TW522759B - Flash and brightness control method of LED using positive and negative pulse modulation - Google Patents

Flash and brightness control method of LED using positive and negative pulse modulation Download PDF

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Publication number
TW522759B
TW522759B TW091102322A TW91102322A TW522759B TW 522759 B TW522759 B TW 522759B TW 091102322 A TW091102322 A TW 091102322A TW 91102322 A TW91102322 A TW 91102322A TW 522759 B TW522759 B TW 522759B
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Taiwan
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led
positive
negative
brightness
lighting
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TW091102322A
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Chinese (zh)
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Jung-Chi Liou
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Anpro Tech Internat Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

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Abstract

There is provided a flash and brightness control method of LED using positive and negative pulse modulation, which is applied in the lamplight control of the LED lamp for achieving the purpose of varying lamplight display effect. The method comprises a LED lighting procedure controller in cooperation with at least one set of electronic switches for applying voltage on terminals A and B of the LED lamp series. When A is positive and B is negative (positive cycle), the forward LED (D1) is turned on. When A is negative and B is positive (negative cycle), the backward LED (D2) is turned on. Therefore, by applying voltage varying between positive and negative cycles to the terminals A and B, the two sets of LEDs are turned on, respectively. With the alternation of positive and negative cycles, it is able to achieve the effect of turning on the LEDs and alternately turning the two LEDs for flashing. Furthermore, the present method can be used to control the number of voltage pulse of high-frequency power for changing the effective electric power asserted on the LED, thereby achieving the effect of controlling the LED brightness.

Description

522759522759

經濟部智慧財產局員工消費合作社印製 發明範疇 本發明是關於一種LED正負脈衝調變閃爍與亮度控制 方法,是設計由程序控制器,g己合電子開關,並在燈 串組之電源端,以正半週或負半周電壓以改變led燈交互 點亮與閃爍的效果’另以控制電源高頻的電壓脈波數目, 可改變加在LED上的有效電功率,進而來達到控制LED亮 度的效果」屬於改善燈光顯示,提昇效益,降低線材消耗 之技術範疇。 發明背景 已知傳統的燈光顯示裝置’如聖誕閃燦燈飾,若要達 到多組燈光閃動時’所需要的導線為燈組數+ 1條導線, 亦即’如果是要達到兩組燈光閃爍的效果,就必需要三條 導線’要達到四組燈光閃爍,就要要五條導線才能達成, 其基礎電路係如第一圖所示,故於整體線材原料及製造上 ,較為複雜浪費,最終之包裝體積也較大,而無法有效降 低成本。 另外,傳統燈光顯示裝置在亮度的控制上,受限於傳 統發光元件構造,若欲改變其亮度,必需以控制電壓的方 式來達成,或者是,使用電壓控制元件、或電壓控制電路 方可達成,但此類電路複雜,成本高,且燈串中任一個單 一發光元件故障時,即導致整組燈串不亮。 解決問題之手段 鐾於此一問題仍有待改善,本發明提供了一種效益最 高、成本最低之解決方案,能提供使燈光顯示用燈串組, -2- 本紙張尺度適用中國國家標準(CMS ) A4規格(21〇X 297公釐) I---·---.----Φ------1T------線·---- (請先閱讀背面之注意事項再填寫本頁) 522759 五 、發明説明( A7 B7 特別是LED燈串組,具有多樣燈光變化效果者。 亦即,本發明之主要目的,係提供一種[£1)正負脈衝 調變閃爍與π度控制方法,主要是設計由程序控制器配合 電子開關,並在LED燈串組之電源端,以正半週或負半周 電壓來改變LED燈交互點亮與_的效果,另以控制電源 高頻的電壓脈波數目,可改變加在LED上的有效電功率, 進而控制LED之亮度,達到前述目的。 依據上述’ LED正負脈衝調變閃爍與亮度控制方法, 其中之正負脈衝調變閃爍控制方法,是在LED的兩端A與 B接點上加上電壓,如第二圖所示。當A為正、B為負時 (正半週),順向LED(Dl)點亮;當a為負、B為正時(負半 週),則逆向LED(D2)會點亮。如此在A與β接點上加上正 負變化的電壓,即可分別點亮兩個LED燈組,經由正負週 期的變化,可達到點亮LED、與兩個led燈交互點亮與閃 爍的效果。 若以A為共通線作同步週期控制,則每加一條:線時, 便可增加兩個LED燈組(A-C燈組)。 又依據上述’ LED正負脈衝調變閃爍與亮度控制方法 ,其中之亮度控制方法,係利用電源高頻的電壓脈波數目 ,來改變加在LED上的有效電功率,進而來達到控制led 亮度的效果,如第三圖所示。 當電源高頻脈衝波連續與密集時,有效於LED上的電 功率就越高,於是led亮度則越高,反之脈衝波間斷與稀 疏時,有效於LED上的電功率就低,於是LED的亮度就降 〜3— 本纸張尺度適用中國國家標準(CNS ) A4規格(210X^7^^ (請先閱讀背面之注意事項再填寫本頁) 、-ιτ S. 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 522759 , A 7 * B7 、 五、發明説明() 低,因此可以達到控制led亮度的效果。 如上述,當以八個周期為基礎時,每個脈衝波提供了 12. 5%的能量給LED,連續八個脈衝波,能在LED上展現 出100%的亮度。每減少一個脈衝波,便降低12· 5%的能 量,故在增減脈衝波數後,便能有效改變LED亮度,可由 0〜100%、每段12. 5%的幅度改變。 如第三圖所示,在順向LED上會產出亮度改變的效果 ,有100%、75%、25%之亮度的效果變化,可被輸出的 正脈衝所決定,但在逆向LED上則依然保持了 1〇〇%的亮 度顯示。同理,亦可由負脈衝來改變逆向LED的亮度,故 前述本方法’亦可提供作為LED亮度控制上的應用。 。以下配合圖式,詳細說明本發明之最佳實施例。 圖式簡要說明 第一圖表不傳統的燈光顯示裝置示意圖。 第一圖表示本發明正負脈衝調變閃爍控制方法架構圖。 第三圖表示本發明亮度控制方法示意圖。 第四圖表示本發明系統方塊圖。 第五圖表示本發明之電子開關基礎結構圖。 第六圖表示本發明點亮多組登串之架構示奄圖。 圖號說明 ^ 10程序控制器 20電子開關 30燈串 40擴充燈組 -4- 本紙張尺度適财關家標準(CNS ) Α&格(21〇x1^J7 ---U---Γ----Φ------IT------φ, (請先閲讀背面之注意事項再填寫本頁) 522759 ' Μ __ ___Β7____— \ 五、發明説明() 發明說明 如後附第三圖及第四圖,本發明之LED正負脈衝調變 閃爍與亮度控制方法,係應用於LED燈之燈光控制,以達 成多樣變化之燈光顯示效果。 *----,,---------- f請先閲讀背面之注意事項再填寫本頁) 上述LED正負脈衝調變閃爍與亮度控制方法,主要包 括一 LED點亮程序控制器10,以及,至少一組電子開關 20,用以連接並控制燈串組30、40,所組構而成。 如上所述之本方法,其中,該LED點亮程序控制器1〇 ,係由微處理器、或程序鑼輯閘組成,其基本功能,係在 控制電子開關20的ΟΝ/OFF動作,藉以完成將電源的+/-, 導通於輸出A、B、C等燈串30之各接點上,在LED燈串 30上,由電子開關20的ΟΝ/OFF速度,來完成LED燈串30 ^ 的點亮與LED燈串有效亮度的控制。。 上述電子開關20,其基礎結構係如第五圖所示,主要 功能係可被前述程序控制器10所控制,將電源導通於輸出 端A、B接點上。 以下,再詳細說明本發明之實施例。 一、基本點亮方法 Φ·. 經濟部智慧財產局員工消費合作社印製 如第四圖並配合第五圖所示,當sw-1與sw_4為ON,及 SW-2與SW-3為OFF時,輸出端A為正,輸出端B為負,此 時順向LED燈串點亮。 當sw-2與sw-3為ON,及SW-1與SW-4為OFF時,輸出端 A為負,輸出端B為正,此時逆向LED燈串點亮。 但SW-1與SW-2及SW-3與SW-4不可同時ON,如此會造成 - 5- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 522759 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明() 電源在電子開關上短路。 二、 兩條導線上閃爍點亮兩組led的方法 如第四圖並配合第五圖所示,當led點亮程序控制器10 ’控制電子開關20以+/_與-/+交換輸出時,第四圖中順向 LED燈串與逆向led燈串,便會交互點亮,而達到閃燦點亮 的效果。 三、 兩條電線上同時點亮兩組LED的方法 如第四圖並配合第五圖所示,LED點亮程序控制器10, 以高速度控制電子開關20切換輸出極性時,便會產生一正 負電源脈衝於LED的兩端。若是此交換速度高於1KHZ以上 ’兩個順向與逆向LED便會快速的交換點亮。由於人眼有 視覺暫留的效應,便會認為此兩個順逆LED是同時點亮的 ’便達到了兩條線上同時點亮LED的效果。 四、 多LED燈組點亮方法 每兩個LED燈,需要兩條導線控制,當要擴充時,可將 原來的其中一條線作為主電力線(Master line),故只要 加一條線與主電力線同步控制,便能擴充二個LED燈,並 可據此向下累進。 i、控制亮度的方法 脈衝調變可經由高頻的脈衝電流點亮^]^,達到led亮度 一 6- I 丨·" Φ-----Ί,訂------ (請先閱讀背面之注意事項再填寫本頁) 表…張尺度相中國國家標準(CNS ) A4規格(210x 297公羞) 經濟部智慧財產局員工消費合作社印製 522759 *: A7 ------—--—----—__ B7 、 五、發明説明() ^ -- 的變化。脈衝少則LED亮度低,脈衝多則⑽亮度高,經 由此料用於正負電壓均可,於是便能達到兩組正逆向 燈組的党度控制效果。上述脈衝調變亮度的控制,亦可應 用於其他發光體,譬如手機與PDA的背光顯 如上所述之本發明,具有如下特殊功效性; 1·可大量減少燈組的導線: 傳統所需導線數,為燈組數+ 1條,四組燈要用五條導 線六組燈要用七條導線,如第一圖所示。本方法所需導 線數,為(燈組數/2) + 1條,四組燈只要用三條導線, 六組燈只要用四條導線,如此便可大量省下導線的材料 費用。 2·由電源高頻脈衝的有效寬度波寬,可改變LED的亮度, 脈衝波密集’有效於LED上的電功率就越大,於是led 亮度則越高,反之脈衝波越稀疏,有效於led上的電功 率就越低,於是LED的亮度就越低,故可以達到控制led 亮度的效果。 3·經由上述控制亮度的方法,可控制多個異色LED,達成 多色的發光效果。如紅色與綠色,便可產出紅色、綠色 、澄色、黃色等等效果;如果控制藍色、紅色與綠色, 便可產出全光譜的效果,即紅、澄、黃、綠、藍、靛、 紫色的效果。 4·由電子開關的切換,可設定線上的電壓極性。如果長時 間只輸出正電壓,無負電壓,則只有順向LED會點亮, 一7- 本紙張尺度適用中國國家榡準(CNs ) A4規格(210X 297公釐) I —K f----Φ----^---訂------Ψ. (請先閱讀背面之注意事項再填寫本頁) 522759 ' A7 . ___匕_B7_—〔 五、發明説明() 逆向LED不會點亮。反之,長時間輸出負電壓,無正電 壓,則只有逆向LED會點亮,順向LED不會點亮。如此 便達成了交互點亮的閃動效果。 (請先閱讀背面之注意事項再填寫本頁) 5·具省電效果。由於LED最多只有50%的時間送#電點亮, 故可達到省電1/2以上的效果。 6·低壓安全,無觸電的危險。LED的點亮電壓為低電壓的 正負脈衝直流電,最高+/-12V以内。而傳統的耶誕燈 以110V或220V交流電點亮,有觸電危險。 因此可知,本發明實際上是利用了LED點亮程序控制 器,配合電子開關,在LED燈串的接點上加上不同之正半 週或負半周電壓以改變LED燈交互點亮與閃爍的效果,另 以控制電源高頻的電壓脈波數目,可改變加在LED上的有 效電功率,進而來達到控制LED亮度的效果,能有效提供 多樣化燈光顯示,提昇效益,降低線材消耗,達到前述目 的。 綜上所述,本發明可達到預期之功能及目的,並且, 詳細說明到使習於此藝者得據以實施,然而以上所舉之實 施例僅用以說明,舉凡所有等效結構之改變及不脫本發明 精神之類似修改,均應隸屬本發明之範_。 經濟部智慧財產局員工消費合作社印^ 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐)Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives. The invention relates to a method for modulating LED positive and negative pulses and flicker and brightness control. The invention is designed by a program controller, an electronic switch, and a power supply terminal of a light string group. Use positive half cycle voltage or negative half cycle voltage to change the effect of interactive lighting and flickering of the LED light. In addition, by controlling the number of high-frequency voltage pulses of the power supply, the effective electric power added to the LED can be changed to achieve the effect of controlling the brightness of the LED. "It belongs to the technical field of improving light display, enhancing efficiency and reducing wire consumption. BACKGROUND OF THE INVENTION It is known that a conventional light display device, such as Christmas flashing lights, if multiple groups of lights are to be flashed, requires the number of lights + 1 line, that is, if it is to achieve two sets of lights flashing To achieve the effect, three wires must be used. To achieve four sets of light flashes, five wires are required to achieve this. The basic circuit is shown in the first figure. Therefore, the overall wire materials and manufacturing are more complicated and wasteful. The packaging volume is also large, which cannot effectively reduce costs. In addition, the control of brightness of traditional light display devices is limited by the structure of traditional light-emitting elements. To change its brightness, it must be achieved by controlling the voltage, or it can be achieved by using a voltage control element or a voltage control circuit. However, such circuits are complicated and costly, and when any single light-emitting element in a light string fails, the entire group of light strings is not lit. The means to solve the problem is that this problem still needs to be improved. The present invention provides a solution with the highest efficiency and the lowest cost, which can provide a string set for light display. -2- This paper size is applicable to the Chinese National Standard (CMS) A4 specification (21〇X 297mm) I --- · ---.---- Φ ------ 1T ------ line · ---- (Please read the note on the back first Please fill in this page again for details) 522759 V. Description of the invention (A7 B7, especially the LED light string group, has a variety of light changing effects. That is, the main purpose of the present invention is to provide a [£ 1) positive and negative pulse modulation flicker and The π-degree control method is mainly designed by a program controller and an electronic switch, and at the power end of the LED string group, the positive and negative half-cycle voltage is used to change the effect of the interactive lighting and _ of the LED lamp, and to control the power supply. The number of high-frequency voltage pulses can change the effective electric power applied to the LED, and then control the brightness of the LED to achieve the aforementioned purpose. According to the above 'LED positive and negative pulse modulation flicker and brightness control method, the positive and negative pulse modulation flicker control method is to apply voltage to the A and B contacts of the two ends of the LED, as shown in the second figure. When A is positive and B is negative (positive half cycle), the forward LED (Dl) lights; when a is negative and B is positive (negative half cycle), the reverse LED (D2) is lit. In this way, by applying positive and negative voltage changes to the A and β contacts, the two LED lamp groups can be lit separately. Through the positive and negative cycle changes, the effects of lighting the LED and interacting with the two LED lights can be achieved. . If A is used as the common line for the synchronization cycle control, two LED light groups (A-C light groups) can be added for each additional line. According to the above-mentioned 'LED positive and negative pulse modulation flicker and brightness control method, the brightness control method uses the number of high-frequency voltage pulses of the power supply to change the effective electric power applied to the LED, thereby achieving the effect of controlling the brightness of the LED. , As shown in the third figure. When the high-frequency pulse wave of the power supply is continuous and dense, the electric power effective on the LED is higher, so the brightness of the led is higher. On the contrary, when the pulse wave is intermittent and sparse, the electric power effective on the LED is low, so the brightness of the LED is lower. Drop ~ 3— This paper size applies Chinese National Standard (CNS) A4 specifications (210X ^ 7 ^^ (Please read the precautions on the back before filling out this page), -ιτ S. Printed by the Employees ’Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, 522759, A 7 * B7, V. Description of the invention () is low, so the effect of controlling the brightness of the LED can be achieved. As mentioned above, when based on eight cycles, each pulse The wave provides 12.5% of energy to the LED. Eight consecutive pulse waves can show 100% brightness on the LED. Every time a pulse wave is reduced, the energy is reduced by 12.5%, so the pulse wave is increasing or decreasing. After counting, it can effectively change the brightness of the LED, which can be changed from 0 to 100% in steps of 12.5%. As shown in the third figure, the effect of brightness change on the forward LED will be 100%, 75%, 25% brightness effect change, can be lost It is determined by the positive pulse, but it still maintains 100% brightness display on the reverse LED. Similarly, the brightness of the reverse LED can also be changed by the negative pulse, so the method described above can also be used to control the brightness of the LED. The following is a detailed description of the preferred embodiment of the present invention in conjunction with the drawings. The drawing briefly illustrates the schematic diagram of the non-traditional lighting display device of the first diagram. The first diagram shows the architecture of the positive and negative pulse modulation flicker control method of the present invention. The third figure shows the schematic diagram of the brightness control method of the present invention. The fourth figure shows the block diagram of the system of the present invention. The fifth figure shows the basic structure of the electronic switch of the present invention. The sixth figure shows the architecture of the present invention for lighting multiple groups of strings. Figure. Explanation of drawing number ^ 10 program controller 20 electronic switch 30 light string 40 expansion lamp group -4- paper size standard for financial and family care (CNS) Α & grid (21〇x1 ^ J7 --- U --- Γ ---- Φ ------ IT ------ φ, (Please read the notes on the back before filling in this page) 522759 'Μ __ ___ Β7 ____— \ V. Description of the invention () Attached to the third and fourth figures, the LED of the present invention is The method of pulse modulation flicker and brightness control is applied to the light control of LED lights to achieve various light display effects. * ---- ,, ---------- f Please read the Please fill in this page again.) The above LED positive and negative pulse modulation flicker and brightness control method mainly include an LED lighting program controller 10 and at least one electronic switch 20 for connecting and controlling the light string groups 30 and 40. The method described above, wherein the LED lights up the program controller 10, which is composed of a microprocessor or a program gate, and its basic function is to control the electronic switch 20. ON / OFF action to complete the +/- of the power supply to the contacts of the output string 30 such as A, B, C, etc. On the LED string 30, the ON / OFF speed of the electronic switch 20 Lighting of the LED string 30 ^ and control of the effective brightness of the LED string are completed. . The basic structure of the electronic switch 20 is shown in the fifth figure, and its main function can be controlled by the aforementioned program controller 10, and the power is connected to the output terminals A and B. Hereinafter, embodiments of the present invention will be described in detail. I. Basic lighting method Φ ·. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs as shown in Figure 4 and in conjunction with Figure 5, when sw-1 and sw_4 are ON and SW-2 and SW-3 are OFF When the output terminal A is positive and the output terminal B is negative, the forward LED string lights up. When sw-2 and sw-3 are ON, and SW-1 and SW-4 are OFF, output A is negative and output B is positive. At this time, the reverse LED string lights up. However, SW-1 and SW-2 and SW-3 and SW-4 cannot be turned on at the same time, which will cause-5- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 522759 Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by Consumer Cooperative A7 B7 V. Description of Invention () The power supply is short-circuited on the electronic switch. 2. The method of flashing two sets of LEDs on the two wires is shown in the fourth figure and in conjunction with the fifth figure. When the led lights up the program controller 10 'controls the electronic switch 20 to exchange the output with + / _ and-/ + In the fourth figure, the forward LED light string and the reverse LED light string will light up alternately to achieve the effect of flashing light. 3. The method of lighting two sets of LEDs on two wires at the same time as shown in the fourth figure and the fifth figure, when the LED lights the program controller 10 and controls the electronic switch 20 at high speed to switch the output polarity, a Positive and negative power pulses are applied across the LED. If the exchange speed is higher than 1KHZ or higher, the two forward and reverse LEDs will be quickly exchanged and lighted. Because the human eye has the effect of visual persistence, it will be considered that the two forward and backward LEDs are lit at the same time, and the effect of simultaneously lighting the LEDs on two lines is achieved. Fourth, the multi-LED lamp group lighting method Every two LED lights need two wires to control, when you want to expand, you can use one of the original lines as the master power line (Master line), so just add a line to synchronize with the main power line Control, can expand two LED lights, and can be progressively down accordingly. i. Method of controlling brightness Pulse modulation can be lit by high-frequency pulse current ^] ^, to achieve led brightness of 6-I 丨 · " Φ ----- Ί, order ------ (please Please read the notes on the back before filling in this page) Form ... Zhang Xiaoxiang is related to China National Standard (CNS) A4 specification (210x 297 public shame) Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs 522759 *: A7 ------ ————----—__ B7, V. Description of Invention () ^-Changes. If the pulse is small, the brightness of the LED is low, and if the pulse is large, the brightness is high. Therefore, it can be used for both positive and negative voltages, so the party degree control effect of the two groups of positive and negative lights can be achieved. The above-mentioned pulse-modulated brightness control can also be applied to other luminous bodies, such as the backlight of a mobile phone and a PDA. The present invention has the following special functions: 1. The wires of the lamp group can be reduced significantly: Traditionally required wires The number is the number of lamp groups + 1. Four groups of lights use five wires. Six groups of lights use seven wires, as shown in the first figure. The number of conductors required by this method is (number of lamp groups / 2) + 1. Only four wires are required for four groups of lamps, and only four wires are required for six groups of lamps, which can save a lot of material costs for the wires. 2. The effective width of the high-frequency pulse of the power source can change the brightness of the LED. The pulse wave denseness is effective for the greater the electric power on the LED, so the higher the brightness of the LED, otherwise the sparser the pulse wave is, the more effective it is for the LED. The lower the electric power, the lower the brightness of the LED, so the effect of controlling the brightness of the LED can be achieved. 3. Through the above-mentioned method of controlling brightness, multiple heterochromatic LEDs can be controlled to achieve a multi-color light emitting effect. Such as red and green, you can produce red, green, clear, yellow and other effects; if you control blue, red, and green, you can produce full-spectrum effects, that is, red, clear, yellow, green, blue, Indigo, purple effect. 4. The polarity of the voltage on the line can be set by the electronic switch. If only positive voltage is output for a long time, and no negative voltage is output, only the forward LED will light up. 7- This paper size applies to China National Standards (CNs) A4 specifications (210X 297 mm) I —K f --- -Φ ---- ^ --- Order ------ Ψ. (Please read the precautions on the back before filling out this page) 522759 'A7. ___ D_B7_— [V. Description of the invention () Reverse The LED will not light up. Conversely, if a negative voltage is output for a long time without a positive voltage, only the reverse LED will be on, and the forward LED will not be on. In this way, a flashing effect of interactive lighting is achieved. (Please read the precautions on the back before filling this page) 5. With power saving effect. Since the LED can only be turned on for 50% of the time, it can save more than 1/2 of the power. 6. Low voltage safety, no danger of electric shock. The lighting voltage of the LED is a low-voltage positive and negative pulse DC current, up to +/- 12V. However, the traditional Christmas lights are lit with 110V or 220V AC, and there is a danger of electric shock. Therefore, it can be known that the present invention actually uses a LED lighting program controller and an electronic switch to add different positive half cycle or negative half cycle voltages to the contacts of the LED string to change the interactive lighting and flickering of the LED lamp. Effect, and by controlling the number of high-frequency voltage pulses of the power supply, the effective electric power added to the LED can be changed, thereby achieving the effect of controlling the brightness of the LED, which can effectively provide a variety of light displays, improve efficiency, reduce wire consumption, and achieve the aforementioned purpose. In summary, the present invention can achieve the expected functions and purposes, and it is explained in detail so that those skilled in the art can implement it, but the above-mentioned embodiments are only for illustration, for example, all equivalent structure changes And similar modifications that do not depart from the spirit of the invention should all belong to the scope of the invention. Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ^ This paper size applies to China National Standard (CNS) A4 (210X 297 mm)

Claims (1)

522759 A8 B8 C8 D8 々、申請專利範圍 1· 一種LED正負脈衝調變閃爍與亮度控制方法,係應 用於LED燈之燈光控制,以達成多變化之燈光顯示效果, 包括: (請先閏讀背面之注意事項再填寫本頁) 一 LED點亮程序控制器,係由微處迨器、或程序鑼輯閘 組成,其功能係控制後述電子開關的ΟΝ/OFF動作,藉以完 成將電源的+/-,導通於輸出A、B、C等燈串之各接點上, 在LED燈串上,由電子開關的ΟΝ/OFF速度,來完成LED燈 串的點亮與LED燈串有效亮度的控制; 至少一組電子開關,係可被前述程序控制器所控制,將 電源導通於輸出端A、B接點上;以及, 在LED燈串的兩端A與B點上加上電壓,當a為正、B為 負時(正半週),順向LED(Dl)點亮;當A為負、B為正時 (負半週),則逆向LED(D2)會點亮,如此在a與B點上加 上正負變化的電壓,便會分別點亮兩個LED燈組,經由正 負週期的變化便可達到點亮LED與兩個LED燈交互點亮與 閃爍的效果;控制電源高頻的電壓脈波數目,可改變加在 LED上的有效電功率,進而來達到控制LED亮度的效果。 經濟部智慧財產局員工消費合作社印M L依據申請專利範圍第1項中所述LED正負脈衝調變 閃燦與亮度控制方法,其中包括基本點亮方法,當電子開 關sw-1與sw-4為ON,及SW-2與SW-3為OFF時,輸出端 汗 A為正,輸出端β為負,此時順向LED燈串點亮;當抑一2 與sw-3為ON,及SW-1與Sff-4為OFF時,輸出端編"負, 輸出端B為正,此時逆向LED燈串點亮。 3·依據申請專利範圍第1項中所述LED正負脈衝調變 ~9~ 本纸張尺度適用中國國家榡卒(CNS)⑽秘( 210X 297 公釐) 522759 ABCD 六 申請專利範圍 . ^ L 閃爍與亮度控制方法,其中包括兩條導線上閃燦點亮 LED的方法’當励點亮程序控制器,控制電子開關以+/、、、 與_/+交換輸出時,順向lED燈串與逆向LED燈串,便 互點亮,而達到閃爍點亮的效果。 父 4屬申請專利範圍第1項中所述⑽正負脈衝調變 閃燦與π度控制方法,其中包括兩條導線上同時點 LED的方法’ LED點亮程序控制器以高速度控制電子^關 切換輸出極性時,便會產生一正負電源脈衝於咖的兩端 。若是此交換速度高於1〇2以上,兩個順向與逆向⑽ 便會快速的交換點亮,因視覺暫留的效應,達到 同時點亮LED的效果。 ^ 5·依據中請專利範圍第丄項中所述⑽正負脈衝 閃爍與亮度控制方法,其中包括多LED燈組點亮方法,每 兩個LED燈,需要兩條導線控制,當要擴充時,可將原來 的其中一條線作為主電力線(Master line),只增加一條 線與主電力線同步控制,便能擴充二個LE])燈,並可此、 向下累進。 (_先閲讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消贷合作社印^ 6·依據申請專利範圍第丄項中所述LED正負脈衝調變 閃爍與亮度控制方法,其中包括控制亮度的方法,脈衝調 變可經由高頻的脈衝電流點亮LED,達到LED亮度的變化 ,脈衝少則LED亮度低,脈衝多則LED亮度高,經由此法 可用於正負電壓均可,能達到兩組正逆向LED燈組的亮度 控制效果。 儿又 7.依據申請專利範圍第6項中所述LED正負 一 10 -522759 A8 B8 C8 D8 々 、 Scope of patent application 1 · A method of LED positive and negative pulse modulation flicker and brightness control method is applied to the lighting control of LED lights to achieve multi-variable lighting display effects, including: (Please read the back first Please note this page and fill in this page again) An LED lighting program controller is composed of a micro processor or a program gong. Its function is to control the ON / OFF action of the electronic switch described below, so as to complete the + / -, It is connected to the contacts of the light strings such as A, B, and C. On the LED light strings, the ON / OFF speed of the electronic switch is used to complete the lighting of the LED light strings and the effective brightness control of the LED light strings. ; At least one group of electronic switches, which can be controlled by the aforementioned program controller, to turn on the power to the output terminals A and B; and, apply a voltage to the two ends of the LED string A and B, when a When it is positive and B is negative (positive half cycle), the forward LED (Dl) lights; when A is negative and B is positive (negative half cycle), the reverse LED (D2) will light, so in a Adding a positive and negative voltage change to point B will light up the two LED lamp groups respectively. The change of the period of time can achieve the effect of lighting the LED and two LED lights alternately lighting and flickering; controlling the number of high-frequency voltage pulses of the power supply can change the effective electric power applied to the LED, thereby achieving the effect of controlling the LED brightness . According to the Intellectual Property Bureau of the Ministry of Economic Affairs and the Consumer Cooperatives, the printed ML is based on the LED positive and negative pulse modulation flashes and brightness control methods described in the first patent application scope, including the basic lighting method. When ON, and SW-2 and SW-3 are OFF, the output terminal A is positive, and the output terminal β is negative. At this time, the forward LED light string is lit; when the first two and sw-3 are ON, and SW When -1 and Sff-4 are OFF, the output terminal is negative, and the output terminal B is positive. At this time, the reverse LED string lights up. 3 · According to the LED positive and negative pulse modulation described in item 1 of the scope of patent application ~ 9 ~ This paper size is applicable to the Chinese National Puppet (CNS) secret (210X 297 mm) 522759 ABCD Six patent application scope. ^ L blinking And brightness control methods, including the method of flashing LEDs on two wires, 'When exciting the program controller, controlling the electronic switch to exchange the + / ,,, and _ / + output, forward the LED string and The reverse LED light strings light up each other and achieve the effect of flashing. The method for controlling positive and negative pulse modulation flashing and π degree as described in item 4 of the patent application of the parent 4 includes the method of simultaneously LED on two wires' LED lighting program controller to control the electronic high speed When the output polarity is switched, a positive and negative power pulse is generated at both ends of the coffee. If the exchange speed is higher than 102, the two forward and reverse ⑽ will be quickly exchanged for lighting, due to the effect of visual persistence, the effect of lighting the LED at the same time. ^ 5. According to the method of controlling the positive and negative pulse flicker and brightness control described in item 丄 of the patent scope, including the method of lighting multiple LED lamps, every two LED lamps require two wires to control. When expanding, One of the original lines can be used as the master power line, and only one line can be added to synchronize with the main power line to expand the two LE]) lights, which can be progressively progressed downwards. (_Please read the notes on the back before filling this page) Order the stamp of the staff of the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Loan Cooperative ^ 6 · According to the method described in item 丄 of the scope of patent application, the LED positive and negative pulse modulation flicker and brightness control methods, including The method of controlling brightness. Pulse modulation can illuminate the LED through high-frequency pulse current to achieve the change in LED brightness. If the pulse is small, the LED brightness is low. If the pulse is large, the LED brightness is high. This method can be used for both positive and negative voltages. To achieve the brightness control effect of two groups of forward and reverse LED light groups. 7. According to the positive and negative LEDs described in item 6 of the scope of patent application-10- 線 522759 A8 B8 C8 D8 六、申請專利範圍 脈衝調變閃爍與亮度控制方法,其中,脈衝調變亮度的控 制,可應用於手機與PDA的背光顯示。 (請先閏讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本纸乐尺度適用中國國家標準(CNS ) A4現格(210X297公釐)Line 522759 A8 B8 C8 D8 6. Scope of patent application Pulse modulation flicker and brightness control method. Among them, the pulse modulation brightness control can be applied to the backlight display of mobile phones and PDAs. (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper scale is applicable to the Chinese National Standard (CNS) A4 (210X297 mm)
TW091102322A 2002-02-08 2002-02-08 Flash and brightness control method of LED using positive and negative pulse modulation TW522759B (en)

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