201115918 六、發明說明： 【發明所屬之技術領域】 本發明是有關-種電源連接管理錢，_是-_免電子裝置 連接外接電源時產生電火花現象之電源連接管理裝置。 【先前技術】 大多數的電子裝置皆需要連接外接電源以提供電子裝置操作時所 f的電源。舉例而言，電子裝置可直触魏插職接於供應市電的 »，插座上，或者電子裝置以—電源配接ϋ插座與-電細接n(p0Wer adaptor)連接，電源配接器再插接於插座上以提供所需的電源。 -般而言，電子裝置大多會在系統貞載與電源供應端之間設置— 輸入電容。當電子裝置與電源連接的_，難免會因導電接點的摩擦 以及2輸入電容规造絲大_浪電流而產生敎花縣(啊心 電火花現时能導致導電接闕圍的娜材料齡發黑喊生焦味， 甚至導電接點可能因積破而接觸不良。目此，電火花現象不僅造成消 費者較差的使用經驗，亦可能影響電子裝置的功能。 • 綜上所述’如何避免電子裝置在連接外接電源時產生電火花現象 便是目前極需努力的目標。 【發明内容】 本發明提供一種電源連接管理裝置，其是以一開關電路延遲導通 電子裝置之系統負載以及電源接關之迴路，㈣免電子裝置在 電源時產生的電火花現象。 本發明-實施例之麵連接f理裝置是設置於—電子裝置之一系 統負載以及-電源接點之間，其中系統負載包括—電源輸人端以及;; 201115918 系統接地端，電源接點包括一電源輸出端以及一電源接地端。電源連 接管理裝置包含一輸入電容以及一開關電路。輸入電容之一端與電源 輸出端以及電源輸入端電性連接，其另一端與系統接地端電性連接。 開關電路與系統接地端以及電源接地端電性連接，當一外接電源連接 至電源接點時，開關電路導通。 以下藉由具體實施例配合所附的圖式詳加說明，當更容易瞭解本 發明之目的、技術内容、特點及其所達成之功效。 【實施方式】 B 凊參照圖1，本發明之一較佳實施例之電源連接管理裝置是設置 於-電子裂置之-系統負載13以及一電源接點12之間，其中，系統 負載13包括一電源輸入端〗3i以及一系統接地端132，電源接點 包括一電源輸出端丨21以及一電源接地端122。本發明之電源連接管 理裝置包含一輸入電容C以及一開關電路】！。輸入電容c之一端與電 源輸出端121以及電源輸入端131電性連接，其另一端與系統接地端 132電性連接。開關電路u則與系統接地端132以及電源接地端122 電性連接，當一外接電源連接至電源接點12時，開關電路11導通。 φ *舉例而言，開關電路11包含一第一稽納二極體(zenerdiode)ZDl、 苐電阻R1、一第一稽納二極體ZD2、一第二電阻R2、一第一電 容以及一 N-通道金氧半導體場效電晶體(N-Type Channel Metal201115918 VI. Description of the Invention: [Technical Field] The present invention relates to a power connection management device, and is a power connection management device that generates an electric spark when an external power supply is connected to an electronic device. [Prior Art] Most electronic devices require an external power source to be connected to provide power for the operation of the electronic device. For example, the electronic device can be directly connected to the power supply of the», the socket, or the electronic device is connected with the power supply, the socket and the electric connector n (p0Wer adaptor), and the power adapter is inserted again. Connect to the outlet to provide the required power. In general, electronic devices are mostly placed between the system load and the power supply - input capacitors. When the electronic device is connected to the power supply, it will inevitably be caused by the friction of the conductive contacts and the large input current of the 2-input capacitance gauge. The Huaxian County (the current electric spark can cause the conductive material to be surrounded by the material age) Black hair screams, even conductive contacts may be poorly contacted due to accumulation. Therefore, the spark phenomenon not only causes poor user experience, but also may affect the function of the electronic device. The present invention provides a power connection management device that delays the system load of the electronic device and the power supply by a switching circuit. The circuit, (4) the spark phenomenon generated by the electronic device when the power is off. The surface connection device of the present invention is disposed between one of the system load and the power contact, wherein the system load includes - Power input terminal;;; 201115918 system ground terminal, power contact includes a power output and a power ground. Power connection management The device includes an input capacitor and a switch circuit. One end of the input capacitor is electrically connected to the power output end and the power input end, and the other end is electrically connected to the system ground end. The switch circuit is electrically connected to the system ground end and the power ground end. When an external power supply is connected to the power contact, the switch circuit is turned on. The following is a detailed description of the specific embodiments and the accompanying drawings, when the purpose, technical content, features and the [Embodiment] B 凊 Referring to FIG. 1, a power connection management device according to a preferred embodiment of the present invention is disposed between an electronic split-system load 13 and a power contact 12, wherein the system load 13 includes a power input terminal 3i and a system ground terminal 132. The power contact includes a power output terminal 丨21 and a power ground terminal 122. The power connection management device of the present invention includes an input capacitor C and a switching circuit]! One end of the input capacitor c is electrically connected to the power output end 121 and the power input end 131, and the other end thereof is electrically connected to the system ground end 132. The switch circuit u is electrically connected to the system ground terminal 132 and the power ground terminal 122. When an external power source is connected to the power contact 12, the switch circuit 11 is turned on. φ * For example, the switch circuit 11 includes a first code. Zenerdiode ZDl, 苐 resistor R1, a first sigma diode ZD2, a second resistor R2, a first capacitor, and an N-channel MOSFET (N-Type Channel Metal)
Oxide Semiconductor Field Effect Transistor，NMOSFET ’ NM0S)M 〇 第一稽納二極體ZD1之陰極與電源輸出端121以及電源輸入端131電 性連接。第一電阻R1之一端與第一稽納二極體ZD1之陽極電性連接， 其另-1與第二稽納二極體ZD2之陰極f性連接。第二稽納二極體 ZD2之％極與電源接地端丨22電性連接。第二電阻μ以及第一電容 ci之-端與第二稽納二極體ZD2之陰極電性連接，其另一端與電源 接地端I22電性連接。N_通道金氧半導體電晶體Μ之閘極與第二稽納 201115918 二極體ZD2之陰極電性連接，其源極與電源接地端122電性連接，其 没極與系統接地端132電性連接。 依據上述結構，當外接電源連接至電源接點12並供電時，開關電 路11中之第-電容C1將先進行充電，延遲一預定時間後再導通N_ 通道金氧半導體電晶體Μ使系統負載13接地，系統負載13以及電源 接2 12即形成元整的迴路。由於開關電路丨丨延遲一預定時間後才導 通系統接地端132以及電源接地端122 L卜接電源已翻地與電 源接點12連接’ ϋ此，可避免電源接點12與外接電源雜所產生的 電火花現象。於-實施例中’電源接點12可為一電祕接器插座或者 可為一電源插頭。 /請再參照圖1，本發明之開關電路u更包含一二極體D，其陽極 與系統接地端m電性連接，其陰極與队通道金氧半導體電晶體Μ之 汲極電性連接。 綜合上述，本發明之電源連接管理裝置包含一開關電路，复可延 遲導通系統接地端以及電職_的_，因此在外接電源與 點穩固地連接之前，不會對純負載巾之輸人電容充電而形成渴浪雷 流，以避免產生電火花現象。 以上所述之實施例僅是為說明本發明之技術思想及特點，其 在使熟習此項技藝之人找騎解本剌之内容並細實施，當b 以之限本發明之專利朗，即纽依本發騎細之精神所ς = 等變化或修飾’仍應涵蓋在本發明之專利細内。 = 201115918 【圖式簡單說明】 圖1為一示意圖，顯示本發明一較佳實施例之電源連接管理裝置。 【主要元件符號說明】 11 12 121 122Oxide Semiconductor Field Effect Transistor, NMOSFET ’ NM0S) M 阴极 The cathode of the first sigma diode ZD1 is electrically connected to the power supply output terminal 121 and the power input terminal 131. One end of the first resistor R1 is electrically connected to the anode of the first arrester diode ZD1, and the other -1 is f-connected to the cathode of the second register diode ZD2. The second pole of the second register diode ZD2 is electrically connected to the power ground terminal 丨22. The second resistor μ and the end of the first capacitor ci are electrically connected to the cathode of the second arrester diode ZD2, and the other end thereof is electrically connected to the power ground terminal I22. The gate of the N_channel MOS transistor is electrically connected to the cathode of the second sina 201115918 diode ZD2, and the source thereof is electrically connected to the power ground terminal 122, and the immersion pole and the system ground terminal 132 are electrically connected. connection. According to the above structure, when the external power source is connected to the power contact 12 and supplied with power, the first capacitor C1 in the switch circuit 11 is charged first, and then delayed for a predetermined time before the N-channel MOS transistor is turned on to cause the system load 13 Grounding, system load 13 and power connection 2 12 form a loop. Since the switch circuit 丨丨 is delayed for a predetermined time, the system ground terminal 132 and the power ground terminal 122 L are connected to the power supply contact 12, and the power contact 12 and the external power supply are prevented from being generated. The spark phenomenon. In the embodiment, the power contact 12 can be an electrical socket or can be a power plug. Referring again to FIG. 1, the switch circuit u of the present invention further includes a diode D having an anode electrically connected to the ground terminal m of the system, and a cathode electrically connected to the gate of the channel MOS transistor. In summary, the power connection management device of the present invention includes a switching circuit that delays the grounding of the conduction system and the _ of the electric service, so that the input capacitance of the pure load towel is not applied until the external power supply and the point are firmly connected. Charging to form a thirsty wave of lightning to avoid sparking. The embodiments described above are only for explaining the technical idea and the features of the present invention, and the person skilled in the art is able to find out and implement the contents of the present invention, and b is limited to the patent of the present invention. New Zealand's spirit of riding the finer 等 = equate changes or modifications 'should be covered by the patents of the present invention. = 201115918 [Schematic Description of the Drawings] Fig. 1 is a schematic view showing a power connection management apparatus according to a preferred embodiment of the present invention. [Main component symbol description] 11 12 121 122
131 132 C C1 D Μ R1 R2 ZD1 ZD2 開關電路 電源接點 電源輸出端 電源接地端 系統負載 電源輸入端 系統接地端 輸入電容 第一電容 二極體 Ν-通道金氧半導體電晶體 第一電阻 第二電阻 第一稽納二極體 第二稽納二極體131 132 C C1 D Μ R1 R2 ZD1 ZD2 Switch circuit power supply contact power output power supply grounding system load power input system grounding input capacitance first capacitor diode Ν-channel MOS transistor first resistance second Resistance first gener diode second genus dipole