200849173 九、發明說明： [發明所屬之技術領域】 本發明係關於一種發光二極體（LED)的驅動裝置，特別是 一種二進制回報發光二極體通道狀態的驅動裝置。 【先前技術】 發光二極體（LED)是一種將電能轉換為光能的固體電致發 光器件。近幾年來，發光二極體已經廣泛地應用於螢幕顯示、交 通號誌、家電用品和儀器儀錶等領域，並且隨著半導體發光技術 的快速發展，更是發展出各種高效率、高穩定的發光二極體。 傳統上，發光二極體的驅動裝置通常是做成一個積體電路晶 片，其具有複數個控制輸出接腳，以驅動一發光二極體通道 (channel)上的發光二極體；以及一個錯誤回報接腳，以根據各 個通道的發光二極體之開路/短路錯誤（open/short error)，產生一 連串的錯誤旗標。如此僅能得知是否有通道存在發光二極體之開 路/短路錯誤，並無法得知發生發光二極體之開路/短路錯誤的通道 數重。 因此，參照「第1A圖」，於習知之驅動裝置10上則又設計一 時脈輸出接腳，以相應驅動之通道的數量產生一時脈訊號CLK， 以致使處理器可根據驅動裝置10所輸出之錯誤旗標Flag和時脈訊 號CLK進行判讀，以解讀出發生發光二極體之開路/短路錯誤的通 道數量。參照「第1B圖」，係為習知錯誤回報技術中，8個通道 CH1〜CH8之錯誤旗標和時脈訊號的關係圖；由圖中可解讀出有2 個通道存在有發光二極體之開路/短路錯誤。此判斷方式必須額外 6 200849173 提供一時脈減，以作為參考，___後才_ 誤之通道，判斷上較為困難。 〜件知產生錯 【發明内容】 審於以上的問題二本發明的主要目的在於提供 報發光二極體通道狀態的驅動裝置， 裡一違制回 回報訊號，藉以簡易得知紅發光二 縱η位元的 漏電、溫度過高）之發光二極體通道數。、·θ D、*如.開路/短路、 為達上述目的，本發明所揭露之二_回 狀態的驅動裝置，包括多個通道端點、多 極肢通道 和一訊號轉換器。 工為、多個偵測器 每-通道端點提供-發光二極體 二極體。 、、以5又置至少一個發光 桎：Γ接至通道端點，以控制連接於通道端點上之發光-極肢的運作。於此，可分別對應每 么先- 驅動其上之魏二鋪；抑妓，* =广峰供—控制器，以 g I 由—個控制器控制所有iii首ir山 甜丄之發光二極體的運作（例如：發亮、不發亮、亮度）: 制器可透過控制流經通道端點 〜又/ 空 調控單元峨。 湖巾，蝴11主蝴開關和 連接-通道端點，_測連接之通道端點的 祕r產生制於發光二極體通道的運作狀態之動_虎。 所接=购接收每—侧騎產生之飾臟，並透過渾笞 斤接收職測訊號而產生二進制之n位元的回報訊號。其中= 200849173 為大於】之整數，並且通道端點之數量小於^個 點之數量可為小於2n個且大於等於2„_〗個。 再者，逋這端 、NUm具有第_準位或第二準位，其 、一 連接之發光二極體通道的正常運作狀能，第二準一位代表 光二極體通道的錯誤運作狀態（例如代表連接之發 漏電等狀態）。 皿又义回、開路、短路、 於此，每-偵測器可將所連接之通道端 考相比較因而產生一制訊號。 电u少—參 此參考電射包綱路f顯贿健，且卩 路電屋。其中，當通道端點的電星介於開路電墨盘短:=、於短 時，偵測訊號具有第-準位，以表示發光二極㈣二之間 狀態；反之，制訊號則具有第二準位 2運作 體通道的錯誤運作狀態。 戈表連接之發光二極 在-貫施例中，每—制器包括開路 元和邏輯元件。 、、 、丑路偵測單 。開路侧單元可根據所連接之通道端點㈣壓產生裳一 唬，且此第一訊號相應於通道端點的開路狀態、。 —戒 。紐路偵測單元可根據所連接之通道端點的電壓產 號且此第二訊號相應於通道端點的短路狀態。 其中，開削貞測單元和短路制單元可_比較縣實現， ^係將所連接之通道端點的電壓分顺開路電壓和短 較，以產生第-訊號和第二訊號。 土相比 而邏輯元制以接㈣—訊號和第二簡，並邏輯運算第— 200849173 tfi號和第二錢以產线測訊號。 號轉換為可由_個或多個邏輯元件所組成。在—心 ΐ例Γ號轉換器包括至少—邏輯元件和n個訊號輸出端。i τ 可匕過遨輯加總偵測訊號而產生錯誤回報訊號，且每 號輸^端可輪出-位元之回報訊號。 σ ^壯上所述，根據本發明之二進制回報發光二極體通道狀態的 驅動衣置可彳貞測發光二極體通道上_作絲，並以二進制之η200849173 IX. Description of the Invention: [Technical Field] The present invention relates to a driving device for a light emitting diode (LED), and more particularly to a driving device for binary returning the state of a light emitting diode. [Prior Art] A light emitting diode (LED) is a solid electroluminescent device that converts electrical energy into light energy. In recent years, light-emitting diodes have been widely used in the fields of screen display, traffic signs, home appliances, instrumentation, etc., and with the rapid development of semiconductor light-emitting technology, various high-efficiency, high-stability lights have been developed. Diode. Conventionally, a driving device for a light-emitting diode is usually formed as an integrated circuit chip having a plurality of control output pins for driving a light-emitting diode on a light-emitting diode channel; and an error The pins are reported to generate a series of error flags according to the open/short error of the LEDs of each channel. In this way, it is only known whether there is an open/short error of the light-emitting diode in the channel, and it is impossible to know the number of channels in which the open/short error of the light-emitting diode occurs. Therefore, referring to "FIG. 1A", a clock output pin is designed on the conventional driving device 10, and a clock signal CLK is generated by the number of corresponding driving channels, so that the processor can output according to the driving device 10. The error flag Flag and the clock signal CLK are interpreted to interpret the number of channels in which the open/short error of the light-emitting diode occurs. Refer to "1B", which is the relationship between the error flag and the clock signal of the eight channels CH1 to CH8 in the conventional error reporting technique. It can be interpreted that there are two channels with LEDs. Open circuit / short circuit error. This judgment method must be additional 6 200849173 to provide a clock reduction, as a reference, ___ after _ error channel, it is more difficult to judge. ～ 知 知 产生 发明 发明 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 The number of light-emitting diode channels in which the bit leakage and temperature are too high. The driving device of the second-return state disclosed in the present invention comprises a plurality of channel end points, a multi-pole limb channel and a signal converter. Work, multiple detectors - LED dipoles are provided at each end of the channel. And, at least one illuminating 以 is connected to the end of the channel to control the operation of the illuminating-polar limb connected to the end of the channel. Here, it can correspond to each of the first-driven Wei Erpu; 妓, * = Guangfeng for the controller, with g I by a controller to control all the iii first ir Shan sweet 丄 light dipole The operation of the body (for example: bright, non-bright, brightness): The controller can pass through the end of the channel through the control ~ and / air conditioning control unit 峨. Lake towel, butterfly 11 main switch and connection-channel end point, _ test connection channel end of the secret r generated in the operating state of the light-emitting diode channel _ tiger. The received = purchase receives the trimming generated by each side ride, and receives the job test signal through the jack to generate a binary n-bit return signal. Where = 200849173 is an integer greater than 】, and the number of channel endpoints is less than 2n and can be less than 2n and greater than or equal to 2 „ 〗 〖. Furthermore, 逋 this end, NUm has the _th level or the first The second level, the normal operation state of the connected light-emitting diode channel, and the second quasi-position represents the erroneous operation state of the photodiode channel (for example, representing the state of leakage of the connection). Open circuit, short circuit, where each detector can compare the connected channel end to produce a signal. The electric u is less - refer to the electric radiation package road to show the bribe, and the road electric house Wherein, when the electric star at the end of the channel is short between the open ink trays: =, in a short time, the detection signal has a first-level position to indicate the state between the two-pole (four) two; otherwise, the signal has The second level 2 operates the wrong operation state of the body channel. The light-emitting diode of the Ge-table connection is in the embodiment, each of the controllers includes an open circuit element and a logic element. , , , and an ugly road detection unit. It can be generated according to the end point (4) of the connected channel, and The first signal corresponds to the open state of the end of the channel, and the ring detection unit can according to the voltage production number of the connected channel end point and the second signal corresponds to the short circuit state of the channel end point. The detection unit and the short-circuit unit can be compared with the county, and the voltage of the connected channel end points is divided into the open circuit voltage and the short comparison to generate the first signal and the second signal. Connect (4) - signal and second simple, and logical operation - 200849173 tfi number and second money to the production line test signal. The number is converted to be composed of _ or more logic components. Including at least - logic elements and n signal outputs. i τ can generate false return signals by summing up the total detection signals, and each line can turn out the - bit return signals. According to the present invention, the driving device of the binary return light-emitting diode channel state can be measured on the light-emitting diode channel, and the binary light is
位=购訊號回報，因此處理器透過抓取回報訊號以進行代表 =我解’、’即可輕祕知整㈣統上產生錯誤之發光二極體通道 數。 明女#4务月的付心與貫作，茲配合圖示作最佳實施例詳細說 【實施方式】Bit = purchase signal return, so the processor captures the reward signal to perform the representative = my solution ', ' can be lightly known (4) to generate the wrong number of LED channels. Ming Women #4月月的心心和作作, with the diagram as a best example to explain in detail [Embodiment]
I 參照「裳〇 区1 〆、 、、 圖」，係為根據本發明之二進制回報發光二極體 (LED)通道狀態的购裝置1⑻，包括有驅動電路11G和訊號轉 換器130。 j區動包路110可提供複數個發光二極體通道CH1〜CH8，以設 ^光極。為方便說明，於「第2圖」中顯示驅動電路110 係提2 8個發光二極體通道CH1〜CH8，但本案並不以此為限，可 配合貫際需求提供2個以上之發光二極體通道。其中，每個發光 —極版通逼 CHI/CH2/CH3/CH4/CH5/CH6/CH7/CH8 上可設置至少 们毛光—極體。驅動電路11()可控制發光二極體通道cH1〜CH8 的運作（即，控制設置於發光二極體通道CH1〜CH8上之發光二極 9 200849173 體的運作（例如：發亮、不發亮、發出的亮度）），並偵測發夹二 極體通道CH1〜CH8的運作狀態（即，偵測設置於發光二極體通道 CH1〜CH8上之發光二極體的運作狀態），據以產生偵蜊訊號 S1〜S8。訊號轉換器130接收到偵測訊號$1〜別，並透過運算侦、、則 訊號S1〜S8而產生二進制之^位元的回報訊號Bit〇〜Bit3，進而可 直接由回報訊號得知產生發光二極體錯誤（例如：開路/短路、漏 電、溫度過高）之發光二極體通道數。其中，n係為大於丨之整數， 並且發光二極體通道之數量小於2n個，即通道端點之數量小於 们此外’每光一極體通道之數量可小於2n個且大於等於2^]個 即通這端點之數量可小於2n個且大於等於個。 以8個通道為例，訊號轉換器130可產生如「第3圖」所示 之4位元的回報訊號_〜廳，來表示發生發光二極體錯誤的通 道數量；舉例來說’當訊號轉換器130產生“GGG1”之回報訊號 時’即表示有丨個發光二極體通道發生錯誤。同理，當7個通道 時則可利用3位元的回報訊號來表示。 再參照「第4圖」，驅動電路11〇具有相應於發光二極體通道 如之多個通道端，點NCHm (m係為大於i之整數） ::制㈣及多個娜114,來說爾^ 因:_於發光二極體通道，驅動電路則具有 =即侧韻)。以第一發光二極體通娜 哭1=電路110具有第一通道端點咖 二^ 14 ;控制器112控制第—發光二極體通道側 細器114偵測第—發光二極體通道⑽的運作狀態 10 200849173 據以產生偵測訊號S1。 每逋逼端點NCHm可連接一個或多個發光二極體Dm。 ^ “連接至通道端點NCHm，用以控制連接於通道端 ”、、占NCHm上之發光二極體Dm的運作。於此，可分別對應每一通 J NCHm提供一控制器112，以驅動其上之發光二極體Dm。 抑或疋，由一個控制器U2控制所有通道端點NCHm上之發光二 極版Dm的運作。在此，控制器m可透過控制流經連接之通道 ； 祕NCHm的電流或連接之通道端點NCHm的電壓，來達成驅動 發光二極體通道上之發光二極體Dm。 以電流控制為例，參照「第5圖」，在-實施例中，控制器112 主要係由開關SW1、SW2和調控單元i 13戶斤構成，開關撕、咖 連接於通道端點NCHm與接地咖之間，調控單元出的輸出 連接於開關swi的控制端，而調控單元113的輸入分別連接開關 SW1、SW2的接點和參考訊號Vref，以控制開關SW1的導通。於 此雖然仙主要係㈣關和調控單元所構成之控彻 但本發明並不以此為限。 月， 再茶照「第4圖」，每個侧器114對應於—發光二極體 • 咖，分猶接輯之见伽，峰骑應^I refer to "Sports area 1 〆, 、, 图 图" as a binary return light emitting diode (LED) channel state purchasing device 1 (8) according to the present invention, including a driving circuit 11G and a signal converter 130. The j-zone dynamic packet 110 can provide a plurality of light-emitting diode channels CH1 to CH8 to set the photopole. For convenience of explanation, in the "Fig. 2", the driving circuit 110 is provided with 28 LED channels CH1 to CH8, but this case is not limited thereto, and more than two illuminations can be provided in accordance with the requirements. Polar body channel. Among them, each of the illuminating-polar version can be set to at least CHI-CH2/CH3/CH4/CH5/CH6/CH7/CH8. The driving circuit 11() can control the operation of the LED channels cH1 to CH8 (that is, control the operation of the LEDs 9200849173 disposed on the LED channels CH1 to CH8 (eg, bright, not bright) And the brightness emitted)), and detecting the operation state of the hairpin diode channels CH1 to CH8 (ie, detecting the operating state of the light-emitting diodes disposed on the LED channels CH1 to CH8), Detective signals S1 to S8 are generated. The signal converter 130 receives the detection signal $1~, and generates a binary signal return signal Bit〇~Bit3 through the operation detection, and the signal S1~S8, and the light signal can be directly generated by the return signal. The number of light-emitting diode channels for polar errors (eg open/short, leakage, over temperature). Wherein, n is an integer greater than 丨, and the number of light-emitting diode channels is less than 2n, that is, the number of end points of the channel is smaller than the number of channels of each light-polar body can be less than 2n and greater than or equal to 2^. That is, the number of the endpoints can be less than 2n and greater than or equal to one. Taking 8 channels as an example, the signal converter 130 can generate a 4-bit return signal _~ hall as shown in "Fig. 3" to indicate the number of channels in which a light-emitting diode error occurs; for example, 'when the signal When the converter 130 generates a "GGG1" return signal, it indicates that there is an error in one of the LED channels. Similarly, when 7 channels are used, they can be represented by a 3-bit return signal. Referring again to "Fig. 4", the driving circuit 11A has a plurality of channel ends corresponding to the light-emitting diode channels, and the point NCHm (m is an integer greater than i): (4) and a plurality of N, 114 Er ^ Because: _ in the light-emitting diode channel, the drive circuit has = side rhyme). The first light-emitting diode passes through the cry 1 = the circuit 110 has a first channel end point 255; the controller 112 controls the first-light-emitting diode channel side-slitter 114 to detect the first-light-emitting diode channel (10) The operating state 10 200849173 is based on the detection signal S1. One or more light-emitting diodes Dm may be connected to each of the forced terminals NCHm. ^ "Connect to the channel endpoint NCHm to control the connection to the channel end", the operation of the LED Dm on the NCHm. Here, a controller 112 may be provided corresponding to each of the J NCHm to drive the LEDs Dm thereon. Alternatively, a controller U2 controls the operation of the LED version Dm on all channel terminals NCHm. Here, the controller m can control the light-emitting diode Dm on the light-emitting diode channel by controlling the current flowing through the connected channel, the current of the NCHm or the voltage of the connected channel terminal NCHm. Taking the current control as an example, referring to "figure 5", in the embodiment, the controller 112 is mainly composed of the switches SW1, SW2 and the regulating unit i 13 jin, the switch tearing, the coffee connection to the channel end point NCHm and the grounding Between the coffee makers, the output of the control unit is connected to the control terminal of the switch swi, and the input of the control unit 113 is connected to the contacts of the switches SW1 and SW2 and the reference signal Vref, respectively, to control the conduction of the switch SW1. Although this is mainly the control of the (4) customs and control units, the invention is not limited thereto. Month, then tea photo "4th picture", each side device 114 corresponds to - light-emitting diodes • coffee, divided into the collection of the seeing gamma, peak riding should ^
‘二鋪通道CHm的運作狀態，即設置於發光二極體触⑶X f光二極體如的運作狀態（例如··正常、漏電路、= 或溫度過南等）。於此，偵、測器114可偵測對應之發光二極 =的運帽、賴爾狀態，她蝴應於^： 的偵測《Sm。舉例來說，偵、測器114可侧對應 光二極 31 200849173 體通道cHm的溫度，以產生對應於溫度過高 的溫度高於正常值，即錯誤）或正常（即表示^不發光二極體 於正常值，即正常）的_訊號Sm。 -極體的溫度 以偵測電屡為例，參照「第5圖」‘The operating state of the two-channel CHm, that is, the operating state of the LED (3) X f photodiode (such as normal, leaky circuit, = or temperature over-the-counter). Here, the detector 114 can detect the corresponding illuminating dipole = the cap and the lyon state, and her butterfly should detect the "Sm" of ^:. For example, the detector 114 can side correspond to the temperature of the photodiode 31 200849173 body channel cHm to generate a temperature corresponding to an excessive temperature higher than a normal value, that is, an error) or normal (ie, a non-light emitting diode) _ signal Sm at normal value, ie normal. - The temperature of the polar body is taken as an example of detecting electricity. Refer to "Figure 5".
Dm可設置於發光-朽w s、，ρ 固或夕個發光二極體 毛光—極體通迢CHm上，即連接於 與電壓源VDD之間。當發光二極體施為正常運=而點NCHm 端點NCHm的電壓相當於穿過發光二極體如的^=時，通道 即位於〇伏特和發光二極體Dm的電壓之間 ^牛的大小’ 為短路運作妝能r^ f 田努光二極體Dm 的電壓相-於二喊:體Dm錯誤）時，通道端‘點NCHm 电土相田於牙過發光二極體Dm的電麵的* , 二極體Dm的電屙· . 小，即接近發光 光二極體a光二極體Dm為開路運作狀態（即發 m錯秩）％，通道端點见_的電壓相去 一極體Dm的電壓_ ^ 1先 出發光二_ Dm的門_1 a 此即可據以偵測 態。toDm的開路/紐路的錯誤運作狀態或是為正常運作狀 路偵t實晴，每—_ 1M可_路_單元心短 路偵劂早兀116及邏輯元件117。 開路偵測單元115的輸入和短路偵測單元ιΐ6的輸 相應之通道端點NCHm，且 單元邮的輸峨_輯元f _和短路偵測 r隹於^路侦測單元115根據連接之通道端點Nc版的麵產生相 ==端點NCHm的騎狀g (即連接於其上之發光二極體 ⑽她運作狀態）第-訊號CS1，以及短路偵測單元116貝= 12 200849173 f連狀通道端賴CH_電壓產生相應於通道端點腦㈣短 吩狀l (即知於其上之發光二極體Dm的短路運作狀態）第二 fl说CS_这輯元件117接收第一訊號CS1矛口第二訊號⑶，並 進行遴輯運算以產生偵測訊號Sm。 在戶'%例中，㈤路偵測單元115和短路偵測單元⑽可利 :狀較时實現。其n比較器（即断細潭元115)偵測 連接之通魏f纟NCHm的魏，並親道魅NCHm的電壓盘開 r路輕偏〇相比較以產生第一訊號⑶；而第二比較器（即短路 偵測早兀116)侧連接之通道端點NCHm的電壓，並將通道端 點NCHm的電產與短路電壓Vrefs相比較以產生第二訊號⑶。 然^，邏輯元件1Π再將第—訊號CS1和第二訊號CS2進行邏輯 運算以產生偵測訊號Sm。換言之，錯誤债測器114可將連接之通 道端點NCHm的電壓與至少一參考電壓（如開路電壓v喻/短= 電壓Vrefs )相比較而產生偵測訊號Sm。 於此，偵測訊號具有第一準位或第二準位，即以第一準位和 第二準位來分別表科光二極_正_作狀態和騎亦或翅路 的運作狀態。舉例來說’假設利用反及間來實現邏輯元件m且 ，路電壓Vrefo小於短路電壓Vrefs。當發光二極體為開路運作狀 態時，通道端點NCHm的電壓相當於〇伏特，其會小於開路電厭 Vrefo，且短路糕Vrefs會大於通道端點NCHm的電壓，因 -比較器產生邏輯G的第-訊號CS1，且第二比較器產生邏輯^ 的第二訊號CS2，此時反及間（即邏輯元件m)輸出邏輯^ (印 第二準位）之偵測訊號Sm ;當發光二極體為短路運作狀熊护，， 13 200849173 道端點NCHm的電壓接近發光二極體Dm的電壓，其會大於開路 電壓Vrefo，且短路電壓Vrefs會小於通道端點NCHm的電壓，因 此第-比較H產生邏輯丨的第—訊號CS1，且第二比較器產生邏 • 輯0的第二訊號CS2，此時反及閘（即邏輯元件117)輸出邏輯工 (即第一準位）之彳貞測訊號§m ;而當發光二極體為正常運作狀熊 時，通運端點NCHm的電壓會介於開路電壓Vref〇和短路電壓 Vrefs之間，因此第一比較器產生邏輯丨的第一訊號CS1，且第二 ， 比較器產生邏輯1的第二訊號CS2,此時反及閘（即邏輯元件117) 輸出邏輯0 (即第一準位）之偵測訊號Sm。 在貝施例中，§Tl號轉換器130可由一'個或多個邏輯元件所 組成。芩照「第6圖」，以8個發光二極體通道為例，驅動電路中 具有8個偵測器以產生8個偵測訊號S1〜S8。每一個第一邏輯元 件132接收二偵測訊號§卜S2/S3、S4/S5、S6/S7、S8，並進行加 總以產生第一加總訊號 RES31、RES30/RES21、RES20/RES11、 RES10/RES(U、RES00。每一個第二邏輯元件134接收四個第一加 總訊號 RES3卜 RES30、RES21、RES20/RESH、RES10、RES(U、 RES00，並進行加總以產生第二加總訊號remu、、 RES210/RES202、RES201、RES2⑻。第三邏輯元件136接收第二 _ 加總訊號 RES212、RES211、RES210、RES202、RES2(H、RES200， 並進行加總而產生4位元的回報訊號BitO〜Bit3，並分別由4個訊 號輸出端N1/N2/N3/N4分別輸出1位元的回報訊號Bit0/Bitl/Bit2/ Bit3。同理，當僅4個發光二極體通道時，即只需透過第一和第二 邏輯元件的加總即可產生3位元的回報訊號。 14 200849173 於應用上’雜「第7圖」，會·多個驅動裝置綱來控制 面狀排列的發光二極體的運作，以顯示圖像。處理器cpu依序對 每個驅動裝置1GG送出狀態判斷訊號E咖Q，觸所有驅動裝置 湖依序抓取回報訊號Blt0〜Blt3，透過回報訊號刪〜脳即可得 知整個系統發生發光二極體錯誤（即開路/短路、漏電、溫度過高） 的通道數量。其中，於處理器cpu中預先設定如「第3圖」所示 ，回報訊號與其涵義之賴表，因此於抓取顺報訊號時，由對 照表就可直接得知回報訊號所代表的意思。 雖然本發明以前述之較佳實施例揭露如上1其並非用以限 定本f，任何熟f相像技藝者，在不脫離本發明之精神和範圍 作些許之更動與潤飾，因此本發明之專利保護範圍須相 本况明書_之巾請專利範圍所界定者為準。 。 【圖式簡單說明】 圖,1A圖係為習知之8個發光二極體通道的驅動裝置的示意 、s、、广:间係為於「第1A圖」之驅動裝置中，8個發光二極體 1逼之錯t轉標和時脈織的_目； -也 第2圖係為根據本發明一實施例 這狀態的驅動裝置的示意圖； 制口概先-極體通 個發光二極體通道為例，喃赠與其涵義之對 驅動=，圖據本發明之二進制回報發光二極體通道狀態的 照表； 體通道狀態的 第4圖_根據本發明之二進制回報發光二極 200849173 驅動裝置，一實施例之驅動電路的示意圖； 第5圖係為根據本發明之二進制回報發光二極體通道狀態的 驅動裝置，另一實施例之驅動電路的示意圖； 第6圖係為根據本發明之二進制回報發光二極體通道狀態的 驅動裝置，一實施例之訊號轉換器的示意圖；以及 第7圖係為根據本發明之二進制回報發光二極體通道狀態的 驅動裝置的一實施例之應用糸統的示意圖。 【主要元件符號說明】 10 驅動裝置 100 驅動裝置 110 驅動電路 112 控制器 113 調控單元 114 偵測器 115 開路偵測單元 116 短路偵測單元 117 邏輯元件 130 訊號轉換器 132 第一邏輯元件 134 第二邏輯元件 136 第三邏輯元件 CLK 時脈訊號 Flag 錯誤旗標 16 200849173Dm can be set on the illuminating-destructive s, ρ solid or illuminating diode illuminating body - the body is connected to the voltage source VDD. When the light-emitting diode is applied as normal operation and the voltage at the end point NCHm of the NCHm is equivalent to ^= passing through the light-emitting diode, the channel is located between the voltage of the x-volt and the light-emitting diode Dm. The size 'for the short-circuit operation makeup r ^ f Tian Nuguang diode Dm voltage phase - in the second shout: body Dm error), the channel end 'point NCHm electric soil phase field in the teeth over the LED Dm electric surface * , Dielectric Dm electric 屙 · . Small, that is, close to the illuminating light diode a photodiode Dm is open circuit operation state (ie, send m wrong rank)%, the end of the channel see _ voltage phase goes to the polar body Dm Voltage _ ^ 1 first out of the light _ Dm door_1 a This can be detected according to the state. The wrong operation state of toDm's open/newway is either a normal operation, and every _1M can be _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The input of the open-circuit detecting unit 115 and the short-circuit detecting unit ιΐ6 are input to the corresponding channel end point NCHm, and the unit mailing unit _ _ element f _ and the short-circuit detecting unit 隹 are connected to the channel detecting unit 115 according to the connecting channel The face of the end point Nc version produces a phase==end NCHm rider g (ie, the light-emitting diode (10) connected thereto is in the operating state) - the signal CS1, and the short-circuit detection unit 116B = 12 200849173 f The CH_ voltage is generated corresponding to the end point of the channel (4) short horn 1 (ie, the short-circuit operation state of the light-emitting diode Dm known thereon). The second fl says CS_This component 117 receives the first signal The CS1 spears the second signal (3) and performs a series operation to generate the detection signal Sm. In the household '% example, the (5) way detecting unit 115 and the short circuit detecting unit (10) can be realized in a timely manner. The n comparator (ie, the broken pool element 115) detects the Wei of the connected Wei f纟NCHm, and compares the voltage of the NCHm with the light path of the RCH to generate the first signal (3); and the second comparison The voltage of the channel terminal NCHm connected to the side of the device (ie short circuit detection early 116) is compared with the short circuit voltage Vrefs to generate a second signal (3). Then, the logic component 1 logically operates the first signal CS1 and the second signal CS2 to generate the detection signal Sm. In other words, the error detector 114 can compare the voltage of the connected channel terminal NCHm with at least one reference voltage (e.g., open circuit voltage v/short = voltage Vrefs) to generate the detection signal Sm. In this case, the detection signal has a first level or a second level, that is, the first level and the second level are respectively used to record the state of the light pole and the state of the ride or the wing. For example, it is assumed that the logic element m is implemented by the inverse and the path voltage Vrefo is smaller than the short-circuit voltage Vrefs. When the light-emitting diode is in an open circuit state, the voltage at the end point of the channel NCHm is equivalent to 〇V, which is smaller than the open circuit Vrefo, and the short-circuit cake Vrefs is greater than the voltage at the end point NCHm of the channel, and the comparator generates a logic G The first signal CS1, and the second comparator generates the second signal CS2 of the logic ^, and the reverse (ie, the logic element m) outputs the detection signal Sm of the logic ^ (printed second level); The pole body is a short-circuit operation bear protection, 13 200849173 The voltage of the terminal NCHm is close to the voltage of the light-emitting diode Dm, which is greater than the open circuit voltage Vrefo, and the short-circuit voltage Vrefs is smaller than the voltage of the channel end point NCHm, so the first comparison H generates a first signal CS1 of the logical volume, and the second comparator generates a second signal CS2 of the logic 0, at which time the inverse gate (ie, the logic element 117) outputs the logic (ie, the first level). The test signal §m; and when the light-emitting diode is a normally operating bear, the voltage of the pass terminal NCHm is between the open circuit voltage Vref〇 and the short-circuit voltage Vrefs, so the first comparator generates the first signal of the logical chirp CS1, and second, the comparator produces The second signal series 1 CS2, the NAND case (i.e. logic element 117) outputs a logical 0 (i.e., the first level) of the detection signal Sm. In the example of the embodiment, the §T1 converter 130 may be composed of one or more logic elements. Taking "Figure 6" as an example, eight LED channels are used as examples. The driver circuit has eight detectors to generate eight detection signals S1 to S8. Each of the first logic elements 132 receives two detection signals § S2 / S3, S4 / S5, S6 / S7, S8, and sums to generate first summed signals RES31, RES30 / RES21, RES20 / RES11, RES10 /RES (U, RES00. Each second logic element 134 receives four first summed signals RES3 RES30, RES21, RES20/RESH, RES10, RES (U, RES00, and sums to generate a second sum total Signal remu, RES210/RES202, RES201, RES2 (8). The third logic component 136 receives the second _ total signals RES212, RES211, RES210, RES202, RES2 (H, RES200, and sums up to generate a 4-bit return signal BitO~Bit3, and respectively output the 1-bit return signal Bit0/Bitl/Bit2/Bit3 from the four signal output terminals N1/N2/N3/N4. Similarly, when there are only 4 LED channels, It is only necessary to generate a 3-bit return signal through the sum of the first and second logic elements. 14 200849173 In the application of the 'Miscellaneous' Figure 7, a plurality of driving devices will control the illumination of the planar arrangement. The operation of the diode to display the image. The processor cpu sequentially sends the status to each drive device 1GG. The signal number E coffee Q, touch all the driver lakes to grab the reward signals Blt0~Blt3, and then delete the signal by the return signal to know that the whole system has a light-emitting diode error (ie open/short circuit, leakage, high temperature) The number of channels in which the processor cpu is pre-set as shown in "Figure 3", the return signal and its meaning depend on the table, so when the message is captured, the report can directly know the return signal. The present invention has been described in the foregoing preferred embodiments. As a result of the above description, it is not intended to limit the present invention, and the skilled person will make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of patent protection of the present invention shall be subject to the definition of the patent scope of the present invention. [A brief description of the drawings] Fig. 1A is a schematic diagram of a driving device of eight known light-emitting diode channels. In the driving device of "1A", 8 LEDs 1 are forced to be t-tagged and clock-woven; - Figure 2 is also a Embodiment drive device in this state Schematic diagram of the mouth of the mouth - the polar body through a light-emitting diode channel as an example, the gift of the meaning of the pair of driving =, according to the invention, the binary return of the state of the light-emitting diode channel; body channel state 4 is a schematic diagram of a driving circuit of a binary return light-emitting diode 200849173 driving device according to the present invention; FIG. 5 is a driving device of a binary return light-emitting diode channel state according to the present invention, and another implementation BRIEF DESCRIPTION OF THE DRAWINGS FIG. 6 is a schematic diagram of a driving device for binary return light-emitting diode state according to the present invention, a signal converter of an embodiment; and FIG. 7 is a binary return according to the present invention. A schematic diagram of an application system of an embodiment of a driving device for a light-emitting diode channel state. [Main component symbol description] 10 drive device 100 drive device 110 drive circuit 112 controller 113 control unit 114 detector 115 open circuit detection unit 116 short circuit detection unit 117 logic element 130 signal converter 132 first logic element 134 second Logic Element 136 Third Logic Element CLK Clock Signal Flag Error Flag 16 200849173
CHI CH2 CH3 CH4 ' CH5 CH6 CH7 , CH8 CHm 51 52 53 54 55 56 k... ___ 57 58 BitO Bitl Bit2 Bit3 NCHm SW1 發光二極體通道 發光二極體通道 發光二極體通道 發光二極體通道 發光二極體通道 發光二極體通道 發光二極體通道 發光二極體通道 發光二極體通道 偵測訊號 偵測訊號 偵測訊號 偵測訊號 偵測訊號 偵測訊號 偵測訊號 偵測訊號 回報訊號之一位元 回報訊號之一位元 回報訊號之一位元 回報訊號之一位元 通道端點 開關 17 200849173 SW2 開關 GND 接地 Vref 參考訊號 Sm 偵測訊號 VDD 電壓源 Dm 發光二極體 CS1 第一訊號 CS2 第二訊號 Vrefo 開路電壓 Vrefs 短路電壓 RES31 第一加總訊號 RES30 第一加總訊號 RES21 第一加總訊號 RES20 第一加總訊號 RES11 第一加總訊號 RES10 k 砉 v-f ϊ— 弟一加緦訊鈮 RES01 第一加總訊號 RESOO 第一加總訊號 RES212 第二加總訊號 RES211 第二加總訊號 RES210 第二加總訊號 PJES202 第二加總訊號 RES201 第二加總訊號 18 200849173 RES200第二加總訊號 N1 訊號輸出端 N2 訊號輸出端 N3 訊號輸出端 N4 訊號輸出端 CPU 處理器 ERREQ狀態判斷訊號CHI CH2 CH3 CH4 ' CH5 CH6 CH7 , CH8 CHm 51 52 53 54 55 56 k... ___ 57 58 BitO Bitl Bit2 Bit3 NCHm SW1 LED Diode Channel LED Diode Channel LED Diode Channel LED Diode Channel Light Emitting Diode Channel Illumination Diode Channel Illumination Diode Channel Illumination Diode Channel Detection Signal Detection Signal Detection Signal Detection Signal Detection Signal Detection Signal Detection Signal Detection Signal Report Signal one bit return signal one bit return signal one bit return signal one bit channel end switch 17 200849173 SW2 switch GND ground Vref reference signal Sm detection signal VDD voltage source Dm LED II1 A signal CS2 second signal Vrefo open circuit voltage Vrefs short circuit voltage RES31 first summed signal RES30 first summed signal RES21 first summed signal RES20 first summed signal RES11 first summed signal RES10 k 砉vf ϊ - brother one Add 缌 铌 RES01 first sum signal RESOO first sum signal RES212 second sum signal RES211 second sum signal RES210 second The total sum signal of the second signal PJES202 RES201 second summed signal 18 200849173 RES200 second summed signal output terminal of signal N1 N2 N3 signal output terminal of signal output terminal N4 signal output terminal of the processor CPU state determination signal ERREQ
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