201214095 六、發明說明： 【發明所屬之技術領域】 本發明與電腦系統的電源管理有關，特別是關於一種電 腦系統、電源供應器及其電源管理方法。 【先前技術】 近年來’ ik著電腦科技持續地進步，市面上販售的各種 電腦設備(例如桌上型電腦及筆記型電腦)也不斷地推陳出201214095 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to power management of a computer system, and more particularly to a computer system, a power supply, and a power management method thereof. [Prior Art] In recent years, IK has continued to advance in computer technology, and various computer equipment sold on the market (such as desktop computers and notebook computers) have been continuously introduced.
=其中筆型電腦由於具備有體積小、重量輕及攜帶方便 專優點’已逐漸成為現代㈣駐商社會中之大部分消費者 選購電腦時的首選。 -般而言’消費者在使用筆記型電腦時，通常係透過電 ^供應器連接至市電電源，以供f給筆記型電腦的電池。請 ^照圖1 ’圖1雜示傳朗筆記型電腦電腦系統透過電源供 =供電給可攜式f子裝置(例如可獻電子|置2(筆記型電 不意圖。如圖1所示，電源供應器丨的内部係將前段的 t線路省略，故VJNPUT—Dc已經是高壓錢電，而非交 2，(未_棚巾)所提供的祕交流電。麵供應器】主 ^包含電阻R卜電感C1及C2、第二控制單元U】、變壓器 :電晶體開關Q卜輸出線路1G、第—輸出端〇υτι及 二端OUT2。輸出線路10位於變壓器T1之二次側回路 =出端〇UT1及第二輸出端0UT2之間，第一輸出端〇υτι 係分別透過接線L1及L2連接至可攜式 于裝置2中之系統端SYs及接地端GND。 虽電源供應器1尚未連接至負載(例如可攜式電子 、’雖然其輸出功率為零，但為了能夠隨時供電，仍持^輸出 201214095 電壓，其控制電路及功率元件亦仍處於工作狀態，因此，這時 候的電源供應器1本身仍會消耗掉一些功率，稱之為「無載功 率J。傳統的電源供應器1的無載功率之所以很難降低，是因 為其假設貞舰時存在’即使電源供絲丨實社並未連接負 ^ ”要f源供應n 1連接至交流獅，職祕應器〗即隨 保持在工作狀悲下’並且其操作^^員率固定在励左右。 在實際應用中，由於電源供應器！已被廣泛地運用於各 =攜式電子裝置2，當細者離開餘並帶走可攜式電子裝 時’往往不會記得要將電源供應器1的交流電源插頭拔 靡哭致電源供應$ 1仍持續消耗無載功率。通常-個電源供 功率約為G.3W，由於全世界隨時可能有數 =萬叶的電源供應器丨處於待機狀態， 造成非常可觀的電能浪費。 則系下來將 【發明内容】 因此 例中根财施㈣—種制錢。.於此實施 應器連供應:以及可攜式㈣ 鱼“ X彳攜式電子裝置包含第-控制單元 置。電源供 ^可雜出單元。第—控制單 - 輪出單元提供不_$ 早心使得可變 腳、偵測單元及第二^供應a包含電源電路、侧接 置。偵測接腳連接可變輪出接可攜式電子裝 接腳，以取得_值。伯、偵剛單元連接偵測 _值隨可變輸出單元的輪出與電源供 201214095 ^器是否連射攜式電子裝置而獨。第二控鮮元連接電源 電路與偵測單元，且輯_縣控機源電路的操作。 =貝施例中’當電源供應器未連接可攜式電子裝置 作。U值為第-制值H鮮元㈣電源電路停止操 可趙施财，可觀電子駭找含電賴組。當 妗出ίΐϊί未對電池模組充電時，第一控制單元控制可變= Among them, the pen type computer has the advantages of small size, light weight and easy to carry. It has gradually become the first choice for most consumers in the modern (4) resident business. - Generally speaking, when consumers use a notebook computer, they are usually connected to the mains power supply through a power supply to supply the battery to the notebook computer. Please refer to Figure 1 'Figure 1 杂 传 朗 朗 朗 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑The internal part of the power supply 丨 omits the t line of the previous stage, so VJNPUT-Dc is already a high-voltage power, not a 2, (not _ shed) provided by the secret AC. Surface supply] main ^ contains resistance R Bu inductors C1 and C2, second control unit U], transformer: transistor switch Q, output line 1G, first-output terminal 〇υτι, and two-terminal OUT2. Output line 10 is located at the secondary side of transformer T1 = output 〇 Between the UT1 and the second output terminal OUT2, the first output terminal 〇υτι is connected to the system terminal SYs and the ground terminal GND of the portable device 2 through the wires L1 and L2, respectively. Although the power supply 1 is not connected to the load. (For example, portable electronic, 'Although its output power is zero, in order to be able to supply power at any time, it still outputs the voltage of 201214095, and its control circuit and power components are still in working state. Therefore, the power supply 1 itself at this time. Still consume some power, call it "No load power J. The reason why the conventional power supply 1's no-load power is difficult to reduce is because it assumes that there is a 'ship even if the power supply is not connected to the negative ^" to supply the source n 1 Connected to the communication lion, the job secrets 〗 〖that is to keep in the work of the sadness' and its operating ^ ^ rate is fixed around the incentive. In practical applications, because the power supply! has been widely used in each = The electronic device 2, when the thinner leaves the room and takes away the portable electronic device, 'often remembers to pull the AC power plug of the power supply 1 to cry the power supply for $1 and still consumes no-load power. Usually - A power supply is about G.3W, because the world's power supply can be in standby mode at any time, causing a considerable waste of power. Then the system will be [invention] - Production of money. In this implementation of the supply of the device: and portable (four) fish "X彳 portable electronic device includes the first - control unit. Power supply ^ miscellaneous unit. - Control list - wheel out unit Providing no _$ early heart makes it variable The detection unit and the second supply a include a power supply circuit and a side connection. The detection pin is connected to the variable wheel to connect the portable electronic mounting pin to obtain the _ value. The connection between the primary and the detection unit is detected _ The value is independent of the rotation of the variable output unit and the power supply for the 201214095 ^ device is connected to the portable electronic device. The second control element is connected to the power supply circuit and the detection unit, and the operation of the source control circuit of the county control unit. In the example, when the power supply is not connected to the portable electronic device, the U value is the first value of the H value (four) power supply circuit stops operating Zhao Shicai, the electronic 骇 骇 含 ΐϊ 。 。 。 。 。 。 。 When the battery module is charging, the first control unit controls the variable
組充電時，第-控制單元控制可變_元提 行正常供電模式。措帛一控制早從制電源電路執 根據本發明之另—具體實施 ，例中，電__連接可_==包= 元，使得可變輪出嚴开為τ 制早兀控制可變輸出單 2、偵測接腳、_單元及第 元連祕=====，勝偵測單 輸出與電源供應器是否連接可攜式子^心可變輸出早凡的 單元連接電源電路與偵測單元；^依、而不同。第二控制 的操作。 依據偵測值來控制電源電路 根據本發明之另一具體實 源官理方法。於此實施例中:㈣秘應裔的電 子裴置，其包含第—押制I- Λ、八應益用以連接可攜式電 控制早几與可變輸出單元，第一控制單元 201214095 控制可變輸出單元，使得可變輪出罝 供應器包含電源電路、_接腳及對日3表輸出。電源 連接可{單元之輸丨端。”_、、二’〃巾制接腳用以 驟.营4伯、，从 t原供應器運作方法包含下列步 L 聊以取得偵測值，其中_值隨可變輸 同」·接著’比對_與對照表，以獲得比 而： 據该比對結果來控制該電源電路之操作。 又 器及供應 式及待機模式的設計，使應u頻操作模 能IT A〜 騎电雜應益不必-直處於工作狀 作ΐ:Τ:其無載功率，並且提升其連接輕負載時 的工作麟，藉以達到節能省電之功效。 所附與精神可以藉由以下的發明詳述及 所附圖式仵到進一步的瞭解。 【實施方式】 本^係揭露-種電腦系統、電源供應器及其電源管理 2並ΪΪΓΓ應器之適當設計，有效降低其無載功率，並 ^升其連驗貞鱗的I作效率，以_祕省電之功效。 ΐ發明之第—較佳具體實施例為—種電腦系統。於 雷’電職，統包含電源供應11及簡式電子裝置。 電源供應益用以提供可攜式電子裝置運作 =可攜式電子裝置可以是筆記型電腦、平板電腦或行動= 裝置’但不以此為限。 «月參…圖2 ’圖2係綠示此實施例中之電腦系統的示意 圖。如圖2所示’電腦系統3包含電源供應器30以及設置於 201214095 可，式電子敦置32内的可變輸出單元32〇 ：：；^ε；£3ΤΤΛΙ1 30 接可攜式電子裝置32。 Ν裝置且其可插拔地連 如電源供應器3〇連接可攜式電子裝置32時，電源供庳器 元之輸_ °可變^單 兀ΚΟ亦連接第一控制單元£(：。雪 m提此，㈣交_(未繪示於圖 電源供應器30包含第二控制單元m、 ==3:電源電路31，其中偵測單元-儲存有： 電源電路31包含輸出線路300、變壓器Ή、 _、第—電隨、第—電感◦、第°二電感 C2、第-輸出端OUT1及第二輸出端〇UT2。 在本實施例中’上述第一電阻幻及第一電感c 直流輸入電壓VJNPUT—Dc與接地端之間。變壓器η之一次 側回路PRI連接於第一電阻R1與直流輸入電壓vjnpUT_dc 之間以及連接至第—電晶體開關Q1的沒極D。賴器T 二次側回路SEC則連接輸出線路3〇〇。 Π 、康例令’第一控制單元U1具有五個接聊。接腳VCC ;、電阻R1與第一電感C1之間。接聊VDD連接於 關與接地端之間。接腳DRI連接至第-電晶體開 關Φ的閘極G。接腳STBY#及接腳_#分別連接至偵測 201214095 單元302的接腳D1及D2。 第-電晶Μ關Q1的源極s連接至接地端。在本實施 例中，電源供應H 30的輪_包含第—輪出端〇υτι 一輸出端OUT2及偵測接腳〇υτ3。上社笛 w山 -, 文唧uu1·3上述第一輸出端OUT1、 ^輸出端OUT2及_接腳〇UT3可以被整合在同一個端 ’而《供絲3G可透過上述端子或連接器來 插入可攜式電子裝置32的電源插孔。 债測單元302的接腳D3連接至_接腳〇υτ3，以取 :、測值。第二電感c2連接於輸出電壓V-〇UTpuT與接地 輸出線路綱連接至第一輸出端咖及第二輸出 當電源供應器30連接可攜式電子裝置32時，第一輸出 1 ουτι連接至可攜式電子裝置％的系統端sys。第二輸出 端OUT2連接至可攜式電子裝置32的接地端。偵測接腳 ^UT3連接至可攜式電子裝置32的可變輸出單元⑽。在本 貫把例中’彳貞測單元3〇2所取得的彳貞測值，係隨可變輸出單 元320的輸出與電源供應器3〇是否連接可攜式電子裝置％ 而不同。 一在本實施例中，可變輸出單元32〇包含第二電阻R2、第 三電阻R3及第二f晶體卩· Q2。第三雜R3與第二電晶 體開關Q2串聯連接而形成一阻抗單元32〇〗。阻抗單元細】 與第二電阻R2並聯連接。 _ s電源供應器30連接可攜式電子裝置32時，可變輸出單 7L 320内部可能僅透過第二電阻R2接地，亦可能透過第二 電阻R2並聯阻抗單元32〇1接地。此外，上述的第一電晶體 201214095 開關Q1及第二電晶體開關Q2可採用金氧半場效電晶體 (MOSFET)，但不以此為限。 為了能夠有效降低電源供應器30的無載功率，電源供應 器30的制單元302會透過侧接腳〇UT3來偵測電源供應 器30是否連接可攜式電子裝置32。When the group is charging, the first control unit controls the variable _ element to perform the normal power supply mode. The first control is performed according to another embodiment of the present invention. In the example, the electric__ connection can be _==package=yuan, so that the variable wheel is strictly opened to the τ system and the variable output is controlled early. Single 2, detection pin, _ unit and the first element secret =====, win detection single output and power supply is connected to the portable sub-heart variable output early unit connection power circuit and detection Measuring unit; ^ depending on, but different. The second controlled operation. Controlling Power Supply Circuits Based on Detected Values Another specific practical method of the present invention is in accordance with the present invention. In this embodiment: (4) the electronic device of the secretive family, which includes the first-in-one I-Λ, the eight-yield to connect the portable electric control early and the variable output unit, and the first control unit 201214095 controls The variable output unit allows the variable wheel output device to include a power circuit, a _ pin, and a counter 3 meter output. The power connection can be {the input end of the unit. "_,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The comparison_and the comparison table are used to obtain the ratio: the operation of the power supply circuit is controlled according to the comparison result. The design of the re-equipment and the supply and standby modes makes it possible for the U-frequency operation mode to be IT A~ to ride on the electric power. It is not necessary to work in a straight line: Τ: its no-load power, and when it is connected to a light load Work Lin, in order to achieve energy saving. The attached and the spirit can be further understood by the following detailed description of the invention and the accompanying drawings. [Embodiment] This system discloses a proper design of a computer system, a power supply and its power management 2 and a power supply device, thereby effectively reducing the unloaded power thereof, and raising the efficiency of the I-sequence of the test. _ Secret power saving effect. The first embodiment of the invention - a preferred embodiment is a computer system. Yu Lei's electric office consists of a power supply 11 and a simple electronic device. The power supply is used to provide portable electronic device operation. The portable electronic device can be a notebook computer, a tablet computer or a mobile device = but not limited thereto. «Monthly Ref....Fig. 2' Fig. 2 is a schematic view showing the computer system in this embodiment. As shown in FIG. 2, the computer system 3 includes a power supply 30 and a variable output unit 32 〇 ; 30 30 2012 2012 2012 2012 2012 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 When the device is plugged and connected, such as the power supply unit 3, when the portable electronic device 32 is connected, the power supply unit is connected to the first control unit (:. snow). m mentioning this, (4) _ (not shown in the diagram power supply 30 includes a second control unit m, == 3: power circuit 31, wherein the detection unit - stored: power circuit 31 includes output line 300, transformer Ή , _, first-electrical, first-inductance ◦, second-degree inductor C2, first-output terminal OUT1, and second output terminal 〇UT2. In the embodiment, the first resistor and the first inductor c are DC input. The voltage VJNPUT_Dc is connected to the ground. The primary side circuit PRI of the transformer η is connected between the first resistor R1 and the DC input voltage vjnpUT_dc and is connected to the pole D of the first transistor switch Q1. The loop SEC is connected to the output line 3〇〇. 、, Kang ordering 'The first control unit U1 has five connections. The pin VCC; the resistor R1 is between the first inductor C1. The connection VDD is connected to the ground and the ground. Between the terminals, the pin DRI is connected to the gate G of the first transistor switch Φ. The pin STBY# and the pin _# Do not connect to pins D1 and D2 of the detection unit 201200. The source s of the first transistor Q1 is connected to the ground. In this embodiment, the wheel of the power supply H 30 includes the first wheel 〇υτι One output terminal OUT2 and detection pin 〇υτ3. Shangshe flute wshan-, Wenyu uu1·3 The above first output terminal OUT1, ^ output terminal OUT2 and _ pin UT3 can be integrated at the same end 'The supply wire 3G can be inserted into the power jack of the portable electronic device 32 through the above terminal or connector. The pin D3 of the debt measuring unit 302 is connected to the _ pin τ3 to take: the measured value. The second inductor c2 is connected to the output voltage V-〇UTpuT and the ground output line is connected to the first output terminal and the second output. When the power supply 30 is connected to the portable electronic device 32, the first output 1 ουτι is connected to the portable The system end sys of the electronic device %. The second output terminal OUT2 is connected to the ground end of the portable electronic device 32. The detecting pin ^UT3 is connected to the variable output unit (10) of the portable electronic device 32. The measured value obtained by the 'measurement unit 3〇2' in the example is the variable output unit 3 The output of 20 is different from whether the power supply 3 is connected to the portable electronic device. In the present embodiment, the variable output unit 32 includes a second resistor R2, a third resistor R3, and a second f crystal. Q2. The third impurity R3 is connected in series with the second transistor switch Q2 to form an impedance unit 32. The impedance unit is finely connected in parallel with the second resistor R2. _ s power supply 30 is connected to the portable electronic device 32 The variable output unit 7L 320 may be grounded only through the second resistor R2, or may be grounded through the second resistor R2 in parallel with the impedance unit 32〇1. In addition, the first transistor 201214095 switch Q1 and the second transistor switch Q2 may be metal oxide half field effect transistors (MOSFETs), but not limited thereto. In order to effectively reduce the no-load power of the power supply 30, the unit 302 of the power supply 30 detects whether the power supply 30 is connected to the portable electronic device 32 through the side pin UT3.
當電源供應器3〇沒有連接可攜式電子裒置％時，偵測 接腳OUT3為空接(floating) ’此時，偵測單元3〇2的接腳d3 所取得的價測值為阻值無限大，此時的_值稱之為第一_ 值。制單S 3〇2比對第一偵測值與其對照表遍，以獲得 偵測^观依據上述比對結果來控制接腳 ^輸出低雜㈣訊號至第二控制單元切的接腳st麵， 單元υι _魏電路31停止操作。更詳細地When the power supply device 3 is not connected to the portable electronic device %, the detection pin OUT3 is floating. At this time, the price measured by the pin d3 of the detecting unit 3〇2 is blocked. The value is infinite, and the _ value at this time is called the first _ value. The processing unit S 3〇2 compares the first detection value with the comparison table to obtain the detection method, and controls the pin to output the low miscellaneous (four) signal to the second control unit to cut the pin st surface according to the comparison result. , Unit υι _ Wei circuit 31 stops operation. In more detail
Hi U1透過獅DRI來控制第—電晶體« ϊ路yrrri’進而使得變壓器T1停止運作，而使得電源 r少其遲滯損失及切換損失，故整個電 原供應3〇的能量雜將會變得非常低。 ^電源供應器30連接可攄式雷；壯φ 〇UT3會連_輸出置32時’偵測接腳 可透過伯· 早320的輸出端，使得偵測單元302 的阻插、’、接腳〇UT3來侦測出可變輸出單元32〇的輪出踹 單元320 2測單元3〇2可藉域測接腳0UT3與可變輸出 早疋划的輪出端的連接，來取得其他_值。_ 式電St攜式電子裝置32處於低耗電狀態，例如：可攜 _電。^組(未 (turn-off)，佶俨铱一 剌弟一電日日體開關Q2關閉 使件第二電阻R3與接地之間成為斷路。此時， 201214095 可變輸出單it 32G的輸出端的值為第二電阻R2的阻值 此單元302所取得的侧值為第二制值。彳貞 302 =而比對對照表3〇21與第二價測值，以獲得比對 偵測单元302依據比對結果控制接腳m及m分別輸出 位(high)訊號及低準位(low)訊號至第二控制單元山 控制單元m控制電源電路31執行省電供電模式，例如：^ 源電路31的操作頻率維持在低速，如：2〇ΚΗζ。 在本實施例中，上述省電供電模式適用於可攜式電 3曰2處於待機狀態、休眠狀態、關機狀態或非充電狀 置較小的狀態，而非對電池充電狀態或開機狀態等耗電量 的狀態，但不以此為限。 在本實施例中，電源供應器3〇於低耗 =酉己的是較低的操作頻率(如：細z)，而先前 f供應器於低耗電_負載狀態下所搭_反而是較高 H)〇 KHz)。因此，相較於先前技術，本發明之電 應器30將會在低耗電的㈣載絲下具有較高的工作效 二而比#又省電。當電源供應II π連接可攜式電子褒置32 子裝置32處於高耗電狀態’例如：可赋電子裝 第一2:*模组充電或可攜式電子裝置32處於職狀態， :制早TL EC控制第二電晶體開關Q2導通(tum 致 二電阻R3接地。第三電阻R3與第二電阻”將並聯連 ’可變輸出單元320㈣出也將會隨之改變。 咖ίΓ單元3〇2透過侦測接腳〇UT3來偵測可變輸出單元 ，的輸出端，以取得第三偵測值。繼而，偵測單元302比斜 2表3〇21與第三谓測值，以獲得比對結果。侦測單元302 、比對結果來控制接腳D1及D2分別輸出高準位⑻洲訊號 201214095 及间準位(high)減JL第二㈣單元m，使得第二控制 U1控制電源電路31的第—電晶體開關φ導通，以二 電路31執行正常供電模式，亦即傳統的工作狀態。二雷、 源電路31的操作頻率約50〜1〇〇 KHz。 請參照圖3，圖3係繪示可變輸出單元32〇進一步勹八 電阻_地端GND之間的第三電晶體：印 。如圖3所示’第二電阻R2與第三電晶體開關& 串聯連接而形成阻抗單元32〇2。阻抗單元32〇2與 一 3201並聯連接。第三電晶體開關φ的閘極端。 第一控制單元EC可控制第三電晶體心 的才呆作。藉此，即使電源供應器3〇連接可攜式電子 第-控制單元EC可控制第二電晶體開關Q2與第三^ 關Q3皆關閉(turn-off)，使得_單元3〇2的接腳〇3 :: 的镇測值為阻值無限大，以停止電源電路31的 于 =攜式電子裝置32不僅可以較為省電，亦可執行電^ (battery learning)的功能。 k 在本實施例中’偵測單元302之接腳D1及D2 於Γ11 T1的一次側回物姻單元搬 之接腳D3所接回路之接地參考點係屬於變壓器丁1 " 回路SEC。由於變壓器T1的一次側回路PRI及L欠側回 需要加以隔離，所以偵測單元搬_部包含有 或光麵合元件’以將屬於一次侧回路PRI的接腳D1及盘 屬於二次側回路SEC的接腳D3加以隔離。 ^ 、圖4 _本發雜佳實酬之電源供麵的電源 法的流程圖。於步驟S10，利用電诉供庳沾占 ―，其中偵 201214095 出與電源供應n是錢接可攜式€子裝置*不同。於步驟 S12，電源供應器的偵測單元比對偵測值與對照表，以獲得比 ，結果。於步驟Sl4 ’偵測單元依據比對結果來控制第二控制 單元，進而控制電源電路之操作。 表一為本發明較佳實施例之電源供應器與可攜式電 置之間的電源營理元音f。 、 偵測單元 電源供應器 接腳D3 阻抗大 (空接） 阻抗中 阻抗小 接腳D1 低準位 (standby) 高準值 (operation) 高準位 (operation) 接腳 D2 低準位 (LFM) 高準位 (HFM) 操作頻率 M. #*»> <低速> 20ΚΗζ <全速> 50-100K Hz 狀態 重載&一般效 率 表一 <省電> 待機&低耗電 ~<^%> 輕載&高效率 可攜式電子裝置 是否充電？ 狀態 不充電 不接電源供 應器 不充電 S3 or S4 or S5 充電 S3 or S4 or S5 SO (開機） 相較於先前技術，本發明較佳實施 藉由以上較佳具體實施例之詳 述本發明之特徵與精神，而並非以上述所^能更加清楚， snm加以限制。相反地: 及具嫌彻於本翻所欲巾請之專利 201214095 【圖式簡單說明】 圖1係繪示傳統的電源供應器供電給可攜式電子裝置之 示意圖。 圖2係繪示根據本發明之一具體實施例中之電腦系統透 過電源供應器供電給可攜式電子裝置的示意圖。 圖3係繪示可變輸出單元進一步包含串接於第二電阻與 接地端之間的第三電晶體開關的示意圖。 圖4係繪示根據本發明之另一具體實施例中之電源供應 器的電源管理方法的流程圖。 【主要元件符號說明】 S10〜S18 :流程步驟 1、30 :電源供應器 3:電腦系統 2、32 :可攜式電子裝置 10、300 :輸出線路 320 :可變輸出單元 3201、3202 :阻抗單元 3021 :對照表 302 :偵測單元 G :閘極 U1 :第二控制單元 T1 :變壓器 PRI : —次側回路 SEC :二次側回路 Q1 :第一電晶體開關 Q2 :第二電晶體開關 D :汲極 S :源極 R1 :第一電阻 R2 :第二電阻 15 201214095 R3 :第三電阻 C1 :第一電感 L1 :第一導線 EC :第一控制單元 C2 ·第二電感 L2 :第二導線 L3 :第三導線 OUT1 :第一輪出端 OUT2 :第二輸出端 OUT3 :債測接聊 VCC、VDD、DRI、STBY、LFM :第二控制單元接腳 SYS :系統端 GND :接地端 V—OUTPUT :輪出電壓V_INPUT_DC :直流輸入電壓 CHG/SYS—0>ί:充電/開機控制訊號Hi U1 controls the first-transistor « yr yr yrrri' through the lion DRI to stop the transformer T1, so that the power supply r has less hysteresis loss and switching loss, so the energy supply of the entire electric source will be very low. ^ Power supply 30 is connected to the 摅-type lightning; Zhuang φ 〇 UT3 will be connected _ output set to 32 when the 'detection pin can pass through the output of the Bosh 320, so that the detection unit 302 is blocked, ', pin 〇 UT3 detects the round output unit of the variable output unit 32 320 2 The measurement unit 3 〇 2 can obtain the other _ value by the connection of the field test pin 0UT3 and the wheel output of the variable output earlier. The portable electronic device 32 is in a low power consumption state, for example, portable power. ^Group (not-turn), 佶俨铱一剌弟一电日日开关 switch Q2 is turned off to make the second resistor R3 and ground become an open circuit. At this time, 201214095 variable output single it 32G output The value of the resistance of the second resistor R2 is the second value obtained by the unit 302. 彳贞302 = and the comparison table 3〇21 and the second price measurement are obtained to obtain the comparison detecting unit 302. According to the comparison result control pins m and m respectively output a high (high) signal and a low level (low) signal to the second control unit, the mountain control unit m controls the power supply circuit 31 to perform a power saving mode, for example, the source circuit 31 The operation frequency is maintained at a low speed, such as: 2. In the embodiment, the power-saving power supply mode is applicable to the portable power module 3 being in a standby state, a sleep state, a shutdown state, or a non-charging state. The state, not the state of the power consumption such as the battery charging state or the power-on state, but not limited thereto. In the embodiment, the power supply device 3 is at a low operating frequency (lower operating frequency). Such as: thin z), and the previous f supply is under the low power _ load state _ instead High H) square KHz). Therefore, the electrical device 30 of the present invention will have a higher operational efficiency under the low power (four) carrying wire than the prior art. When the power supply II π is connected to the portable electronic device 32, the sub-device 32 is in a high power consumption state, for example: the electronic device can be equipped with the first 2: * module charging or the portable electronic device 32 is in a working state, : early The TL EC controls the second transistor switch Q2 to be turned on (the tum causes the two resistors R3 to be grounded. The third resistor R3 and the second resistor) will be connected in parallel to the 'variable output unit 320 (four) will also change accordingly. 咖 Γ unit 3 〇 2 The detection output of the variable output unit is detected by the detection pin UT3 to obtain the third detection value. Then, the detection unit 302 compares the oblique table 2 and the third pre-measurement value to obtain a ratio. The result of the detection unit 302, the comparison result to control the pins D1 and D2 respectively output high level (8) continent signal 201214095 and the level (high) minus JL second (four) unit m, so that the second control U1 controls the power circuit The first transistor switch φ of 31 is turned on, and the normal power supply mode is performed by the two circuits 31, that is, the conventional operating state. The operating frequency of the second lightning source circuit 31 is about 50 〜1 〇〇 KHz. Please refer to FIG. 3, FIG. The system shows the variable output unit 32 〇 further 勹 eight resistors _ between the ground GND Crystal: printed. As shown in Fig. 3, 'the second resistor R2 and the third transistor switch & are connected in series to form an impedance unit 32〇2. The impedance unit 32〇2 is connected in parallel with a 3201. The third transistor switch φ The first control unit EC can control the operation of the third transistor core. Thereby, even if the power supply 3 is connected to the portable electronic first control unit EC, the second transistor switch Q2 and the third can be controlled. ^ The Q3 is turned off-off, so that the value of the pin ::3 :: of the _ unit 3 〇 2 is infinitely large, so that the power supply circuit 31 can be stopped. In the present embodiment, the functions of the battery learning function can be performed. The ground reference point belongs to the transformer 1 " loop SEC. Since the primary side circuit PRI and L underside of the transformer T1 need to be isolated, the detection unit will contain or have an optical component to be once The pin D1 of the side circuit PRI and the disk belong to the pin D3 of the secondary side circuit SEC plus Isolation. ^, Figure 4 _ The flow chart of the power supply method for the power supply of the present is a good example. In step S10, the electricity supply is used for the supply of electricity, and the power supply is n. In the step S12, the detecting unit of the power supply compares the detected value with the comparison table to obtain a ratio, and the result is detected. In step S14, the detecting unit controls the second control unit according to the comparison result. And controlling the operation of the power supply circuit. Table 1 is a power supply vowel f between the power supply and the portable electric device according to the preferred embodiment of the present invention. Detecting unit power supply pin D3 impedance is large (empty connection) impedance medium impedance pin D1 low level (standby) high level operation (operation) high level (operation) pin D2 low level (LFM) High level (HFM) operating frequency M. #*»><lowspeed> 20ΚΗζ <full speed> 50-100K Hz state overload & general efficiency table 1 < power saving > standby & low consumption Electricity ~<^%> Light load & Is the high efficiency portable electronic device charged? The state is not charged, the power supply is not charged, and the S3 or S4 or S5 is charged. S3 or S4 or S5 SO (power on). The present invention is better than the prior art, and the present invention is described in detail by the above preferred embodiments. Characteristics and spirit, not by the above, can be more clearly defined by snm. On the contrary: and the patents that are suspected of being used in this way. 201214095 [Simplified illustration] Figure 1 is a schematic diagram showing the power supply of a conventional power supply to a portable electronic device. 2 is a schematic diagram of a computer system powered by a power supply to a portable electronic device in accordance with an embodiment of the present invention. 3 is a schematic diagram of the variable output unit further including a third transistor switch connected in series between the second resistor and the ground. 4 is a flow chart showing a power management method of a power supply in accordance with another embodiment of the present invention. [Main component symbol description] S10~S18: Flow steps 1, 30: Power supply 3: Computer system 2, 32: Portable electronic device 10, 300: Output line 320: Variable output unit 3201, 3202: Impedance unit 3021: comparison table 302: detection unit G: gate U1: second control unit T1: transformer PRI: - secondary side circuit SEC: secondary side circuit Q1: first transistor switch Q2: second transistor switch D: Bungee S: source R1: first resistor R2: second resistor 15 201214095 R3: third resistor C1: first inductor L1: first conductor EC: first control unit C2, second inductor L2: second conductor L3 : Third wire OUT1: First round output OUT2: Second output OUT3: Debt test VCC, VDD, DRI, STBY, LFM: Second control unit pin SYS: System side GND: Ground terminal V-OUTPUT : Turn-on voltage V_INPUT_DC : DC input voltage CHG/SYS—0> ί: Charging/on control signal
Dl、D2、D3 :偵測單元接腳 31 :電源電路 16Dl, D2, D3: detection unit pin 31: power supply circuit 16