201021616 \j〇\j l v/ 29407twf.doc/n 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種光源電路與電子裝置，且特別是 有關於一種可以檢測信號狀態並進行電壓轉換的光源電路 與電子裝置。 【先前技術】 邏輯閘是在集成電路（Integrated Circuit, 1C)上的基201021616 \j〇\jlv/ 29407twf.doc/n IX. Description of the Invention: [Technical Field] The present invention relates to a light source circuit and an electronic device, and more particularly to a signal state and voltage conversion Light source circuit and electronic device. [Prior Art] The logic gate is a base on an integrated circuit (1C)
本組件。簡單的邏輯閘可以利用電晶體組成，並且可以使 得信號通過邏輯閘之後，產生高電平或者低電平的信號。 上述高電平與低電平可以分別代表邏輯上的「真」與「假」 或二進位當中的「1」與「〇」，從而實現邏輯運算。並且， 邏輯閘可以組合使用實現更為複雜的邏輯運算。 —般來說，利用反及閘（NAND Gate)所設計出的電 路，使用者無法直接判斷輸入信號狀態（輸入信號由反及 閘的輸入端輸人）。如此-來’將會增加輸人信號檢測的 複雜度。 【發明内容】 本發明的目的就是在提供—種光源電路與電子裝置， 藉此可以檢測信號狀態，還可以進行 本發明提出-種光源電路，包括第一發光二極體 二發光二極體與選擇單元。第—發 ^發光一極體的陰極接收第 =入信號，其陽極接收第—電壓。第二發光二 號T極接收第-電壓。選擇單元; Μ接收弟鮮三電壓，並依據第—料 201021616 —-----./ 29407twf.doc/n 第二電壓或第三電壓作為 一發光二極體的導通狀態 輸出電壓。 在本發明-實施例令，光源電路更包括第 =電路。第—電_接於第—電壓與第—發光二極體的 ❹ ㈣料錄人端赌㈣，綠電路的輸 接至第發光一極體的陽極，分壓電路的輪屯 ^一分壓信號並傳送至選擇單元，其巾，獅單元會依 分堡信號’而選擇第二電壓或第三電壓作為輪出電壓。 在本發明一實施例中，分壓電路包括第二電阻盘 =° !二電阻的第—端祕至第—發光二極體的陽極了 八弟—端產生分壓信號。第三電阻的第一端耦接至第二雷 阻的第二端，其第二端耦接至接地端。 ，本發明一實施例中，選擇單元包括第四電阻與電晶 體。第四電阻的第一端接收第二電壓，其第二端產生輸出 電壓。電晶體的基極端接收分壓信號，其射極端接收第三 電壓’其汲極端耦接至第四電阻的第二端。 在本發明一實施例中，第一電壓與第二電壓相同。 在本發明一實施例中，第一電壓與第二電壓不同。 在本發明一實施例中，第三電壓為接地電壓。 一本發明提出一種電子裝置，包括網路模組、至少二發 光二極體與選擇單元。網路模組用以產生至少二網路^ 號。上述發光二極體的陰極接收二網路信號，上述發光二 極體的陽極接收第—電壓。選擇單元用以接收第二電壓與 第二電壓，並依據二發光二極體的導通狀態而選擇第二電This component. A simple logic gate can be made up of a transistor and can cause a high or low signal after the signal passes through the logic gate. The above high level and low level can respectively represent logical "true" and "false" or "1" and "〇" in the binary, thereby implementing logical operations. Also, logic gates can be combined to achieve more complex logic operations. In general, with the circuit designed by the NAND Gate, the user cannot directly judge the state of the input signal (the input signal is input from the input of the opposite gate). This - will increase the complexity of the input signal detection. SUMMARY OF THE INVENTION The object of the present invention is to provide a light source circuit and an electronic device, thereby detecting a signal state, and the present invention can also be implemented as a light source circuit, including a first light emitting diode and two light emitting diodes. Select the unit. The cathode of the first-light emitting body receives the first input signal, and the anode receives the first voltage. The second illuminating No. 2 T pole receives the first voltage. Selecting the unit; Μ receiving the younger three voltages, and according to the first material 201021616 —-----./ 29407twf.doc/n the second voltage or the third voltage as the conduction state of the light-emitting diode output voltage. In the present invention, the light source circuit further includes a ith circuit. The first - electricity _ connected to the first - voltage and the first - illuminating diode ❹ (four) material recorded end gambling (four), the green circuit is connected to the anode of the first light-emitting body, the rim of the voltage divider circuit The pressure signal is transmitted to the selection unit, and the lion unit selects the second voltage or the third voltage as the wheel-out voltage according to the distribution signal. In an embodiment of the invention, the voltage dividing circuit includes a second resistive disk = °! The second end of the second resistor is connected to the anode of the first light-emitting diode to generate a voltage dividing signal. The first end of the third resistor is coupled to the second end of the second lightning resistor, and the second end of the third resistor is coupled to the ground. In an embodiment of the invention, the selection unit includes a fourth resistor and an electric crystal. The first end of the fourth resistor receives the second voltage and the second end produces an output voltage. The base terminal of the transistor receives the divided voltage signal, and the emitter terminal receives the third voltage & is coupled to the second terminal of the fourth resistor. In an embodiment of the invention, the first voltage is the same as the second voltage. In an embodiment of the invention, the first voltage is different from the second voltage. In an embodiment of the invention, the third voltage is a ground voltage. An invention provides an electronic device comprising a network module, at least two light emitting diodes and a selection unit. The network module is used to generate at least two network numbers. The cathode of the light-emitting diode receives a two-network signal, and the anode of the light-emitting diode receives a first voltage. The selecting unit is configured to receive the second voltage and the second voltage, and select the second power according to the conductive state of the two light emitting diodes
201021616 J 29407twf.doc/n 壓或第三電壓作為輸出電壓。 +在本發明-實施例中，電子裝置更括第1阻 私路。第—電阻_於第_電壓與二發光 ^ 間。分壓電路包括第二電阻與第三電阻。第4=之 至二發光二極體的陽極’其第二端產生分壓作號。 接ϊ接^第—端祕至第二電阻的第二端，其第二端執 實施例中，選擇單元包括第四電阻與電晶 帝第四電阻的弟-端接收第二電壓，其第二端產生輸出 ’、壓。電晶體的基極端接收分壓錢，其射極端接收第三 電壓，其沒極端輕接至第四電阻的第二端。 丄，發明藉由發光二極體的導通（發光）與否來檢測輸 號（或網路信號）的狀態。並且，選擇單元也利用發 光一極體的導通與否’來進行電壓轉換來產生輸出電壓（亦 即選擇第二電壓與第三電壓作為輸出電壓）。藉此，本發 明可以檢測信號的狀態外，還可以進行電壓轉換。另外， 本發明除了可以藉由發光二極體來檢測輸入信號的狀態’ 亦可藉由輸出電壓來檢測輸入信號的狀態，故可增加檢測 輪入信號的便利性。 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂’下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 【實施方式】 圖1、繪示為本發明一實施例之光源電路的電路圖。請 29407twf.doc/n 201021616 ---......v 翏照圖1 ’本實施例所提供的光源電路100可以包括發光 二極體L1與L2以及選擇單元110。發光二極體L1 ^險 極接收輸入信號IN1，發光二極體L1的陽極接收電壓 發光二極體L2的陰極接收輸入信號IN2，發光二極體〇 的陽極接收電壓V2。選擇單元11〇用以接收電壓V2與 V3，並依據發光二極體L1與L2的導通狀態而 ^ V2或V3作為輸出電壓V0。 擇電壓 ❹ 在整體作動上，當輪入信號INI與ιΝ2其中之_ 輯低電壓準位（Low)，或是輸入信號腕盘恥 邏輯低電壓準位時，使得發光二極體u與u盆中之2 猎此’選擇早凡110會選擇電壓V2作為輸出電壓v〇。 另一方面，當輸入信號IN1與IN2時 =(剛時，使得發光二極體U與门 在二擇中單元110會選擇電壓V3作為輪出電 ❹ 5 光源電路刚除了可崎視並藉此， 的狀態外，還可以進行電壓韓 出輪入域聰與IN2 會依據發光二極體L1 * Lf^=：亦特擇單元U〇 與V3其中之一作為輪出電壓知^狀1而選擇電壓V2 在另一實施例中，佬用去 電壓V1不同，亦即電壓v = 求將電壓V2設為與 限制其範圍。 乂§又為3.3V或l.8V，但不 -V 29407twf.doc/n 201021616 ，2綠不為本發明—實施例之光源電路的詳細電路 圖。言月參照圖2,光源電路100還可以包括電阻則盘分壓 電路2K)。電阻R1 _於電壓V1與發光二極體u 極之間，用以作為一限流電阻。 分壓電路210的輸入端耦接至發光二極體 極，分壓電路210的出端產生分壓信號並傳送至201021616 J 29407twf.doc/n Voltage or third voltage as output voltage. + In the present invention - the electronic device further includes a first blocking circuit. The first-resistance_ is between the first voltage and the second light. The voltage dividing circuit includes a second resistor and a third resistor. The anode of the 4th to the 2nd LED has a partial pressure number at its second end. Connecting the first end to the second end of the second resistor, in the second end embodiment, the selecting unit includes a fourth resistor and a second end of the fourth resistor of the electromorphic crystal receives the second voltage, the first The two ends produce an output ', pressure. The base terminal of the transistor receives the divided voltage, and the emitter terminal receives the third voltage, which is not extremely lightly connected to the second end of the fourth resistor. In other words, the invention detects the state of the input signal (or network signal) by the conduction (lighting) of the light-emitting diode. Further, the selection unit also performs voltage conversion by using the conduction or not of the light-emitting diode to generate an output voltage (i.e., selects the second voltage and the third voltage as output voltages). Thereby, the present invention can detect the state of the signal and can also perform voltage conversion. Further, the present invention can detect the state of the input signal by the light-emitting diodes. The state of the input signal can also be detected by the output voltage, so that the convenience of detecting the round-in signal can be increased. The above and other objects, features, and advantages of the present invention will become more apparent <RTIgt; Embodiments FIG. 1 is a circuit diagram of a light source circuit according to an embodiment of the present invention. Please refer to FIG. 1 ' The light source circuit 100 provided in this embodiment may include the light-emitting diodes L1 and L2 and the selection unit 110. The light-emitting diode L1 receives the input signal IN1 and the anode receiving voltage of the light-emitting diode L1. The cathode of the light-emitting diode L2 receives the input signal IN2, and the anode of the light-emitting diode 接收 receives the voltage V2. The selecting unit 11 is configured to receive the voltages V2 and V3 and to use the V 2 or V3 as the output voltage V0 depending on the conduction states of the LEDs L1 and L2. Select voltage ❹ In the overall operation, when the signal INI and ιΝ2 are in the low voltage level (Low), or the input signal wrist is at the logic low voltage level, the LEDs u and u are illuminated. In the 2 hunting, 'selecting the early 110 will select the voltage V2 as the output voltage v〇. On the other hand, when inputting signals IN1 and IN2 = (just when, so that the light-emitting diode U and the gate in the second selection unit 110 will select the voltage V3 as the turn-off power ❹ 5 the light source circuit has just been able to be seen and thereby In addition to the state of the state, it is also possible to carry out the voltage of the Hans and the instinct and the IN2 will be selected according to the light-emitting diode L1 * Lf^=: also one of the units U〇 and V3 is selected as the wheel-out voltage. Voltage V2 In another embodiment, the de-voltage V1 is different, that is, the voltage v= is set to set the voltage V2 to limit its range. 乂§ is 3.3V or 1.8V, but not -V 29407twf.doc /n 201021616, 2 Green is not a detailed circuit diagram of the light source circuit of the present invention - the embodiment of the light source circuit 100 may further include a resistor-distribution circuit 2K). The resistor R1_ is used between the voltage V1 and the u-pole of the light-emitting diode as a current limiting resistor. An input end of the voltage dividing circuit 210 is coupled to the LED body, and a voltage dividing signal is generated at the output end of the voltage dividing circuit 210 and transmitted to
110。選擇單元11〇便會依據分難號，而選擇電壓V ❹ V3作為輸出·νο。在本實施例中，分壓電路可以 包括電阻R2與R3。電阻R2的第—端_至發光二極體 =的陽極，電阻R2的第二端產生分壓信號。電阻们的 第-端搞接至電阻R2的第二端，電阻R3的第二端轉接至 接地端GND。 另外，選擇單元U〇可以包括電阻R4與電晶體丁^。 電阻·Κ4的第-端接收電壓V2，電阻R4的第二端產生輪 出私壓VO。電晶體Trl的基極端接收分壓信號，電晶體 Trl的射極端接收電壓V3，電晶體TH的汲極 Φ 阻R4的第二端。 设% 。在整體作動上，當輸入信號ΙΝ1與ΙΝ2其中之一為邏 輯低電壓準位，或是輸入信號IN1與腿同時為邏輯低^ 壓準位時，使得發光二極體L1與L2其中之一導通（發 光）’或是發光二極體L1與L2同時導通（發光）。此時: 電阻R2的第一端的電壓會降低，而使得電阻R3上的壓降 也跟著降低。而分壓電路210所產生的分壓信號與電阻R3 上的壓降相同，並且會被傳送至電晶體Trl的基極端。由 29407twf. do c/n 201021616 =分壓信號低於電晶體Trl的導通電壓’故電晶體τ 導通。而在電晶體Trl不導通的狀態下，輪出電 直接為電壓V2。 亂 ❹ 另一方面，當輸入㈣節與m2同時為 準位時’使得發光二極體L1與L2都不導通（不二 於發光二極體U與L2都不導通’使得電阻R3上= 增加，亦即使得分壓電路210所產生的分壓卜 加，故電晶體™導通。由於電晶體Trl 電壓增 VO則為電壓V3。在本實施例中，電壓 1出電壓 大小為相同，且例如為工作電壓5V，而電壓V3a、电尖 地電壓。藉此，光源電路1〇〇除了可以檢視並頻110. The selection unit 11 selects the voltage V ❹ V3 as the output νο according to the division number. In this embodiment, the voltage dividing circuit may include resistors R2 and R3. The anode of the resistor R2 is connected to the anode of the light-emitting diode, and the second end of the resistor R2 generates a voltage dividing signal. The first end of the resistor is connected to the second end of the resistor R2, and the second end of the resistor R3 is switched to the ground GND. In addition, the selection unit U〇 may include a resistor R4 and a transistor. The first terminal of the resistor Κ4 receives the voltage V2, and the second terminal of the resistor R4 generates the vacant voltage VO. The base terminal of the transistor Tr1 receives the divided voltage signal, the emitter terminal of the transistor Trl receives the voltage V3, and the drain of the transistor TH Φ blocks the second end of the R4. Assume% . In the overall operation, when one of the input signals ΙΝ1 and ΙΝ2 is at a logic low voltage level, or the input signal IN1 and the leg are simultaneously at a logic low level, the light-emitting diodes L1 and L2 are turned on. (Lighting) 'Although the light-emitting diodes L1 and L2 are simultaneously turned on (lighting). At this point: the voltage at the first end of resistor R2 will decrease, and the voltage drop across resistor R3 will also decrease. The voltage dividing signal generated by the voltage dividing circuit 210 is the same as the voltage drop across the resistor R3, and is transmitted to the base terminal of the transistor Tr1. From 29407 twf. do c/n 201021616 = the divided voltage is lower than the turn-on voltage of the transistor Tr' so that the transistor τ is turned on. In the state where the transistor Tr1 is not turned on, the wheel discharge is directly the voltage V2. On the other hand, when the input (four) section and m2 are simultaneously at the same time, the light-emitting diodes L1 and L2 are not turned on (not the light-emitting diodes U and L2 are not turned on) so that the resistance R3 is increased. Even if the voltage division generated by the scrambling circuit 210 is increased, the transistor TM is turned on. Since the voltage of the transistor Tr1 is increased by VO, the voltage is V3. In the present embodiment, the voltage of the voltage 1 is the same, and for example It is a working voltage of 5V, and the voltage V3a, the electric tip ground voltage. Thereby, the light source circuit 1 can be viewed and combined.
信號IN1 * IN2的狀態外’還可以進行電壓轉換的=， 亦即選擇單兀110會依據發光二極體L1蛊L 態，而選擇電壓V2與V3其中之一作為輸出電壓 另-實施例中，使用者可視需求將電壓V2設為 ^同，亦即錢W設為3.3V或丨斯，但不限制其範 另外，由上述的說明，可以整理出輸入信號聰、 與輸出電壓VO的對應關係，如表i所示。 的電應關係’可以看出光源電路⑽可以作為 : 使r如此—來，本實施例所提供的光^ 电路漏喊可以檢視輸入信號IN1、腿的狀離 以作為反及閘使用來進行電壓轉換。此外，本實施例 源電路⑽除了和錄_發光二極齡通與否來 29407twf.doc/n 201021616 輸入信號INI、IN2的狀態’亦可藉由輪出電壓v〇的狀 態，來推測輸入信號IN卜IN2的狀態。因此，本實施例 可以增加檢測輸入信號INI、IN2的便利性。 'In the state of the signal IN1 * IN2, the voltage conversion can also be performed, that is, the selection unit 110 selects one of the voltages V2 and V3 as the output voltage according to the LED L1蛊L state. The user can set the voltage V2 to be the same as the requirement, that is, the money W is set to 3.3V or muse, but the fan is not limited. In addition, the above description can sort out the correspondence between the input signal and the output voltage VO. Relationship, as shown in Table i. It can be seen that the light source circuit (10) can be used as: to make r so that the light circuit provided in this embodiment can be used to detect the input signal IN1 and the leg shape as the reverse gate and use the voltage to perform the voltage. Conversion. In addition, in the present embodiment, the source circuit (10) can infer the input signal by the state of the turn-on voltage v〇 in addition to the state of the input signal INI, IN2 of the 29407 twf.doc/n 201021616. IN Bu IN2 status. Therefore, the present embodiment can increase the convenience of detecting the input signals INI, IN2. '
IN1 ΙΝ2 VO L L Η L Η Η Η L Η Η Η L 表1 圖3繪示為本發明一實施例之種電子装置的電路方塊 圖。請參照圖3，本實施例所提供的電子裝置3⑻包括網 路模組310、發光二極體LE1〜LEn與選擇單元32〇，其中 η為大於1的正整數。網路模組31〇用以產生網路信號 NS1〜NSn。發光二極體LE1〜LEn的陰極接收網路信^ NS1〜NSn，發光二極體LE1〜LEn的陽極接收電壓V4二 選擇單元320用以接收電壓V5與電壓V6，並依據發光二 極體LE1〜LEn的導通狀態而選擇電壓V5或電壓作為 輸出電壓V01。 ‘ 在本實施例中’發光二極體LE1〜LEn的數量可以依據 網路模組31〇所產生網路信號NS1〜NSn的數量來調整， 也就是說’若網路信號為2個，則發光二極體也配置2個， 網路信號為8個，則發光二極體則配置8個，以此類推。 11 201021616 w〇v / w. * 29407twf.doc/n 藉此，使用者便可以藉由發光二極體的導通（發光）與否， 來檢視網路信號NS1〜NSn的狀態。 、另外，電子裝置300的整體作動可以參照圖j實施例 之說明，故在此不再贅述。並且’本實施例之電子裝置3㈨ 亦可產生與反及閘電路相同的作用。如此一來，電子裝置 300除了可以檢視網路信號服〜NSn的狀態外還可以進 行電壓轉換。 〇 圖4繪示為本發明一實施例之電子裝置的詳細電路 圖。请參照圖4，本實施例所提供的電子裝置3〇〇還可以 包括電阻R5與分麗電路41〇。電阻R5轉接於電壓v4與 發光二極體LE1〜LEn的陽極之間，用以作為一限流電阻^ a分壓電路410的輸入端耦接至發光二極體LEl〜LEn ，陽極，分壓電路410的出端產生分壓信號並傳送至選擇 單兀320。而選擇單元32〇便會依據分壓信號，而選擇電 壓V5或電壓V6作為輸出電壓νοι。並且，分壓電路“ο 可以包括電阻R6與R7。電阻R6的第一端耦接至發光二 ❿ 極體LE1〜LEn的陽極，電阻R6的第二端產生分壓信號。 電阻R7的第一端輕接至電阻处的第二端，電阻^的°第 一h搞接至接地端GND。 另外，選擇單元320可以包括電阻R8與電晶體Tr2。 電阻R8的第-端接收電壓V5 ’電阻R8的第二端產生輸 出電塵V01。電晶體Tr2的基極端接收分壓信號，電晶體IN1 ΙΝ2 VO L L Η L Η Η Η L Η Η Η L Table 1 FIG. 3 is a circuit block diagram of an electronic device according to an embodiment of the present invention. Referring to FIG. 3, the electronic device 3 (8) provided in this embodiment includes a network module 310, LEDs LE1 LELEn and a selection unit 32A, where η is a positive integer greater than 1. The network module 31 is used to generate network signals NS1 NSNSn. The cathode receiving network signals NS1 to NSn of the LEDs LE1 to LEn, and the anode receiving voltage V4 of the LEDs LE1 to LEn are used to receive the voltage V5 and the voltage V6, and according to the LEDs LE1 The voltage of V5 or voltage is selected as the output voltage V01 by the ON state of the ~LEn. In the present embodiment, the number of the LEDs LE1 to LEn can be adjusted according to the number of network signals NS1 to NSn generated by the network module 31, that is, if the network signal is two, There are also two light-emitting diodes, eight for network signals, eight for light-emitting diodes, and so on. 11 201021616 w〇v / w. * 29407twf.doc/n This allows the user to check the status of the network signals NS1 to NSn by the conduction (lighting) of the LED. In addition, the overall operation of the electronic device 300 can be referred to the description of the embodiment of FIG. j, and therefore no further details are provided herein. And the electronic device 3 (9) of the present embodiment can also produce the same function as the anti-gate circuit. In this way, the electronic device 300 can perform voltage conversion in addition to the state of the network signal service ~NSn. 4 is a detailed circuit diagram of an electronic device according to an embodiment of the present invention. Referring to FIG. 4, the electronic device 3A provided in this embodiment may further include a resistor R5 and a branch circuit 41A. The resistor R5 is connected between the voltage v4 and the anode of the LEDs LE1 to LEn for coupling as an input terminal of the current limiting resistor 410 to the LEDs LE1 to LEn and the anode. The output of the voltage dividing circuit 410 generates a divided voltage signal and transmits it to the selection unit 320. The selection unit 32 selects the voltage V5 or the voltage V6 as the output voltage νοι according to the voltage division signal. Moreover, the voltage dividing circuit "o" may include resistors R6 and R7. The first end of the resistor R6 is coupled to the anode of the light-emitting diode bodies LE1 to LEn, and the second end of the resistor R6 generates a voltage dividing signal. The first end of the resistor is connected to the ground GND. The selection unit 320 may include a resistor R8 and a transistor Tr2. The first terminal of the resistor R8 receives the voltage V5'. The second end of the resistor R8 generates an output electric dust V01. The base end of the transistor Tr2 receives the divided voltage signal, the transistor
Tr2的射極端接收電壓v6，電晶體Tr2的汲極端耦接至電 阻R8的第二端。 12 29407twf.doc/n 201021616 本實施例之電子裝置300的整體作動可以參照圖2實 施例之說明，故在此不再贅述。並且，電子裝置3〇〇亦可 產生與反及閘電路相同的作用。如此一來，電子裝置卿 除了可以檢視網路信號NS1〜NSn的狀態外，還可以進行 電壓轉換來產生輪出電壓，並且也可以藉由輸出電磨來檢 測網路信號NS1〜NSn的狀態。 综上所述，本發明藉由發光二極體的導通（發光）與 $來檢測輸八信號（或網路信號）的狀態。並且，選擇單 元也利用發光二_的導通料，來進行電壓轉換來產生 輸出電壓（亦即選擇第二電M與第三電壓作為輸出電壓）。 藉此’本發明可以檢測信號的狀態外，還可以進行電麗轉 換。另1卜’本發明除了可以藉由發光二極體來檢測輸入信 號的狀態，亦可藉由輸出電壓來檢測輸入信號的狀態，故 可增加檢測輸入信號的便利性。 〜 雖然本發明已以較佳實施例揭露如上，然其並非用以 限J本發明’任何熟習此技藝者，在不脫離本發明之精神 © 和範圍内’當可作些許之更動與潤飾，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1繪示為本發明一實施例之光源電路的電路方塊 圖。 圖2繪示為本發明一實施例之光源電路的詳細電路方 塊圖。 圖3繪示為本發明一實施例之電子裝置的電路方塊 13 29407twf.doc/n 201021616The emitter terminal of Tr2 receives the voltage v6, and the drain terminal of the transistor Tr2 is coupled to the second terminal of the resistor R8. 12 29407 twf.doc/n 201021616 The overall operation of the electronic device 300 of this embodiment can be referred to the description of the embodiment of FIG. 2, and therefore no further details are provided herein. Moreover, the electronic device 3 can also generate the same function as the anti-gate circuit. In this way, in addition to the state of the network signals NS1 to NSn, the electronic device can perform voltage conversion to generate the wheel-out voltage, and can also detect the state of the network signals NS1 to NSn by outputting an electric grinder. In summary, the present invention detects the state of the input signal (or network signal) by the conduction (lighting) and the light emitting diode. Further, the selection unit also uses the conduction material of the light-emitting diode to perform voltage conversion to generate an output voltage (i.e., select the second power M and the third voltage as output voltages). Thus, the present invention can detect the state of the signal and can also perform the circuit conversion. In addition, in the present invention, the state of the input signal can be detected by the light-emitting diode, and the state of the input signal can be detected by the output voltage, so that the convenience of detecting the input signal can be increased. The present invention has been disclosed in the above preferred embodiments, and it is not intended to limit the invention to those skilled in the art, and may be modified and modified without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit block diagram of a light source circuit according to an embodiment of the present invention. 2 is a detailed circuit block diagram of a light source circuit according to an embodiment of the present invention. 3 is a circuit block diagram of an electronic device according to an embodiment of the invention. 13 29407twf.doc/n 201021616
\J KJ \J I W. _1_ T 圖。 圖4繪示為本發明一實施例之電子裝置的詳細電路方 塊圖。 【主要元件符號說明】 100 :光源電路 U、L2、LE1〜LEn :發光二極體 VI、V2、V3、V4、V5、V6 :電壓 VO、V01 :輸出電壓 300 :電子裝置 110、320 :選擇單元 R1〜R8 :電阻\J KJ \J I W. _1_ T map. 4 is a detailed circuit block diagram of an electronic device according to an embodiment of the invention. [Description of main component symbols] 100: Light source circuits U, L2, LE1 to LEn: Light-emitting diodes VI, V2, V3, V4, V5, V6: Voltages VO, V01: Output voltage 300: Electronic devices 110, 320: Selection Units R1 to R8: resistor
Tr卜Tr2 :電晶體 INI、IN2 :輸入信號 210、410 :分壓電路 310 :網路模組 NS1〜NSn :網路信號 14Tr Tr2: transistor INI, IN2: input signal 210, 410: voltage dividing circuit 310: network module NS1~NSn: network signal 14