞而不再進行控制時， 反用換流器仍然照常蓮作，如同一未受到控制之電路。 (2) 可以從任一來源獲得磁性控制電路之控制訊號， 一般而言，控制一低頻或直流電源是十分容易的，這使得 該磁性控制電路簡單而不複雜，又，像光度、溫度等烕測 器之回授元件亦可以直接連接於磁性控制電路中。 綜上所述，本發明之一種改變反用換流器之輸出電壓 的電路，確實能有效逹到簡化磁性控制電路，進而容易裝 設調節控制訊號，並能降低成本，是以本發明誠為一進步 之設計，又未見有相同或近似之物品掲露於市，是以符合 發明專利之要件，爰依法提出專利申請。 惟，以上所述者，僅偽本發明之二較佳實施例而已， 故舉a應用本發明説明書及申請專利範圍所為之等效結構 變化，理應包含在本發明之專利範圍内。 圖式之簡單說明： 第一圖所示偽本發明一較佳實施例之電路方塊圖。 第二圖所示傜本發明一較佳實施例之線路圖。 第三圖所示偽本發明一較佳資施例之輸出/回授變壓 本紙張尺度適用中國國家標準（CNS)A4規格（ 210X297公釐） —丨一 ----;--.--裝------訂-----V 線.--- (請先閲讀背面之注意事項再填寫本頁) ’ Έ7 五、發明説明（) 器7Π意圖。 第四圖所示偽本發明另一較佳實施例之線路圖。 第五圖所示係本發明另一較佳實施例之磁性控制電路 不思圖。 圖式中之參照编號： 10 電源 11輸入濾波器 12 交流一直流換流器 13直流-交流反用換流器 14 輸出/回授變壓器 15 燈具 16 磁性控制電路 17 光度感測器 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作杜印策 本紙張尺度適用.中國國家標準（CNS ) A4規格（210X297公釐）Please refer to the fourth figure for a circuit diagram of another preferred embodiment of the present invention. This embodiment also shows the circuit of the present invention applied to an electronic ballast, but the fourth figure is different from the second figure. The reason is that it replaces the output / feedback transformer T3 in the second figure with an output inductor L2 and drives the bases of the switching elements Q Γ and Q 2 'with the two windings T 1A and T 1B of the feedback transformer T, respectively. As can be seen from the fourth figure, the winding W7 captures some energy from the output inductor L2, and after rectification, switching, and current limiting of the variable resistor VR1, it becomes an appropriate current, which is sent to the electric power device L3, thus generating A controllable magnetic field affects the magnetic excitation of the feedback transformer T, and then controls the base driving of the switching elements Q Γ and Q 2 'to obtain a controllable output voltage. Please refer to the fifth figure. A schematic diagram of a magnetic control circuit according to another preferred embodiment of the present invention. For the transformer T, the paper size of the electronic game device L is applicable to the Chinese National Ladder Standard (CMS) A4 specification (210X297 mm). 7 — ^- --- ΛI equipment ---- ^ --- order ----- »1-line (please read first Please fill in this page again)) Printed A7 '_ .. ……… .....—. B7.. V. Description of Invention (f) 3 is external, that is, the feedback transformer T and the output inductor L 3 are separated, but the magnetic fields between them are mutually affected. This becomes a magnetic control circuit. From the above description, when the present invention is known It has the following advantages and effects: (1) The magnetic control circuit is completely independent of the inverter. The advantage is that when this magnetic control circuit is damaged and no longer controlled, the inverter is reversed. The device still works as usual, like the same uncontrolled circuit. (2) The control signal of the magnetic control circuit can be obtained from any source. Generally speaking, it is very easy to control a low frequency or DC power supply, which makes the magnetic control circuit simple and not complicated. The feedback element of the tester can also be directly connected to the magnetic control circuit. To sum up, the circuit for changing the output voltage of the inverter of the present invention can indeed effectively simplify the magnetic control circuit, and then it is easy to install and adjust the control signal, and it can reduce the cost. A progressive design, without the same or similar items being exposed in the market, is based on the requirements of an invention patent, and a patent application is filed in accordance with the law. However, the above are only pseudo-two preferred embodiments of the present invention. Therefore, the application of the equivalent structural changes made in the description of the present invention and the scope of patent application should be included in the patent scope of the present invention. Brief description of the drawings: The first diagram shows a block circuit diagram of a preferred embodiment of the present invention. The second figure shows a circuit diagram of a preferred embodiment of the present invention. As shown in the third figure, the paper size of the output / feedback transformer of a preferred embodiment of the present invention is in accordance with the Chinese National Standard (CNS) A4 specification (210X297 mm)-丨 ----------.- -Install ------ Order ----- V line .--- (Please read the notes on the back before filling this page) 'Έ 7 V. Description of the invention () Device 7Π intention. The fourth diagram shows a circuit diagram of another preferred embodiment of the present invention. The fifth diagram shows a magnetic control circuit according to another preferred embodiment of the present invention. Reference number in the figure: 10 Power supply 11 Input filter 12 AC DC converter 13 DC-AC inverter 14 Output / feedback transformer 15 Lamp 16 Magnetic control circuit 17 Photometric sensor (please first (Please read the notes on the back and fill in this page) Du Yince, the staff of the Central Standards Bureau of the Ministry of Economic Affairs, this paper size is applicable. China National Standard (CNS) A4 specification (210X297 mm)