200944825 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種電子產品充電功能測試裝置，尤其涉及 一種具有過電壓保護功能之電子產品充電功能測試裝置。 【先前技術】 隨著科技日新月異之發展，越來越多之電子產品出現在 人們之曰常生活中，如行動電話、PDA ( Pers〇nal Digital200944825 IX. Description of the Invention: The present invention relates to an electronic product charging function testing device, and more particularly to an electronic product charging function testing device with an overvoltage protection function. [Prior Art] With the rapid development of technology, more and more electronic products are appearing in people's daily lives, such as mobile phones, PDAs (Pers〇nal Digital
Assistant，個人數位助理）、筆記本電腦等已經成為人們生活 中重要之通訊及娛樂工具。目前電子產品大多具備充電功 能，電子產品出廠前需要經過充電測試，檢測產品充電功能 是否正常。 然，習知之電子產品充電功能測試裝置通常不具備過電 壓保護功能，電子產品容易在測試過程中受損或毀壞。 【發明内容】 有鑒於此，有必要提供一種具有過電壓保護功能之電子 ❹產品充電功能測試裝置。 一種電子產品充電功能職裝置，其包括—第―開關切 換裝置、-第二開關切換裝置及—復位晶片，該第一開關切 換裝置用於輸I充電f壓及發出提示音；該第二開關切換 装置與第一開關切換裝置電連接以獲取充電電壓，該第二開 關切換裝置與電子產品電連接以對電子產品充電及獲取電 子產品之電池端口之電壓值；該復位晶片之輸入端與第二開 關切換裝置電性連接以獲取電子產品之電池端口之 值，該復位W之復位端與第1關切換裝置電性連接，並 7 200944825 根據獲取之電子產品之電池端口之電壓值，判斷是否產生一 復位訊號給第一開關切換裝置，以觸發第一開關切換裝置切 * 換充電電壓及發出提示音。 相較於習知技術’所述電子產品充電功能測試裝置，可 以測試電子產品之充電功能是否正常，並在電子產品之電池 端口電壓值達到過電壓保護值時，通過復位晶片產生一復位 矾號觸發第一開關切換裝置切換充電電壓及發出提示音，實 ❹現測試過程中對電子產品之過電壓保護。 【實施方式】 本發明公開一種電子產品充電功能測試裝置，其可用於 對移動電話、PDA、㈣本電腦等具有充電端口和電池端口 之電子產品進行充電功能測試。 實施方式用於測試一電子產品 電子產品充電功能測試裝置] "月參閱圖1，本發明電子產品充電功能測試裝置之較佳Assistants, personal digital assistants, laptops, etc. have become important communication and entertainment tools in people's lives. At present, most of the electronic products have charging functions, and the electronic products need to undergo a charging test before leaving the factory to check whether the charging function of the product is normal. However, the conventional electronic product charging function test device usually does not have overvoltage protection function, and the electronic product is easily damaged or destroyed during the test. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide an electronic ❹ product charging function testing device with overvoltage protection function. An electronic product charging function device comprising: a first switch switching device, a second switch switching device and a reset chip, wherein the first switch switching device is configured to receive a charging voltage and emit a prompt tone; the second switch The switching device is electrically connected to the first switching device to obtain a charging voltage, and the second switching device is electrically connected to the electronic product to charge the electronic product and obtain a voltage value of the battery port of the electronic product; the input end of the reset chip and the first The second switch switching device is electrically connected to obtain the value of the battery port of the electronic product, and the reset end of the reset W is electrically connected to the first switch device, and 7 200944825 determines whether the voltage value of the battery port of the obtained electronic product is based on A reset signal is generated to the first switch switching device to trigger the first switch switching device to switch the charging voltage and emit a prompt tone. Compared with the electronic product charging function testing device of the prior art, it is possible to test whether the charging function of the electronic product is normal, and generate a reset nickname by resetting the wafer when the battery port voltage value of the electronic product reaches the overvoltage protection value. The first switching device is triggered to switch the charging voltage and emit a prompt tone, thereby realizing the overvoltage protection of the electronic product during the test. [Embodiment] The present invention discloses an electronic product charging function testing device, which can be used for performing a charging function test on an electronic product having a charging port and a battery port, such as a mobile phone, a PDA, and (four) the computer. Embodiment for testing an electronic product electronic product charging function testing device] " month Referring to Figure 1, the electronic product charging function testing device of the present invention is preferred
10、一第二開關切換裝置20、 片40和一控制單元50。該第一 一充放電電路30、一 開關切換襞置1〇與第二開關10. A second switching device 20, a chip 40 and a control unit 50. The first charging and discharging circuit 30, a switching device, and a second switch
，60之充電功能是否正常。該 100包括一第一開關切換裝置 200944825 請參閱圖2,該第一開關切換裝置10用於切換電子產品 '60之充電電壓以及在測試成功時發出提示音。該第一開關切 • 換裝置10包括一第一繼電器11、一第一電阻R1、一第二電 阻R2、一第一三極管12、一第三電阻R3及一第一控制端 123。該第一繼電器11包括一 Vcc引腳、一 GND引腳、一 第一 COMMON 引腳 116、一第二 COMMON 引腳 111、一第 一 NC引腳115、一第二NC引腳112、一第一 NO引腳114 和一第二NO引腳113。第一繼電器11之Vcc引腳用於接入 ® —工作電壓，其與第一 COMMON引腳116電性連接。第一 繼電器11之GND引腳與第一三極管12之集電極電性連接。 第二COMMON引腳111用於與第二開關切換裝置20電性 連接。第一 NC引腳115與第二NC引腳112電性連接。該 第一電阻R1及第二電阻R2串聯於第一繼電器11之第一 NO 引腳114與接地之間。該第一電阻R1及該第二電阻R2之間 設有一節點X，該節點X與該第一繼電器11之第二NO引 ❹腳113電性連接。該第一三極管12之基極與第三電阻R3電 性連接，發射極接地。第三電阻R3之另一端為第一控制端 123，其與復位晶片40電性連接，用於接收復位晶片40發 出之復位訊號。, 60 charging function is normal. The 100 includes a first switching device 200944825. Referring to Figure 2, the first switching device 10 is used to switch the charging voltage of the electronic product '60 and to emit a tone when the test is successful. The first switch switching device 10 includes a first relay 11, a first resistor R1, a second resistor R2, a first transistor 12, a third resistor R3, and a first control terminal 123. The first relay 11 includes a Vcc pin, a GND pin, a first COMMON pin 116, a second COMMON pin 111, a first NC pin 115, a second NC pin 112, and a first A NO pin 114 and a second NO pin 113. The Vcc pin of the first relay 11 is used to access the ® - operating voltage, which is electrically coupled to the first COMMON pin 116. The GND pin of the first relay 11 is electrically connected to the collector of the first transistor 12. The second COMMON pin 111 is for electrically connecting to the second switching device 20. The first NC pin 115 is electrically connected to the second NC pin 112. The first resistor R1 and the second resistor R2 are connected in series between the first NO pin 114 of the first relay 11 and the ground. A node X is disposed between the first resistor R1 and the second resistor R2, and the node X is electrically connected to the second NO pin 113 of the first relay 11. The base of the first transistor 12 is electrically connected to the third resistor R3, and the emitter is grounded. The other end of the third resistor R3 is a first control terminal 123 electrically connected to the reset wafer 40 for receiving a reset signal from the reset wafer 40.
該第一繼電器11具有一第一工作模式和一第二工作模 式，其根據第一控制端123接收之復位訊號進行工作模式之 切換。當該第一繼電器11處於第一工作模式時，其第一 COMMON引腳116與第一 NC引腳115導通、第二COMMON 引腳111與第二NC引腳112導通，電流由第一 COMMON 9 200944825 引腳116流向第一 NC引腳115 ’後經第二NC引腳112流 至第二COMMON引腳111，此時，第二COMMON引腳111 ' 之輸出電壓即為工作電壓。 當該第一開關切換裝置1〇之控制端123輸入一復位訊 號時，該第一繼電器11即切換到第二工作模式，並發出發 出提示音。此時，第一 COMMON引腳116與第一引腳NC115 斷開，而與第一 NO引腳114導通；第二COMMON引腳111 與第二NC引腳112斷開，而與第二NO引腳113導通；電 ®流由第一 COMMON引腳116流向第一 NO引腳114，後經 第二NO引腳113流至第二COMMON引腳111。由於第一 電阻R1及第二電阻R2之分壓作用，第一繼電器11之第二 COMMON引腳111之輸出電壓轉化為第二電阻R2兩端之電 壓，且可以通過控制第一電阻R1與第二電阻R2之比值 R1/R2來調節第二COMMON引腳111之輸出電壓。當第一 繼電器10處於第二工作模式時，其第二COMMON引腳111 @之輸出電壓低於電子產品60之過電壓保護值。 第二開關切換裝置20用於與電子產品60電連接以對電 子產品60進行充電，並獲取電子產品60之電池端口 61之 電池電壓。該第二開關切換裝置20包括一第二繼電器21、 一第二三極管22、一第四電阻R4及一第二控制端23。該第 二繼電器21包括一 Vcc引腳、一 GND引腳、一第一 COMMON 引腳 211、一第二 COMMON 引腳 214、一第一 NO引腳213和一第二NO引腳212。第二繼電器21之Vcc 引腳用於接入一工作電壓。第二繼電器21之GND引腳與第 200944825 二三極管22之發射極電性連接。第一 COMMON引卿2ll 用於連接電子產品之電池端口 61。第二COMMON引腳214 ^與第一繼電器11之第二COMMON引腳111電性連接。第一 NO引腳213用於連接電子產品60之充電端口 62。該第二 三極管22之基極與第四電阻R4 —端電性連接，發射極接 地。該第四電阻R4之另一端為第二控制端23。該第二控制 端23用於連接控制單元50,以接收控制單元50發出之控制 訊號以控制測試之開始或停止。 ® 當該第二控制端23接收到一測試開始控制訊號時，第 二繼電器20啟動，其第二COMMON引腳214與第一 NO引 腳213導通，第一 COMMON引腳211與第二NO引腳212 導通，電子產品開始充電。充電電流由第一繼電器11之第 一 COMMON引腳111流向第二繼電器21之第二COMMON 引腳214後，流至第二繼電器21之第一 NO引腳213，進入 電子產品之充電端口 62，充電電流會經電子產品60之充電 ❹電路流至電池端口 61，後流經第二繼電器21之第一 COMMON引腳211，最終流至第二繼電器21之第二NO引 腳212。即，第一繼電器10之第一 COMMON引腳111之輸 出電壓為電子產品60之充電端口 62之充電電壓；第二繼電 器21之第二NO引腳212之輸出電壓為電子產品60之電池 端口 61之電壓。 充放電電路30用於獲取電子產品60之電池電壓，並在 其電池端口 61電壓變化過程中，對復位晶片40起保護作 用。該充放電電路30包括並聯之電容C及第五電阻R5,該 11 200944825 電容C及第五電阻R5接地。該充放電電路30與第二開關切 ' 換裝置20中第二繼電器21之第二NO引腳212電性連接， ' 在測試中第二開關切換裝置20啟動後，該第二NO引腳212 之電壓施加在電容C上，即該第二NO引腳212之電壓等於 電子產品60之電池端口 61之電壓，該電容C隨著電子產品 電池端口 61電壓變化進行充放電。 復位晶片40包括一輸入端VDD，一復位端RESET及一 接地端GND。該復位晶片40之輸入端VDD與第二開關切換 ®裝置20電性連接，復位端RESET與第一開關切換裝置10 之第一控制端123電性連接。該復位晶片40具有一低於電 子產品60之過電壓保護值之門檻電壓。本實施方式中，復 位晶片40之門檻電壓為4V。該復位晶片40之輸入端VDD 之輸入電壓大於門檻電壓4V時，復位端RESET向第一開關 切換裝置10發出復位訊號，以觸發第一開關切換裝置10切 換到第二工作模式，使第一開關切換裝置10之輸出電壓切 _換到電子產品60之過電壓保護值以下，用以避免電子產品 60因過電壓充電而受到損壞。在本實施例中，復位訊號為一 高電平復位訊號。 控制單元50與第二開關切換裝置20之第二控制端23 及電子產品60之電池端口 61電性連接。該控制單元50為 一電腦或單片機等控制裝置，其用以向第二控制端23輸入 一測試開始控制訊號或一測試停止控制訊號，以控制測試之 開始或停止，且用以判斷電子產品60充電功能是否正常。 在本實施例中，測試開始控制訊號為一高電平控制訊號，測 12 200944825 試停止控制訊號為一低電平控制訊號。 ‘ 測試時，將第一繼電器11之Vcc引腳及第二繼電器21 ' 之vcc引腳均接入一工作電壓，將電子產品60之電池端口 61電連接至第二繼電器21之第一 COMMON引腳211及控 制單元50，充電端口 62電連接至第二繼電器21之第一 NO 引腳213。 然後，通過操作控制單元50輸入測試開始控制命令， 控制單元50發送一高電平控制訊號至第二開關切換裝置20 ®之第二控制端23，第二三極管22導通，電流經第二三極管 22放大後，驅動第二繼電器21啟動，電子產品60開始充電。 充電電流經由第一繼電器11之第一 COMMON引腳116、第 一 NC引腳115流向第二NC引腳112，最後經第一繼電器 11之第二COMMON引腳111流至第二繼電器21之第二 COMMON引腳214,再經第二繼電器21之第一 NO引腳213 進入電子產品60之充電端口 62,經電子產品60之充電電路 0流至電池端口 61以為電子產品60之電池充電，並最終流至 第二繼電器21之第二NO引腳212以獲取電子產品60之電 池端口 61之電壓。在充電過程中，控制單元50和電子產品 60之間進行通訊，控制單元50發送一命令至電子產品60 詢問其充電端口 62之充電電流值。如果電子產品60具有回 報充電電流值之功能，即電子產品60可回報充電電流值至 控制單元50,控制單元50收到電子產品60回報之充電電流 值後，根據該充電電流值判斷電子產品60充電是否成功。 若判斷電子產品60充電不成功，則表明電子產品60之充電 13 200944825 功能不正常，此時，控制單元50將產生一測試停止控制訊 ' 號，並將該測試停止控制訊號傳送至控制端23以停止測試。 ' 若判斷電子產品60充電成功，隨著電子產品60不斷被充 電，其電池端口 61之電壓不斷增加。當電池端口 61之電壓 超過復位晶片40之門檻電壓時，則復位晶片40產生一復位 訊號，並將該復位訊號傳送至第一開關切換裝置10。此時， 第一開關切換裝置10切換至第二工作模式，其輸出電壓切 換至電子產品60之過電壓保護值以下，並發出提示音示意 ®電子產品60充電成功，即電子產品60之充電功能正常。此 時，測試人員可以通過操作控制單元50輸入停止測試命令 以停止測試。 當具有回報充電電流值之功能電子產品60因異常而導 致回復充電電流值超時，或電子產品60不具有回復充電電 流值之功能時，若電子產品60充電功能正常，隨著電子產 品60不斷被充電，其電池端口 61之電壓不斷增加。當電池 0端口 61之電壓超過復位晶片40之門檻電壓時，則復位晶片 40產生一高電平復位訊號並將此高電平復位訊號傳送至第 一開關切換裝置10。此時，第一開關切換裝置10切換至第 二工作模式，該第一開關切換裝置10輸入電壓切換至電子 產品60之過電壓保護值以下，並發出提示音示意電子產品 60充電成功，即電子產品60之充電功能正常。此時，測試 人員可以通過操作控制單元50以停止測試。 在上述過程中，若電子產品60充電功能不正常，充電 電流不能流至電池端口 61，復位晶片40之輸入電壓不會超 14 200944825 過其門檻電壓，其不會產生復位訊號給第一開關切換裝置 ‘ ίο，因此，在測試過程沒有提示音提示。 ’ 可以理解，所述第一三極管12及第二三極管22可為其 他放大器件，如場效應管。 可以理解，所述充放電電路30可以省略，即復位晶片 40之復位端RESET與第二開關切換裝置20之第二NO引腳 212電性連接。 所述電子產品充電功能測試裝置100通過控制單元50 ®控制測試開始和停止，並利用第一繼電器11、第二繼電器 20之開關切換特性與復位晶片40之復位作用實現充電電壓 之切換、以及充電成功提示功能，並使充電電壓穩定在電子 產品之過電壓保護值以下，避免電子產品於測試中受損或毀 壞。 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例，本發明之 @範圍並不以上述實施例為限，舉凡熟悉本案技藝之人士援依 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】 圖1係本發明電子產品充電功能測試裝置較佳實施方式 用於測試一電子產品時之功能模組圖。 圖2係本發明電子產品充電功能測試裝置較佳實施方式 之部分電路圖。 15 200944825 【主要元件符號說明】 電子產品充電功能測試裝置 100The first relay 11 has a first operating mode and a second operating mode for switching the operating mode according to the reset signal received by the first control terminal 123. When the first relay 11 is in the first operating mode, its first COMMON pin 116 is turned on with the first NC pin 115, and the second COMMON pin 111 is turned on with the second NC pin 112, and the current is passed by the first COMMON 9 200944825 The pin 116 flows to the first NC pin 115' and then flows through the second NC pin 112 to the second COMMON pin 111. At this time, the output voltage of the second COMMON pin 111' is the operating voltage. When the control terminal 123 of the first switch switching device 1 inputs a reset signal, the first relay 11 switches to the second operation mode and emits a tone. At this time, the first COMMON pin 116 is disconnected from the first pin NC115 and is turned on with the first NO pin 114; the second COMMON pin 111 is disconnected from the second NC pin 112, and the second NO is cited. The pin 113 is turned on; the current flowing from the first COMMON pin 116 to the first NO pin 114 and then through the second NO pin 113 to the second COMMON pin 111. Due to the voltage division of the first resistor R1 and the second resistor R2, the output voltage of the second COMMON pin 111 of the first relay 11 is converted into the voltage across the second resistor R2, and the first resistor R1 and the first resistor can be controlled. The ratio R1/R2 of the two resistors R2 adjusts the output voltage of the second COMMON pin 111. When the first relay 10 is in the second mode of operation, the output voltage of the second COMMON pin 111 @ is lower than the overvoltage protection value of the electronic product 60. The second switch switching device 20 is for electrically connecting to the electronic product 60 to charge the electronic product 60 and to obtain the battery voltage of the battery port 61 of the electronic product 60. The second switch switching device 20 includes a second relay 21, a second transistor 22, a fourth resistor R4 and a second control terminal 23. The second relay 21 includes a Vcc pin, a GND pin, a first COMMON pin 211, a second COMMON pin 214, a first NO pin 213, and a second NO pin 212. The Vcc pin of the second relay 21 is used to access an operating voltage. The GND pin of the second relay 21 is electrically connected to the emitter of the 200944825 diode 32. The first COMMON guide 2ll is used to connect the battery port 61 of the electronic product. The second COMMON pin 214 is electrically connected to the second COMMON pin 111 of the first relay 11. The first NO pin 213 is used to connect the charging port 62 of the electronic product 60. The base of the second transistor 22 is electrically connected to the terminal of the fourth resistor R4, and the emitter is grounded. The other end of the fourth resistor R4 is the second control terminal 23. The second control terminal 23 is used to connect the control unit 50 to receive a control signal from the control unit 50 to control the start or stop of the test. When the second control terminal 23 receives a test start control signal, the second relay 20 is activated, and the second COMMON pin 214 is turned on with the first NO pin 213, and the first COMMON pin 211 and the second NO lead The foot 212 is turned on and the electronic product begins to charge. The charging current flows from the first COMMON pin 111 of the first relay 11 to the second COMMON pin 214 of the second relay 21, and then flows to the first NO pin 213 of the second relay 21 to enter the charging port 62 of the electronic product. The charging current flows to the battery port 61 via the charging circuit of the electronic product 60, then flows through the first COMMON pin 211 of the second relay 21, and finally flows to the second NO pin 212 of the second relay 21. That is, the output voltage of the first COMMON pin 111 of the first relay 10 is the charging voltage of the charging port 62 of the electronic product 60; the output voltage of the second NO pin 212 of the second relay 21 is the battery port 61 of the electronic product 60. The voltage. The charge and discharge circuit 30 is for taking the battery voltage of the electronic product 60 and protecting the reset wafer 40 during the voltage change of the battery port 61 thereof. The charge and discharge circuit 30 includes a capacitor C and a fifth resistor R5 connected in parallel. The 11 200944825 capacitor C and the fifth resistor R5 are grounded. The charge and discharge circuit 30 is electrically connected to the second NO pin 212 of the second relay 21 of the second switch switch device 20, and after the second switch switch device 20 is started in the test, the second NO pin 212 The voltage is applied to the capacitor C, that is, the voltage of the second NO pin 212 is equal to the voltage of the battery port 61 of the electronic product 60, and the capacitor C is charged and discharged as the voltage of the electronic product battery port 61 changes. The reset wafer 40 includes an input terminal VDD, a reset terminal RESET and a ground terminal GND. The input terminal VDD of the reset wafer 40 is electrically connected to the second switch switching device 20, and the reset terminal RESET is electrically connected to the first control terminal 123 of the first switch switching device 10. The reset wafer 40 has a threshold voltage that is lower than the overvoltage protection value of the electronic product 60. In the present embodiment, the threshold voltage of the reset wafer 40 is 4V. When the input voltage of the input terminal VDD of the reset chip 40 is greater than the threshold voltage of 4V, the reset terminal RESET sends a reset signal to the first switch switching device 10 to trigger the first switch switching device 10 to switch to the second working mode, so that the first switch The output voltage of the switching device 10 is switched below the overvoltage protection value of the electronic product 60 to prevent the electronic product 60 from being damaged by overvoltage charging. In this embodiment, the reset signal is a high level reset signal. The control unit 50 is electrically connected to the second control terminal 23 of the second switching device 20 and the battery port 61 of the electronic product 60. The control unit 50 is a control device such as a computer or a single chip microcomputer, and is configured to input a test start control signal or a test stop control signal to the second control terminal 23 to control the start or stop of the test, and to determine the electronic product 60. Whether the charging function is normal. In this embodiment, the test start control signal is a high level control signal, and the test 12 200944825 test stop control signal is a low level control signal. During the test, the Vcc pin of the first relay 11 and the vcc pin of the second relay 21' are both connected to an operating voltage, and the battery port 61 of the electronic product 60 is electrically connected to the first COMMON of the second relay 21. The pin 211 and the control unit 50, the charging port 62 is electrically connected to the first NO pin 213 of the second relay 21. Then, by inputting the test start control command through the operation control unit 50, the control unit 50 sends a high level control signal to the second control terminal 23 of the second switch switching device 20, the second transistor 22 is turned on, and the current is passed through the second After the transistor 22 is amplified, the second relay 21 is driven to start, and the electronic product 60 starts to be charged. The charging current flows to the second NC pin 112 via the first COMMON pin 116 of the first relay 11, the first NC pin 115, and finally flows to the second relay 21 via the second COMMON pin 111 of the first relay 11. The second COMMON pin 214 enters the charging port 62 of the electronic product 60 via the first NO pin 213 of the second relay 21, and flows to the battery port 61 via the charging circuit 0 of the electronic product 60 to charge the battery of the electronic product 60, and Eventually flow to the second NO pin 212 of the second relay 21 to obtain the voltage of the battery port 61 of the electronic product 60. During charging, control unit 50 communicates with electronic product 60, and control unit 50 sends a command to electronic product 60 to inquire about the charging current value of its charging port 62. If the electronic product 60 has the function of reporting the charging current value, that is, the electronic product 60 can report the charging current value to the control unit 50, and after receiving the charging current value reported by the electronic product 60, the control unit 50 determines the electronic product 60 based on the charging current value. Whether the charging is successful. If it is determined that the charging of the electronic product 60 is unsuccessful, it indicates that the charging 13 200944825 of the electronic product 60 is not functioning properly. At this time, the control unit 50 will generate a test stop control signal and transmit the test stop control signal to the control terminal 23 . To stop the test. If it is judged that the electronic product 60 is successfully charged, as the electronic product 60 is continuously charged, the voltage of the battery port 61 is continuously increased. When the voltage of the battery port 61 exceeds the threshold voltage of the reset wafer 40, the reset wafer 40 generates a reset signal and transmits the reset signal to the first switch switching device 10. At this time, the first switch switching device 10 switches to the second operation mode, and the output voltage thereof is switched to the overvoltage protection value of the electronic product 60, and the prompt sound is sounded to indicate that the electronic product 60 is successfully charged, that is, the charging function of the electronic product 60. normal. At this time, the tester can input the stop test command by operating the control unit 50 to stop the test. When the functional electronic product 60 having the reported charging current value causes the return charging current value to expire due to an abnormality, or the electronic product 60 does not have the function of returning the charging current value, if the charging function of the electronic product 60 is normal, the electronic product 60 continuously When it is charged, the voltage of its battery port 61 is constantly increasing. When the voltage of the battery 0 port 61 exceeds the threshold voltage of the reset wafer 40, the reset wafer 40 generates a high level reset signal and transmits the high level reset signal to the first switch switching device 10. At this time, the first switch switching device 10 is switched to the second operation mode, and the input voltage of the first switch switching device 10 is switched to the overvoltage protection value of the electronic product 60, and a prompt tone is issued to indicate that the electronic product 60 is successfully charged, that is, the electronic The charging function of the product 60 is normal. At this point, the tester can stop the test by operating the control unit 50. In the above process, if the charging function of the electronic product 60 is not normal, the charging current cannot flow to the battery port 61, and the input voltage of the reset wafer 40 does not exceed the threshold voltage of the 2009 200925, which does not generate a reset signal to the first switch. The device ' ίο, therefore, there is no prompt tone during the test. It will be understood that the first transistor 12 and the second transistor 22 may be other amplifying devices such as field effect transistors. It can be understood that the charge and discharge circuit 30 can be omitted, that is, the reset terminal RESET of the reset wafer 40 is electrically connected to the second NO pin 212 of the second switch switching device 20. The electronic product charging function testing device 100 controls the start and stop of the test by the control unit 50®, and realizes switching of the charging voltage and charging by utilizing the switching switching characteristics of the first relay 11 and the second relay 20 and the reset action of the reset wafer 40. Successfully prompts the function and stabilizes the charging voltage below the overvoltage protection value of the electronic product to prevent the electronic product from being damaged or destroyed during the test. 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-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. All should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional block diagram of an electronic product charging function testing device of the present invention for testing an electronic product. Fig. 2 is a partial circuit diagram of a preferred embodiment of the electronic product charging function testing device of the present invention. 15 200944825 [Explanation of main component symbols] Electronic product charging function test device 100
第一開關切換裝置 10 第一繼電器 11 第二COMMON引腳 111 第二NC引腳 112 第二NO引腳 113 第一 NO引腳 114 第一 NC引腳 115 第一 COMMON引腳 116 第一三極管 12 第一電阻 R1 第二電阻 R2 第三電阻 R3 第一控制端 123 第二開關切換裝置 20 第二繼電器 21 第一 COMMON引腳 211 第二NO引腳 212 第一 NO引腳 213 第二COMMON引腳 214 第二三極管 22 第四電阻 R4 第二控制端 23 充放電電路 30 電容 C 第五電阻 R5 復位晶片 40 控制單元 50 電子產品 60 電池端口 61 充電端口 62 16First switch switching device 10 first relay 11 second COMMON pin 111 second NC pin 112 second NO pin 113 first NO pin 114 first NC pin 115 first COMMON pin 116 first three pole Tube 12 first resistor R1 second resistor R2 third resistor R3 first control terminal 123 second switch switching device 20 second relay 21 first COMMON pin 211 second NO pin 212 first NO pin 213 second COMMON Pin 214 Second transistor 22 Fourth resistor R4 Second control terminal 23 Charge and discharge circuit 30 Capacitor C Fifth resistor R5 Reset wafer 40 Control unit 50 Electronics 60 Battery port 61 Charging port 62 16