200931767 • 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種啟動判斷電路’尤指一種透過常備電力單元主動啟 動電子設備之主動式啟動判斷電路。 【先前技術】 在電腦的操作上’可能因為個人使用上的習慣，或者於特殊電腦設備 上’如大型工業電腦等’並無開關按鍵或是開關設置於使用者難以碰觸的 位置，需要具備有自動啟動之功能。以個人電腦為例，目前廣泛使用支援 ATX(AdvancedTechnology extended)主機板規格的電源供應器而言，至少具 ® 有一主電力系統以及一常備電力系統，該主電力系統主要是於開機狀態 下將外cr卩電力供應源之交流電轉換為直流電提供主機板所需要的電力供 應，而該常備電力只要是電源供應器接電時，無論開機或者關機狀態，皆 了和:供主機板持續存在的常備電力(standby power)，通常為+5V，也就是說 只要電源供應器與外部電力供應源連接時，主機板上就會具有一微弱的負 載電流，此一負載電流係作為啟動電腦所需要的基本電力。一般而言，由 於主機板上常備具有此負載電流，使用者可除了如傳統電源供應器般藉由 按鍵之按壓以啟動電腦外，更可透過網路、周邊設備(如滑鼠、鍵盤)或定時 之方法來進行開機；然而上述不同的開機方法仍必須由使用者給予一觸發 Ο 動作，藉由一媒介提供主動開機訊號，才能啟動電腦。 雖然目前主機板大多亦支援自動啟動的功能，也就是說，當接電後直 接碣機的功自b，然而必須於基本輸入輸出系統出ask I叩WO吨加SyStem， BIOS)中對於電源系統管理的部分進行奴，以令該電腦中的電源系統通電 後立即驅動主機啟動。然而此自動開機的方法，係利用主機板上之電池所 ，存之電力而驅動，並非透過常備電力而達成者。因此，若欲使用bi〇s設 疋以進行自動開機，可能會因主機板電池之電量不足 ’或BIOS設定錯誤而 使電腦無法自動開機。 【發明内容】 a本發明之主要目的，在於使電子設備(如電腦)於接電狀態下，可以直接 取得常備電力並將其轉換為驅動電子設備開機之訊號，進而使該電子設備 5 200931767 主動開機。為達上述目的，本發明提供一種主動式啟動判斷電路，電氣連 結於一交直流轉換之電源供應器，該電源供應器至少包含有一常態連接交 流電轉換為直流電之常備電力單元，以及一於開機狀態下將交流電轉換為 直流電以驅動電子設備運作之主電力單元，該啟動判斷電路設置於該常備 電力單元與該主電力單元之間’根據該常備電力單元輸出之電壓產生一參 考位準，並取得來自該常備電力單元之一電力訊號，待將該參考位準與該 電力訊號比較後，輸出一啟動訊號至該主電力單元，以驅動交流電轉換為 直流電。 、… 藉此’只要電源供應器與外部電力供應源相接，本發明即可取得常備 電力所提供電力訊號後，主動將其轉換為啟動訊號，令主電力單元進行供 電，由於常備電力單元於關機狀態下仍負責提供主機板穩定之常備電力， 不會如傳統自動開機模式中，產生電池蓄電量不足或設定錯誤而導致無法 開機之情事。 … 【實施方式】 有關本發明之詳細說明及技術内容，現就配合圖式說明如下： 一請參閱『圖1』所示，係本發明一較佳實施例之電路方塊示意圖，如圖 所示：-種絲式啟關斷電路2G，電氣連結於一交錢轉換之電源供應 器10，該電源供應器1〇由外部電力供應源3〇取得交流電力，並至少包含 有一常態連接交流電轉換為直流電之常備電力單元u，以及一於開機狀態 下將交流電轉換為錢電，以卿電子設備運狀主電力單元12，該啟動 判斷電，2〇設置於該常備電力單元u與該主電力單元^之間，根據該常 備電力單元11触之電壓纽—參雜準，並轉來自該讀電力單元^ 之-電力^ ’待將該參考辦與該電力峨比較後，輸出—啟動訊號至 該主電力早7L I2 ’以轉交流電機為直絲。本個絲皱動 路可獨立設置於該電源供應器10外部(如『圖】』所示 源供應器10内(如『圖2』所示）。 X置於e亥電 請參閱『圖3』所示，係為本發Β月主動式啟動判斷電路較佳實施例之實 ，電路示意圖’該啟動判斷電路2G設置於該主電力單S12與該常備電力 單7G 11之間’鱗—將該參考辦與該電力城相比較之比較電路。該啟 6 200931767 ’ 動判斷電路20與該主電力單元12之間設有一啟閉電路22，該啟閉電路22 接收該啟動訊號並轉換為一啟閉訊號，以啟動主電力單元12。當電源供應 器10與外部電力供應源3〇(如插座等)電氣連接後，該常備電力單元u則將 交流電轉換為直流電’並提供一穩定常備電壓，本發明之啟動判斷電路20 係根據此常備電壓透過電阻分壓的方式取得該參考位準，再者由該常備電 力單元11取得作表示電力輸入的電力訊號，該電力訊號以及該參考位準分 別進入該啟動判斷電路20。於本實施例中，於該啟動判斷電路2〇與該啟閉 電路22之間’亦可設有一轉換該啟動訊號為觸發該啟閉電路22輸出該啟 閉訊號之轉換單元21。待該電力訊號高於該參考位準時，該啟動判斷電路 〇 20則輸出該啟動訊號於該轉換單元21，進而轉換該啟動訊號而觸發該啟閉 電路22，該啟閉電路22可包含有MOS電晶體等切換元件，該啟閉電路22 接收該啟動訊號觸發後，轉換為該啟閉訊號輸出至該主電力單元12，使該 主電力單元Π進行交直流轉換，供給電子設備運作時所需要的電力。 為能調控啟動主電力單元12之時間，該啟動判斷電路2〇更電性連接 時序控制電路23 ’以決疋輸出該啟動訊號之時序。於本實施例中，該時 序控制電路23設置於該常備電力單元11與該啟動判斷電路2〇之間，當該 時序控制電路23取得來自該常備電力單元u的電力訊號，該時序控:^ 路23決定該電力訊號之昇壓速率，直到該電力訊號大於該啟動判斷電路2〇 Ο 中的該參考位準，該啟動判斷電路20始輸出該啟動訊號於該啟閉電路22， 該啟閉電路22受到該啟動訊號之觸發，才產生該啟閉訊號於該主電力單元 12。此外，該時序控制電路23至少包含一組電容群231，對該電力訊號進 行充放電，當該電源供應器10剛接電時，該常備電力單元u所產生出的 電力訊號進入該時序控制電路23，直到該電容群231達到飽和時，該電力 訊號才會傳送到該啟動判斷電路20，與該參考位準進行比較。除此之外， 該時序控制電路23 ,亦包含-可變電P且232，藉由調整電阻大小決定該時序 控制電路23控繼電力城㈣Μ’飾轉後_啟動躺電路 產生該驅動訊號的時間，甚至啟動該主電力單亓19 叙站主 當該電源供應器10接電於外部電力供應源3〇時，其中^常備電力單 元11直接由該外部電力供應源30取得交流電轉換為直流電，並提供一穩 7 200931767 定的+5V常備電力，以該常備電力作為該電力訊號，該電力訊號可直接進 入該啟動判斷電路20，並與該啟動判斷電路2〇所取得的參考位準進行比 較，待該啟動判斷電路20大於該參考位準後，則產生出一啟動訊號於該主 電力單元12，以啟動該主電力單元12進行交直流轉換。除此之外，該常備 電力單元11所提供之電力訊號可先進入該時序控制電路23，該時序控制電 路23調控該電力訊號大於該參考位準之比較時間，以調控整體啟動之時序 長短。再者，該啟動判斷電路20所產生之啟動訊號，可觸發該啟閉電路22 輸出一啟閉訊號至該主電力單元Π，令該主電力單元12進行交直流轉換。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a start-up judging circuit, in particular to an active start judging circuit for actively starting an electronic device through a standing power unit. [Prior Art] In the operation of the computer, it may be because of personal habits, or on special computer equipment, such as large industrial computers, where there is no switch button or switch to be placed in a position that is difficult for the user to touch. There is an automatic start function. In the case of a personal computer, for example, a power supply that supports the ATX (Advanced Technology Extension) motherboard specification has at least a main power system and a standing power system, and the main power system is mainly turned on. The alternating current of the cr卩 power supply is converted into direct current to supply the power supply required by the main board, and the standing electric power is as long as the power supply is connected, regardless of whether the power is turned on or off, and the standby power is continuously provided for the main board. (standby power), usually +5V, which means that as long as the power supply is connected to an external power supply, the motherboard will have a weak load current, which is the basic power required to start the computer. . In general, since the load current is always provided on the motherboard, the user can start the computer by pressing the button as in the conventional power supply, and can also use the network, peripheral devices (such as a mouse, a keyboard) or The method of timing is used for booting; however, the different booting methods described above must still be triggered by the user, and the active boot signal can be activated by a medium to start the computer. Although most of the motherboards currently support the function of automatic start-up, that is, when the power is turned off, the function of the machine is directly b, but it must be in the basic input/output system for the Ask I叩WO ton plus SyStem, BIOS) for the power system. The managed part is slaved so that the power system in the computer is powered on and the host is started immediately. However, this method of automatically starting up is driven by the battery stored on the motherboard, and is not achieved by standing power. Therefore, if you want to use the bi〇s device for automatic power-on, the computer may not be powered on automatically due to insufficient power on the motherboard battery or BIOS settings. SUMMARY OF THE INVENTION The main purpose of the present invention is to enable an electronic device (such as a computer) to directly obtain the standing power and convert it into a signal for driving the electronic device to be powered on, thereby making the electronic device 5 200931767 active. Boot up. In order to achieve the above objective, the present invention provides an active start determination circuit electrically connected to an AC/DC conversion power supply, the power supply includes at least a normal power unit for normally connecting AC power to DC power, and a power on state. Converting the alternating current into direct current to drive the main power unit of the electronic device, the start determining circuit is disposed between the standing power unit and the main power unit to generate a reference level according to the voltage output by the standing power unit, and obtain A power signal from the standby power unit, after comparing the reference level with the power signal, outputting an activation signal to the main power unit to drive the alternating current to be converted into direct current. Therefore, as long as the power supply is connected to the external power supply source, the present invention can obtain the power signal provided by the standing power, and then actively convert it into a start signal, so that the main power unit can supply power, because the standing power unit is In the off state, it is still responsible for providing the stable standby power of the motherboard, and it will not be able to start the battery due to insufficient battery storage or setting error in the traditional automatic startup mode. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description and technical contents of the present invention will now be described with reference to the following drawings: FIG. 1 is a block diagram showing a circuit block of a preferred embodiment of the present invention. :-The seeding type switch-off circuit 2G is electrically connected to a power supply 10 of the money exchange, and the power supply unit 1 receives AC power from the external power supply source 3, and at least includes a normal connection to convert the alternating current into The standing power unit u of the direct current, and the alternating current power into the money power in the power-on state, the main power unit 12 is operated by the electronic device, and the power is determined, and the power unit is disposed in the standby power unit u and the main power unit. Between the ^, according to the voltage of the standing power unit 11 touch-and-match, and from the power unit of the read power unit ^ to be compared with the power 待, the output - start signal to the The main power is 7L I2' early, and the AC motor is a straight wire. The wire wrinkle can be independently disposed outside the power supply 10 (as shown in Figure 2) (as shown in Figure 2). X is placed in e-hai. Please refer to Figure 3. 』 is a preferred embodiment of the active start determination circuit of the present invention, and the circuit schematic diagram 'the start determination circuit 2G is disposed between the main power list S12 and the standing power list 7G 11' The reference device compares the comparison circuit with the power city. The start 6 200931767 'the dynamic determination circuit 20 and the main power unit 12 are provided with an opening and closing circuit 22, and the opening and closing circuit 22 receives the startup signal and converts it into a Turning on and off the signal to activate the main power unit 12. When the power supply 10 is electrically connected to an external power supply source 3 (such as a socket, etc.), the standing power unit u converts the alternating current into direct current 'and provides a stable standing voltage The start determining circuit 20 of the present invention obtains the reference level by means of the standing voltage through the voltage divider of the resistor, and the power signal indicating the power input is obtained by the standing power unit 11, the power signal and the reference level. Minute Do not enter the startup determination circuit 20. In this embodiment, between the startup determination circuit 2 and the opening and closing circuit 22, a switching signal may be provided to trigger the opening and closing circuit 22 to output the opening and closing signal. The switching unit 21, when the power signal is higher than the reference level, the start determining circuit 20 outputs the start signal to the converting unit 21, thereby converting the starting signal to trigger the opening and closing circuit 22, the opening and closing circuit 22 may include a switching element such as an MOS transistor, and the opening and closing circuit 22 receives the activation signal and converts the switching signal to the main power unit 12, so that the main power unit performs AC/DC conversion and supplies the electronic The power required for the operation of the device. In order to control the time when the main power unit 12 is activated, the start determination circuit 2 is further electrically connected to the timing control circuit 23' to output the timing of the start signal. In this embodiment, The timing control circuit 23 is disposed between the standby power unit 11 and the startup determination circuit 2A, and when the timing control circuit 23 obtains power from the standing power unit u No., the timing control: the circuit 23 determines the boosting rate of the power signal until the power signal is greater than the reference level in the startup determining circuit 2A, and the startup determining circuit 20 outputs the starting signal to the start signal. The closed circuit 22 is triggered by the start signal to generate the open/close signal to the main power unit 12. In addition, the timing control circuit 23 includes at least one set of capacitor groups 231 for charging the power signal. Discharge, when the power supply 10 is just powered, the power signal generated by the standing power unit u enters the timing control circuit 23, until the capacitor group 231 reaches saturation, the power signal is transmitted to the start determination. The circuit 20 is compared with the reference level. In addition, the timing control circuit 23 also includes a variable power P and 232, and the timing control circuit 23 determines the power control circuit by adjusting the magnitude of the resistor. After the turn _ start the lying circuit to generate the driving signal time, and even start the main power unit 19 when the power supply 10 is connected to the external power supply source 3, where ^ regular power The element 11 directly converts the alternating current into the direct current by the external power supply source 30, and provides a constant power of +5V determined by the 200931767, and the standby power is used as the power signal, and the power signal can directly enter the startup determining circuit 20, And comparing with the reference level obtained by the startup determining circuit 2, after the startup determining circuit 20 is greater than the reference level, generating an activation signal to the main power unit 12 to activate the main power unit 12 Perform AC/DC conversion. In addition, the power signal provided by the standing power unit 11 can first enter the timing control circuit 23, and the timing control circuit 23 regulates the comparison time of the power signal to be greater than the reference level to regulate the timing of the overall startup. Furthermore, the activation signal generated by the startup determination circuit 20 can trigger the opening and closing circuit 22 to output an opening and closing signal to the main power unit Π, so that the main power unit 12 performs AC/DC conversion.
知上所述，當電源供應器1〇接電後，本發明直接取得常襟電力單元U 轉換交流騎產生之電力城，該電力喊經職啟動躺電路如後，主 動轉換為一啟動訊號傳送至該主電力單元12中，以驅動該主電力單元ο 進行交錢電觀，作為電子設賴機運作的電力。她讀賴機方法， 本$明不f要躲自個者提供-紐峨，彳制时備電力啟動主電 力單7G 12 ’只要常備電力單元u取得電力驗，即可透職動判斷電路 2〇主動驅使該主電力單元12進行運作。另外，相較於目前的自動開機流程， =須預先調整BIOS巾關於電源祕管_設定，才驗料池驅動主電力 :元進行供電，本發明直接取用常備電力單元u所產生之電力訊號作為啟 觸發源，只要電源供應g 1〇接電狀況下，該常備電力單元u即可持 提供常備電力’賴更為方便且穩^^目此本發賴具進步性及符合 發明專利之要件，爰依法提出申請，析釣局早曰賜准專利，實感德便。 以上已將本發日臟-詳細制，惟以上所述者，僅爲本發明之—較佳 I施例而已，非練林發明實狀範圍，驗本發明帽範_作之 等變化與修飾等，應仍屬本發明之專利涵蓋範圍内。 200931767 【圖式簡單說明】 圖1，係本發明主動式啟動判斷電路較佳實施例之電路方塊示意圖 圖2，係本發明主動式啟動判斷電路設置於電源供應器内之電路方塊示意圖 圖3，係本發明主動式啟動判斷電路較佳實施例之實施電路示意圖 【主要元件符號說明】 10 .............電源供應器 11 .............常備電力單元 12 .............主電力單元 20 .............啟動判斷電路As described above, when the power supply unit 1 is connected to electricity, the present invention directly obtains the power city generated by the common power unit U conversion AC riding, and the power is called to start the lying circuit, and then actively converts to an activation signal transmission. To the main power unit 12, the main power unit ο is driven to perform power exchange as an electric power operated by the electronic device. She read the Lai machine method, this $ 明不f want to hide from the individual to provide - New Zealand, the system to prepare the power to start the main power list 7G 12 'As long as the standing power unit u get the power test, you can pass the job judgment circuit 2 The 〇 actively drives the main power unit 12 to operate. In addition, compared with the current automatic boot process, the pre-adjustment of the BIOS towel on the power supply _ setting, the sample pool drive main power: the power supply, the invention directly uses the power signal generated by the standing power unit u As a trigger source, as long as the power supply g 1 〇 is connected to the power, the standing power unit u can provide the standing power, which is more convenient and stable, and the requirements of the invention are progressive and conform to the requirements of the invention patent.爰 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出The above-mentioned filth-detailed system has been made, except that the above is only the preferred embodiment of the present invention, and the non-Linlin invention is in the scope of the actual invention, and the change and modification of the present invention. Etc., should still be within the scope of the patent of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic block diagram of a preferred embodiment of the active start determination circuit of the present invention. FIG. 2 is a schematic diagram of a circuit block diagram of the active start determination circuit of the present invention disposed in a power supply. The schematic diagram of the implementation circuit of the preferred embodiment of the active start determination circuit of the present invention [the main component symbol description] 10 . . . ... power supply 11 .......... ...Standby power unit 12 .............Main power unit 20 .............Start judgment circuit
21 .............轉換單元 22 .............啟閉電路 23 .............時序控制電路 231 .............電容群 232 .............可變電阻 30.............電力供應源21 .............conversion unit 22 .............opening and closing circuit 23 .......... timing control circuit 231 .............Capacitor group 232 .............Variable resistor 30.............Power supply source
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