201038041 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種便攜式電子裝置、充電系統及充電方 法。 【先前技術】 隨著科學技術之發展和人們生活水準之提高，手機、 個人數位助理（PDA)等便攜式電子裝置之使用越來越普 〇 遍。例如手機已成為商務人士，尤其經常出差或外出工作 之人士必備之隨身攜帶之重要之通訊和交流工具。如今之 手機除了具有通訊、視頻播放、音樂播放、相機之功能外， 還可當作存儲裝置與投影儀連接，將手機中之資料投影出 來，便於複數人一起觀看手機中之資料。 惟，手機、PDA等便攜式電子裝置具有一定之待機時 間。當便攜式電子裝置與投影儀進行長時間資料傳輸時， ^ 便攜式電子裝置之電池將於一定時間内耗盡電而終止連 〇 接。對便攜式電子裝置之電池進行充電後才能繼續進行資 料傳輸，將延長操作時間。 【發明内容】 鑒於上述狀況，有必要提供一種可同時充電及傳輸資 料之便攜式電子裝置。 同時，本發明還提供一種適用於上述便攜式電子裝置 之充電系統。 4 201038041 另，本發明還提供一種上述充電系統之充電方法。 一種便攜式電子裝置，其包括第一處理控制單元、電 池、充電單元、充電控制單元、開關單元及第一外接端口。 該第一處理控制單元用於接收和發送控制訊號。該電池用 於給第一處理控制單元供電。該充電單元用於給該電池充 電。該充電控制單元包括充電程式，其與該第一處理控制 單元電連接，用於控制該電池之充電模式。該開關單元與 該第一處理控制單元及充電單元連接，用於控制該充電單 〇 元之連接狀態。該第一外接端口與該第一處理控制單元及 該開關單元連接，用於傳輸控制訊號、資料訊號及電源訊 號。 一種充電系統，其包括設於便攜式電子裝置内之第一 處理控制單元、電池、充電單元、充電控制單元、開關單 元、第一外接端口及設於外接電子裝置内之第二處理控制 單元、供電單元、第二外接端口。該第一處理控制單元及 ^ 第二處理控制單元用於接收和發送控制訊號。該電池用於 給第一處理控制單元供電。該充電單元用於給該電池充 電。該供電單元用於給第二處理控制單元供電。該充電控 制單元包括充電程式，其與該第一處理控制單元電連接， 用於控制該電池之充電模式。該開關單元與該第一處理控 制單元及充電單元連接，用於控制該充電單元之連接狀 態。該第一外接端口與該第一處理控制單元及該開關單元 連接，用於傳輸控制訊號、資料訊號及電源訊號。該第二 外接端口與該第二處理控制單元及該供電單元連接，用於 5 201038041 傳輸控制訊號、資料訊號及電源訊號。 第 一種上述充電系統之充電方法，其包括如下步驟： 將便攜式電子裝置之第一外接端口與外接電子裝置之 外接端口電連接起來，且開啟外接電子裝置； 啟動便攜式電子裝置之充電控制單元之充電程式； •選擇充電模式，充電㈣單元提供僅充電模式、僅傳 輸資料模式、同時充電及傳輸資料模式； ο 根據選擇之充電模式開啟對應之功能： 右選擇僅充電模式，則由該充電控制單元 單元，該第一處理控制單元控制開關單 傳送充電控制訊號給外接電子裝置之第 ’該第二處理控制單元控制供電單元開啟 二僅=:’:第由：電控制單元傳送控 Ο 控制訊號給外接電子 2第二處_制單元開啟傳輸資料功能； 元傳送控制⑽仏笛一南抖輪式’則由該充電控制單 兀開啟傳輸資料功能且控制 _ 匕制早 -處理控制單元傳#Ρ開關早凡開啟充電功能，該第 控制單元，該第二處理 *電子裝置之第一處理 供電單元開啟供電功能早兀開啟傳輸資料功能且控制 又’一種上述充電系統之充電方法，其包括如下步驟： 6 201038041 將便攜式電子裝£之冑1接端 外接端口電連接起來，且開啟外接:置之弟二 電子裝置之充電控制單元啟動便搞式 控制訊號给第一處理控制單元，該;二=:，傳送 且控制開關單元開啟充電功能，該第-處理 - 傳34控㈣舰外接電子裝置之第二處理控 兀，忒第二處理控制單元開 ❹ 元開啟供電功能。 啟傳輸貧枓功能且控制供電單 "亡電子裝置之充電控制單元發送控制訊號 單元:使第-處理控制單元可同時開啟傳201038041 VI. Description of the Invention: [Technical Field] The present invention relates to a portable electronic device, a charging system, and a charging method. [Prior Art] With the development of science and technology and the improvement of people's living standards, the use of portable electronic devices such as mobile phones and personal digital assistants (PDAs) has become more and more popular. For example, mobile phones have become an important communication and communication tool for business people, especially those who often travel or work outside the home. In addition to the functions of communication, video playback, music playback, and camera, today's mobile phones can also be connected to the projector as a storage device to project the data in the mobile phone, so that multiple people can watch the data in the mobile phone together. However, portable electronic devices such as mobile phones and PDAs have a certain standby time. When the portable electronic device and the projector perform long-term data transmission, the battery of the portable electronic device will be depleted for a certain period of time to terminate the connection. Charging the battery of the portable electronic device can continue the data transfer, which will extend the operation time. SUMMARY OF THE INVENTION In view of the above circumstances, it is necessary to provide a portable electronic device that can simultaneously charge and transmit data. At the same time, the present invention also provides a charging system suitable for the above portable electronic device. 4 201038041 In addition, the present invention also provides a charging method of the above charging system. A portable electronic device includes a first processing control unit, a battery, a charging unit, a charging control unit, a switching unit, and a first external port. The first processing control unit is configured to receive and transmit a control signal. The battery is used to power the first process control unit. The charging unit is used to charge the battery. The charging control unit includes a charging program electrically coupled to the first processing control unit for controlling a charging mode of the battery. The switch unit is connected to the first processing control unit and the charging unit for controlling the connection state of the charging unit. The first external port is connected to the first processing control unit and the switch unit for transmitting control signals, data signals, and power signals. A charging system includes a first processing control unit, a battery, a charging unit, a charging control unit, a switch unit, a first external port, and a second processing control unit disposed in the external electronic device, and is provided in the portable electronic device. Unit, second external port. The first processing control unit and the second processing control unit are configured to receive and transmit control signals. The battery is used to power the first process control unit. The charging unit is used to charge the battery. The power supply unit is for supplying power to the second processing control unit. The charging control unit includes a charging program electrically coupled to the first processing control unit for controlling a charging mode of the battery. The switch unit is connected to the first processing control unit and the charging unit for controlling the connection state of the charging unit. The first external port is connected to the first processing control unit and the switch unit for transmitting control signals, data signals, and power signals. The second external port is connected to the second processing control unit and the power supply unit, and is used for transmitting control signals, data signals, and power signals. The charging method of the first charging system includes the steps of: electrically connecting a first external port of the portable electronic device to an external port of the external electronic device, and turning on the external electronic device; and starting the charging control unit of the portable electronic device Charging program; • Select charging mode, charging (4) unit provides charging only mode, data only mode, simultaneous charging and transmission data mode; ο according to the selected charging mode to enable the corresponding function: Right select only charging mode, then the charging control a unit unit, the first processing control unit controls the switch to transmit the charging control signal to the external electronic device. The second processing control unit controls the power supply unit to turn on only two:: ': the first: the electric control unit transmits the control signal The transmission data function is turned on for the second electronic unit of the external electronic unit 2; the meta transmission control (10) the whistle and the south shaking wheel type is turned on by the charging control unit and the control data is transmitted and controlled _ 匕 早 - - processing control unit transmission # Ρ switch to open the charging function, the first control unit, the second processing * The first processing power supply unit of the electronic device turns on the power supply function and turns on the transmission data function and controls the charging method of the above charging system, which includes the following steps: 6 201038041 The portable electronic device is installed on the external port of the first terminal. Connected, and open the external connection: the charging control unit of the second electronic device starts to engage the control signal to the first processing control unit, the second =:, transmits and controls the switching unit to turn on the charging function, the first processing - The 34th control (4) second processing control of the external electronic device of the ship, and the second processing control unit open the power supply function. The transmission of the lean function and the control of the power supply unit " the charging control unit of the electronic device transmits the control signal unit: enables the first processing control unit to simultaneously open the transmission
時傳輸資料功能及充電功能。裝置可實現同 【實施方式J Ο 說明 子裝=本發明之便攜式電 啼明。 九電系統之充電方法作進一步詳細 本發明涉及之便攜式電子奘番叮& $ α 接電子裝置可為投影儀、^可為手機、PDA等，外 °己垔電腦等，本實施方式以手 機及杈影儀為例進行說明。 ^閱圖1’本發明實施方式之便攜式電子裝置雇 與外接電子震置測電連接，外接電子裝置測將便攜式 電子裝置100中之資訊投影出來且同時實現對便攜式電子 裝置100之電池充電。 7 201038041 請參閱圖2,本發明實施方式之充電系統包括便攜式 電子裝置100及外接電子裝置2〇〇。 .便攜式電子«置100包括充電控制單元1〇1、第一處 理控制單it 102、存儲單元1()3、第—外接端口綱、通用 可編程輸入/輸出介面1〇5(即GPIO介面，General Purpose Input Output)、開關單元1〇6、充電單元1〇7、電池1〇8及 外接電源介面109。充電控制單元1〇1與第一處理控制單 元j02連接，其用於控制電池108之充電模式。該充電控 制單元101包括充電程式。第一處理控制單元1〇2與充電 控制單元101、存儲單元103、第一外接端口 1〇4及通用可 編程輸入/輸出介面105連接，其用於接受和發送控制訊 號。存儲單元103用於存儲各種資料資訊。第一外接端口 104用於對外傳輸控制訊號、資料訊號及電源訊號，其中 控制訊號通過I2C總線(inter_integrated Circuit，即兩線式 串行總線)傳輸。第一外接端口 1〇4可為VGA介面(vide〇 Q GraPhics Array，即視頻圖像陣列介面）、DVI介面（Digital Visual Interface，即數位元視頻介面）、HDMI介面（mghTime transfer data function and charging function. The device can be implemented as the same. [Embodiment J Ο Description Sub-assembly = portable electric device of the present invention. The charging method of the nine-electric system is further detailed. The portable electronic 奘番叮& $α electronic device can be a projector, a mobile phone, a PDA, etc., and the like And the photographic device is taken as an example for explanation. 1A The portable electronic device of the embodiment of the present invention employs an external electronic shock metering connection, and the external electronic device measures the information in the portable electronic device 100 and simultaneously charges the battery of the portable electronic device 100. 7 201038041 Referring to FIG. 2, a charging system according to an embodiment of the present invention includes a portable electronic device 100 and an external electronic device. The portable electronic device includes a charging control unit 101, a first processing control unit it 102, a storage unit 1 (3), a first external port, a general programmable input/output interface 1〇5 (ie, a GPIO interface, General Purpose Input Output), switch unit 1〇6, charging unit 1〇7, battery 1〇8 and external power supply interface 109. The charge control unit 101 is coupled to a first process control unit j02 for controlling the charge mode of the battery 108. The charge control unit 101 includes a charging program. The first processing control unit 112 is coupled to the charging control unit 101, the storage unit 103, the first external port 1〇4, and the universal programmable input/output interface 105 for accepting and transmitting control signals. The storage unit 103 is configured to store various material information. The first external port 104 is configured to transmit control signals, data signals, and power signals externally, wherein the control signals are transmitted through an I2C bus (inter-integrated circuit). The first external port 1〇4 can be a VGA interface (vide〇 Q GraPhics Array), a DVI interface (Digital Visual Interface), and an HDMI interface (mgh).
Definition Multimedia ’即高清晰度多媒體介面）等。具體於 本實施方式中，第一外接端口 1〇4為VGA介面。通用可編 程輸入/輸出介面105為第一處理控制單元1〇2提供額外之 控制和監控功能。開關單元106與通用可編程輸入/輸出介 面105、充電單元107及外接電源介面1〇9連接，其用於 控制充電單元107之連接狀態。電池1〇8與充電單元1〇7 連接’其用於給第一處理控制單元1〇2供電。充電單元1〇7 8 201038041 用於給電、池⑽充電，其包括充電電路。外接電源介面_ 用於給便攜式電子裝置⑽提供額外之絲介面，以便於 便攜式電子裝置⑽沒有與外接電子裝置雇 用其他電源充電。 ^ ❹ ❹ 外接電子裂置200包括第二處理控制單元2()1、供電 單兀202,、第二外接端口 2〇3、解碼簡裝置綱及投影單 兀205。第二處理控制單元2〇1與供電單元搬、第二外接 端口 203、解碼調解裝置2〇4及投影單元2〇5連接，其用 於^收和發送控制訊號。供電單元搬用於給第二處理控 制單το 20)供電。第二外接端口 2〇3用於與便攜式電子裝 置⑽之第-外接端口 104電連接，傳輸控制訊號、資料 訊號’其㈣訊號通過此總線(兩線式串行 …氣)傳輸。第二外接端口 203可為VGA介面、DVI介面、 HDMI介面等。具體於本實施方式中，第 與第一外垃钟 ^ 203 ，、弟外接_綱相同，為VGA介面 204盥第-]月鮮I置 接口 203傳輸之資料訊號進行解褐。投影單元 用於解瑪調解裝置204解碼後之資訊進行投影。 一=參閱圖3,本發明實施方式中之第一外接端口 ι〇4 之不思圖。第—外接端口 104之管腳定義如表X所示。 ^ 1第一外接端口 104之管腳！^Definition Multimedia ’, ie high-definition multimedia interface). Specifically, in the embodiment, the first external port 1〇4 is a VGA interface. The universal programmable input/output interface 105 provides additional control and monitoring functions for the first processing control unit 〇2. The switch unit 106 is connected to the general-purpose programmable input/output interface 105, the charging unit 107, and the external power supply interface 1〇9 for controlling the connection state of the charging unit 107. The battery 1〇8 is connected to the charging unit 1〇7 for supplying power to the first processing control unit 1〇2. The charging unit 1〇7 8 201038041 is used to charge the battery, the battery (10), which includes a charging circuit. The external power interface _ is used to provide an additional silk interface to the portable electronic device (10) so that the portable electronic device (10) is not charged with an external electronic device for other power sources. ^ ❹ ❹ The external electronic split 200 includes a second processing control unit 2 (1), a power supply unit 202, a second external port 2〇3, a decoding device, and a projection unit 205. The second processing control unit 2〇1 is connected to the power supply unit, the second external port 203, the decoding and mediation device 2〇4, and the projection unit 2〇5, and is used for receiving and transmitting control signals. The power supply unit is used to supply power to the second process control unit το 20). The second external port 2〇3 is for electrically connecting to the first-external port 104 of the portable electronic device (10), and transmits the control signal and the data signal 'the (four) signal is transmitted through the bus (two-wire serial gas). The second external port 203 can be a VGA interface, a DVI interface, an HDMI interface, or the like. Specifically, in the present embodiment, the data signal transmitted by the VGA interface 204 盥 ] ] - 置 接口 接口 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The projection unit is used for projection of the decoded information by the decoding device. to FIG. 3, the first external port ι〇4 in the embodiment of the present invention is not considered. The pin definition of the first-external port 104 is as shown in Table X. ^ 1 first external port 104 pin! ^
红基色信号 /第一外接端口 2〇3及投影單元2〇5連接，其用於對 9 201038041 ❹ 2 Green video 绿基色信号 3 Blue video 蓝基色信号 4 Not connected 空 5 Ground 地 6 Red return 红色地 7 Green return 绿色地 8 Blue return 蓝色地 9 +5 V (DDC) DDC 5 V信号 10 Sync Ground 同步数字地 11 Not connected 空 12 I2C data I2C数据线 13 Horizontal sync 行同步 14 Vertical sync 场同步 15 I2C clock I2C时钟线 請參閱圖4,本發明充電方法之第一實施方式包括如 下步驟： 步驟一，將便攜式電子裝置100之第一外接端口 104 與外接電子裝置200之第二外接端口 203電連接起來，且 開啟外接電子裝置200 ; 步驟二，啟動便攜式電子裝置100之充電控制單元101 之充電程式。 201038041 步驟三，選擇充電模式，充電控制單元101提供僅充 ^ 電模式、僅傳輸資料模式、同時充電及傳輸資料模式。 步驟四，根據選擇之充電模式開啟對應之功能： 若選擇僅充電模式，則由充電控制單元101傳送控制 訊號給第一處理控制單元102,該第一處理控制單元102 控制開關單元106開啟充電功能且傳送充電控制訊號給外 接電子裝置200之第二處理控制單元201，該第二處理控 制單元201控制供電單元202開啟供電功能； 〇 若選擇僅傳輸資料模式，則由充電控制單元101傳送 控制訊號給第一處理控制單元102，該第一處理控制單元 10 2開啟傳輸資料功能且傳送控制訊號給外接電子裝置 200之第二處理控制單元201，該第二處理控制單元201開 啟傳輸資料功能； 若選擇同時充電及傳輸資料模式，則由充電控制單元 101傳送控制訊號給第一處理控制單元102,該第一處理控 0 制單元102開啟傳輸資料功能且控制開關單元106開啟充 電功能，該第一處理控制單元102傳送控制訊號給外接電 子裝置200之第二處理控制單元201，該第二處理控制單 元201開啟傳輸資料功能且控制供電單元202開啟供電功 能。 請參閱圖5,本發明充電方法之第二實施方式包括如 下步驟： 步驟一，將便攜式電子裝置100之第一外接端口 104 與外接電子裝置200之第二外接端口 203電連接起來，且 11 201038041 開啟外接電子裝置200 ; 步驟二，啟動便攜式電子裝置100之充電控制單元 之充電程式。Red primary color signal / first external port 2〇3 and projection unit 2〇5 are connected, which is used for pair 9 201038041 ❹ 2 Green video Green primary color signal 3 Blue video Blue primary color signal 4 Not connected Empty 5 Ground Ground 6 Red return Red ground 7 Green return Green ground 8 Blue return Blue ground 9 +5 V (DDC) DDC 5 V signal 10 Sync Ground Synchronous digital ground 11 Not connected Empty 12 I2C data I2C data line 13 Horizontal sync Line sync 14 Vertical sync Field sync 15 I2C Referring to FIG. 4, the first embodiment of the charging method of the present invention includes the following steps: Step 1: electrically connect the first external port 104 of the portable electronic device 100 with the second external port 203 of the external electronic device 200. And turning on the external electronic device 200; Step 2, starting the charging program of the charging control unit 101 of the portable electronic device 100. 201038041 Step 3: Select the charging mode, and the charging control unit 101 provides only the charging mode, the data only mode, the simultaneous charging and the transmission data mode. Step 4: Turn on the corresponding function according to the selected charging mode: If the charging only mode is selected, the charging control unit 101 transmits a control signal to the first processing control unit 102, and the first processing control unit 102 controls the switching unit 106 to turn on the charging function. And transmitting a charging control signal to the second processing control unit 201 of the external electronic device 200, the second processing control unit 201 controls the power supply unit 202 to turn on the power supply function; 〇 if the data only transmission mode is selected, the control signal is transmitted by the charging control unit 101. To the first processing control unit 102, the first processing control unit 102 turns on the transmission data function and transmits the control signal to the second processing control unit 201 of the external electronic device 200, and the second processing control unit 201 turns on the transmission data function; Selecting the simultaneous charging and transmitting data mode, the charging control unit 101 transmits a control signal to the first processing control unit 102, the first processing control unit 102 turns on the transmission data function and controls the switching unit 106 to turn on the charging function, the first The processing control unit 102 transmits a control signal to the external electronic device. The second process 200 of the control unit 201, the second processing control unit 201 and turning on the transfer function of the control information supply unit 202 is turned on the power supply function. Referring to FIG. 5, the second embodiment of the charging method of the present invention includes the following steps: Step 1: electrically connect the first external port 104 of the portable electronic device 100 with the second external port 203 of the external electronic device 200, and 11 201038041 Turning on the external electronic device 200; Step 2, starting the charging program of the charging control unit of the portable electronic device 100.
步驟三，充電控制單元101傳送控制訊號給第—處理 控制單元102’該第一處理控制單元102開啟傳輪資料功 能且控制開關單元106開啟充電功能，該第—處理押制w 元101傳送控制訊號給外接電子裝置2〇〇之第二處^= 單元201，該第二處理控制單元201開啟傳輸資二功 控制供電單元202開啟供電功能。 ％ 上述之便搞式電子裝置100之充電控制單元發： 控制訊號給第一處理控制單元102,使第—處理控制^送 1〇2可同時開啟充電功能及傳輸資料功能，從而^便 電子裝置100可實現同時充電功能及傳輪資料功能。另式 充電控制單元1〇1可提供僅充電模式、僅傳輪資^模及 同時充電及傳輸資料模式，使得便攜式電子裝置、 多種充電功能。 具有 可以理解，便攜式電子|置觸不限於包括存儲單元 1〇3，僅需該便攜式電子裝置1〇〇能夠傳輸資料即可，= 如，便攜式電子裝置100之第一處理控制單元1〇2自身具 有存儲功能時，可省略存儲單元103。便攜式電子裝置100 不限於包括通用可編程輸入/輸出介面105，僅需該第一處 =控制單元1〇2能夠連接開關單元即可，例如當第一處理 技制單tl 1〇2具有足夠之1/()引腳時，可省略通用可編程 輪入/輸出介面105。另，外接電子裝置2〇〇不限於包括解 12 201038041 碼調解裝置綱及投影單元2G5，僅需該外接電子裝置綱 可供電給便攜式電子裝置⑽且可傳輸資料即可。 本發明確已符合發明專利之要件，遂依法 利申mx上所述者僅為本㈣讀佳實施方 =敲自不能以此限制本案之申請專利範圍。舉凡熟悉本宰 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。 Ο 【圖式簡單說明】 圖1為本發明實施方式之㈣式f子裝置與外接電子 裂置連接時之狀態示意圖。 之雷本發明實施方式之便攜式電子裝置之充電系統 冤路方塊圖。 意圖 圖3為圖2所示便攜式電子裝置之第一外接端 之示 Ο 圖4為本發明便搞式電子裳置充電方法之第一實施方 式之流程圖。 圖5為本發明便攜式電子裴 式之流程圖。 二實施方 100 電池 108 101 外接電源介面 109 102 外接電子裝置 200 【主要元件符號說明】 便攜式電子裝置 充電控制單元 第一處理控制單元 13 201038041 存儲單元 103 第二處理控制單元 201 第一外接端口 104 供電單元 202 通用可編程輸入/輸出 105 第二外接端口 203 介面 開關單元 106 解碼調解裝置 204 充電單元 107 投影單元 205Step 3, the charging control unit 101 transmits a control signal to the first processing control unit 102'. The first processing control unit 102 turns on the transmission data function and controls the switching unit 106 to turn on the charging function. The first processing and processing is performed. The signal is sent to the second location of the external electronic device 2= unit 201, and the second processing control unit 201 turns on the transmission power control power supply unit 202 to turn on the power supply function. % The above charging control unit of the electronic device 100 sends a control signal to the first processing control unit 102, so that the first processing control can send the charging function and the data transmission function simultaneously, thereby enabling the electronic device. 100 can realize simultaneous charging function and transfer data function. The alternative charging control unit 101 can provide a charging only mode, a transmission only mode, and a simultaneous charging and transmission data mode, enabling a portable electronic device and a plurality of charging functions. It can be understood that the portable electronic device is not limited to include the storage unit 1〇3, and only the portable electronic device 1〇〇 can transmit data, for example, the first processing control unit 1〇2 of the portable electronic device 100 itself. When there is a storage function, the storage unit 103 can be omitted. The portable electronic device 100 is not limited to include a universal programmable input/output interface 105, and only the first place=control unit 1〇2 can be connected to the switch unit, for example, when the first processing technology unit tl 1〇2 has sufficient When the 1/() pin is used, the general programmable wheel input/output interface 105 can be omitted. In addition, the external electronic device 2 is not limited to include the solution 12 201038041 code mediation device and the projection unit 2G5, and only the external electronic device can be supplied to the portable electronic device (10) and the data can be transmitted. The invention has indeed met the requirements of the invention patent, and the person described in the law is only the present (4) reading the implementation party = knocking can not limit the scope of the patent application in this case. Equivalent modifications or variations made by those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a state in which a sub-device of the formula (4) of the embodiment of the present invention is connected to an external electronic split. A charging circuit diagram of a portable electronic device according to an embodiment of the present invention. 3 is a first external terminal of the portable electronic device shown in FIG. 2. FIG. 4 is a flow chart of the first embodiment of the method for charging the electronic device. Figure 5 is a flow chart of the portable electronic device of the present invention. 2 Embodiment 100 Battery 108 101 External power supply interface 109 102 External electronic device 200 [Main component symbol description] Portable electronic device charging control unit First processing control unit 13 201038041 Storage unit 103 Second processing control unit 201 First external port 104 Power supply Unit 202 General Programmable Input/Output 105 Second External Port 203 Interface Switch Unit 106 Decoding Mediation Device 204 Charging Unit 107 Projection Unit 205