1245541 九、發明說明： 【發明所屬之技術領域】 本發明係有關於-種節能電路’藉由依據電子裝置使用狀態 而控制裝置之内部元件的電源供給，因此達到節約能源的目的。 【先前技術】 P遺著電子研發技術不斷地雜出新，㈣性電子產品也不斷 地演進，朝更強、更快賴魏輕，就·S而言，也朝向輕 薄短小的趨勢設計。當絲魏越來_、速度越來越快的要求 下’就得加入更多功能強大的元件，相對而言其消耗功率也越大。 但隨著環保意識之抬頭以及節約能源之趨勢，要如何在將掃描器 的功能發揮到極限的情況下有效地節約能源則成了我們現在需努 力研究之課題。 習知之一種掃描器内部元件架構包括：電源供應單元、光感 測元件、類比前端（Analog Front End，簡稱AFE)元件、特殊應 用積體電路（Application Specific Integrated Circuits，簡稱 ASIC ) 元件、步進馬達、發光負載、發光負載溫熱裝置、自動送紙器 (Automatic Document Feeder，簡稱 ADF )、控制單元等元件。其 中，電源供應單元係用以提供電源給掃描器内部各個裝置。而光 感測元件一般係一電荷耦合裝置（Charge-Coupled Device，簡稱 CCD) ’負責接收文件經掃描後反射的光，並將吸收到光的強弱轉 換為不同強度的資料訊號後輸出。且類比前端元件用以重整光感 測元件傳來之資料訊號後輸出。再者，特殊應用積體電路元件負 Ϊ245541 責將資料訊號處理成影像訊號後輪出。而步進馬達用以控制光感 測元件之掃描速度。另外，發光負载-般為冷陰極榮光負 責於掃描時對文件發出光線。而發光負載溫熱裝置用以^發光 負=發光負載翻穩定發光亮度。此外，自動送㈣収於掃 掃描文件。最後，控制單⑽―使用者介面，用以設定 掃描器。 而在習知之翻_操作料中，當__機時 供：!掃描器内部各個衷置，以敌動掃描器内部: ^ 騎^為等待使用之期間，也就是待機期間，為了维 胃仍絲^之發光負載，即冷陰極榮光管 冗狀悲’但驗法料符合魏之趨勢也紐倾管 此，為節約能源，另一择作 〜Ρ因 極榮光管之電源切斷於待機躺將掃描器之冷陰 能源3桴機構（USAEPA)於新财之聰年之 瓦 料規4描器於待機狀態之雜功率不可大於6 而於關機狀‘4之消耗功率不可大於 琴 時會將燈管之转岐計，也就是掃㈣於待機狀態 蹈器於待機狀^:^^約^，但纽壯勒、電設計之掃1245541 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to an energy-saving circuit 'that controls the power supply of internal components of the device according to the use state of the electronic device, and thus achieves the goal of saving energy. [Previous technology] P's legacy electronics research and development technology is constantly mixed with new ones, and rugged electronic products are constantly evolving. They are becoming stronger and faster, and as far as S is concerned, they are also designed to be thinner and shorter. As Siwei becomes more and more demanding, it will have to add more powerful components, and its power consumption will be greater. However, with the rising awareness of environmental protection and the trend of saving energy, how to effectively save energy while maximizing the function of the scanner has become a topic that we need to study hard now. A conventional internal component architecture of a scanner includes a power supply unit, a light sensing element, an analog front end (AFE) element, an Application Specific Integrated Circuits (ASIC) element, and a stepping motor. , Light-emitting load, light-emitting load heating device, automatic document feeder (ADF), control unit and other components. Among them, the power supply unit is used to provide power to various devices inside the scanner. The light sensing element is generally a charge-coupled device (CCD). It is responsible for receiving the reflected light after scanning the document, and converting the intensity of the absorbed light into data signals of different intensities to output. The analog front-end component is used to rearrange the data signal from the light-sensing component and output it. In addition, special application integrated circuit components are responsible for processing data signals into image signals and then outputting them. The stepping motor is used to control the scanning speed of the light sensing element. In addition, the luminous load, generally the cold cathode glory, is responsible for emitting light to the document during scanning. The luminous load warming device is used to illuminate the light. Negative = the luminous load is turned to stabilize the luminous brightness. In addition, it automatically sends and closes scanned documents. Finally, the control panel-user interface, is used to configure the scanner. And in the conventional _ operating materials, when __ the machine is provided: the inside of the scanner, the hostile scanner inside: ^ riding ^ is the period of waiting for use, that is, the standby period, in order to maintain the stomach The luminous load of the wire is cold and gloomy, but the test method is in line with Wei ’s trend. It is also a new option. In order to save energy, another option is to cut off the power of the glory tube when it is on standby. Set the scanner's Cold Yin Energy 3 桴 agency (USAEPA) in the new fiscal year of Satoshi's tile gauge. In the standby state, the miscellaneous power of the scanner should not be greater than 6 and the power consumption of the shutdown state '4 cannot be greater than that of the piano. The indicator of the turn of the lamp, that is, sweeping in the standby state, and waiting in the standby state ^: ^^ about ^, but Niuzhuang Le, electric design sweep
电#4耗仍高達17瓦以上，如此仍I 國核境保護機構所制定的標準。 m 因此’目前的掃描器雖然都已具有省電設計’但為符合美國 1245541 如兄保護機構所制定的能約節約標準，如何使掃描器能在功能發 ^到極限的情况下又能符合更嚴格之能職準，便成為掃描裝置 "又计上的一項重要研究課題。 【發明内容】 f於以上的問題，本發明的主要目的在於提供—種節能電 路藉以解决先如技術未能有效地節約能源之問題。 本發明所揭露之節能電路，係依據電子裝置的使用狀態而控 制内。卩it件的電源的供給，㈣卿約能源的目的。 因此，當f子裝置因應料者的需求而致使其魏邁向多元 化且更強大時，本發明所揭露之節能·可解朗強化電子裝置 之功能而產生相對大之能源消耗的問題。 。因此’為達上述目的，本發明提供—種節能電路，用以節約 一電子裝置的電源絲，其包括··特殊朗積體電路以及一個以 上之=源控制單元。此特殊應用積體電路元件肋機電子裝置 而產生L號’而電源控制單元，則係連接於特殊應用積體 、路元件用以根據電子裝置的狀態而控制提供給於電子裝置中 之受控負載的電源電壓。 /、中了依據义控負載的多寡及需要而使用一個以上之電源 、、制單元虹心控負載的電源。也就是，可依據電子裝置的需 求而選擇使用-個以上之電源切斷裝置或—個以上之壓控振蓋裝 作為電源控制單元’或者是同時使用一個以上之電源切斷裝置 1245541 和-個以上之壓控振錄置作為電源控制單元。 並且，電肋斷裝置藉由墙錢供電源給受控負载的 來控制X控貞載n肖耗，藉以制節約裝置之電源消耗。另 外，塵控振盪裝置則是可藉由降低或提供電源給受控受載的 來控制受控負載之f源消耗，以及藉由—觸發錢來啟動裝置， 藉以達到節約裝置之電源消耗。 此外’需配合電·制單元的需求而選擇適#之特殊應用積 就掃描II而言，即·據掃織内部元件❹寡及需要而使 用-個以上之電源控制單元來控制提供給内部树的電源，也就 是因應掃描ϋ内部元件的數量以及電源控制方式而選擇電源控制 單元的數量，以致能達到更有效率地節約能源的消耗。 於此，電源控制單元係雜殊制频電路元件所提供之 «而控制電源供應單元所提供之電源，也就是係依據特殊應用 積體電路元件所提供之信號而控概供給連接至電源控制單元之 受控負載的電源。ID此’即能達到㈣能源之技術功效。 其中，電源靖裝置可於裝置不制之時，將供給受控負載 之電源切斷’其包括：第—信號源、電壓源、第—和第二切換開 關單元以及電壓輸出端。另外’壓控振盪裝置則是於I置不使用 之時，將供給受控受狀電轉低，並且藉由1魏號來啟動 裝置，其包括：第二至第三信號源、電壓源、第三和第四切換開 1245541 關單元以及電壓輸出端。 由於電子裝置内的各個元件皆有各自控制動作，因此，我們 不能因為要節約電源雜就於裝置不使用之時將所有電源切斷， 此會造成電子裝置失去㈣或者賴者控制介面;肖失。另外，若 有與其他裝置树時，更會造成與其他裝置之連剌失。此時， 當需再使用此電子裝置時，則必須麵開機，因而造成使用上的 不便以及仙效率降低。並且，賊_f較大的啟動電源，若 次數頻繁反而會造錢A㈣源消耗，並且造錢子裝置的使用 壽命降低。因此，於本發明中，則是依内部元件的控制動作來選 擇適當的電源控麵式，藉以達到有效率地節約能源。 簡單來說’絲以電肋斷裝置作為第—電源控制單元和以 壓控振錄置作為第二電馳鮮元應用於掃描糾，第一電源 控制單涵以控制掃描器内部树的電源，於待機和職狀態時 控之内部讀的電源。此内部元件即為掃描器内於待機 大恶不使狀♦糾，帛期轉_啸制婦描器 内部4的電源，也就是於待機狀態時期降低受控之内部元件的 電源’且於打f侧上掃描器之電源_時，立即啟動掉受控之 内部元件的電源。此内部元件為掃描器内之特枝件。工 其中，由於於待機期間，掃描器内部許多元件都不需要使用， ==描器間置-段時間（即婦描器設定之進入待機狀態前所 間置時間），立即切斷這些不使用之元件的電源供應，藉以節約能 1245541 源消耗。此不使狀元件例如掃描糾之電_合裝置、步進馬 達、類比前端树、特殊應用積體電路树以及自動送紙器等元 件。另外，於掃描ϋ之内部元件中，有些元件若切斷其電源會造 鱗描器失去使用者介面，並且與誕線之主齡無法侧到與 掃描器之連線，因此於再啟動時戦重新開機才能使用。然而， 重新開機日输肖耗衫能源，並謂轉待掃财統歡才能使 用，如此-來’反騎造歧多制上之不便，進崎低使用效 率„»於此&類兀件即為上述之特定元件，例如掃描11之電源供 應早疋、控鮮元等。因此，為了不造錢用上的不便以及不造 成使用效料低，當料L彳轴㈣時，騎提供給必要元 件的電源降低，只提供維持掃描科線及能立即使用之必要電 源’因此’於接_再啟動錄之時，只要立即供給其動作所需 之電源便能立即使用，也就是，藉由降低必要元件的電源來達到 有效地節省能源的消耗。 此外’掃㈣有些元件於供給·後需料幾分鐘才能立即 使用雖此類兀件不影響掃描器的連線及使用控制，但於再啟動 時需些許日销穩定找翻掃描H最佳使用品質，因此此類元件 =影響制者之使用效率時則可於待機時切斷其斷源，反之， ^是影響制者之使用鱗騎顧賴降低其電源供給。也就 疋我們可依使用者的需求而決定此類元件的省電設計。而此類 疋件例如掃描器之發光負載等。 、 1245541 蓄ΓΓΓ所揭露之節能電路可應用於各種需消耗能源之電子裝 置’像係掃描裝置或多功能事務機等裝置。 本毛月所揭路之節能電路，以掃描器作為朗於本發明之裝 置，以驗證本發明確實可以達到節約能源消耗之技術功效。 =環境保護機構（USAEPA)於新制定之鳩年之能源 即爲準中規定掃描器於待機狀態之消耗辨不可大於6瓦，而 於關機狀態U指掃郎電源插上但尚未_)之絲功率不可 大於1瓦。量測未使用本翻所揭露之節能電路之掃㈣的電源 消耗量時，其待機狀態之雜功率為17.24瓦，且於職狀態之消 耗功率為2.5瓦’可發現此鶴雜量超㈣_境賴機構所訂 定之標準許多。而量測使用本發明所揭露之節能電路之掃瞒器的 電源消耗量時，其於待機狀態之消耗功率減少為3 96瓦，於關機 狀態之雜功率職少為〇 K。此電和肖耗量#較未使用本發 前改善許多’甚至完全符合美_境倾機構所訂定之標準。 有關本發明的特徵與實作，兹配合圖示作最佳實施例詳細說 明如下。 【實施方式】 以下舉出具财關以詳細說明本㈣之内容，並以圖示作 為輔助說明。說明中提及之符號係參照圖式符號。 如第1圖所示’本實施例提供一種節能電路，包括：特_ 用積體電路元件以及賴、控制單元。上述之電源控制單S 30分: 1245541 電路树2G树接，細_祕應單元 制二:之電源。_應用積體電路元件2G會提供控 it:單元30’而電源控制單元~^^ 電源押制單-3Γ信號而控制提供給受控_CL的電源。而且， ^ 70可控制—個以上之受控負載CL1〜CLn的電源。 電源控制單元3G可為電源切斷裝置或者域 fu控貞耗，魅討藉由 動裝置，似翻節姆置之騎、絲。 彳。就來啟 受：::=:電_— 降低或切斷受控負載CL的電時’則藉由電源控制單元如 源控制單元3〇立即切斷受3載^當裝置關機時，則藉由電 負載CL即為裝置之内部元二的電二。並且’上述之受控 種節能電路，特殊應 照第2圖，電源控制單元m包/第電源控制單元。參 SC2兩種，且第_和 —電源控制單元sa、 和第二電源控制單^a、SC2分別為上述之 1245541 電源切斷裝置以及壓控振盪裝置，且其分別與特殊應用積體電路 凡件120相連接，係用以控制電源供應單元供給受控負載 CL1、CL2之電源。換句話說，第一電源控制單元sc〗可於裝置 不使用之時切斷提供給受控負載CL1之電源，其包括了第一信號 源、電壓源、第一和第二切換開關單元以及電壓輸出。而第二電 源控制單凡SC2則是可於裝置不使用之時降低提供給受控負載 CL2之電源，並且其可藉由一觸發信號來啟動裝置，其包括了第 -至第二仏號源、電壓源、第三和第四切換開關單元以及電壓輸 出端° _應用積體電路元件12G會提供控制信號給第一和第二 電源t制單70SC卜SC2，而第一和第二電源控制單元幻、们 再祀據特殊朗積體電路元件提供之信號而控制提供給受控 負載CL1 CL2的電源。並且’第—和第二電源控制單元幻、 句可技制個以上之受控負載1CL1〜1CLn、2CLUCLn的電 源。 也就是，當打啟動時，藉由第—和第二電源控制單元们、 7而提供電源給受控負载⑴、cu。而當裝置進入待機狀態 =一電源控制單元SC1會先切斷受控負載cli之電源，然後 日-電源控制單元SC2再降低受控錄①之電源。隸置再啟 ㈣/電原控制單元SC2藉由一觸發信號而提供電源給受控 、=u ’雜第-電源控制單元奶再提供受控負載CL1之電 ”藉由第-和第二電源控制單元们、sc2而立即切斷 13 1245541 電源給受控負載CLl、CL2。 並且，於本發明之實施例中，可依據受控負載的多寡及需要 而使用-個以上之f源控制單元來控制受控負載的電源。也就 是，可依據電子裝置的需求而選擇使用—個以上之電源切斷裝置 或-個以上之壓控減裝置作為電源控鮮元，或者是同時使用 -個以上之電源切斷裝置和—個以上之壓控振盪裝置作為電源控 制單元。 工 第3圖係為朗根據本發明—實施例之電源控制單元之等效 電路圖。此電源控制單元為—電源切斷裝置，包括了第—信號源、 電壓源、第一和第二切換開關單元以及電壓輸出端。 參照第3圖，第一信號源腿與特殊應用積體電路元件相連 接，用以接收自特__體電路元件產生之信號，絲特殊應 用積體電路元件會_電子裝置陳態，織依據電子I置的狀 態而提供不同電壓準位之電壓信號。就掃描器而言，特殊應用積 體電路元件會_掃描器的狀態，也就是掃描器職、待機、再 啟動或關機等狀態，_依據掃描器的狀g而提供不同電壓準位 之電壓信號。第-和第二切換開關單於別為第—和第二電曰體 Qi、Q2，且第-f晶體Q1為—麵贱晶體㈣二電晶體曰曰吸 為- PNP型電晶體。其中，第一電晶體Q1的基極藉由一阻抗元 件與第一信號源而相接，於此，此阻抗元件為第一電隨。另 外，第-電晶體Q1的基極與接地線_之間減另一阻抗元 14 1245541 P第-電阻R2。而第—電晶體的射極與接地線相連 、、。並且第冑曰曰體Q1的集極藉由一阻抗元件與第二電晶體⑶ 相連接’也就疋，第一電晶體Q1白勺集極與第二電晶體Q2的基極 之間输-第三電阻R3。此外，第二電晶體Q2的基極與其射極 之間輕接-阻抗it件，即第四電阻R4。而第二電晶體吸的集極 連接至電壓輸ii]端QUT1，並且兩者間設置有突波賴裝置，也就 是一保險絲F1。 電壓源VCC用以提供固定之輸入電壓，此外，可於電壓源另 外設計用以濾波之濾波器。且於此，電壓源vcc經由一 Lc濾波 器連接至第二電晶體Q2的基極。並且，此LC濾波器為一電容輸 入濾波态，且為一 L型電容輸入濾波器，也就是輸入濾波電容直 接接於電壓源VCC，其具有高程度的濾波效果且能產生一相對大 之直流電壓。也就是說，於電壓源VCC與接地線GND之間具有 兩相互並聯之第一和第二電容Cl、C2，並且第一電感L1耦接於 電壓源VCC與第二電晶體Q2的基極之間。當電壓源VCC提供輪 入電壓時，先經由第一和第二電容Cl、C2濾除輸入電壓之漣波 後，再經由第一電感L1濾除伴隨著輸入電壓之輸入電流的連波， 以得到一較平滑的直流輸入電壓。而於第二電容C2上並聯一顆小 數值的第一電容C1係為了增加電容量，其有助於濾掉高頻雜訊使 輸入電源更純淨。 另外，電壓輸出端0UT1用以提供輸出電壓給第一電源控制 15 1245541 :::制載’就掃描器而言，上述之受控負載即掃描 二 =亦指於待機狀態不使用之元件，例如 動比前端元件、特殊應用積體電路林以及自 4掃描器之内部元件。於龍輸出端〇UT1盘接地線 ^之岐娜三和細絲0々，_齡獅== :下朗叫源靖裝置作為騎、控解元賴作原理。當 電子4置使㈣’特殊剌積體電路元件提供辭位之電齡號 給第一電源控制單元之第一信號源簡時，此高準位之電納; 自第一信號源_輸入後，使得第一電晶體Q1的基極與射極:: 產生-偏Μ ’且基極趨於正電位使得第—電晶體qi導通且達到飽 和狀態，因此，第-電晶體Q1打開。此時，第—電晶_的集 極電壓下降為低準位之糕（約為零伏特左右），使第 Q2的射極電壓上升為高準位之響，因此於第二電晶體q^射 極與基極之間產生-偏壓，且射極趨於正電位，使第二電晶體從 _而達到飽和狀態，因此，第二電晶體Q2打開，此時電麗輸出 端0UT1提供輸出電壓。 而當電子裝置不使用時，殊應用積體電路元件提供低準位 之電壓信號給第-電源控制單it之第—信號源簡。此低準位之電 壓信號自第-信號源丽輸入後，使得第一電晶體Q1的基極趨於 負電位，此第-電晶體Q1則不導通，因此，第—電晶體Q1於關 16 1245541 的狀態，同時，第二電晶體Q2的射極與基極之間的碰不產生， 因此弟一電晶體_被截斷。因此，第二電晶體㈣關的狀態， 此時輕輸出端ουτι則不提供輸出電愿。 …舉例來說，當掃猫器開機或待機後再啟動時，特殊應用積體 電路讀㈣電子裝置的狀態而輸出高準位之糕信號給第一電 源控制單元之第-信號源聰，而高準位之輕信號輸入後，使得 第—和第二電晶體Q1、Q2打開’因此，電壓輸出端咖立即 f供輸出電壓給第—電源控制單摘控制之内部元件（例如：電 何輕合裝置、步進馬達、類比前端元件、特殊應用雜電路元件 以及自動送紙n等元件等），以使受控之崎元件立即啟動。 而當掃瞒器關機或待機時，特殊應用積體電路元件根據電子 裝置的狀態而輸出鱗位之驗信號給第—電源控鮮元第一信 號源腿’而低準位之電壓信號輸入後，使得第一和第二電晶體 Qi、Q2關閉，因此切斷提供給受控之内部元件（例如：電荷麵合 農置、步進馬達、類比前端姑、特殊應用積體電路it件以及自 動送紙H等το料）的輸出電壓，也就是縣輸出端⑻τι不提 供輸出電壓給受控之内部元件。 另外第4圖係為說明根據本發明一實施例之電源控制單元 之等效電路11。此電源控制單元為—壓控振盪裝置，包括了第二 至第三信號源、電壓源、第三和第四切換開關單元以及電壓輸出 端。 17 1245541 佩=、第4圖’第二信號源1N2用以提供一供電信號以啟動電 1、楚〜早70 ’且經由—阻抗元件連接電_vsw，而此阻抗元件 N1五電阻R5,另外於電壓源VSW與第五電阻R5之間有一接點 第—和第四域源聰、腦與特殊應㈣體電路元件相連 以接收自特殊應用積體電路元件產生之信號，且此特殊應 &貝^電路7L件會伽彳電子裝置的狀態，賴域電子裝置的狀 I、而，供不同之信號。就掃描器而言，特殊應用積體電路元件會 偵，掃描器的狀態，也就是掃描關機、待機、再啟動或關機等 狀態’然後再依據掃描器的狀態而提供不同之錢。槪，第三 #第四切換開關單元分別為第三和第四電晶體Q3、Q4，且第三電 晶體Φ為—ΝΡΝ贱晶體而細電晶體Q4為-ΡΝΡ型電晶體。 其中’第三電晶體q3的基極分別連接至4個阻抗元件的一端，於 此此阻抗元件分別為第六至第九電阻R6〜R9。而第六電阻R6 與接點Ν1之_接第5 f容C5。另外，接點Νι還連接至賴 源VSW，且此電壓源vsw用以提供可調控之輸入電壓。另外， 第七至第九電阻R7〜R9的另一端分別連接至第三和第四信號源 IN3、IN4及接地線GND。第三電晶體Q3的射極與接地線⑽〇 相連接’且其集極藉由一阻抗元件與第四電晶體Q4相連接，意即 第三電晶體Q3的集極與第四電晶體q4的基極之_接第十電阻 R10。此外，第四電晶體Q4的基極與其射極之間耦接一阻抗元件， 即第十一電阻R11。並且第四電晶體q4的射極連接至電壓源 18 1245541 VSW。而第四電晶體Q4的集極連接至電壓輸出端〇UT2,並且兩 者間設置有-濾波器。於此，此濾波料LC濾波器且係_電感輸 入濾波器，也就是濾波電感減於第四電晶體Q4的集極和電壓輸 出端0UT2之間’域波電感與電壓輸出端㈤T2之間有一接點 Ν2，而接點Ν2與接地線GND之間麵接一濾波電容，此渡波電感 和濾波電容分別為第二電感L2及第六電容C6。 於電壓輸出端0UT2提供輸出電壓之前，會先經由第二電感 L2渡除伴隨雜^電壓之輸人電流的連波，崎馳平滑的直流 輸入電壓，再經由第六電容C6濾、除輸出電壓之漣波，_再: 出。此外，於第四電晶體Q4於滤波器之間有一保護電路元件^ 於第二電感L2和第四電晶體Q4的集極之間有—接點N3，而接點 N3與接地線GND之_接一二極體m，此二極體m係一蕭特 基二極體。 以下說明⑽控滅裝置作為電源㈣單元喃作原理。當 電子裝置使麟，特殊應用積體電路元件提供高佔空比之調變= 號給電源控制單元之第四信號源麟，此時，第三和第四電晶體 Q3、Q4依據調變信號而㈣或靖，同時，電麵vsw輸入輸 入電壓，此時電壓輸出端0UT2提供輸出電壓。 而當電子裝置閒置卩«’特殊應用積體電路元件提供低佔空 比之調變信號給電源控制單元之第四信號源賭，此時，第三和第 四電晶體φ、Q4依據調變信號而打開或切斷，藉以降低電壓輸 19 1245541 出端0UT2所提供之輸出電壓。 田電子名置再啟動時，特殊應用積體電路元件則提供 一觸發信號給電源控制單元之第三信號源腿，此時，第二信號源 IN2會根據觸發信號而提供一供電信號，此時，第三和第四電晶體 Q3、Q4的基極與射極之間產生—偏壓，因祕通且達到飽和狀 悲’因此’第二和第四電晶體Q3、Q4打開。此時電壓輸出端⑽丁2 提供輸出龍。然後，特殊朗碰電路元件再提供高佔空比之 说給電源控制單元之第四信號源腿，以使電壓輸出端 0UT2繼續提供輸出電壓。 取後’當電子裝置關機時，特殊應用積體電路元件提供觸發 信號給電源控制單元之第三信號源聰，此時，第三電晶體Q3的 基極趨於負電位，此第三電晶則3則不導通，因此，第三電晶體 Q3於關的狀態，同時，電壓源vsw不輸入輸入電壓，於第四電 晶體Q4的射極與基極之間不產生偏壓，因此第四電晶體Q4則不 導通’使第四電晶體Q4於關的狀態，此時電壓輸出端〇UT2則不 提供之輸出電壓。 舉例來說，當使用掃瞄器時，電源控制單元之第四信號源取4 輪入高佔空比之調變信號，而第三和第四電晶體Q3、Q4隨調變 信號開關，同時，電壓源VSW輸入高電壓準位之輸入電壓，因此， 電髮輪出端0UT2立即提供輸出電壓給第二電源控制單元所控制 之内部元件，以使受控之内部元件立即啟動。 20 1245541 而當掃㈣斜，第：嫩輪之細職源厕輸 入低佔空比之機信號，而第三和第四電晶隨調變作 號開關’ _降低輪㈣⑽2提供給受控之_猶 出電壓。 當再啟動掃瞒器時，電源控制單元之第三信號源删輸入一 觸發信號，同時，第二信號源觀根據此觸發信號提供一供電作 號，使得第三和第四電晶體Q3、Q4打開，因此，電麗輸出端嶋 提供回復弱鲜位之輸出賴給第二電源控解元所控制之内 部兀件。然後’特殊應用積體電路元件再提供高賴準位之電屢 信號給電源控制單元之第四信號源腦，以使電壓輸出端〇㈣ 持續提供輸出賴，崎受控之内部元件立即啟動。 而當掃瞒器關機時，電源控制單元之第三信號源IN3輸入-觸發信號，使得第三和第四電晶體Q3、Q4關閉，同時，電壓源 vsw不輸人輸人電壓，因此，電壓輸出端〇υτ2不提供輸出電壓 給第二錢控鮮元所控制之内部元件，以使受控之内部元件立 即關閉。 另外’參照$ 3圖和第4 ®，當以電源切斷裝置和壓控振盈 裝置刀作為4和4二電源控制單元同時應用於電子裝置時， 田電子裝置使用時’電源控制單元之第一和第四信號源腿、腦 輸來自特殊應用積體電路元件之信號，而第一至第四電晶體 Q1〜Q4隨輸入之信號而開關，因此，電壓輸出端_、⑻丁2 21 1245541 立即提供輸出糕給受控貞載，以使電子裝置立即啟動。 而當電子裝置閒置時，電源控制單元之第一和第四信號源 im、in4輸入來自特殊應用積體電路元件之信號，而第一至第四 電晶體Q1〜Q4隨輸入之信號而開關，因此，因此電麼輸出〇而 不提供輸出輕，且降低電壓輸出oim所提供之輸出電壓，也 就是切斷電肋斷裝置所控歡元叙魏並降低提供給難振 盪裝置所控制之元件的電源。 當再啟動電子裝置時，第二電源控制單元之第三信號源腿 輸入觸發電壓，同時，第二信號源觀根據此觸發信號提供一 供電信號，使得第三和第四電晶體Q3、Q4打開，同時，電塵源 vsw提供輸入電壓，因此，電壓輸出端〇υτ2立即提 給第二電源控制單元所控制之内部元件。然後，特殊應用積體電 路元件再提供信號給電源控制單元之第一和第四信號源蘭、 ΙΝ4 ’以使電壓輸出端〇υΉ、〇UT2繼續提供輸出電壓。 而當電子裝置關機時，電源控制單元之第一和第三信號源 INI、ΙΝ3輸入來自特殊應用積體電路元件之信號，使得第一至第 四電晶體Q1〜Q4關閉，同時，電壓源vcc、vsw不提供輸入電 壓，因此，電壓輸出端0υΉ、〇υτ2不提供輸出電壓給電源控制 單元所控制之内部元件，以使受控負載立即關閉。 舉例來說，當掃描器使用時，電源控制單元之第一和第四信 號源ΙΝ1〜ΙΝ4輸入來自特殊應用積體電路元件之信號，而第一至 22 1245541 第四電晶體Q1〜Q4隨輸入之信號而開關，因此，電壓 0UT1、0UT2立即提供輸出電壓給掃描器之内部树你而 器立即啟動。 使知描 而當掃描器閒置時，電源控制單元之第一矛第 INI ^ ^ 電⑽QW隨輸入之信號而開關’因此，因此電壓輪出= 不k供輸出電壓，且降低電壓輸出_所提供之輸出電壓 就是切斷大部分不使用之元件（例如：電荷麵合震置、步進 類比前端元件、特殊應用積體電路元件以及自動送紙器等元件等） 之電源並降低提供給其餘元件（例如：電源供應單元 等）的電源。 利早兀 當再啟動掃描器時，第二電源控制單元之第三信號源聰輸 入-觸發電壓’同時’第二信號源觀根據此觸發信號提供一供 電信號，使得第三和第四電晶體㈣4打開，同時，電_卿 提供輸入·，因此’電錄出端WT2立即提供輸出電祕第 二電源控辦元所控制之畴树。絲，特殊細積體電路元 件再提供信號給電源控制單元之第一和第四信號源腿、祕，以 使電顯㈣mm、0UT2 _提供輸出電麗。 而當掃描器關機時，電源控制單元之第一和第三信號源 IN卜ΙΝ3輸入來自特殊應用積體電路元件之信號，使得第一至第 四電曰曰體Q1〜Q4關閉’同時，電_ vcc、vsw不提供輸入電 23 1245541 之 轉輪出端〇UT1、〇UT2不提供輸出電祕掃 内敎件1絲邮立即關閉。 軸本翻料述之較佳實施觸露如上，财麟用以限 ，，所屬技術領域f具有通常知識者，在不脫離本發 如和乾圍内，所為之更動與潤飾均屬本發明之範圍，本發 =之專利保職圍視本朗書_之申料_界定麵 【圖式簡單說明】 .第1圖係為說·據本發明—實施例之節能電路之功能方塊 圖； 第2圖係為說明根據本發明另一實施例之節能電路之功能方 塊圖， 第3圖係為說明根據本發明一實施例之電源控制單元之等效 電路圖；以及 > 第4圖係為說明根據本發明一實施例之電源控制單元之等效 電路圖。 / 【主要元件符號說明】 10 電源供應單元 20 特殊應用積體電路元件 30 電源控制單元 110 電源供應單元 120 特殊應用積體電路元件 130 電源控制單元 24 1245541 SCI 第一電源控制單元 SC2 第二電源控制單元 CL 受控負載 CL1 〜CLn 受控負載 1CL、2CL 受控負載 1CL1 〜lCLn 受控負載 2CL1 〜2CLn 受控負載 Cl 第一電容 C2 第二電容 C3 第三電容 C4 第四電容 C5 第五電容 C6 第六電容 D1 二極體 FI 保險絲 GND 接地線 INI 第一信號源 IN2 第二信號源 IN3 第三信號源 IN4 第四信號源 LI 第一電感 L2 第二電感 N1 接點 N2 接點 N3 接點 0UT1 電壓輸出端 OUT2 電壓輸出端 Ql 第一電晶體 Q2 第二電晶體 25 1245541 Q3 第三電晶體 Q4 第四電晶體 R1 第一電阻 R2 第二電阻 R3 第三電阻 R4 第四電阻 R5 第五電阻 R6 第六電阻 R7 第七電阻 R8 第八電阻 R9 第九電阻 RIO 第十電阻 Rll 第十一電阻 VCC 電壓源 VSW 電壓源 26Electricity # 4 still consumes more than 17 watts, so it is still the standard set by the State Nuclear Protection Agency. m Therefore 'Although the current scanners already have a power-saving design', in order to comply with the energy conservation standards formulated by the United States 1245541 such as the Brother Protection Agency, how to make the scanner meet the stricter requirements when the function is reached to the limit The ability to do so has become an important research topic in scanning devices. [Summary of the Invention] In view of the above problems, the main object of the present invention is to provide an energy-saving circuit to solve the problem that the prior art fails to effectively save energy. The energy-saving circuit disclosed in the present invention is controlled according to the use state of the electronic device.卩 it pieces of power supply, ㈣Qing about the purpose of energy. Therefore, when the f-sub-device is made to be more diversified and more powerful in response to the needs of the consumers, the energy-saving and solution-enhancing functions of the electronic device disclosed in the present invention cause a relatively large energy consumption problem. . Therefore, in order to achieve the above-mentioned object, the present invention provides an energy-saving circuit for saving a power wire of an electronic device, which includes a special Langstrom circuit and a source control unit above. This special application integrated circuit component rib machine electronic device generates an L number, and the power control unit is connected to the special application integrated circuit component to control the control provided in the electronic device according to the state of the electronic device. Load supply voltage. /, The use of more than one power supply based on the size of the load and the need to control the power supply of the Honghong control load of the control unit. That is, you can choose to use more than one power cut-off device or more than one voltage-controlled vibration cover as the power control unit according to the needs of the electronic device. Or use more than one power cut-off device 1245541 and one The above voltage-controlled vibration recording is used as a power control unit. In addition, the electric rib breaking device controls the X-control load and the n-shaft consumption by supplying power to the controlled load through the wall money, thereby saving the power consumption of the device. In addition, the dust-control oscillation device can control the f-source consumption of the controlled load by reducing or providing power to the controlled load, and the device is started by triggering money to save the device's power consumption. In addition, 'the special application product that needs to meet the needs of the electrical and control units is as far as Scanning II is concerned, that is, according to the internal components of the scanner and the need and use of more than one power control unit to control the supply to the internal tree The number of power supplies, that is, the number of power control units is selected according to the number of internal components of the scan scan and the power control method, so that more efficient energy consumption can be achieved. Here, the power supply control unit is «provided by the miscellaneous frequency-controlled circuit elements, and the power supply provided by the control power supply unit is controlled and connected to the power supply control unit according to the signal provided by the special application integrated circuit element. The power of the controlled load. ID ’can achieve the technical effect of tritium energy. Among them, the power supply device can cut off the power supply to the controlled load when the device is not manufactured, which includes the first signal source, the voltage source, the first and second switching switch units, and the voltage output terminal. In addition, the 'voltage-controlled oscillation device turns the supply-controlled receiving power to low when I is not in use, and starts the device by the Wei number, which includes: the second to third signal sources, the voltage source, the first The third and fourth switches open the 1245541 switching unit and the voltage output. Since each component in the electronic device has its own control action, we cannot cut off all power when the device is not in use because of the need to save power. This will cause the electronic device to lose control or rely on the control interface; . In addition, if there is a tree with other devices, the connection with other devices will be lost. At this time, when the electronic device needs to be used again, it must be turned on, which causes inconvenience in use and decreases the efficiency. In addition, if the thief _f has a large start-up power, if it is frequently used, it will make money and consume more power, and the life span of the money-making sub-device will be reduced. Therefore, in the present invention, an appropriate power control surface type is selected according to the control action of the internal components, so as to achieve efficient energy saving. In simple terms, the wire uses the electric rib breaking device as the first power supply control unit and the voltage controlled vibration recording device as the second electric motor for the scanning correction. The first power control unit controls the power of the internal tree of the scanner. Internally read power supply for standby and duty time control. This internal component is the scanner's standby in the standby mode, which will not cause the situation to be corrected. The power will be transferred to the internal power supply of the scanner, which is to reduce the power of the controlled internal components during the standby period. When the power supply of the scanner on the f side, immediately turn off the power of the controlled internal components. This internal component is a special feature in the scanner. Among them, during the standby period, many components inside the scanner do not need to be used. == Scanner interposition-period of time (that is, the interval time before the scanner is set to enter the standby state), these are not used immediately. The power supply of the components is used to save energy 1245541 source consumption. This does not make the components such as scanning and correction devices, stepping motors, analog front-end trees, special application integrated circuit trees, and automatic document feeders. In addition, among the internal components of the scanner, if some components are turned off, the scaler will lose its user interface, and the main age of the birth line cannot be connected to the scanner, so when it is restarted, Restart before use. However, re-starting the day to lose energy consumption, and it is said that it will be used until the money is collected, so-to 'come against the inconvenience of diversification and multi-system, low efficiency in the use of ”” here & It is the above-mentioned specific components, such as the power supply of the scanner 11 and the control of freshness. Therefore, in order to avoid the inconvenience of making money and the use of low efficiency materials, when the L 彳 shaft is ㈣, the ride is provided to The power of the necessary components is reduced, and only the necessary power to maintain the scanning line and to be used immediately is provided. Therefore, when the recording is connected and restarted, as long as the power required for its operation is immediately supplied, it can be used immediately, that is, by Reduce the power of necessary components to effectively save energy consumption. In addition, 'Sweep some components after supply and it takes a few minutes before they can be used immediately. Although such components do not affect the connection and control of the scanner, When starting, it takes a few days to stabilize and find the best quality of scanning H. Therefore, when this type of component = affects the use efficiency of the manufacturer, it can cut off the source when it is in standby. On the contrary, ^ is the scale that affects the use of the manufacturer. Gu Laijiang Low its power supply. That is, we can determine the power-saving design of such components according to the needs of users. And such files such as the light-emitting load of the scanner, etc., 1245541 The energy-saving circuit disclosed by ΓΓΓ can be applied to Various electronic devices that need to consume energy, such as scanning devices or multi-function MFPs, etc. The energy-saving circuit disclosed in this paper uses scanners as devices in the invention to verify that the invention can indeed achieve energy savings. Consumption of technical effects. = Environmental Protection Agency (USAEPA) stipulates that the energy consumption of the scanner in the standby state shall be greater than 6 watts in the newly established Year of the Dove, and in the off state U means that the power supply of the scanner is plugged in but The power of the wire that has not been _) cannot be greater than 1 watt. When measuring the power consumption of the sweep that does not use the energy-saving circuit disclosed in this translation, the miscellaneous power in its standby state is 17.24 watts, and the power consumption in the working state is 2.5 It can be found that the miscellaneous amount of this crane exceeds the standard set by the environmental agency. While measuring the power consumption of the concealer using the energy-saving circuit disclosed by the present invention, it is waiting for The power consumption in the state is reduced to 3 96 watts, and the amount of miscellaneous power in the off state is 0K. This electricity and Xiao consumption # is much better than before the use of this hair, and even fully meets the standards set by the United States and the United States. With regard to the features and implementation of the present invention, the best embodiment will be described in detail with reference to the drawings. [Embodiment] The following is a detailed explanation of the contents of this document with financial references, and the drawings are used as an auxiliary description. The symbols mentioned are referred to the diagram symbols. As shown in FIG. 1 'this embodiment provides an energy-saving circuit, including: special integrated circuit components and control units. The above-mentioned power control sheet S 30 minutes: 1245541 Circuit tree 2G tree connection, fine_Secondary unit system 2: power supply._ Application integrated circuit element 2G will provide control it: unit 30 'and power control unit ~ ^^ Power hold unit -3Γ signal and control is provided to Controlled_CL power. Moreover, ^ 70 can control the power of more than one controlled load CL1 ~ CLn. The power control unit 3G can be a power cut-off device or a domain controller to control chastity, and it can be used as a moving device. Alas. Let's start and receive: :::: 电 _— When the power of the controlled load CL is reduced or cut off ', the power control unit such as the source control unit 30 will immediately cut off the load 3 when the device is turned off. The electric load CL is the electric second of the internal element of the device. And, the above-mentioned controlled energy-saving circuit should, in particular, refer to the second figure, the power control unit m package / the first power control unit. There are two types of SC2, and the first and second power control unit sa, and the second power control unit ^ a, SC2 are the above-mentioned 1245541 power cut-off device and voltage-controlled oscillation device, respectively, and they are respectively used with special application integrated circuit where The components 120 are connected to control the power supply unit to supply power to the controlled loads CL1 and CL2. In other words, the first power control unit sc can cut off the power supplied to the controlled load CL1 when the device is not in use, which includes the first signal source, the voltage source, the first and second switching switch units, and the voltage Output. The second power control unit SC2 can reduce the power supply to the controlled load CL2 when the device is not in use, and it can start the device by a trigger signal, which includes the first to second source , Voltage source, third and fourth switch unit and voltage output terminal _ Application integrated circuit element 12G will provide control signals to the first and second power supply system 70SC and SC2, and the first and second power supply control The unit then controls the power supplied to the controlled load CL1 CL2 according to the signals provided by the special Langstrom circuit elements. And the first and second power supply control units can make more than one controlled load power supply 1CL1 ~ 1CLn, 2CLUCLn. That is, when starting, the power is supplied to the controlled loads 控制, cu by the first and second power control units, 7. And when the device enters the standby state = a power control unit SC1 will first cut off the power of the controlled load cli, and then the day-power control unit SC2 will then reduce the power of the controlled record ①. The slave restart / electricity control unit SC2 provides power to the controlled by a trigger signal, and the power supply control unit supplies power to the controlled load CL1 by the first and second power sources. The control units and sc2 immediately cut off the power of 13 1245541 to the controlled loads CL1 and CL2. Moreover, in the embodiment of the present invention, more than one f source control unit can be used according to the size and needs of the controlled load. Control the power supply of the controlled load. That is, you can choose to use more than one power cut-off device or more than one voltage control subtraction device as the power supply control unit according to the needs of the electronic device, or use more than one of them at the same time. The power cut-off device and more than one voltage-controlled oscillation device are used as the power control unit. Figure 3 is an equivalent circuit diagram of the power control unit according to the embodiment of the present invention. This power control unit is a power cut-off device. , Including the first signal source, voltage source, first and second switch unit and voltage output terminal. Referring to Figure 3, the first signal source leg is connected to the special application integrated circuit element for Received from the signal generated by the special __body circuit element, the integrated circuit element of the special application will _the electronic device is in the old state, and we provide the voltage signal of different voltage levels according to the state of the electronic I. As far as the scanner is concerned, the special The application of integrated circuit components will _ state of the scanner, that is, the state of the scanner, standby, restart or shutdown, etc. _ provide voltage signals of different voltage levels according to the shape of the scanner. First and second switching The switches are the first and second transistors Qi and Q2, and the -f crystal Q1 is a -plane crystal. The second transistor is a -PNP transistor. Among them, the first transistor Q1 The base is connected to the first signal source through an impedance element, and here, this impedance element is the first electrical follower. In addition, another impedance element is subtracted between the base of the first transistor Q1 and the ground line _14 1245541 P the first resistor R2. The emitter of the first transistor is connected to the ground wire, and the collector of the first transistor Q1 is connected to the second transistor CU through an impedance element. The third transistor Q1 and the second transistor Q2 base-the third Resistor R3. In addition, the base of the second transistor Q2 and its emitter are connected lightly-impedance it, that is, the fourth resistor R4. The collector of the second transistor is connected to the voltage input ii] terminal QUT1, and A surge device is provided between the two, which is a fuse F1. The voltage source VCC is used to provide a fixed input voltage. In addition, a filter can be designed for filtering in the voltage source. Here, the voltage source vcc passes through An Lc filter is connected to the base of the second transistor Q2. Moreover, the LC filter is a capacitor input filter state and an L-type capacitor input filter, that is, the input filter capacitor is directly connected to the voltage source VCC, It has a high degree of filtering effect and can generate a relatively large DC voltage. That is, there are two first and second capacitors Cl, C2 connected in parallel between the voltage source VCC and the ground line GND, and the first inductor L1 is coupled between the voltage source VCC and the base of the second transistor Q2. When the voltage source VCC provides the turn-in voltage, the ripple of the input voltage is filtered by the first and second capacitors Cl and C2, and then the continuous wave of the input current accompanied by the input voltage is filtered by the first inductor L1. Get a smoother DC input voltage. In parallel, a small value of the first capacitor C1 is connected to the second capacitor C2 in order to increase the capacitance, which helps to filter out high frequency noise and make the input power more pure. In addition, the voltage output terminal OUT1 is used to provide the output voltage to the first power control 15 1245541 ::: Load-making 'As far as the scanner is concerned, the above-mentioned controlled load is scanning two = also refers to components not used in the standby state, such as Motion ratio front-end components, integrated circuits for special applications, and internal components from the 4-scanner. Yulong output terminal UT1 plate ground wire ^ Zhina Sanhe filament 0々, _LING Lion ==: Xia Lang called Yuan Jing device as the principle of riding and controlling Yuan Lai. This high-level susceptance is obtained when the electronic 4 sets the 'special' integrated circuit element to provide the electrical age number of the digits to the first signal source of the first power control unit; since the first signal source_input , So that the base and the emitter of the first transistor Q1 :: generate-bias M 'and the base tends to a positive potential so that the first transistor qi is turned on and reaches a saturation state, so the first transistor Q1 is turned on. At this time, the collector voltage of the -transistor_ drops to a low level (about zero volts), so that the emitter voltage of the Q2 rises to a high level, so the second transistor q ^ A bias voltage is generated between the emitter and the base, and the emitter tends to a positive potential, so that the second transistor reaches a saturation state from _. Therefore, the second transistor Q2 is turned on, and at this time, the output terminal OUT1 provides output. Voltage. And when the electronic device is not used, the integrated circuit element is used to provide a low-level voltage signal to the first-signal source of the first-power control unit it. After the low-level voltage signal is input from the first signal source, the base of the first transistor Q1 tends to a negative potential, and the first transistor Q1 is not turned on. Therefore, the first transistor Q1 is turned off. At the same time, the contact between the emitter and the base of the second transistor Q2 does not occur, so the first transistor _ is cut off. Therefore, in the state where the second transistor is turned off, the light output terminal ουτι does not provide an output voltage at this time. … For example, when the cat sweeper is turned on or restarted after standby, the special application integrated circuit reads the state of the electronic device and outputs a high-level cake signal to the first-signal source Cong of the first power control unit, and After the high-level light signal is input, the first and second transistors Q1 and Q2 are turned on. Therefore, the voltage output terminal immediately supplies the output voltage to the internal components of the single-source control (eg, electric light Devices, stepper motors, analog front-end components, special-application miscellaneous circuit components, and automatic paper-feeding components, etc.), so that controlled Saki components start immediately. And when the concealer is turned off or in standby, the special application integrated circuit element outputs a scale inspection signal to the first power source control unit's first signal source leg and a low-level voltage signal is input according to the state of the electronic device. , So that the first and second transistors Qi and Q2 are turned off, so the internal components provided to the control are cut off (for example: charge surface integration farming, stepping motor, analog front end, special application integrated circuit it parts and automatic The output voltage of the paper feed (such as το material), that is, the county output terminal ⑻τι does not provide the output voltage to the controlled internal components. In addition, Fig. 4 is an equivalent circuit 11 illustrating a power control unit according to an embodiment of the present invention. The power control unit is a voltage-controlled oscillation device, which includes second to third signal sources, voltage sources, third and fourth switch units, and voltage output terminals. 17 1245541 Pei =, Figure 4 'The second signal source 1N2 is used to provide a power supply signal to start electricity 1, Chu ~ early 70', and connected to the _vsw via an impedance element, and this impedance element N1 is five resistors R5, in addition There is a contact between the voltage source VSW and the fifth resistor R5. The first and fourth domain sources, Cong, and the brain are connected to the special application circuit components to receive signals generated by the special application integrated circuit components. The 7L component of the circuit will illuminate the state of the electronic device, depending on the state of the electronic device, and for different signals. As far as the scanner is concerned, special application integrated circuit components will detect the status of the scanner, that is, scanning the status of shutdown, standby, restart or shutdown, and then provide different money depending on the status of the scanner. Alas, the third #fourth switch unit is the third and fourth transistors Q3 and Q4, respectively, and the third transistor Φ is -NPN base crystal and the fine transistor Q4 is -PNP type transistor. Among them, the base of the third transistor q3 is connected to one end of four impedance elements, respectively. Here, the impedance elements are sixth to ninth resistors R6 to R9. The sixth resistor R6 is connected to _ of the contact N1 and connected to the fifth capacitor C5. In addition, the contact No is also connected to the source VSW, and this voltage source vsw is used to provide a regulated input voltage. In addition, the other ends of the seventh to ninth resistors R7 to R9 are connected to the third and fourth signal sources IN3, IN4, and the ground line GND, respectively. The emitter of the third transistor Q3 is connected to the ground line ⑽ ′ and its collector is connected to the fourth transistor Q4 through an impedance element, which means that the collector of the third transistor Q3 and the fourth transistor q4 _ Of the base is connected to the tenth resistor R10. In addition, an impedance element, namely an eleventh resistor R11, is coupled between the base and the emitter of the fourth transistor Q4. And the emitter of the fourth transistor q4 is connected to the voltage source 18 1245541 VSW. The collector of the fourth transistor Q4 is connected to the voltage output terminal OUT2, and a filter is provided between the two. Here, this filter material LC filter is an inductive input filter, that is, the filter inductance is reduced between the collector of the fourth transistor Q4 and the voltage output terminal OUT2. There is a domain wave inductance between the voltage output terminal ㈤T2 A contact capacitor is connected to the contact point N2, and a filter capacitor is connected between the contact point N2 and the ground line GND. The crossing inductor and the filter capacitor are a second inductor L2 and a sixth capacitor C6, respectively. Before the output voltage is provided at the voltage output terminal OUT2, the continuous wave of the input current accompanied by the miscellaneous voltage is eliminated through the second inductor L2, the smooth DC input voltage is filtered, and then the output voltage is filtered and removed by the sixth capacitor C6. Ripples, _re: Out. In addition, there is a protection circuit element between the fourth transistor Q4 and the filter ^ between the second inductor L2 and the collector of the fourth transistor Q4-a contact N3, and the contact N3 and the ground line GND_ Connected to a diode m, this diode m is a Schottky diode. The following describes the principle of the control unit as a power supply unit. When the electronic device is used, the special application integrated circuit element provides a high duty cycle modulation = No. to the fourth signal source of the power control unit. At this time, the third and fourth transistors Q3 and Q4 are based on the modulation signal. And ㈣ or Jing, at the same time, the electrical surface vsw input input voltage, at this time the voltage output terminal OUT2 provides the output voltage. When the electronic device is idle, the special application integrated circuit element provides a modulation signal with a low duty cycle to the fourth signal source of the power control unit. At this time, the third and fourth transistors φ and Q4 are modulated according to the modulation. The signal is turned on or off to reduce the voltage output 19 1245541 output voltage provided by OUT2. When Tian Electronics is re-started, the special application integrated circuit element provides a trigger signal to the third signal source leg of the power control unit. At this time, the second signal source IN2 will provide a power supply signal according to the trigger signal. The third and fourth transistors Q3, Q4 have a bias voltage generated between their bases and emitters. Because of the secret communication and saturation, the second and fourth transistors Q3 and Q4 are turned on. At this time, the voltage output terminal Ding 2 provides an output dragon. Then, the special bumper circuit element provides a high duty cycle to the fourth signal source leg of the power control unit, so that the voltage output terminal OUT2 continues to provide the output voltage. After removal ', when the electronic device is turned off, the special application integrated circuit element provides a trigger signal to the third signal source Cong of the power control unit. At this time, the base of the third transistor Q3 tends to a negative potential, and this third transistor is 3 is not conducting. Therefore, the third transistor Q3 is in an off state. At the same time, the voltage source vsw does not input an input voltage, and no bias is generated between the emitter and the base of the fourth transistor Q4. The crystal Q4 is not turned on, so that the fourth transistor Q4 is turned off. At this time, the voltage output terminal OUT2 does not provide an output voltage. For example, when the scanner is used, the fourth signal source of the power control unit takes four rounds of modulation signals with high duty cycle, and the third and fourth transistors Q3 and Q4 are switched with the modulation signals. The voltage source VSW inputs the input voltage at a high voltage level. Therefore, OUT2 of the electric generator wheel immediately provides the output voltage to the internal components controlled by the second power control unit, so that the controlled internal components start immediately. 20 1245541 And when sweeping obliquely, the first: the fine duty source toilet of the tender wheel inputs a low duty cycle signal, and the third and fourth transistors are numbered with the modulation switch. _Lower wheel 2 is provided to the controlled _Still out the voltage. When the concealer is restarted, the third signal source of the power control unit deletes a trigger signal, and at the same time, the second signal source 28 provides a power supply for the trigger signal according to the trigger signal, so that the third and fourth transistors Q3, Q4 Turn on. Therefore, the output terminal of Dianli provides the output to restore the weak position to the internal components controlled by the second power control unit. Then the special application integrated circuit element provides a high-level electrical signal to the fourth signal source brain of the power control unit, so that the voltage output terminal 0㈣ continuously provides the output signal, and the internal components controlled by Saki start immediately. When the sweeper is turned off, the third signal source IN3 of the power control unit inputs a trigger signal, so that the third and fourth transistors Q3 and Q4 are turned off. At the same time, the voltage source vsw does not input the input voltage. Therefore, the voltage The output terminal υτ2 does not provide an output voltage to the internal components controlled by the second money control fresh element, so that the controlled internal components are turned off immediately. In addition, referring to the figure 3 and the 4th ®, when using a power cut-off device and a voltage-controlled vibration surplus device knife as the 4 and 4 two power control units at the same time applied to the electronic device, when using the field electronic device, the first of the power control unit The first and fourth signal sources transmit signals from special application integrated circuit components, and the first to fourth transistors Q1 to Q4 are switched according to the input signal. Therefore, the voltage output terminal _, ⑻ 丁 2 21 1245541 The output cake is immediately provided to the controlled frame, so that the electronic device starts immediately. When the electronic device is idle, the first and fourth signal sources im, in4 of the power control unit input signals from special application integrated circuit elements, and the first to fourth transistors Q1 to Q4 are switched according to the input signals. Therefore, therefore, the electric output is 0 without providing light output, and the output voltage provided by the voltage output oim is reduced, that is, the control of the electric rib breaking device is controlled and the supply to the components controlled by the difficult-to-oscillate device is reduced. power supply. When the electronic device is restarted, the third signal source leg of the second power control unit inputs a trigger voltage, and at the same time, the second signal source 28 provides a power supply signal according to the trigger signal, so that the third and fourth transistors Q3 and Q4 are turned on. At the same time, the electric dust source vsw provides the input voltage, so the voltage output terminal υτ2 is immediately provided to the internal components controlled by the second power control unit. Then, the special application integrated circuit element then provides signals to the first and fourth signal source lines, IN4 ′ of the power control unit, so that the voltage output terminals 〇υΉ, 〇UT2 continue to provide the output voltage. When the electronic device is turned off, the first and third signal sources INI, IN3 of the power control unit input signals from special application integrated circuit components, so that the first to fourth transistors Q1 to Q4 are turned off, and at the same time, the voltage source vcc , Vsw does not provide input voltage, therefore, the voltage output terminals 0υΉ, 〇υτ2 do not provide output voltage to the internal components controlled by the power control unit, so that the controlled load is turned off immediately. For example, when the scanner is used, the first and fourth signal sources IN1 to IN4 of the power control unit input signals from special application integrated circuit components, and the first to 22 1245541 fourth transistors Q1 to Q4 are input with Therefore, the voltages OUT1 and OUT2 immediately provide the output voltage to the internal tree of the scanner and the device starts immediately. When the scanner is idle, the first control of the power control unit INI ^ ^ QW switch with the input signal 'Therefore, so the voltage wheel out = not for output voltage, and reduce the voltage output _ provided The output voltage is to cut off the power to most of the unused components (such as charge surface integration, stepping analog front-end components, special-application integrated circuit components, automatic document feeders, etc.) and reduce the supply to the remaining components ( For example: power supply unit, etc.). When the scanner is restarted, the third signal source of the second power supply control unit is “sat” and the trigger voltage is “simultaneously”. The second signal source provides a power supply signal according to the trigger signal, so that the third and fourth transistors ㈣4 is turned on, and at the same time, the electronic _qing provides input ·, so 'electric recording terminal WT2 immediately provides the output tree controlled by the second power control unit. Wire, the special fine integrated circuit element then provides signals to the first and fourth signal source legs and secrets of the power control unit, so that the electric display ㈣mm, OUT2 _ provides the output electric beauty. When the scanner is turned off, the first and third signal sources IN1 and 3 of the power control unit input signals from special application integrated circuit components, so that the first to fourth electrical circuits Q1 ~ Q4 are turned off. _ vcc and vsw do not provide input terminals of the runner 23 1245541 〇UT1, 〇UT2 do not provide output Electric scan of internal files 1 silk mail immediately closed. The preferred implementation described in this article has been revealed as above, and Cai Lin is limited. Those who have ordinary knowledge in the technical field f have the usual modifications and modifications without departing from the scope of the present invention. Scope, this issue = the patent guarantee service is based on the definition of the book _ application materials _ simple description. Figure 1 is a functional block diagram of the energy-saving circuit according to the present invention-embodiment; 2 is a functional block diagram illustrating an energy-saving circuit according to another embodiment of the present invention, and FIG. 3 is an equivalent circuit diagram illustrating a power control unit according to an embodiment of the present invention; and FIG. 4 is an illustration An equivalent circuit diagram of a power control unit according to an embodiment of the present invention. / [Description of main component symbols] 10 Power supply unit 20 Special application integrated circuit element 30 Power control unit 110 Power supply unit 120 Special application integrated circuit element 130 Power control unit 24 1245541 SCI First power control unit SC2 Second power control Unit CL Controlled load CL1 ~ CLn Controlled load 1CL, 2CL Controlled load 1CL1 ~ lCLn Controlled load 2CL1 ~ 2CLn Controlled load Cl First capacitor C2 Second capacitor C3 Third capacitor C4 Fourth capacitor C5 Fifth capacitor C6 The sixth capacitor D1 diode FI fuse GND ground line INI first signal source IN2 second signal source IN3 third signal source IN4 fourth signal source LI first inductance L2 second inductance N1 contact N2 contact N3 contact 0UT1 Voltage output terminal OUT2 Voltage output terminal Q1 First transistor Q2 Second transistor 25 1245541 Q3 Third transistor Q4 Fourth transistor R1 First resistor R2 Second resistor R3 Third resistor R4 Fourth resistor R5 Fifth resistor R6 Sixth resistor R7 Seventh resistor R8 Eighth resistor R9 Ninth resistor RIO Tenth resistor Rll Tenth Resistor voltage source VCC voltage source VSW 26