1362806 ——： 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種充電裝置及充電方法，尤其涉及一種刊 用USB接口充電之充電裝置及充電方法。 [先前技術] [0002] 當今，USB (Universal Serial BUS :通用串列匯旋排 )接口已廣泛應用於手機、數碼相機等各種電子設備中， 為方便使用，這些電子設備一般都會設計用1^8接口通過 電腦為其充電，並配有專用對應該接口之充電器’這些 電子設備可以通過USB接口直接連接至電腦上通過電賤進 行充電。根據USB協定規範，USB接口可以提供100毫安 培至500毫安培之電流供其充電，一般電子設備在充電時 ，在電子設備未與電腦主機進行通訊時，電腦僅提供最 高100毫安培之電流給電子設備充電，這樣，充電速夜要 慢很多。 [0003] 現在很多電子設備在開機狀態下連接電腦進行充電’此 時，電子設備可以通過USB協定與電腦主機進行通訊，取 得最大500毫安培之充電電流以加快充電速度，即採用快 速充電模式。然、而，電子設備在開機狀態下進行充電， 其本身也要消耗-定之電池電量，導致其充電充不滿之 情形，不但影響電池壽命，也使得電池之續航能力不足 ’影響電子設備之使用時間。 【發明内容】 [0004] 有鑒於此，有必要提供一鍤可以捭古A + 七 植1以提T3J充電效率又能確保 電量充滿之USB充電裝置. 第4頁/共13頁 09711221^單编號 A0101 1013052348-0 1362806 101年.02月14日修正替換頁 [0005] 還有必要提供一種利用該USB充電裝置進行充電之充電方 法0 [0006] 一種USB充電裝置，其包括一充電電路晶片，一與所述充 電電路晶片連接之電池接口單元，一連接於所述電池接 口單元之電壓偵測器以及一控制晶片，該控制晶片與所 述電壓偵測器及所述充電電路晶片相連接。 [0007] 所述充電電路晶片内設有具不同充電模式之充電電路， 用於根據不同充電指令選擇不同充電電路，以切換充電 模式。 [0008] 所述電池接口單元正極端連接充電電路晶片，負極端接 地。 [0009] 所述電壓偵測器用於偵測電池接口單元内之電池電壓， 並將電池電壓訊息回饋給所述控制晶片。 [0010] 所述控制晶片用於根據所述電壓偵測器之電池電壓訊息 發出相應充電指令，以切換不同之充電模式，同時配合 相應充電模式對電子設備系統發出開、關機之指令。 [0011] 一種應用上述USB充電裝置之USB充電方法，其包括以下 步驟： [0012] 偵測所述電池接口單元内之電池電壓，並將電池電壓訊 息回饋給所述控制晶片； [0013] 判斷電池電壓是否高於電子設備之開機電壓，如果是， 則電子設備開機，如果否，則電子設備保持關機狀態以 正常充電模式進行充電直至電池電壓達到電子設備之開 1013052348-0 第5頁/共13頁 1362806 __ 101年02月14日核正替換頁 機電壓； [0014] 電子設備開機後，所述電子設備通過USB接口與電腦主機 通訊，選擇快速充電模式為電池充電； [0015] 判斷電池電壓是否達到電池之最高充電電壓，如果是， 則電子設備關機，如果否則繼續快速充電模式； [0016] 電子設備關機後，切換充電模式為恒壓充電模式，直至 電池電量充滿，結束充電。 [0017] 相較先前技術，本發明之USB充電裝置可以控制電子設備 之開關機，通過與電腦主機之通訊，切換不同充電模式 ，既保證了充電效率又能確保電池電量充滿，有利於提 高充電電池之壽命及續航能力。 【實施方式】 [0018] 下面將結合附圖對本發明作一具體介紹。 [0019] 請參閱圖1，所示為本發明USB充電裝置之示意圖，所述 USB充電裝置包括一充電電路晶片10, 一與所述充電電路 晶片10連接之電池接口單元20，一連接於電池接口單元 20之電壓偵測器30以及一控制晶片40，所述控制晶片40 與所述電壓偵測器3 0及所述充電電路晶片1 0相連接。 [0020] 所述充電電路晶片10内設有具不同充電模式之充電電路 ，其可以根據不同充電指令選擇不同充電電路。 [0021] 本實施方式中，所述之充電模式包括正常充電模式、快 速充電模式以及恒壓充電模式。所述正常充電模式及快 速充電模式均為恒流充電，其中正常充電模式之充電電 0971122#單编號删1 第6頁/共13頁 1013052348-0 101年.02月14日梭正替換頁 1362806 流為100毫安培，快速充電模式之充電電流為500毫安培 :所述恒壓充電模式用於當電池電壓達到最高充電電壓 後繼續對電池進行充電，其充電電流隨著電池容量之提 高而降低直至電池電量充滿、結束充電。 [0022] 當然，所述快速充電模式之充電電流也可以因據具體設 計要求而不同，而不局限於本實施方式中之500毫安培。 [0023] 所述快速充電模式需在電子設備開機，並與電腦主機通 訊後進行。 [0024] 所述電池接口單元20正極端連接充電電路晶片10，負極 端接地，充電時，將充電電池正、負極分別對應所述電 池接口單元20之正、負極端置於所述電池接口單元20内 〇 [0025] 所述電壓偵測器30用於偵測電池接口單元20内之電池電 壓，並將電池電壓訊息回饋給所述控制晶片40。 [0026] 所述控制晶片40用於根據所述電壓偵測器30之電池電壓 訊息發出相應充電指令，以切換不同充電模式，同時配 合相應充電模式對電子設備系統發出開、關機指令，其 中，正常充電模式和恒壓充電模式在電子設備關機時進 行，快速充電模式在電子設備開機時進行。 [0027] .充電時，先將所述充電電路晶片10通過USB接口與電腦主 機建立連接。 [0028] 請參閱圖2，所示為本發明USB充電方法之流程圖，其包 括如下步驟： 097112211^^ A〇101 第7頁/共13頁 1013052348-0 1362806 101年.02月14日梭正替換頁 [0029] S501，偵測所述電池接口單元20内電池電壓，並將電池 電壓訊息回饋給所述控制晶片4 0 ; [0030] S502，判斷電池電壓是否高於電子設備之開機電壓，如 果是，則電子設備開機，如果否，則電子設備保持關機 狀態以正常充電模式進行充電直至電池電壓達到電子設 備之開機電壓； [0031] S503，電子設備開機後，所述電子設備通過USB接口與電 腦主機通訊，選擇快速充電模式為電池充電； [0032] S504，判斷電池電壓是否達到電池之最高充電電壓，如 果是，則電子設備關機，如果否則繼續快速充電模式； [0033] S505，電子設備關機後，切換充電模式為恒壓充電模式 ，直至電池電量充滿； [0034] S 5 0 6，結束充電。 [0035] 所述之USB充電裝置及充電方法適用於數碼相機、數碼攝 像機、手機、PDA、MP3、MP4等具有USB接口之電子設備 中。 [0036] 相較先前技術，本發明之USB充電裝置可以控制電子裝置 之開關機，通過與電腦主機之通訊，切換不同充電模式 ，既保證了充電效率又能確保電池電量充滿，有利於提 高充電電池之壽命及續航能力。 [0037] 綜上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所述者僅為本發明之較佳實施方式，本 發明之範圍並不以上述實施方式為限，舉凡熟悉本案技 097112211^ 單编號 A〇101 第8頁/共13頁 1013052348-0 1362806 101年.02月14日梭正替換百 藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0038] 圖1係本發明USB充電裝置示意圖； [0039] 圖2係本發明USB充電方法之流程圖。 【主要元件符號說明】 [0040] 充電電路晶片：1 0 [0041] 電池接口單元：20 [0042] 電壓偵測器：3 0 [0043] 控制晶片：40 097112211^^ A〇101 第9頁/共13頁 1013052348-01362806 ——: VI. Description of the Invention: [Technical Field] The present invention relates to a charging device and a charging method, and more particularly to a charging device and a charging method using a USB interface for charging. [Prior Art] [0002] Today, the USB (Universal Serial BUS) interface has been widely used in various electronic devices such as mobile phones and digital cameras. For the convenience of use, these electronic devices are generally designed to use 1^ The 8 interface is charged by the computer and is equipped with a dedicated charger for the interface. These electronic devices can be directly connected to the computer via the USB interface for charging via the battery. According to the USB protocol specification, the USB interface can supply 100 mA to 500 mA for charging. When the electronic device is charging, when the electronic device is not communicating with the host computer, the computer only provides a current of up to 100 milliamps. The electronic device is charged, so that the charging night is much slower. [0003] Many electronic devices are now connected to a computer for charging when turned on. In this case, the electronic device can communicate with the host computer via the USB protocol to obtain a charging current of up to 500 milliamps to speed up the charging, that is, to adopt a fast charging mode. However, when the electronic device is charged in the power-on state, it itself consumes a certain amount of battery power, which causes its charging to be unsatisfactory, which not only affects the battery life, but also makes the battery's battery life insufficient. . SUMMARY OF THE INVENTION [0004] In view of this, it is necessary to provide a USB charging device that can be used to improve the charging efficiency of T3J and ensure the fullness of the battery. Page 4 of 13 09711221^ No. A0101 1013052348-0 1362806 101. February 14th Amendment Replacement Page [0005] It is also necessary to provide a charging method using the USB charging device for charging. [0006] A USB charging device including a charging circuit chip, A battery interface unit connected to the charging circuit chip, a voltage detector connected to the battery interface unit, and a control chip connected to the voltage detector and the charging circuit chip. [0007] The charging circuit is provided with charging circuits with different charging modes for selecting different charging circuits according to different charging commands to switch the charging mode. [0008] The positive terminal of the battery interface unit is connected to the charging circuit chip, and the negative terminal is grounded. [0009] The voltage detector is configured to detect a battery voltage in a battery interface unit, and feed back a battery voltage message to the control chip. [0010] The control chip is configured to issue a corresponding charging command according to the battery voltage message of the voltage detector to switch different charging modes, and simultaneously issue an instruction to turn on and off the electronic device system according to the corresponding charging mode. [0011] A USB charging method using the USB charging device described above, comprising the steps of: detecting a battery voltage in the battery interface unit, and feeding back a battery voltage message to the control chip; [0013] Whether the battery voltage is higher than the power-on voltage of the electronic device, and if so, the electronic device is powered on, if not, the electronic device remains powered off and charged in the normal charging mode until the battery voltage reaches the opening of the electronic device 1013052348-0 13 pages 1362806 __ February 14th, 101th, the replacement of the pager voltage; [0014] After the electronic device is turned on, the electronic device communicates with the host computer through the USB interface, and selects the fast charging mode to charge the battery; [0015] Whether the voltage reaches the maximum charging voltage of the battery, and if so, the electronic device is turned off, if otherwise, the fast charging mode is continued; [0016] After the electronic device is turned off, the charging mode is switched to the constant voltage charging mode until the battery is fully charged, and the charging is ended. [0017] Compared with the prior art, the USB charging device of the present invention can control the power on/off switch of the electronic device, and can switch between different charging modes by communicating with the computer host, thereby ensuring charging efficiency and ensuring full battery power, which is beneficial to improve charging. Battery life and endurance. [Embodiment] The present invention will be specifically described below with reference to the accompanying drawings. 1 is a schematic diagram of a USB charging device according to the present invention. The USB charging device includes a charging circuit chip 10, a battery interface unit 20 connected to the charging circuit chip 10, and a battery connected to the battery. The voltage detector 30 of the interface unit 20 and a control chip 40 are connected to the voltage detector 30 and the charging circuit chip 10. [0020] The charging circuit wafer 10 is provided with charging circuits with different charging modes, which can select different charging circuits according to different charging instructions. [0021] In the embodiment, the charging mode includes a normal charging mode, a fast charging mode, and a constant voltage charging mode. The normal charging mode and the fast charging mode are both constant current charging, wherein the charging mode of the normal charging mode is 0971122# single number deletion 1 page 6 / total 13 page 1013052348-0 101 year. February 14th shuttle replacement page 1362806 The flow is 100 mA, and the charging current in the fast charging mode is 500 mA. The constant voltage charging mode is used to continue charging the battery when the battery voltage reaches the maximum charging voltage, and the charging current increases with the battery capacity. Lower until the battery is fully charged and ends charging. [0022] Of course, the charging current of the fast charging mode may also differ depending on the specific design requirements, and is not limited to 500 milliamperes in the present embodiment. [0023] The fast charging mode needs to be performed after the electronic device is powered on and communicated with the computer host. [0024] The positive terminal of the battery interface unit 20 is connected to the charging circuit chip 10, and the negative terminal is grounded. When charging, the positive and negative terminals of the rechargeable battery are respectively placed corresponding to the positive and negative terminals of the battery interface unit 20 to the battery interface unit. 20 〇 [0025] The voltage detector 30 is configured to detect a battery voltage in the battery interface unit 20 and feed back a battery voltage message to the control chip 40. The control chip 40 is configured to issue a corresponding charging command according to the battery voltage message of the voltage detector 30 to switch different charging modes, and simultaneously issue an opening and closing command to the electronic device system according to the corresponding charging mode, wherein The normal charging mode and the constant voltage charging mode are performed when the electronic device is turned off, and the fast charging mode is performed when the electronic device is turned on. [0027] When charging, the charging circuit chip 10 is first connected to the computer host through the USB interface. 2 is a flow chart of a USB charging method according to the present invention, which includes the following steps: 097112211^^ A〇101 Page 7/13 pages 1013052348-0 1362806 101. February 14th shuttle Positive replacement page [0029] S501, detecting the battery voltage in the battery interface unit 20, and feeding back the battery voltage information to the control chip 40; [0030] S502, determining whether the battery voltage is higher than the startup voltage of the electronic device If yes, the electronic device is powered on, if not, the electronic device remains powered off and charged in the normal charging mode until the battery voltage reaches the power-on voltage of the electronic device; [0031] S503, after the electronic device is powered on, the electronic device passes through the USB The interface communicates with the host computer, and selects the fast charging mode to charge the battery; [0032] S504, determines whether the battery voltage reaches the highest charging voltage of the battery, and if so, the electronic device is turned off, if otherwise, the fast charging mode is continued; [0033] S505, After the electronic device is turned off, the charging mode is switched to the constant voltage charging mode until the battery is fully charged; [0034] S 5 0 6, the charging is ended. [0035] The USB charging device and the charging method are suitable for use in an electronic device having a USB interface such as a digital camera, a digital camera, a mobile phone, a PDA, an MP3, or an MP4. Compared with the prior art, the USB charging device of the present invention can control the switching device of the electronic device, and switch between different charging modes by communicating with the computer host, thereby ensuring charging efficiency and ensuring full battery power, which is beneficial to improve charging. Battery life and endurance. [0037] In summary, the present invention complies with the requirements of the invention patent, and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, and the familiar art is 097112211^ single number A 〇 101 page 8 / 13 pages 1013052348- 0 1362806 101. On the 14th of February, the equivalent modification or change made by the person who is in the spirit of the present invention should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0038] FIG. 1 is a schematic diagram of a USB charging device of the present invention; [0039] FIG. 2 is a flow chart of a USB charging method of the present invention. [Main component symbol description] [0040] Charging circuit chip: 1 0 [0041] Battery interface unit: 20 [0042] Voltage detector: 3 0 [0043] Control chip: 40 097112211^^ A〇101 Page 9/ Total 13 pages 1013052348-0