TWI535332B - Light emitting diode driving system and light emitting diode driving apparatus - Google Patents

Light emitting diode driving system and light emitting diode driving apparatus Download PDF

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TWI535332B
TWI535332B TW103120744A TW103120744A TWI535332B TW I535332 B TWI535332 B TW I535332B TW 103120744 A TW103120744 A TW 103120744A TW 103120744 A TW103120744 A TW 103120744A TW I535332 B TWI535332 B TW I535332B
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voltage
circuit
electrically connected
voltage regulator
synchronization signal
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TW103120744A
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TW201601587A (en
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彭文琦
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矽誠科技股份有限公司
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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
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Description

改良型發光二極體驅動系統及發光二極體驅動裝置 Improved light-emitting diode driving system and light-emitting diode driving device

本發明係有關於一種發光二極體驅動系統及發光二極體驅動裝置,特別是一種改良型發光二極體驅動系統及發光二極體驅動裝置。 The invention relates to a light-emitting diode driving system and a light-emitting diode driving device, in particular to an improved light-emitting diode driving system and a light-emitting diode driving device.

目前發光二極體燈串模組大致上可分為串聯式及並聯式兩種連結方式,而這兩種方式之發光二極體燈串模組也廣被使用者運用在大樓外觀、樹木、招牌及造景物上,以增添該等事物之外觀美。 At present, the LED array of LEDs can be roughly divided into two types: tandem type and parallel type. The two types of LED arrays are also widely used by users in the appearance of buildings and trees. Signs and landscaping to add to the beauty of these things.

而在習知串聯式的發光二極體燈串模組,是將多組的發光二極體燈串模組串聯連接在一起,而且發光二極體燈串模組的串聯數量乃是依據磐繞的物體體積大小而定,且在串聯後由第一個發光二極體燈串模組的控制器對所有的發光二極體燈串模組之發光二極體燈組進行控制。 In the conventional series of LED light string modules, a plurality of sets of light-emitting diode string modules are connected in series, and the number of series of light-emitting diode string modules is based on The volume of the wound object depends on the size of the object, and after the series connection, the controller of the first LED array module controls the LED groups of all the LED strings.

雖然,此種串聯式的連結方式,使發光二極體燈串模組易於串聯使用,但是在使用過程中,只要有一組發光二極體燈串模組故障時,將造成控制訊號無法傳遞,致使該組故障的發光二極體燈串模組之後段的發光二極體燈串模組接收不到任何控制訊號,導致後段的發光二極體燈串模組皆無法被點亮。 Although the series connection method makes the light-emitting diode lamp string module easy to be used in series, in the process of using, if a group of light-emitting diode lamp string modules fails, the control signal cannot be transmitted. The light-emitting diode string module in the subsequent stage of the LED module of the faulty group does not receive any control signal, and the LED module of the rear stage cannot be illuminated.

另外,在並聯式的發光二極體燈串模組是將多組的發光二極體燈串模組與該控制器並聯連結,每一個發光二極體燈串模組就要有一條控制線及定址線來控制。若是並聯10組的發光二極體燈串模組時,該控制器就必須利用10條控制線及10條定址線來控制10組發光二極體燈串模組。 In addition, in the parallel type light-emitting diode lamp string module, a plurality of sets of light-emitting diode lamp string modules are connected in parallel with the controller, and each light-emitting diode lamp string module has a control line. And address lines to control. If 10 groups of LED array modules are connected in parallel, the controller must use 10 control lines and 10 address lines to control 10 groups of LED arrays.

此種並聯式在使用時,有一組發光二極體燈串模組發生故障時,將不會影響到其他發光二極體燈串模組的控制。但是,並聯的發光 二極體燈串模組數量越多時,相對控制線及定址線越多,造成線路的複雜,不易製作,且成本高。 When such a parallel type is used, when a group of light-emitting diode lamp string modules fails, the control of other light-emitting diode string modules will not be affected. However, parallel lighting The more the number of diode lamp string modules, the more control lines and address lines, resulting in complicated lines, difficult to manufacture, and high cost.

然而不論是串聯式或並聯式之連結方式,均需使用多數之電力線或訊號線,來達成使發光二極體燈串模組發光變化的目的。而在現今原物料上漲日益嚴重的情況下,能夠減少傳輸線的使用就能大大地降低成本。 However, whether it is a series or parallel connection method, a majority of power lines or signal lines are required to achieve the purpose of illuminating the LED module. In the current situation of increasing raw materials, the use of transmission lines can be reduced to greatly reduce costs.

為改善上述習知技術之缺點,本發明之目的在於提供一種改良型發光二極體驅動系統。 In order to improve the above disadvantages of the prior art, it is an object of the present invention to provide an improved light emitting diode driving system.

為改善上述習知技術之缺點,本發明之另一目的在於提供一種發光二極體驅動裝置。 In order to improve the above disadvantages of the prior art, another object of the present invention is to provide a light emitting diode driving device.

為達成本發明之上述目的,本發明之改良型發光二極體驅動系統係應用於一交流電源供應裝置、一整流濾波電路及複數之發光二極體,該交流電源供應裝置電性連接至該整流濾波電路,該改良型發光二極體驅動系統電性連接至該整流濾波電路及該些發光二極體,該改良型發光二極體驅動系統包含:複數之發光二極體驅動裝置,該些發光二極體驅動裝置電性連接至該整流濾波電路及該些發光二極體,該些發光二極體驅動裝置彼此串聯;及一傳輸線,該傳輸線電性連接至該整流濾波電路及該些發光二極體驅動裝置。其中該發光二極體驅動裝置包含:一電源正端點,該電源正端點電性連接至該整流濾波電路及該傳輸線;一電壓調整器,該電壓調整器電性連接至該電源正端點;一電源負端點,該電源負端點電性連接至該電壓調整器;一同步信號產生電路,該同步信號產生電路電性連接至該電壓調整器;及一同步控制邏輯電路,該同步控制邏輯電路電性連接至該電壓調整器及該同步信號產生電路。其中該交流電源供應裝置傳送一交流電源至該整流濾波電路;該整流濾波電路對該交流電源整流與濾波以得到一直流電源;該整流濾波電路傳送該直流電源至該電壓調整器;其中該 電壓調整器接收該直流電源之後,該電壓調整器產生一第一電壓;該電壓調整器產生該第一電壓之後,該電壓調整器傳送該直流電源至一下一個發光二極體驅動裝置;該電壓調整器產生該第一電壓之後,該電壓調整器傳送該第一電壓至該同步信號產生電路;其中該同步信號產生電路接收該第一電壓之後,該同步信號產生電路產生一第二電壓;該同步信號產生電路將該第一電壓減去該第二電壓以得到一同步信號;該同步信號產生電路傳送該同步信號至該同步控制邏輯電路;藉由該些同步信號,該些發光二極體驅動裝置同步驅動該些發光二極體。 In order to achieve the above object of the present invention, an improved LED driving system of the present invention is applied to an AC power supply device, a rectifying and filtering circuit, and a plurality of LEDs electrically connected to the AC power supply device. a rectifying and filtering circuit, the improved LED driving system is electrically connected to the rectifying and filtering circuit and the light emitting diodes, and the improved LED driving system comprises: a plurality of LED driving devices, The light emitting diode driving device is electrically connected to the rectifying and filtering circuit and the light emitting diodes, wherein the light emitting diode driving devices are connected in series; and a transmission line electrically connected to the rectifying and filtering circuit and the Some light emitting diode driving devices. The light emitting diode driving device comprises: a power positive terminal, the power positive terminal is electrically connected to the rectifying filter circuit and the transmission line; and a voltage regulator is electrically connected to the power positive end a power supply negative terminal, the power supply negative terminal is electrically connected to the voltage regulator; a synchronization signal generating circuit, the synchronization signal generating circuit is electrically connected to the voltage regulator; and a synchronous control logic circuit, The synchronous control logic circuit is electrically connected to the voltage regulator and the synchronization signal generating circuit. The AC power supply device transmits an AC power supply to the rectification and filtering circuit; the rectification and filtering circuit rectifies and filters the AC power supply to obtain a DC power supply; the rectification and filtering circuit transmits the DC power supply to the voltage regulator; After the voltage regulator receives the DC power, the voltage regulator generates a first voltage; after the voltage regulator generates the first voltage, the voltage regulator transmits the DC power to the next LED driver; the voltage After the regulator generates the first voltage, the voltage regulator transmits the first voltage to the synchronization signal generating circuit; wherein the synchronization signal generating circuit receives the first voltage, the synchronization signal generating circuit generates a second voltage; The synchronization signal generating circuit subtracts the second voltage from the first voltage to obtain a synchronization signal; the synchronization signal generating circuit transmits the synchronization signal to the synchronous control logic circuit; and the plurality of light emitting diodes are obtained by the synchronization signals The driving device synchronously drives the light emitting diodes.

為達成本發明之上述另一目的,本發明之發光二極體驅動裝置係應用於一交流電源供應裝置及一整流濾波電路,該交流電源供應裝置電性連接至該整流濾波電路,該發光二極體驅動裝置電性連接至該整流濾波電路,該發光二極體驅動裝置包含:一電源正端點,該電源正端點電性連接至該整流濾波電路;一電壓調整器,該電壓調整器電性連接至該電源正端點;一電源負端點,該電源負端點電性連接至該電壓調整器;一同步信號產生電路,該同步信號產生電路電性連接至該電壓調整器;一同步控制邏輯電路,該同步控制邏輯電路電性連接至該電壓調整器及該同步信號產生電路;及至少一發光二極體,該發光二極體電性連接至該同步控制邏輯電路。其中複數之發光二極體驅動裝置彼此串聯;該交流電源供應裝置傳送一交流電源至該整流濾波電路;該整流濾波電路對該交流電源整流與濾波以得到一直流電源;該整流濾波電路傳送該直流電源至該電壓調整器。其中該電壓調整器接收該直流電源之後,該電壓調整器產生一第一電壓;該電壓調整器產生該第一電壓之後,該電壓調整器傳送該直流電源至一下一個發光二極體驅動裝置;該電壓調整器產生該第一電壓之後,該電壓調整器傳送該第一電壓至該同步信號產生電路。其中該同步 信號產生電路接收該第一電壓之後,該同步信號產生電路產生一第二電壓;該同步信號產生電路將該第一電壓減去該第二電壓以得到一同步信號;該同步信號產生電路傳送該同步信號至該同步控制邏輯電路;藉由該些同步信號,該些發光二極體驅動裝置同步驅動該些發光二極體。 In order to achieve the above other object of the present invention, the LED driving device of the present invention is applied to an AC power supply device and a rectifying and filtering circuit, and the AC power supply device is electrically connected to the rectifying and filtering circuit. The polar body driving device is electrically connected to the rectifying and filtering circuit, and the LED driving device comprises: a power positive terminal, the power positive terminal is electrically connected to the rectifying and filtering circuit; and a voltage regulator, the voltage adjusting The device is electrically connected to the positive terminal of the power supply; a negative terminal of the power supply, the negative terminal of the power supply is electrically connected to the voltage regulator; a synchronization signal generating circuit, the synchronization signal generating circuit is electrically connected to the voltage regulator a synchronous control logic circuit electrically connected to the voltage regulator and the synchronization signal generating circuit; and at least one light emitting diode electrically connected to the synchronous control logic circuit. The plurality of LED driving devices are connected in series with each other; the AC power supply device transmits an AC power source to the rectifying and filtering circuit; the rectifying and filtering circuit rectifies and filters the AC power source to obtain a DC power source; and the rectifying and filtering circuit transmits the DC power to the voltage regulator. After the voltage regulator receives the DC power, the voltage regulator generates a first voltage; after the voltage regulator generates the first voltage, the voltage regulator transmits the DC power to the next LED driver; After the voltage regulator generates the first voltage, the voltage regulator transmits the first voltage to the synchronization signal generating circuit. Where the synchronization After the signal generating circuit receives the first voltage, the synchronization signal generating circuit generates a second voltage; the synchronization signal generating circuit subtracts the second voltage from the first voltage to obtain a synchronization signal; and the synchronization signal generating circuit transmits the Synchronizing signals to the synchronous control logic circuit; the plurality of light emitting diode driving devices synchronously drive the light emitting diodes by the synchronization signals.

本發明之功效在於減少發光二極體驅動系統的傳輸線以降低發光二極體驅動系統的成本。 The effect of the present invention is to reduce the transmission line of the LED driving system to reduce the cost of the LED driving system.

10‧‧‧改良型發光二極體驅動系統 10‧‧‧Modified LED Driver System

20‧‧‧整流濾波電路 20‧‧‧Rectifier filter circuit

22‧‧‧交流電源 22‧‧‧AC power supply

24‧‧‧直流電源 24‧‧‧DC power supply

30‧‧‧發光二極體 30‧‧‧Lighting diode

40‧‧‧交流電源供應裝置 40‧‧‧AC power supply unit

104‧‧‧發光二極體驅動裝置 104‧‧‧Lighting diode drive

106‧‧‧傳輸線 106‧‧‧ transmission line

10402‧‧‧電源正端點 10402‧‧‧Power positive terminal

10404‧‧‧電壓調整器 10404‧‧‧Voltage regulator

10406‧‧‧電源負端點 10406‧‧‧Power negative endpoint

10408‧‧‧同步信號產生電路 10408‧‧‧Sync signal generation circuit

10410‧‧‧同步控制邏輯電路 10410‧‧‧Synchronous Control Logic Circuit

10412‧‧‧發光變化控制電路 10412‧‧‧Lighting change control circuit

10414‧‧‧振盪器 10414‧‧‧Oscillator

10416‧‧‧驅動電流控制電路 10416‧‧‧Drive current control circuit

10418‧‧‧驅動電流輸出電路 10418‧‧‧Drive current output circuit

10420‧‧‧第一電壓 10420‧‧‧First voltage

10422‧‧‧第二電壓 10422‧‧‧second voltage

10424‧‧‧同步信號 10424‧‧‧Sync signal

10426‧‧‧定電壓產生器 10426‧‧‧ Constant voltage generator

10428‧‧‧電壓減法器 10428‧‧‧Voltage subtractor

10430‧‧‧信號濾波器 10430‧‧‧Signal filter

圖1為本發明之改良型發光二極體驅動系統方塊圖。 1 is a block diagram of an improved light emitting diode driving system of the present invention.

圖2為本發明之同步信號產生電路方塊圖。 2 is a block diagram of a synchronization signal generating circuit of the present invention.

圖3為本發明之一實施例波形圖(若整流濾波電路為全橋架構)。 3 is a waveform diagram of an embodiment of the present invention (if the rectifier filter circuit is a full bridge architecture).

圖4為本發明之另一實施例波形圖(若整流濾波電路為半橋架構)。 4 is a waveform diagram of another embodiment of the present invention (if the rectification filter circuit is a half bridge architecture).

圖5為本發明之發光二極體驅動裝置方塊圖。 Fig. 5 is a block diagram of a light-emitting diode driving device of the present invention.

請參考圖1,其係為本發明之改良型發光二極體驅動系統方塊圖。一改良型發光二極體驅動系統10係應用於一交流電源供應裝置40、一整流濾波電路20及複數之發光二極體30。該交流電源供應裝置40電性連接至該整流濾波電路20;該改良型發光二極體驅動系統10電性連接至該整流濾波電路20及該些發光二極體30。 Please refer to FIG. 1, which is a block diagram of an improved LED driving system of the present invention. An improved light-emitting diode driving system 10 is applied to an AC power supply device 40, a rectifying and filtering circuit 20, and a plurality of LEDs 30. The AC power supply device 40 is electrically connected to the rectifying and filtering circuit 20; the modified LED driving system 10 is electrically connected to the rectifying and filtering circuit 20 and the LEDs 30.

該改良型發光二極體驅動系統10包含複數之發光二極體驅動裝置104及一傳輸線106。該些發光二極體驅動裝置104電性連接至該整流濾波電路20及該些發光二極體30;該些發光二極體驅動裝置104彼此串聯;該傳輸線106電性連接至該整流濾波電路20及該些發光二極體驅動裝置104。 The improved LED driving system 10 includes a plurality of LED driving devices 104 and a transmission line 106. The light emitting diode driving device 104 is electrically connected to the rectifying and filtering circuit 20 and the light emitting diodes 30; the light emitting diode driving devices 104 are connected in series; the transmission line 106 is electrically connected to the rectifying and filtering circuit 20 and the light emitting diode driving devices 104.

該發光二極體驅動裝置104包含一電源正端點10402、一電 壓調整器10404、一電源負端點10406、一同步信號產生電路10408、一同步控制邏輯電路10410、一發光變化控制電路10412、一振盪器10414、一驅動電流控制電路10416及複數之驅動電流輸出電路10418。 The LED driving device 104 includes a power positive terminal 10402, an electric The voltage regulator 10404, a power negative terminal 10406, a synchronization signal generating circuit 10408, a synchronous control logic circuit 10410, an illumination change control circuit 10412, an oscillator 10414, a driving current control circuit 10416, and a plurality of driving current outputs Circuit 10418.

該電源正端點10402電性連接至該整流濾波電路20及該傳輸線106;該電壓調整器10404電性連接至該電源正端點10402;該電源負端點10406電性連接至該電壓調整器10404;該同步信號產生電路10408電性連接至該電壓調整器10404;該同步控制邏輯電路10410電性連接至該電壓調整器10404及該同步信號產生電路10408;該發光變化控制電路10412電性連接至該電壓調整器10404及該同步控制邏輯電路10410。 The power positive terminal 10402 is electrically connected to the rectifying and filtering circuit 20 and the transmission line 106; the voltage regulator 10404 is electrically connected to the power positive terminal 10402; the power negative terminal 10406 is electrically connected to the voltage regulator The synchronization signal generating circuit 10408 is electrically connected to the voltage regulator 10404. The synchronous control logic circuit 10410 is electrically connected to the voltage regulator 10404 and the synchronization signal generating circuit 10408. The illuminating change control circuit 10412 is electrically connected. The voltage regulator 10404 and the synchronous control logic circuit 10410 are provided.

該振盪器10414電性連接至該電壓調整器10404、該同步控制邏輯電路10410及該發光變化控制電路10412;該驅動電流控制電路10416電性連接至該電壓調整器10404及該發光變化控制電路10412;該些驅動電流輸出電路10418電性連接至該驅動電流控制電路10416及該些發光二極體30。 The oscillator 10414 is electrically connected to the voltage regulator 10404, the synchronous control logic circuit 10410, and the illumination change control circuit 10412. The drive current control circuit 10416 is electrically connected to the voltage regulator 10404 and the illumination change control circuit 10412. The driving current output circuit 10418 is electrically connected to the driving current control circuit 10416 and the light emitting diodes 30.

該交流電源供應裝置40傳送一交流電源22至該整流濾波電路20;該整流濾波電路20對該交流電源22整流與濾波以得到一直流電源24;該整流濾波電路20傳送該直流電源24至該電壓調整器10404。 The AC power supply device 40 transmits an AC power source 22 to the rectifier filter circuit 20; the rectifier filter circuit 20 rectifies and filters the AC power source 22 to obtain a DC power source 24; the rectifier filter circuit 20 transmits the DC power source 24 to the Voltage regulator 10404.

該電壓調整器10404接收該直流電源24之後,該電壓調整器10404產生一第一電壓10420;該電壓調整器10404產生該第一電壓10420之後,該電壓調整器10404傳送該直流電源24至一下一個發光二極體驅動裝置104;該電壓調整器10404產生該第一電壓10420之後,該電壓調整器10404傳送該第一電壓10420至該同步信號產生電路10408。 After the voltage regulator 10404 receives the DC power source 24, the voltage regulator 10404 generates a first voltage 10420. After the voltage regulator 10404 generates the first voltage 10420, the voltage regulator 10404 transmits the DC power source 24 to the next one. After the voltage regulator 10404 generates the first voltage 10420, the voltage regulator 10404 transmits the first voltage 10420 to the synchronization signal generating circuit 10408.

該同步信號產生電路10408接收該第一電壓10420之後,該同步信號產生電路10408產生一第二電壓10422;該同步信號產生電路10408將該第一電壓10420減去該第二電壓 10422以得到一同步信號10424;該同步信號產生電路10408傳送該同步信號10424至該同步控制邏輯電路10410;藉由該些同步信號10424,該些發光二極體驅動裝置104同步驅動該些發光二極體30。 After the synchronization signal generating circuit 10408 receives the first voltage 10420, the synchronization signal generating circuit 10408 generates a second voltage 10422; the synchronization signal generating circuit 10408 subtracts the second voltage from the first voltage 10420. 10422 to obtain a synchronization signal 10424; the synchronization signal generating circuit 10408 transmits the synchronization signal 10424 to the synchronization control logic circuit 10410; and the plurality of LED driving devices 104 synchronously drive the two LEDs by the synchronization signals 10424 Polar body 30.

該傳輸線106運送該直流電源24,該電壓調整器10404藉由該直流電源24產生該第一電壓10420,該同步信號產生電路10408藉由該第一電壓10420產生該第二電壓10422,該同步信號產生電路10408藉由該第一電壓10420及該第二電壓10422產生該同步信號10424。 The transmission line 106 carries the DC power source 24, the voltage regulator 10404 generates the first voltage 10420 by the DC power source 24, and the synchronization signal generating circuit 10408 generates the second voltage 10422 by the first voltage 10420, the synchronization signal The generating circuit 10408 generates the synchronization signal 10424 by the first voltage 10420 and the second voltage 10422.

因此,該改良型發光二極體驅動系統10僅使用該傳輸線106以運送該直流電源24並接著產生該同步信號10424,減少了發光二極體驅動系統的傳輸線以降低了發光二極體驅動系統的成本。 Therefore, the improved LED driving system 10 uses only the transmission line 106 to carry the DC power source 24 and then generates the synchronization signal 10424, thereby reducing the transmission line of the LED driving system to reduce the LED driving system. the cost of.

再者,該同步控制邏輯電路10410係用以進行一些電路邏輯上的控制處理並通知該發光變化控制電路10412;該發光變化控制電路10412係用以決定該些發光二極體30的發光變化並通知該驅動電流控制電路10416;每一個該發光二極體驅動裝置104的該驅動電流控制電路10416控制該驅動電流輸出電路10418以同步驅動該些發光二極體30。因此,所有的該些發光二極體30都被同步驅動。 Furthermore, the synchronization control logic circuit 10410 is configured to perform some logic control processing on the circuit and notify the illumination change control circuit 10412. The illumination change control circuit 10412 is configured to determine the illumination changes of the LEDs 30 and The driving current control circuit 10416 is notified; the driving current control circuit 10416 of each of the LED driving devices 104 controls the driving current output circuit 10418 to synchronously drive the LEDs 30. Therefore, all of the light-emitting diodes 30 are driven synchronously.

再者,若該整流濾波電路20係為一半橋架構,則該改良型發光二極體驅動系統10可以節省更多傳輸線(與若該整流濾波電路20係為一全橋架構作比較)。該電壓調整器10404可為例如但不限定為一齊納二極體。該發光二極體30可為一晶片形式並與該發光二極體驅動裝置104共同封裝成單一發光二極體燈。 Moreover, if the rectifying and filtering circuit 20 is a half bridge architecture, the improved LED driving system 10 can save more transmission lines (compared with if the rectifying and filtering circuit 20 is a full bridge architecture). The voltage regulator 10404 can be, for example but not limited to, a Zener diode. The LEDs 30 can be in the form of a wafer and packaged together with the LED driver 104 into a single LED lamp.

請參考圖2,其係為本發明之同步信號產生電路方塊圖。該同步信號產生電路10408包含一定電壓產生器10426、一電壓減法器10428及一信號濾波器10430。該定電壓產生器10426電性連接至該電壓調整器10404;該電壓減法器10428 電性連接至該電壓調整器10404及該定電壓產生器10426;該信號濾波器10430電性連接至該電壓調整器10404、該定電壓產生器10426、該電壓減法器10428及該同步控制邏輯電路10410。 Please refer to FIG. 2, which is a block diagram of a synchronization signal generating circuit of the present invention. The synchronization signal generating circuit 10408 includes a certain voltage generator 10426, a voltage subtractor 10428, and a signal filter 10430. The constant voltage generator 10426 is electrically connected to the voltage regulator 10404; the voltage subtractor 10428 Electrically connected to the voltage regulator 10404 and the constant voltage generator 10426; the signal filter 10430 is electrically connected to the voltage regulator 10404, the constant voltage generator 10426, the voltage subtractor 10428, and the synchronous control logic circuit 10410.

該電壓調整器10404傳送該第一電壓10420至該定電壓產生器10426、該電壓減法器10428及該信號濾波器10430;該定電壓產生器10426接收該第一電壓10420之後,該定電壓產生器10426產生該第二電壓10422;該定電壓產生器10426傳送該第二電壓10422至該電壓減法器10428。 The voltage regulator 10404 transmits the first voltage 10420 to the constant voltage generator 10426, the voltage subtractor 10428, and the signal filter 10430. After the constant voltage generator 10426 receives the first voltage 10420, the constant voltage generator 10426 generates the second voltage 10422; the constant voltage generator 10426 transmits the second voltage 10422 to the voltage subtractor 10428.

該電壓減法器10428接收該第一電壓10420及該第二電壓10422之後,該電壓減法器10428將該第一電壓10420減去該第二電壓10422以得到該同步信號10424;該電壓減法器10428傳送該同步信號10424至該信號濾波器10430;該信號濾波器10430濾除該同步信號10424的雜訊以得到一濾波同步信號;接著,該信號濾波器10430傳送該濾波同步信號至該同步控制邏輯電路10410;藉由該些同步信號10424,該些發光二極體驅動裝置104同步驅動該些發光二極體30。 After the voltage subtractor 10428 receives the first voltage 10420 and the second voltage 10422, the voltage subtractor 10428 subtracts the second voltage 10422 from the first voltage 10420 to obtain the synchronization signal 10424; the voltage subtractor 10428 transmits The synchronization signal 10424 is sent to the signal filter 10430; the signal filter 10430 filters out the noise of the synchronization signal 10424 to obtain a filtered synchronization signal; then, the signal filter 10430 transmits the filtered synchronization signal to the synchronous control logic circuit. The light emitting diode driving device 104 synchronously drives the light emitting diodes 30 by the synchronization signals 10424.

請參考圖3,其係為本發明之一實施例波形圖(若整流濾波電路為全橋架構);請參考圖4,其係為本發明之另一實施例波形圖(若整流濾波電路為半橋架構)。 Please refer to FIG. 3 , which is a waveform diagram of an embodiment of the present invention (if the rectifier filter circuit is a full bridge architecture); please refer to FIG. 4 , which is a waveform diagram of another embodiment of the present invention (if the rectifier filter circuit is Half bridge architecture).

該電壓調整器10404接收該直流電源24之後,該電壓調整器10404產生該第一電壓10420;該定電壓產生器10426接收該第一電壓10420之後,該定電壓產生器10426產生該第二電壓10422;該電壓減法器10428接收該第一電壓10420及該第二電壓10422之後,該電壓減法器10428將該第一電壓10420減去該第二電壓10422以得到該同步信號10424。 After the voltage regulator 10404 receives the DC power source 24, the voltage regulator 10404 generates the first voltage 10420. After the constant voltage generator 10426 receives the first voltage 10420, the constant voltage generator 10426 generates the second voltage 10422. After the voltage subtractor 10428 receives the first voltage 10420 and the second voltage 10422, the voltage subtractor 10428 subtracts the second voltage 10422 from the first voltage 10420 to obtain the synchronization signal 10424.

請參考圖5,其係為本發明之發光二極體驅動裝置方塊圖。圖5所示之元件敘述與圖1~4相似者,為簡潔因素,於此 不再贅述。再者,該發光二極體驅動裝置104更包含至少一發光二極體30;該發光二極體30電性連接至該同步控制邏輯電路10410。 Please refer to FIG. 5 , which is a block diagram of the LED driving device of the present invention. The component description shown in FIG. 5 is similar to that of FIGS. 1 to 4, and is a simple factor. No longer. In addition, the LED driving device 104 further includes at least one LED assembly 30; the LED device 30 is electrically connected to the synchronization control logic circuit 10410.

本發明之優點在於減少發光二極體驅動系統的傳輸線以降低發光二極體驅動系統的成本。 An advantage of the present invention is to reduce the transmission line of the light emitting diode drive system to reduce the cost of the light emitting diode drive system.

然以上所述者,僅為本發明之較佳實施例,當不能限定本發明實施之範圍,即凡依本發明申請專利範圍所作之均等變化與修飾等,皆應仍屬本發明之專利涵蓋範圍意圖保護之範疇。綜上所述,當知本發明已具有產業利用性、新穎性與進步性,又本發明之構造亦未曾見於同類產品及公開使用,完全符合發明專利申請要件,爰依專利法提出申請。 However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the present invention should still be covered by the patent of the present invention. The scope of the scope is intended to protect. In summary, it is known that the present invention has industrial applicability, novelty and advancement, and the structure of the present invention has not been seen in similar products and public use, and fully complies with the requirements of the invention patent application, and is filed according to the patent law.

10‧‧‧改良型發光二極體驅動系統 10‧‧‧Modified LED Driver System

20‧‧‧整流濾波電路 20‧‧‧Rectifier filter circuit

22‧‧‧交流電源 22‧‧‧AC power supply

24‧‧‧直流電源 24‧‧‧DC power supply

30‧‧‧發光二極體 30‧‧‧Lighting diode

40‧‧‧交流電源供應裝置 40‧‧‧AC power supply unit

104‧‧‧發光二極體驅動裝置 104‧‧‧Lighting diode drive

106‧‧‧傳輸線 106‧‧‧ transmission line

10402‧‧‧電源正端點 10402‧‧‧Power positive terminal

10404‧‧‧電壓調整器 10404‧‧‧Voltage regulator

10406‧‧‧電源負端點 10406‧‧‧Power negative endpoint

10408‧‧‧同步信號產生電路 10408‧‧‧Sync signal generation circuit

10410‧‧‧同步控制邏輯電路 10410‧‧‧Synchronous Control Logic Circuit

10412‧‧‧發光變化控制電路 10412‧‧‧Lighting change control circuit

10414‧‧‧振盪器 10414‧‧‧Oscillator

10416‧‧‧驅動電流控制電路 10416‧‧‧Drive current control circuit

10418‧‧‧驅動電流輸出電路 10418‧‧‧Drive current output circuit

10420‧‧‧第一電壓 10420‧‧‧First voltage

10424‧‧‧同步信號 10424‧‧‧Sync signal

Claims (6)

一種改良型發光二極體驅動系統,係應用於一交流電源供應裝置、一整流濾波電路及複數之發光二極體,該交流電源供應裝置電性連接至該整流濾波電路,該改良型發光二極體驅動系統電性連接至該整流濾波電路及該些發光二極體,該改良型發光二極體驅動系統包含:複數之發光二極體驅動裝置,該些發光二極體驅動裝置電性連接至該整流濾波電路及該些發光二極體,該些發光二極體驅動裝置彼此串聯;及一傳輸線,該傳輸線電性連接至該整流濾波電路及該些發光二極體驅動裝置,其中該發光二極體驅動裝置包含:一電源正端點,該電源正端點電性連接至該整流濾波電路及該傳輸線;一電壓調整器,該電壓調整器電性連接至該電源正端點;一電源負端點,該電源負端點電性連接至該電壓調整器;一同步信號產生電路,該同步信號產生電路電性連接至該電壓調整器;及一同步控制邏輯電路,該同步控制邏輯電路電性連接至該電壓調整器及該同步信號產生電路,其中該交流電源供應裝置傳送一交流電源至該整流濾波電路;該整流濾波電路對該交流電源整流與濾波以得到一直流電源;該整流濾波電路傳送該直流電源至該電壓調整器;其中該電壓調整器接收該直流電源之後,該電壓調整器產生一第一電壓;該電壓調整器產生該第一電壓之後,該電壓調整器傳送該直流電源至一下一個發光二極體驅動裝置;該電壓調整器產生該第一電壓之後,該電壓調整器傳送該第一電壓至該同步信號產生電路;其中該同步信號產生電路接收該第一電壓之後,該同步信號產生電路產生一第二電壓;該同步信號產生電路將該第一電壓減去該第二電壓以得到一同步信號;該同步信號產生電路傳送該同步信號至該同步控制邏輯電路;藉由該些同步信號,該些發光二極體驅動裝置同步驅動 該些發光二極體。 An improved light-emitting diode driving system is applied to an AC power supply device, a rectifying and filtering circuit and a plurality of light-emitting diodes, wherein the AC power supply device is electrically connected to the rectifying and filtering circuit, and the improved light-emitting diode The polar body driving system is electrically connected to the rectifying and filtering circuit and the light emitting diodes. The improved light emitting diode driving system comprises: a plurality of light emitting diode driving devices, and the light emitting diode driving devices are electrically Connecting to the rectifying and filtering circuit and the light emitting diodes, the light emitting diode driving devices are connected in series; and a transmission line electrically connected to the rectifying and filtering circuit and the light emitting diode driving devices, wherein The LED driver includes: a power positive terminal, the power positive terminal is electrically connected to the rectifying filter circuit and the transmission line; and a voltage regulator electrically connected to the power positive terminal a negative terminal of the power supply, the negative terminal of the power supply is electrically connected to the voltage regulator; a synchronization signal generating circuit, the synchronization signal generating circuit is electrically connected The voltage regulator; and a synchronous control logic circuit, the synchronous control logic circuit is electrically connected to the voltage regulator and the synchronous signal generating circuit, wherein the alternating current power supply device transmits an alternating current power supply to the rectifying and filtering circuit; The filter circuit rectifies and filters the AC power source to obtain a DC power source; the Rectifier filter circuit transmits the DC power source to the voltage regulator; wherein the voltage regulator receives the DC power source, the voltage regulator generates a first voltage; After the voltage regulator generates the first voltage, the voltage regulator transmits the DC power to the next LED driver; after the voltage regulator generates the first voltage, the voltage regulator transmits the first voltage to a synchronization signal generating circuit; wherein the synchronization signal generating circuit receives the first voltage, the synchronization signal generating circuit generates a second voltage; and the synchronization signal generating circuit subtracts the second voltage from the first voltage to obtain a synchronization a signal; the synchronization signal generating circuit transmits the synchronization signal to the synchronization control Series circuit; by the plurality of synchronization signals, the plurality of light emitting diode drive device driven synchronously The light emitting diodes. 如申請專利範圍第1項所述之改良型發光二極體驅動系統,其中該同步信號產生電路包含:一定電壓產生器,該定電壓產生器電性連接至該電壓調整器;一電壓減法器,該電壓減法器電性連接至該電壓調整器及該定電壓產生器;及一信號濾波器,該信號濾波器電性連接至該電壓調整器、該定電壓產生器、該電壓減法器及該同步控制邏輯電路。 The improved LED driving system of claim 1, wherein the synchronizing signal generating circuit comprises: a certain voltage generator electrically connected to the voltage regulator; a voltage subtractor The voltage subtractor is electrically connected to the voltage regulator and the constant voltage generator; and a signal filter electrically connected to the voltage regulator, the constant voltage generator, the voltage subtractor, and The synchronous control logic circuit. 如申請專利範圍第2項所述之改良型發光二極體驅動系統,其中該發光二極體驅動裝置更包含:一發光變化控制電路,該發光變化控制電路電性連接至該電壓調整器及該同步控制邏輯電路;一振盪器,該振盪器電性連接至該電壓調整器、該同步控制邏輯電路及該發光變化控制電路;一驅動電流控制電路,該驅動電流控制電路電性連接至該電壓調整器及該發光變化控制電路;及複數之驅動電流輸出電路,該些驅動電流輸出電路電性連接至該驅動電流控制電路及該些發光二極體。 The improved LED driving system of claim 2, wherein the LED driving device further comprises: an illumination variation control circuit, wherein the illumination variation control circuit is electrically connected to the voltage regulator and The synchronous control logic circuit; an oscillator electrically connected to the voltage regulator, the synchronous control logic circuit and the illumination change control circuit; a drive current control circuit, the drive current control circuit is electrically connected to the a voltage regulator and the illuminating change control circuit; and a plurality of driving current output circuits, the driving current output circuits are electrically connected to the driving current control circuit and the light emitting diodes. 一種發光二極體驅動裝置,係應用於一交流電源供應裝置及一整流濾波電路,該交流電源供應裝置電性連接至該整流濾波電路,該發光二極體驅動裝置電性連接至該整流濾波電路,該發光二極體驅動裝置包含:一電源正端點,該電源正端點電性連接至該整流濾波電路;一電壓調整器,該電壓調整器電性連接至該電源正端點;一電源負端點,該電源負端點電性連接至該電壓調整器;一同步信號產生電路,該同步信號產生電路電性連接至該電壓調整器;一同步控制邏輯電路,該同步控制邏輯電路電性連接至該電壓調整器及該同步信號產生電路;及至少一發光二極體,該發光二極體電性連接至該同步控制邏輯電路,其中複數之發光二極體驅動裝置彼此串聯;該交流電源供應裝置傳送 一交流電源至該整流濾波電路;該整流濾波電路對該交流電源整流與濾波以得到一直流電源;該整流濾波電路傳送該直流電源至該電壓調整器;其中該電壓調整器接收該直流電源之後,該電壓調整器產生一第一電壓;該電壓調整器產生該第一電壓之後,該電壓調整器傳送該直流電源至一下一個發光二極體驅動裝置;該電壓調整器產生該第一電壓之後,該電壓調整器傳送該第一電壓至該同步信號產生電路;其中該同步信號產生電路接收該第一電壓之後,該同步信號產生電路產生一第二電壓;該同步信號產生電路將該第一電壓減去該第二電壓以得到一同步信號;該同步信號產生電路傳送該同步信號至該同步控制邏輯電路;藉由該些同步信號,該些發光二極體驅動裝置同步驅動該些發光二極體。 An LED driving device is applied to an AC power supply device and a rectifying and filtering circuit. The AC power supply device is electrically connected to the rectifying and filtering circuit, and the LED driving device is electrically connected to the rectifying filter. The circuit, the LED driving device comprises: a power positive terminal, the power positive terminal is electrically connected to the rectifying and filtering circuit; a voltage regulator, the voltage regulator is electrically connected to the power positive terminal; a power supply negative terminal, the power supply negative terminal is electrically connected to the voltage regulator; a synchronization signal generating circuit, the synchronization signal generating circuit is electrically connected to the voltage regulator; a synchronous control logic circuit, the synchronous control logic The circuit is electrically connected to the voltage regulator and the synchronization signal generating circuit; and at least one light emitting diode electrically connected to the synchronous control logic circuit, wherein the plurality of LED driving devices are connected in series The AC power supply device transmits An AC power supply to the rectification and filtering circuit; the rectification and filtering circuit rectifies and filters the AC power supply to obtain a DC power supply; the rectification and filtering circuit transmits the DC power supply to the voltage regulator; wherein the voltage regulator receives the DC power supply The voltage regulator generates a first voltage; after the voltage regulator generates the first voltage, the voltage regulator transmits the DC power source to a next LED driving device; after the voltage regulator generates the first voltage The voltage regulator transmits the first voltage to the synchronization signal generating circuit; wherein the synchronization signal generating circuit receives the first voltage, the synchronization signal generating circuit generates a second voltage; the synchronization signal generating circuit applies the first The voltage is subtracted from the second voltage to obtain a synchronization signal; the synchronization signal generating circuit transmits the synchronization signal to the synchronous control logic circuit; and the plurality of LED driving devices synchronously drive the two LEDs by using the synchronization signals Polar body. 如申請專利範圍第4項所述之發光二極體驅動裝置,其中該同步信號產生電路包含:一定電壓產生器,該定電壓產生器電性連接至該電壓調整器;一電壓減法器,該電壓減法器電性連接至該電壓調整器及該定電壓產生器;及一信號濾波器,該信號濾波器電性連接至該電壓調整器、該定電壓產生器、該電壓減法器及該同步控制邏輯電路。 The illuminating diode driving device of claim 4, wherein the synchronizing signal generating circuit comprises: a certain voltage generator, the constant voltage generator is electrically connected to the voltage regulator; and a voltage subtractor, a voltage subtractor is electrically connected to the voltage regulator and the constant voltage generator; and a signal filter electrically connected to the voltage regulator, the constant voltage generator, the voltage subtractor, and the synchronization Control logic circuit. 如申請專利範圍第5項所述之發光二極體驅動裝置,更包含:一發光變化控制電路,該發光變化控制電路電性連接至該電壓調整器及該同步控制邏輯電路;一振盪器,該振盪器電性連接至該電壓調整器、該同步控制邏輯電路及該發光變化控制電路;一驅動電流控制電路,該驅動電流控制電路電性連接至該電壓調整器及該發光變化控制電路;及複數之驅動電流輸出電路,該些驅動電流輸出電路電性連接至該驅動電流控制電路及該些發光二極體。 The illuminating diode driving device of claim 5, further comprising: an illuminating change control circuit electrically connected to the voltage regulator and the synchronous control logic circuit; an oscillator, The oscillator is electrically connected to the voltage regulator, the synchronous control logic circuit and the illumination change control circuit; a drive current control circuit, the drive current control circuit is electrically connected to the voltage regulator and the illumination change control circuit; And a plurality of driving current output circuits, wherein the driving current output circuits are electrically connected to the driving current control circuit and the light emitting diodes.
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