200826409 九、發明說明： 【發明所屬之技術領域】 本發明係有關於省電電路，尤指一種在可攜式電子裝 置上所狀開_換· ’係可選擇地導通可攜式電子事 置上所設之電壓輸人模組及電壓轉換模組，藉以使電池電 壓無法被輸出到可攜式電子裝置者。 【先前技術】 各封减騎生之高科技產品、行動通訊器材 2 Γί新，使得現今人們的生活形態產生了重大的 m νΓ巾最重要的—種可攜式電子產品即筆記型電腦 (__〇’轉受許多年輕族群、上班顧青昧。 不惟’在對各種可攜式電子產品進行設計與研發時，均 =面對有關於電源方面之問題。而—般的可攜式電子裝 1 ’右要長時間且_隨地的仙在獨之場合，勢必消 之1子衣置上所設之電池内所儲存的電源，當電池 用:Γ不叫’即需再外接其它電源。然而，消費者在使 面對的可攜式電子裝置時，特別是筆記型電腦，所最常 复二^問題係筆記型電腦之電職常耗盡，而需要再外接 源錢換電池，*僅令細者制相當目擾，亦降 ~ ' °己组電腦在使用上的便利性。 其中在卩77 4造商仔細追究電源不之各項原因後，發現 原因係當筆記型電腦系統關機後，筆記型電腦内 ^電，會對筆記型電腦内部之南橋晶片（South Bridge 卬鍵盤控制器（KeyboardController，簡稱KBC)等 200826409 邏輯電路進行供電’導致筆記型電腦在_賴下仍有⑽ 〜15〇mW以上的功率池。而且，若筆記型電_部所設之 ic的輸入/輸出接腳⑽pins)並未設定在正確準位時， 則功率之簡將會更高，甚至造就漏電之情形發生。如 此，即使當筆記型電腦在未使狀狀態下，經過-段時間 之放置，減會有電祕盡之情形發生，*但浪費電源， 亦造成消費者之抱怨。 【發明内容】 有鑑於前述筆記型電腦在關機狀態下之功率損耗，所 =成之電壓耗盡等諸多缺失，發明人經過長久努力研究與 實驗’終於開發設計出本發明之—種省電電路及省電^ 法’以低成本、最簡單之方賴底解決筆記型電腦電源 損之問題。 本發明之-目的，係提供一種省電電路，不僅極易適 用於可攜式電子裝置上，且成本低廉，並可徹底電壓耗損 所造成的困擾。省電電路係設有電壓輸人模組，用以選擇 性地接收及輸出可攜式電子裝置所接收的外部電壓或電池 電壓’並於接收到外部電壓時輸出第一致能訊號，省電電 路尚包括電關關、關娜模組及電壓轉換模组，其中 電源開_受使时之·*輸㈣二致能峨與啟動訊 號’開關城模組係電性祕至㈣輸人模組與電源開 關’並選擇性地接收及根據第一致能訊號與該第二致能訊 號’用以決定開關切換模組關閉與否，而電壓轉換模組係 電性柄接至開_麵組，胁__嫌組被關閉時接 200826409 收電墨輸入模組所輸出外部電屢與電池電堡其中之一，用 以於對外部電壓與該電池電堡其令之一轉換後，輸出工作 電壓到可攜式電子裝置内。 本發明之另一目的，係提供一種省電方法，該方法係 用於-可攜式電子裝置上，可使該可攜式電子裝置在關機 之狀態下’大幅降低電麼耗損。該方法係在該可攜式電子 裝置上所設之-電壓輸人触接彳電池時，若該 可攜式電子裝置再接㈣訊號，係令可赋電子裝Λ 置内所設之-_切賴組導通健輸人模組及可 子裝置所賴轉換餘，並令賴轉賴組將= 電壓轉換扭作賴，再將1作電壓輸㈣可攜式電子裝 置内:若_切換模組持續接收到—保持訊號，係持續導 通電虔輸入模組及電塵轉換模組。而當可攜式電子裝置接 收到-_訊號時，且開_換模組停止接收保持訊號， 開，切換餘即情賴輸人池及賴轉賴組之導通 狀態，即可大幅降低電池電壓之耗損。· 為能對本發明之目的、技術特徵及其功效，做更進— 步之認識與瞭解，兹舉實施例配合圖式，詳細說明如下： 【實施方式】 本發明係-種省電電路，請參閱第i圖所示，係適用於 可攜式電子裝置，且可攜式電子裝置係選擇性地接收外部 «(如-般市電）與電池，省電電路丨係包括電壓輸 入模組10、電源開關12、開關切換模組14及電壓轉換模組 16。其中電壓輸入模組1〇係可與一外接單元1〇〇或一電荷儲 200826409 存單元102相電性耦接，以選擇性地接收及輸出外部電壓與 電池電壓，並於接收到外部電壓時輸出第一致能訊號。電 源開關12係受使用者之操作而輸出第二致能訊號與啟動訊 號’開關切換模組14係電性耦接至電壓輸入模組1〇與電源 開關12，並選擇性地接收第一致能訊號與第二致能訊號， 硐根據第一致能訊號與第二致能訊號，用以決定開關切換 模組14關閉與否，而電壓轉換模組16係電性耦接至開關切 換模組14，並於開關切換模組14被關閉時接收電壓輸入模 組10所輸出外部電壓與電池電壓其中之一，用以於對外部 電壓與電池電壓其中之一轉換後，輸出工作電壓。 如此，當電壓輸入模組10接收到外部電壓時，電壓輸 入模組10即輸出第一致能訊號到開關切換模組14，開關切 換模組14即導通電壓輸入模組10及電壓轉換模組16，使外 部電壓得以被傳送到電壓轉換模組16進行電壓的轉換，而 轉換為工作電壓，電壓轉換模組16即再將工作電壓輸出到 可攜式電子裝置。而當電壓輸入模組10接收到電池電壓 時’並且電源開關12被觸壓時，電源開關12係輸出第二致 月包訊號開關切換模組14，開關切換模組14即連接電壓輸入 模組10及電壓轉換模組16，使電池電壓被傳送到電壓轉換 模組16進行電壓的轉換，並再輸出工作電壓到可攜式電子 裝置。 在本發明之一實施例中，復請參閱第1、2圖所示，省 電電路1更包括控制晶片Π，控制晶片17係電性耦接至電源 開關12 ’當控制晶片Π接收到電源開關12被觸壓所產生的 200826409 啟動訊號時，控制晶印即輸出保持訊制電源開關i2， 電源開關12即持續輪出第二致能訊號到開關切換模組i 4， 開關切換模組14即保持在關閉狀態，可供電池電剔夺續的 被傳运到f壓轉換模組16進行賴轉換。而當控制晶片 停止接收電池電壓時，即中斷輸出保持訊制開關切換模 組14，開關切換模組14即切換到開路之狀態，即中斷電壓 輸入模組10及轉換模組16間的連接祕，使電池電壓 無法再被傳送到電壓轉換模組16。如此，在可攜式電子裝 置啟動前或關機後，電池電壓即不會輸出到可攜式電子裝 置，即可大幅降低電池電壓被耗損的速度，以達到省電之 目的。 在η亥貝施例中，復請參閱第1、2圖所示，控制晶片17 係包括通用輸出輸入接腳170，通用輸出輸入接腳17〇係電 性祕至電源關12，並用峨丨縣峨，使開關切換 模組14保持在關閉狀態，即可使電池電壓持續的被傳送到 電壓轉換模組16。 在該實施例中，復請參閱第1、2圖所示，省電電路上 更包括南橋晶片18 (South Bridge chip)及重置晶片19。 其中南橋晶片18係電性耦接至電壓轉換模組16與電源開關 12，用以接收工作電壓與啟動訊號，使南橋晶片18得以根 據啟動訊號而被致能。而重置晶片19係電性輕接於開關切 換模組14與電壓輸入模組1〇，重置晶片19接收外部電壓與 電池電壓其中之一，即輸出外部電壓與電池電壓其中之一 到開關切換模組14。又當重置晶片19接收到外部電壓時， 200826409 係產生苐二致能訊號，並將第三致能訊號持續傳送到電壓 轉換模組16，電壓轉換模組16持續接收到第三致能訊號 9守，係持續對電壓轉換模組16所接收到的外部電壓轉換為 工作電壓，並輸出工作電壓至南橋晶片18。 在該實施例中，復請參閱第1、2圖所示，控制晶片17 係可為一鍵盤控制器（Keyb〇ardController，簡稱KBC)， 控制晶片17亦可為一輸出輸入晶片（SuperI/〇)，而可攜 式電子裝置係可為一筆記型電腦。 本發明係一種省電方法，係應用於可攜式電子裝置 上，請參閱第3圖所示，係包括下列步驟： (301) 可攜式電子裝置所設的電壓輸入模組1〇接收到電池 電壓； (302) 可攜式電子裝置接收到開啟訊號，即令可攜式電子 裝置所設的開關切換模組14導通電壓輸入模組1〇及 可攜式電子裝置所設的電壓轉換模組16，即可在可 攜式電子裝置被開啟前，使電池電壓不被輸出到可 攜式電子裝置，以避免電池電壓被無謂的損耗掉； 在本發明中，電池電壓係可為與電壓輸入模組1〇連 接的電荷儲存單元1〇2所輸出。此外，當與電壓輸入 模組連接的是外接單元100，使電壓輸入模組10 接收到外部電壓時，即令開關切換模組14直接導通 電壓輸入模組10及電壓轉換模組16，使外部電壓直 接被傳送到電壓轉換模組16。 (303) 令電壓轉換模組16將電池電壓轉換為工作電壓，並 200826409 將工作電壓輸出到可攜式電子裝置内 ，即提供可攜 式電子裝置運作所需之電壓； 在本發明中’當電壓轉換模組16接收外部電壓時， 亦對外部電壓進行電轉換，將外部電壓轉換為工 作電壓’並再將工作電壓輸出到可攜式電子裝置 ^如此，即可使轉換電壓後的電池電壓或外部電 壓適用於可攜式電子裝置。 (3〇4)開_麵組14持續接收到保持訊號，係持續導通 電壓輪入模組10及電壓轉換模組16;及 在本爹明中，保持訊號係由可攜式電子裝置内所設 的控制晶片17傳送到開關切換模組14，在可攜式電 子叙置接_開啟訊號時，開啟喊即同時被傳送 J才二制曰曰片17，控制晶片17接收到開啟訊號後即持 績產生保持訊號’並將保持訊賴關切換模 組14 ’令開關切換模組14持續導通電壓輸入模組⑺ 及電壓轉換模組16。 (305)可攜式電子錢接收到—關訊號’且開關切換模 組14停止接收保持訊號，開關切換模組_中斷電 壓輸入模組10及電壓轉換模組16間之導通狀態，使200826409 IX. Description of the invention: [Technical field of the invention] The present invention relates to a power-saving circuit, and more particularly to a portable electronic device that can be selectively turned on in a portable electronic device. The voltage input module and the voltage conversion module are provided so that the battery voltage cannot be output to the portable electronic device. [Prior Art] The high-tech products and mobile communication equipments of the squadrons have made the life style of people today a major m ν Γ towel. The most important kind of portable electronic products, namely notebook computers (_ _〇' has been transferred to many young ethnic groups and went to work in Gu Qingyi. Not only in the design and development of various portable electronic products, but also in the face of power problems. And the portable electronic equipment 1 'Right for a long time and _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ When the consumer is facing the portable electronic device, especially the notebook computer, the most common problem is that the power of the notebook computer is often exhausted, and the external source money is required to replace the battery. The fine system is quite disturbing, and it also drops the convenience of the computer. In the case of 卩77 4 manufacturers carefully investigate the reasons for the power failure, the reason is that when the notebook computer system is turned off, Inside the notebook computer The South Bridge chip inside the notebook computer (South Bridge 卬 keyboard controller (KeyboardController, KBC) and other 200826409 logic circuit for power supply' causes the notebook computer to have a power pool of (10) ~ 15〇mW or more. When the input/output pin (10) pins of the ic unit is not set at the correct level, the power will be higher, and even the leakage will occur. So even when the notebook is in In the state of not being in the state, after the period of time, the situation of the power is lost, but the power is wasted, which also causes complaints from consumers. [Invention] In view of the fact that the aforementioned notebook computer is in the off state Power loss, the voltage is exhausted, and so on, the inventor has long been working hard to study and experiment 'finally developed and designed the power saving circuit and power saving method of the present invention' at a low cost and the simplest The invention solves the problem of the power loss of the notebook computer. The object of the invention is to provide a power saving circuit, which is not only easy to be applied to the portable electronic device, but also has low cost, and It can be completely plagued by voltage loss. The power-saving circuit is equipped with a voltage input module for selectively receiving and outputting the external voltage or battery voltage received by the portable electronic device' and receiving the external voltage. The first enable signal is output, and the power-saving circuit further includes a power-off switch, a Guanna module, and a voltage conversion module, wherein the power supply is turned on, the time is *, the output is (four), the second enable, and the start signal is 'switch city module. The system is electrically connected to (4) the input module and the power switch 'and selectively receives and according to the first enable signal and the second enable signal' to determine whether the switch switching module is turned off or not, and the voltage conversion module The electric handle is connected to the open_face group, and the threat __ suspected group is closed when connected to 200826409. The output of the ink input module is outputted by one of the external power and the battery, for the external voltage and the battery. After switching one of the orders, the output voltage is output to the portable electronic device. Another object of the present invention is to provide a power saving method for use in a portable electronic device that allows the portable electronic device to be substantially reduced in power consumption. The method is based on the voltage input of the portable electronic device, and if the portable electronic device is connected to the (four) signal, the electronic device can be set in the electronic device. The Lai Lai Group will control the conversion of the input module and the sub-devices, and will make the voltage conversion to be used as the voltage conversion (4) in the portable electronic device: if the switch mode The group continuously receives the -keeping signal, which is the continuous conduction, input module and electric dust conversion module. When the portable electronic device receives the -_ signal, and the open-change module stops receiving the hold signal, the switchover is performed on the conduction state of the input pool and the turn-on group, thereby greatly reducing the battery voltage. The loss. In order to understand and understand the purpose, technical features and functions of the present invention, the embodiments and the drawings are described in detail as follows: [Embodiment] The present invention is a power saving circuit, please Referring to FIG. 1 , it is applicable to a portable electronic device, and the portable electronic device selectively receives an external « (such as a general power) and a battery, and the power saving circuit includes a voltage input module 10 , The power switch 12, the switch switching module 14 and the voltage conversion module 16 are provided. The voltage input module 1 can be electrically coupled to an external unit 1A or a charge storage unit 200826409 to selectively receive and output an external voltage and a battery voltage, and when receiving an external voltage. The first enable signal is output. The power switch 12 is electrically coupled to the voltage input module 1 and the power switch 12 by the user's operation to output the second enable signal and the start signal 'switching switch module 14 and selectively receive the first The signal signal and the second enable signal are used to determine whether the switch switching module 14 is turned off according to the first enable signal and the second enable signal, and the voltage conversion module 16 is electrically coupled to the switch switching mode. The group 14 receives one of an external voltage and a battery voltage outputted by the voltage input module 10 when the switch switching module 14 is turned off, and is configured to output a working voltage after converting one of the external voltage and the battery voltage. Thus, when the voltage input module 10 receives the external voltage, the voltage input module 10 outputs the first enable signal to the switch switching module 14, and the switch switching module 14 is the turn-on voltage input module 10 and the voltage conversion module. 16. The external voltage is transmitted to the voltage conversion module 16 for voltage conversion, and converted into an operating voltage, and the voltage conversion module 16 outputs the operating voltage to the portable electronic device. When the voltage input module 10 receives the battery voltage and the power switch 12 is touched, the power switch 12 outputs the second monthly signal switch switch module 14, and the switch switch module 14 is connected to the voltage input module. The voltage conversion module 16 causes the battery voltage to be transmitted to the voltage conversion module 16 for voltage conversion, and then outputs the operating voltage to the portable electronic device. In an embodiment of the present invention, as shown in FIGS. 1 and 2, the power saving circuit 1 further includes a control chip, and the control chip 17 is electrically coupled to the power switch 12' when the control chip receives power. When the switch 12 is pressed to generate the 200826409 start signal, the control chip prints the output to maintain the signal power switch i2, and the power switch 12 continues to rotate the second enable signal to the switch switching module i 4 , the switch switching module 14 That is, it is kept in the off state, and can be transported to the f-voltage conversion module 16 for the battery to be switched. When the control chip stops receiving the battery voltage, the output switching switch module 14 is interrupted, and the switch switching module 14 is switched to the open state, that is, the connection between the voltage input module 10 and the conversion module 16 is interrupted. The battery voltage can no longer be transmitted to the voltage conversion module 16. In this way, before or after the portable electronic device is started, the battery voltage is not output to the portable electronic device, and the speed at which the battery voltage is depleted can be greatly reduced to save power. In the example of ηHuibei, as shown in Figures 1 and 2, the control chip 17 includes a general-purpose output input pin 170, and the general-purpose output input pin 17 is electrically connected to the power supply 12, and is used for 电源In the county, the switch module 14 is kept in the off state, so that the battery voltage is continuously transmitted to the voltage conversion module 16. In this embodiment, as shown in Figures 1 and 2, the power-saving circuit further includes a South Bridge chip 18 and a reset wafer 19. The south bridge chip 18 is electrically coupled to the voltage conversion module 16 and the power switch 12 for receiving the operating voltage and the start signal, so that the south bridge chip 18 can be enabled according to the start signal. The reset chip 19 is electrically connected to the switch switching module 14 and the voltage input module 1 , and the reset chip 19 receives one of the external voltage and the battery voltage, that is, outputs one of the external voltage and the battery voltage to the switch. Switching module 14. When the reset chip 19 receives the external voltage, the 200826409 generates the second enable signal, and the third enable signal is continuously transmitted to the voltage conversion module 16, and the voltage conversion module 16 continues to receive the third enable signal. 9 Guard, continuously converts the external voltage received by the voltage conversion module 16 into an operating voltage, and outputs the operating voltage to the south bridge wafer 18. In this embodiment, as shown in FIGS. 1 and 2, the control chip 17 can be a keyboard controller (Keyb〇ardController, KBC for short), and the control chip 17 can also be an output input chip (SuperI/〇). And the portable electronic device can be a notebook computer. The present invention is a power saving method applied to a portable electronic device. Referring to FIG. 3, the method includes the following steps: (301) The voltage input module 1 of the portable electronic device is received. Battery voltage; (302) The portable electronic device receives the turn-on signal, that is, the switch switching module 14 of the portable electronic device is connected to the voltage input module 1 and the voltage conversion module provided by the portable electronic device. 16, the battery voltage can not be output to the portable electronic device before the portable electronic device is turned on, so as to prevent the battery voltage from being lost unnecessarily; in the present invention, the battery voltage can be a voltage input The module 1〇 is connected to the charge storage unit 1〇2 for output. In addition, when the external unit 100 is connected to the voltage input module, when the voltage input module 10 receives the external voltage, the switch switching module 14 directly turns on the voltage input module 10 and the voltage conversion module 16 to make the external voltage. Directly transferred to the voltage conversion module 16. (303) causing the voltage conversion module 16 to convert the battery voltage into an operating voltage, and the 200826409 outputs the operating voltage to the portable electronic device, that is, providing a voltage required for the operation of the portable electronic device; When the voltage conversion module 16 receives the external voltage, it also electrically converts the external voltage, converts the external voltage into the working voltage 'and outputs the operating voltage to the portable electronic device. Thus, the battery voltage after the voltage is converted. Or external voltage is suitable for portable electronic devices. (3〇4) the open_face 14 continues to receive the hold signal, and the voltage turn-in module 10 and the voltage conversion module 16 are continuously turned on; and in the present description, the hold signal is carried by the portable electronic device The control chip 17 is sent to the switch switching module 14. When the portable electronic device is connected to the open signal, the open call is simultaneously transmitted to the second chip 17, and the control chip 17 receives the turn-on signal. The performance generates a hold signal 'and maintains the switch module 14' to cause the switch switch module 14 to continuously turn on the voltage input module (7) and the voltage conversion module 16. (305) The portable electronic money receives the -signal signal and the switch switching module 14 stops receiving the hold signal, and the switch switching module _ interrupts the conduction state between the voltage input module 10 and the voltage conversion module 16 so that
電池電壓無法被輸出到可攜式電子襄置，即可大幅 減少不必要的損耗。 S 綜上所述，藉由本發明之省電電路及省電方法，經每 際測里電屢之消耗程度後，係達成下列功效·· 、 1.當可攜式電子裝置使用電池電料，藉電壓輪Μ 200826409 組ίο及電壓轉換模組16維持在中斷狀態，即可使電池電壓 即停止輸出到可攜式電子裝置，大幅減少電池電壓的^ 耗，一般省電的電路結構尚有40mW的功率損耗，但本發明 係可使電池電壓的功率損耗降到15mW以下； 2·藉本發明之省電電路1，可大幅延長可攜式電子裝置 之使用時間，-般的筆記型電腦在未賴狀態下，電池電 壓經30天左右即會耗盡，但本發明係使電池電壓需經 天以上才會耗盡，大幅減少電池電壓的功率損耗及可攜式 電子裝置之充電次數； 间 曰3·藉本發明之省電電路丨，至少可使南橋晶㈣及控制 晶片17無法接_電池賴，大幅減少了造成電池電壓不 必要消耗之消耗源； 4·本發明僅需使用數個電晶體 省電之功效，不僅料成本，且易於佈設在電路== 5.可避免電池電翻即將耗盡，可能造成可攜式電子 裝置運作不穩定之狀況發生’心麵可攜式電子裝置得 以在電力充足之狀態下進行運作。 按，以上所述，僅為本發明最佳之一具體實施例，惟 本發明之構造特徵封舰概，任域悉綱技藝者在 本發明領_ ’可輕易思及之變化或修飾，皆可涵蓋在以 下本案之專利範圍。 【圖式簡單說明】 第1圖係本發明之電路圖； 第2圖係本發明之電路結構之—實施例示意圖；及 13 200826409 第3圖係本發明之方法流程圖。 【主要元件符號說明】 省電電路...............1 外接單元...............100 電源開關..............·12 電壓轉換模組.........16 通用輸出輸入接腳…170 重置晶片...............19 電壓輸入模組.........10 電荷儲存單元.........102 開關切換模組.........14 控制晶片...............17 南橋晶片...............18 14The battery voltage cannot be output to the portable electronic unit, which can greatly reduce unnecessary losses. In summary, according to the power saving circuit and the power saving method of the present invention, after the internal consumption of the power is repeatedly consumed, the following effects are achieved: 1. When the portable electronic device uses battery materials, By means of the voltage rim 200826409 group ίο and the voltage conversion module 16 are maintained in the interrupted state, the battery voltage can be stopped and output to the portable electronic device, which greatly reduces the battery voltage consumption. The general power saving circuit structure still has 40mW. The power loss, but the present invention can reduce the power loss of the battery voltage to less than 15mW; 2. The power saving circuit 1 of the present invention can greatly extend the use time of the portable electronic device, and the notebook computer is In the unrelenting state, the battery voltage will be exhausted after about 30 days, but the present invention causes the battery voltage to be exhausted after more than a day, greatly reducing the power loss of the battery voltage and the charging frequency of the portable electronic device;曰3· By the power-saving circuit of the present invention, at least the south bridge crystal (4) and the control wafer 17 can not be connected to the battery, thereby greatly reducing the consumption source that causes unnecessary consumption of the battery voltage; The effect of several transistors to save power is not only cost, but also easy to lay in the circuit == 5. It can avoid the battery power is about to run out, which may cause the unstable operation of the portable electronic device. The electronic device can be operated with sufficient power. According to the above, it is only one of the best embodiments of the present invention, but the structural features of the present invention are well-known to the skilled person in the present invention, and can be easily changed or modified. The scope of patents in this case can be covered. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of the present invention; FIG. 2 is a schematic diagram of an embodiment of a circuit structure of the present invention; and 13 200826409 FIG. 3 is a flowchart of a method of the present invention. [Description of main component symbols] Power saving circuit..................1 External unit...............100 Power switch..... .........·12 Voltage Conversion Module.........16 General Purpose Output Input Pin...170 Reset Chip............... 19 Voltage Input Module.........10 Charge Storage Unit.........102 Switching Switching Module.........14 Control Chip... .........17 South Bridge Chips..................18 14