201019086 六、發明說明： 【發明所屬之技術領域】 . . + 本發明係關於一種通用序列匯流排(USB)充電系統，特別是有 關於一種利用USB識別接腳(ID pin)的訊號準位來判斷此usb接 頭是用資料傳送或電源輸入，並調整充電模組的設定端的對應阻 抗。 〜 Φ ❹ 【先前技術】 隨著資訊之發展，可攜式電子裝置越來越普及，這些電子裝 置電源通常是由内部之鐘電池供應，使用者必須藉由對鐘電池充 ，以使用此裝置，-般的電子裝置係_各_製造的外接充電 器對鐘電池進行充電，而㈣者必須針對不_產品*攜帶各廠 商的充電器’造成使用者的不便。 增加。 目前通用串列匯流排(USB)已經廣泛地設置於電腦系統與電 子裝置等，透過通用串列匯流排將電腦與電子裝置相連接，可進 行資料傳^供給電子裝置之電源，—般而言，腿所提供的電 源為5〇〇毫安培，若電流超過時，通常會加外部電源供電，然而 很=電子留USB埠而將電源插座省略了，因此USB埠必 貝區刀此時為負料傳輸或電源輪入，市場上有針對此問題設計出 :種，源輪人和單電源輸入充電晶片(IC)，^而雙電源充電ic ^ 斤成本皆兩於單輸入充電晶片，造成可攜式電子裝置的成本 【發明内容】 有鐘於上㈣知技藝之贿，本㈣之―目的歧在提供一 201019086 種通用序列匯流排(USB)充電系統，以達到自動判斷USB應用的 種類而調整充電電流的功效。 本發明之另一目的就是在提供—種通用序列匯流排(USB)充 電系綿，以達到使用一單輸入充電晶片來降低成本之功效。 ❹ ❹ 為了達到上述目地，本發明提供一種通用序列匯流排(USB) 充電系統’其包含-充電模組、一具有識別腳位(1〇_的刪接 頭、一開關元件以及複數個阻抗元件。每一個複數阻抗元件的一 端以電性連接充電模組的設定端，端以電财制開關 元件’此開關元件根據識別腳位(ID _的訊號，選擇性使得此複 數元件產生朗或分開，來改變充賴域定端顺應的等效電 阻值，進而調整充電電流。 承上所述，依本發明之通用序列匯流排(USB)充電系統，其可 具有一或多個下述優點： ⑴此充電系統可藉由單輸入充電忙達成雙輸入充㈣的充 電電流調整。 (2)此域系，统可藉由通用序列匯流排(USB)，以解決使用電 子裝置時需要其他規格充電器。 【實施方式】 «月參閱第1圖，其係為本發明之通用序列匯流卿充電系 統之方塊圖。利用USB的識別接腳(IDpin) 7特性，結合充電模 組設定端2之阻抗和開關元件5所形成的迴路，來控制充電電流 的大小。 此充電電路8包含一充電模組卜第一阻抗3、第二阻抗4及 -開關元件5’此充電模組丨具有一狀端2以電性連接第一阻抗 .201019086201019086 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a universal serial bus (USB) charging system, and more particularly to a signal level using a USB identification pin (ID pin). It is judged that the usb connector is used for data transmission or power input, and the corresponding impedance of the set end of the charging module is adjusted. ~ Φ ❹ [Prior Art] With the development of information, portable electronic devices are becoming more and more popular. These electronic devices are usually powered by internal clock batteries. Users must charge the clock batteries to use the device. The general electronic device _ each external battery charger is used to charge the clock battery, and the (4) person must carry the charger for each manufacturer to not cause the user's inconvenience. increase. At present, the universal serial bus (USB) has been widely installed in computer systems and electronic devices, and the computer is connected to the electronic device through a universal serial bus, and the data can be transmitted to the power supply of the electronic device. The power supply provided by the leg is 5 mA. If the current exceeds, the external power supply is usually added. However, the electronic power is left behind and the power socket is omitted. Therefore, the USB 埠 区 knife is negative at this time. Material transmission or power supply, the market has designed for this problem: kind, source wheel and single power input charging chip (IC), ^ and dual power charging ic ^ kg cost two on a single input charging chip, resulting in The cost of the portable electronic device [The content of the invention] There is a slap in the fourth (four) knowing the skill, the purpose of this (four) is to provide a 201019086 universal serial bus (USB) charging system to automatically determine the type of USB application Adjust the effect of the charging current. Another object of the present invention is to provide a universal serial bus (USB) charging system to achieve cost reduction using a single input charging chip. In order to achieve the above object, the present invention provides a universal serial bus (USB) charging system that includes a charging module, a deletion connector having a recognition pin (1〇_, a switching element, and a plurality of impedance elements). One end of each of the plurality of impedance elements is electrically connected to the set end of the charging module, and the end is electrically connected to the switching element. The switching element selectively or horizontally separates the plurality of elements according to the identification pin (ID__ signal). To change the equivalent resistance value of the charging terminal, and then adjust the charging current. As described above, the universal serial bus (USB) charging system according to the present invention may have one or more of the following advantages: (1) The charging system can achieve the charging current adjustment of the dual input charging (4) by single input charging. (2) This domain system can be used to solve the charging of other specifications when using the electronic device by using the universal serial bus (USB). [Embodiment] «Monthly refer to Fig. 1, which is a block diagram of the universal sequence sinking charging system of the present invention. The characteristics of the identification pin (IDpin) 7 of USB are combined with the charging module. The impedance of the terminal 2 and the circuit formed by the switching element 5 control the magnitude of the charging current. The charging circuit 8 includes a charging module, a first impedance 3, a second impedance 4, and a switching element 5'. Has a terminal 2 to electrically connect the first impedance. 201019086
i及/二阻抗4 ’第—阻抗3可為電阻’其—端連接至充電模組設 疋端2，另一端連接至地端，第二阻抗4可為電阻，其一端連接至 充電模組設定端2，與第一阻抗3形成並聯形式，另一端連接至開 關元件5’此開關元件5可為M〇SFET，其一端連接至第二阻抗4, 另知連接至地知，並有一端連接至USB埠之識別接腳(ID ，此識別接腳(ID pin”因應聰為資料傳送或電源輸入 之應用’並提供不同準位之電壓值至開關元件5。 t USB做資料傳輸時’ USB埠之辨識接腳（ID㈣7為浮 切接狀態，由於辨識接腳（IDpin)7在系統内部皆會有一此請妳 迴路，因此必須加上-_元件5#區隔，避免充電模組設定端2 和聰辨識接腳（IDpin) wPullHight迴路相触，並將高準 位電壓輸出至_元件5，驅賴關元件5關，此時第二阻抗元 件4與酬元件5迴路形成開路，充賴組設定端2的電流無法 流過第二阻抗耕4及_元件5 ,充電模組設定端2與地端的等 效電阻值為第-阻抗元件3 _值，因料效電阻值大於第一阻 办抗讀3與第二阻抗元件4的並·，並制較小的電流，達成 ©小電流充電模式，以避免電腦在提供大電流充電並進行㈣傳輸 的同時’產生過大的電流造成電腦當機。 當USB做電源輸入時，贈埠之辨識接卿d師輸出低電 位，驅使關耕5導通，此時第—阻抗元件3和第二阻抗元件4 形成並聯狀態，充電模組設定端2與地端的粒電阻值因為阻抗 並聯而降低，此時充電電流將會由第—阻抗3和第二阻抗4並聯 的電阻值決定，等效電阻值越小將會得_大的電流，因此充電 電流可以加大’加快充電飽和的速度。 請參閱第2圖，其係為本發明之通用序列匯流排(u電系 201019086 統之實施電路圖。在此實施例中，充電模組係以晶片EMC5754來 實現’而阻抗元件係以電阻來實現。利用USB的識別接腳（IDpin) 上的訊號特性，由連接晶片EMC5754的設定端之電阻R633、 R611，以及電晶體q6〇6，來控制充電電流的大小。 此充電電路包含一晶片EMC5754、第一電阻R611、第二電阻 R633及一電晶體Q606。此晶片EMC5754具有一設定端PR〇G 以電性連接電阻R611及電阻R633，電阻R611其一端連接至充電 模組設定端PROG，另一端連接至地端GND，電阻R633其一端 ® 連接至充電模組設定端PROG，與R611形成並聯形式，另一端連 接至電晶體Q606 ’此電晶體為MOSFET，其源極端連接至電阻 R633 ’其汲極端連接至地端GND，並且uSB埠之識別接腳(ID pin) 以電性連接至此電晶體的閘極端’此識別接腳（IDpin)因應usb 為資料傳送或電源輸入之應用，並提供不同準位之電壓值至雷曰 體控制導通或截止。 當USB在做資料傳輸時，即表示此充電電路與一電腦相接’ 則USB埠之辨識接腳（IDpin)為浮接狀態，由於辨識接腳(IDpin) © 在系統内部皆會有一 Pull Hight迴路，因此必須加上電晶體q6〇6 ^ £隔’避免晶片EMC5754的設定端PROG和USB辨識接腳(Π) pin)的Pull Hight迴路相衝突’並輸出高準位電壓至電晶體q6〇6 閘極..驅使電晶體Q6〇6關閉，此時電阻R633與電晶體Q606的 匕路升v成開路’晶片EMC5754設定端的電流無法流過電阻R633 及電晶體Q606，因此晶片EMC5754之設定端PROG與地端GND 的等效電阻值為R611的阻值(2.5K歐姆），電阻R633即失去該功 能，晶片EMC5754設定端PR0G之等效電阻值越大將會得到越小 的充電電流，因此充電電流可以變小，達成小電流充電模式，以 .201019086 • 避免電腦在提供大電流充電並進行資料傳輪的同時，產生過電流 而造成電腦當機。 當USB在做電源輸入時，即表示使用者將具有USB接頭的 充電器與此充電電路相接，USB埠之辨識接腳(id pin)輸出低電 位，電晶體Q606導通，並在電晶體Q6〇6產生源極到汲極的電流， 此時電阻R611和電阻R633形成並聯狀態，若忽略電晶體導通時 的電阻值，晶片EMC5754的設定端pR0G與地端GND的等效電 ❹阻值為電阻R611和電阻R633並聯值(1〇κ歐姆並聯2 5]<：歐姆為 2Κ歐姆）’此時充電電流將由並聯的電阻值決定，晶片emc5乃4 設料PRQG之敎電雜越小將會制越朗充電電流，因此 充電電流可以加大，加快充電飽和的速度。 W透過上述此充電系統，便可使用比雙輸入充電晶片更便宜的 單輪人充電晶片（例如晶片EMC5754)來達成的應用辨識及充電電 流調整的功效。 以_L所劍I為舉彳雜，巾非為關性者。任何未脫離本發明 之精雜_，㈣其進行之等效修改或變更，均應包含於後附 之申請專利範圍中。 【圖式簡單說明】 第1 ®係為本發明之通用序列匯流排(USB)充電系、統之方塊圖； 以及 第2 ®係為本發明之通用序列匯流排⑽B)充電系統之實施電路 201019086 【主要元件符號說明】 1 :充電模組； 2:充電模組設定端； 3:第一阻抗； 4:第二阻抗； 5:開關元件； 6 : USB 埠； 7 : USB埠識別腳位；以及 ❿ 8:充電電路。i and / / two impedance 4 'th - impedance 3 can be a resistor 'the end is connected to the charging module terminal 2, the other end is connected to the ground, the second impedance 4 can be a resistor, one end is connected to the charging module The setting terminal 2 is formed in parallel with the first impedance 3, and the other end is connected to the switching element 5'. The switching element 5 can be an M〇SFET, one end of which is connected to the second impedance 4, and is also known to be connected to the ground and has one end. Connect to the USB 埠 identification pin (ID, this identification pin (ID pin) for the application of data transmission or power input 'and provide different levels of voltage value to the switching element 5. t USB for data transmission' The identification pin of the USB port (ID (4) 7 is in the floating cut state. Since the ID pin 7 has a loop inside the system, it is necessary to add the -_ component 5# to avoid the charging module setting. The terminal 2 and the smart pin (IDpin) wPullHight circuit are in contact with each other, and the high-level voltage is output to the _ component 5, and the driving component 5 is turned off. At this time, the second impedance component 4 and the re-enerating component 5 form an open circuit, and the charging is completed. The current of the set terminal 2 of the Lai group cannot flow through the second impedance tilling 4 and the _ component 5, charging The equivalent resistance value of the set terminal 2 and the ground end of the electric module is the value of the first impedance element 3 _, because the material effect resistance value is greater than the sum of the first anti-reading 3 and the second impedance element 4, and the smaller is made. Current, achieve the © small current charging mode to avoid the computer providing high current charging and (4) transmission while generating too much current causing the computer to crash. When USB is used as the power input, the identification of the gift is low. The potential drives the switch 5 to be turned on. At this time, the first impedance element 3 and the second impedance element 4 are connected in parallel, and the grain resistance value of the charging terminal set terminal 2 and the ground terminal is lowered due to the parallel connection of the impedance, and the charging current will be The resistance value of the first impedance-3 and the second impedance 4 are determined in parallel. The smaller the equivalent resistance value is, the larger the current will be, so the charging current can be increased to 'accelerate the charging saturation speed. Please refer to Fig. 2, It is a general-purpose serial bus of the present invention (the circuit diagram of the system of the system of 20101086. In this embodiment, the charging module is implemented by the chip EMC5754' and the impedance element is realized by the resistor. The identification pin of the USB is utilized ( IDpin) The signal characteristic is controlled by the resistors R633, R611 and the transistor q6〇6 connected to the set end of the chip EMC5754. The charging circuit comprises a chip EMC5754, a first resistor R611, a second resistor R633 and a Transistor Q606. The chip EMC5754 has a set terminal PR〇G to electrically connect the resistor R611 and the resistor R633. One end of the resistor R611 is connected to the charging module setting terminal PROG, the other end is connected to the ground GND, and the resistor R633 has one end®. Connected to the charging module setting terminal PROG, formed in parallel with R611, the other end is connected to the transistor Q606 'This transistor is a MOSFET, its source terminal is connected to the resistor R633 'the other terminal is connected to the ground GND, and the uSB is The identification pin (ID pin) is electrically connected to the gate terminal of the transistor. 'This identification pin (IDpin) responds to the application of usb as data transmission or power input, and provides voltage values of different levels to the control of the Thunder body. Or deadline. When the USB is doing data transmission, it means that the charging circuit is connected to a computer. Then the identification pin (IDpin) of the USB port is in a floating state. Since the ID pin is used, there is a Pull Hight inside the system. The circuit, therefore, must be connected with the transistor q6〇6 ^ £ 'avoid the chip EMC5754 set-end PROG and USB identification pin (Π) pin) Pull Hight loop conflicts 'and output high-level voltage to the transistor q6〇 6 Gate: Drives the transistor Q6〇6 to turn off. At this time, the resistor R633 and the transistor Q606 are opened to open circuit. The current at the set end of the chip EMC5754 cannot flow through the resistor R633 and the transistor Q606. Therefore, the setting end of the chip EMC5754 The equivalent resistance value of PROG and ground GND is the resistance value of R611 (2.5K ohms). The resistor R633 loses this function. The larger the equivalent resistance value of the PR5G of the chip EMC5754, the smaller the charging current will be. The charging current can be reduced to achieve a small current charging mode to .201019086 • Avoid the computer causing overcurrent when the computer supplies high current charging and data transmission, causing the computer to crash. When the USB is doing power input, it means that the user connects the charger with the USB connector to the charging circuit, the USB id pin (id pin) outputs a low potential, the transistor Q606 is turned on, and the transistor Q6 is turned on. 〇6 generates a source-to-drain current. At this time, the resistor R611 and the resistor R633 form a parallel state. If the resistance value when the transistor is turned on is ignored, the equivalent electric resistance of the set terminal pR0G of the wafer EMC5754 and the ground GND is Resistor R611 and resistor R633 in parallel (1〇κ ohms in parallel 2 5] <: ohms are 2Κ ohms) 'At this time, the charging current will be determined by the parallel resistance value, and the chip emc5 is 4, the material PRQG will be smaller. The charging current will be increased, so the charging current can be increased to speed up the charging saturation. Through the above charging system, it is possible to use the application identification and charging current adjustment effect achieved by using a single-wheeled person charging chip (e.g., wafer EMC5754) which is cheaper than a dual input charging chip. Take _L sword I as a noisy, towel is not a close. Any equivalent modifications or alterations made without departing from the invention may be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS The 1st is a block diagram of the general-purpose serial bus (USB) charging system of the present invention; and the 2nd is the general-purpose serial bus (10) of the present invention.) The implementation circuit of the charging system 201019086 [Main component symbol description] 1 : Charging module; 2: Charging module setting terminal; 3: First impedance; 4: Second impedance; 5: Switching component; 6: USB 埠; 7: USB 埠 recognition pin; And ❿ 8: Charging circuit.