201133226 六、發明說明： . 【發明所屬之技術領域】 [0001] —種改善待機耗能的電源電路，特別是透過一電源啟閉 訊號決定是否連接一虛擬負載，而在待機狀態下避免虛 擬負載消耗功率的電源。 [先前技術] [0002] 現今使用於電腦中的電源供應器普遍的支援ATX主機板架 構’ ATX主機板架構在電源上的改革在於電腦的開機按紐 〇 不直接連接電源供應器’而是將該開機按鈕接到主機板 上’再由主機板喚醒待機中的電源供應器，使該電源供 應器提供電腦配備所需的運作電力，更進一步的，Ατχ主 機板架構可實現遠端開/關機（Rem〇te 〇n/OFF)的功At 。為了要配合ATX主機板架構，電源供應器必需在電腦未 開機時提供一常備電力供應電源供應器本體以及主機板 處於待機狀態，當開機按鈕或遠端開機訊號觸發該主機 板時，該主機板再透過一電源啟動訊號作s 笊 〇 幻觸發該電源供應器供應一主輸出電力，以驅動電腦 所有配備運作。為了達到此功能，支援ATX主機板架構的 電源供應器都具備了提供該常備電力的-常備電力系統 以及提供社輸出電力的主電力緖，令該電·應器 取得外部電力後即輸出該常備電力。 剛❿該電源供應器的更具體運作如m所示，該電源、 大致上包含—濾波單元11、-整流單元12、-常備電力 系統2、—功因校正電路3、-主電力系統4。其中心 單Toll連接―電力源8取得_輸入電力，該常備電力=統 099109311 表單編號A0101 第3頁/共14頁 0992016559-0 201133226 2取得經過濾波與整流後的輸入電力，並經過轉換而輸出 一常備電力91。另一方面，在該整流單元12後端另連接 該功因校正電路3取得濾波與整流後的輸入電力，該功因 校正電路3透過改變電流與電壓的波形而改善電力的功率 因數，經過該功因校正電路3後輸出之電力定義為一調變201133226 VI. Description of the invention: [Technical field of invention] [0001] A power supply circuit for improving standby power consumption, in particular, whether a virtual load is connected through a power supply opening and closing signal, and avoiding a virtual load in a standby state Power source that consumes power. [Prior Art] [0002] The power supply used in computers today generally supports the ATX motherboard architecture. 'The ATX motherboard architecture is reformed on the power supply because the computer's boot button is not directly connected to the power supply'. The power button is connected to the power supply board on the motherboard, and then the power supply is provided by the motherboard to enable the power supply to provide the required operating power of the computer. Further, the motherboard architecture can realize remote on/off. (Rem〇te 〇n/OFF) the work At. In order to cooperate with the ATX motherboard architecture, the power supply must provide a standing power supply to the power supply body when the computer is not powered on, and the motherboard is in a standby state. When the power button or the remote power-on signal triggers the motherboard, the motherboard Then, through a power-on signal, the power supply supplies a main output power to drive all the computer equipment. In order to achieve this function, the power supply supporting the ATX motherboard architecture has a standing power system that provides the standing power and a main power supply that provides the output power of the social power, so that the power supply device outputs the standby power after receiving the external power. electric power. Just as the more specific operation of the power supply is as indicated by m, the power supply substantially comprises a filtering unit 11, a rectifying unit 12, a standing power system 2, a power factor correcting circuit 3, and a main power system 4. The center single Toll connection - power source 8 gets _ input power, the standing power = system 099109311 form number A0101 page 3 / total 14 page 0992016559-0 201133226 2 obtain filtered and rectified input power, and output through conversion A standing power of 91. On the other hand, at the rear end of the rectifying unit 12, the power factor correction circuit 3 is connected to obtain filtered and rectified input power, and the power factor correcting circuit 3 improves the power factor of the power by changing the waveform of the current and the voltage. The power output after the power factor correction circuit 3 is defined as a modulation
I 電力，該調變電力直接導入該主電力系統4以轉換為一主 輸出電力93。然而，該功因校正電路3與該主電力系統4 還需受一控制單元5所驅動（也有可能是功因校正電路3 與主電力系統4分別具有獨立的控制單元），而控制單元 5包含了微控制晶片或可程式化編碼器的數位元件作為控 制、驅動用途，而該些數位元件必須取得偏壓電力才可 運作，因此該控制單元5是否啟動取決於是否取得該常備 電力91以及是否受一電源啟動訊號92 (Ps on/off訊號 )觸發啟動。該控制單元5尚未啟動時，該功因校正電路 3與該主電力系統4無法啟動，形成該主電力系統4停止運 作、僅常備電力系統2運作的待機狀態。在使用者按下電 腦主機上的開機按鈕後，會產生一電訊號至該電腦主機 内的主機板，該主機板再產生一電源啟動訊號92 (Ps on/ofi訊號）送至電源供應器中以觸發該控制單元5，此 時該控制單元5則需要取得該常備電力91而啟動，進一步 驅動該功因校正電路3與主電力系統4運作。 [0004] 然而常備電力系統2在待機狀態中若無任何負載，在該控 制單元5啟動時，對該常備電力系統2而言瞬間增加負載 ，在該常備電力系統2尚未調整輸出功率之前，造成控制 單元5取得的電壓過低，可能造成控制單元5無法啟動。 099109311 表單編號A0101 第4頁/共14頁 0992016559-0 201133226 為了確保所有依靠該常備電力91運作的數位元件可正常 啟動，該常備電、力系統2的輸出端併接了一虛擬負載6， 透過該虛擬負載6常態的提高該常備電力系統2的電流， ❹ [0005] [0006] Ο 因此該控制單元5啟動時所造成的電壓下降不致於影響控 制單元5的啟動。但，常態的連接該虛擬負載6造成常態 的功率虛耗。現今各廠牌電源供應器不斷朝節能的方向 努力，並且電源供舄器除了要通過「80PLUS」的認證以 夕卜，更細分為「80PLUS」金、銀、銅多個等級。因此， 前述虛擬負載6常態耗能的情況必須改善，以達到節能的 目的。 【發明内容】 由於習知電源供應器中必須應用虛擬負載確保控制單元 與主電力系統啟動順利，但同時帶來造成常態耗能的缺 點。本案的目的在於確保該控制單元與主電力系統順利 啟動的前提下，改善該虛擬負載常態耗能的問題。 本案為一種改善待機耗能的電源電路，係定義一電源供 應器具有一主電力系統以及一常備電力系統，其中該常 備電力系統取得一輸入電力後即輸出一常備電力。而該 主電力系統是否運作則受控於一控制單元，該控制單元 必須連接該常備電力系統的輸出端取得常備電力以獲得 所需功率，且該控制單元需接收一電源啟閉訊號而觸發 啟動，該控制單元啟動後才可控制該主電力系統供應一 主輸出電力。而該電源供應器更包括一開關單元，該開 關單元之兩端分別連接輸出該常備電力的電力線路以及 一虛擬負載，並且該開關單元的導通與否受控於該電源 099109311 .表單編號Α0101 第5頁/共14頁 0992016559-0 201133226 啟閉訊號，該開關單元在未受該電源啟閉訊號觸發的電 源待機狀態下呈截止狀態，該開關單元在受該電源啟閉 訊號觸發後導通，令該虛擬負載與該常備電力系統電性 連接。 [0007] 因此，在該電源供應器處於待機狀態時，在該電腦主機 關機（電源供應器待機狀態）時，該開關單元截止令該 常備電力系統與該虛擬負載之間視同獨立、未連接之狀 態，因此該虛擬負載不會造成任何損耗。該電腦主機開 機（電源供應器完全啟動）時，該開關單元導通，使該 | 虛擬負載電性連接於該常備電力系統，達到確保再啟動 時電壓足以供應控制單元啟動的目的。並且再次關機時 ，該開關單元再次截止以分灕該虛擬負載與常備電力系 統，而達到節能的目的。 【實施方式】 [0008] 請參閱圖2，本案為一種改善待機耗能的電源電路，係用 於支援ATX主機板架構的一電源供應器，該電源供應器包 括了一濾波單元11、一整流單元12、一常備電力系統2、 一功因校正電路3、一主電力系統4以及一控制單元5。其 中該濾波單元11連接一電力源8而取得一輸入電力並濾波 ，該輸入電力經過該濾波單元11後再經過該整流單元12 將其轉換為直流電形態。該常備電力系統2取得經過整流 後的輸入電力，該常備電力系統2係常態的將該輸入電力 調變轉換為一常備電力91，該常備電力91係用於供應該 電源供應器以及其所驅動的電腦主機板（圖中未示）處 於待機狀態，並且可接受遠端開/關機（Remote on/off 099109311 表單編號A0101 第6頁/共14頁 0992016559-0 201133226 )的命令而啟動該電腦主機板（圖中未示）以及 供應器所連接的電腦配備（圖中未示）進人卫作狀/ 該電源、供應器中亦包含了許多數位元件（如積體電:等 凡件）需要利用該常備電力91提供偏㈣壓， Ο 辑備電力91提供偏壓電壓的包括該控制單元5 早疋5至少用於控制該主電力系統4，該控制單元5亦;— 併控制該功因校正電路3，或者該功因校正電路3可具有— =的控制電路，但該功因校正電路3是否獨立控制並非 本案的重點，並且該功因校正電路3是否具有獨立的控制 電路都可適用本案的技術特徵，因此在圖〇所㈣利 =控制單元5同時電性連接該主電力系統4與該功因校正 電路3作為示意之態樣。該功因校正電路㈣樣連接整土 =?Γ取得直流的電力，該功因校正電路3則二 改變電流與電壓的波形而改善電力的功率因數，婉料I power, which is directly introduced into the main power system 4 to be converted into a main output power 93. However, the power factor correction circuit 3 and the main power system 4 are also driven by a control unit 5 (it is also possible that the power factor correction circuit 3 and the main power system 4 respectively have independent control units), and the control unit 5 includes The digital control chip or the digital component of the programmable encoder is used for control and driving purposes, and the digital components must obtain bias power to operate, so whether the control unit 5 is activated depends on whether the standing power 91 is obtained and whether It is triggered by a power-on signal 92 (Ps on/off signal). When the control unit 5 has not been activated, the power factor correction circuit 3 and the main power system 4 cannot be started, and a standby state in which the main power system 4 stops operating and only the standby power system 2 operates is formed. After the user presses the power button on the host computer, a signal is generated to the motherboard in the host computer, and the motherboard generates a power activation signal 92 (Ps on/ofi signal) to be sent to the power supply. In order to trigger the control unit 5, the control unit 5 needs to acquire the standing power 91 to start, and further drive the power factor correction circuit 3 to operate with the main power system 4. [0004] However, if the standby power system 2 has no load in the standby state, when the control unit 5 is started, the load is instantaneously increased for the standby power system 2, before the standby power system 2 has adjusted the output power, resulting in The voltage obtained by the control unit 5 is too low, which may cause the control unit 5 to fail to start. 099109311 Form No. A0101 Page 4 of 14 0992016559-0 201133226 In order to ensure that all digital components operating on the standing power 91 can be started normally, the output of the standing electric and force system 2 is connected to a virtual load 6 through The virtual load 6 normally increases the current of the standby power system 2, [0005] [0006] Therefore, the voltage drop caused by the startup of the control unit 5 does not affect the activation of the control unit 5. However, the normal connection of the virtual load 6 causes a normal power consumption. Nowadays, the power supply of each brand has been working hard in the direction of energy saving, and the power supply device is divided into "80PLUS" gold, silver and copper grades in addition to the "80PLUS" certification. Therefore, the situation in which the aforementioned virtual load 6 normally consumes energy must be improved to achieve energy saving. SUMMARY OF THE INVENTION The virtual load must be applied in the conventional power supply to ensure that the control unit and the main power system start smoothly, but at the same time, the disadvantage of causing normal energy consumption is brought about. The purpose of this case is to improve the normal energy consumption of the virtual load under the premise of ensuring the smooth start of the control unit and the main power system. The present invention is a power supply circuit for improving standby power consumption, which defines a power supply device having a main power system and a standing power system, wherein the standby power system outputs a standing power after obtaining an input power. Whether the main power system operates or not is controlled by a control unit, the control unit must be connected to the output of the standing power system to obtain the standing power to obtain the required power, and the control unit needs to receive a power opening and closing signal to trigger the start. After the control unit is started, the main power system can be controlled to supply a main output power. The power supply further includes a switch unit, the two ends of the switch unit are respectively connected to the power line for outputting the standby power and a virtual load, and the turn-on or not of the switch unit is controlled by the power source 099109311. Form No. Α0101 5 pages/14 pages 0992016559-0 201133226 The opening and closing signal, the switch unit is turned off in the power standby state triggered by the power supply opening and closing signal, and the switch unit is turned on after being triggered by the power supply opening and closing signal, so that The virtual load is electrically connected to the standing power system. [0007] Therefore, when the power supply is in a standby state, when the computer mainframe is powered off (power supply standby state), the switch unit is turned off to make the standby power system and the virtual load seem to be independent and unconnected. The state, so the virtual load does not cause any loss. When the computer main unit is started (the power supply is fully started), the switch unit is turned on, so that the | virtual load is electrically connected to the standing power system, so as to ensure that the voltage is sufficient to supply the control unit to start when restarting. And when the power is turned off again, the switch unit is turned off again to divide the virtual load and the standing power system, thereby achieving the purpose of energy saving. [Embodiment] [0008] Please refer to FIG. 2, which is a power supply circuit for improving standby power consumption, and is used for supporting a power supply of an ATX motherboard structure, the power supply includes a filtering unit 11 and a rectification The unit 12, a standing power system 2, a power factor correction circuit 3, a main power system 4, and a control unit 5. The filtering unit 11 is connected to a power source 8 to obtain an input power and filtered. The input power passes through the filtering unit 11 and is converted into a direct current mode by the rectifying unit 12. The standing power system 2 obtains the rectified input power, and the standing power system 2 converts the input power into a normal power 91, which is used to supply the power supply and the drive thereof. The computer motherboard (not shown) is in the standby state, and the remote start/stop (Remote on/off 099109311 Form No. A0101 Page 6 / 14 pages 0992016559-0 201133226) can be started to start the host computer. The board (not shown) and the computer connected to the supplier (not shown) enter the guardian / the power supply and the supplier also contain many digital components (such as integrated power: everything) The auxiliary power 91 is used to provide a bias voltage, and the power supply 91 provides a bias voltage. The control unit 5 is used to control at least the main power system 4, and the control unit 5 also controls the power factor. The correction circuit 3, or the power factor correction circuit 3, may have a control circuit of -=, but whether the power factor correction circuit 3 is independently controlled is not the focus of the present case, and whether the power factor correction circuit 3 has independent control The circuit can be applied to the technical features of the present invention. Therefore, the control unit 5 is electrically connected to the main power system 4 and the power factor correction circuit 3 as a schematic aspect. The power factor correction circuit (4) connects the whole soil = ? Γ to obtain DC power, and the power factor correction circuit 3 changes the current and voltage waveforms to improve the power factor of the power.
G =因校正電路3後輸出之電力定義為—調變電力，該調變 ^力直接導人該主電力系統4以轉換為—主輪出電力93。 =而’在電源供應器與電腦主機板處於待機狀態時，該 ^制單元5尚未啟動’因此該功因校正電路3與該主電力 系統4亦無法運作，無法產生魅輪㈣力93供應電腦主 機板（圖中未示）以及其他電腦配傷（圖中未示）工作 所需功率。當電腦的開機按紐被按下後將產生一電訊號 Γ該電腦主機板（圖中未示），該電腦主機板（圖中 不）則產生一電源啟閉訊號9UPS 〇n/〇ff)，當該 ^制單元5取得料備電力91時受該電岐_麟觸發 可啟動，進—步由該控制單元5驅動該功因校正電路3 與主電力系統4工作，該主雪六 099109311 表單編號麵第7頁/共,頁統4輪出的主輸出電力 尺 ΑΠΛΟί 201133226 93即驅動複數電腦配備運作。然而，為了確保該控制單 元5啟動時不會發生電壓不足的問題，該常備電力系統2 連接了一開關單元7，該開關單元7之兩端分別連接輸出 該常備電力91的電力線路以及一虛擬負載6，並且該開關 單元7的導通與否受控於該電源啟閉訊號92，該開關單元 7在未受該電源啟閉訊號92觸發的電源待機狀態下呈截止 狀態，該開關單元7在受該電源啟閉訊號92觸發後導通令 該常備電力系統2與該虛擬負載6電性連接。因此，在該 電源供應器處於待機狀態時，在該電腦主機關機（電源 供應器待機狀態）時，該開關單元7截止令該常備電力系 統2與該虛擬負載6之間視同獨立、未連接之狀態，因此 該虛擬負載6不會造成任何撗耗。該電腦主機開機（電源 供應器完全啟動）時，該開關單元7導通，使該虛擬負載 6電性連接於該常備電力系統2，達到確保在啟動時電壓 足以供應控制單元5啟動的目的。並且再次關機時，該開 關單元7再次截止以分離該虛擬負載6與常備電力系統2， 而達到節能的目的。 [0009] 請參閱圖3，圖3所示為該虛擬負載6與該開關單元7的一 可實施的範例，其中，該常備電力系統2輸出該常備電力 91的電力線路上可連接一金屬氧化物半導體場效電晶體 (MOSFET) 70，而該金屬氧化物半導體場效電晶體70的 汲極（drain)與源極（source)分別連接於輸出該常 備電力91的電力線路以及該虛擬負載6。而該虛擬負載6 則利用複數電阻器61並聯形成一電阻性負載，並且該複 數電阻器61連接一接地點62。該金屬氧化物半導體場效 099109311 表單編號A0101 第8頁/共14頁 0992016559-0 201133226 [0010] Ο [0011] ο [0012] [0013] [0014] [0015] [0016] 電晶體70的閘極（gate)則導接該電源啟閉訊號92，且 讓該電源啟閉訊號92觸發該控制單元5啟動時，同步令該 金屬氧化物半導體場效電晶體（M〇SFET) 7〇導通（on) 。反之，在關閉該控制單元5時同步令該金屬氧化物半導 體場效電晶體（M0SFET) 70截止（0ff )。藉此可確保 该電源供應器在待機狀態時，該虛擬負載6不會消耗任何 功率，達到節能的效果。 雖然本發明已以較佳實施例揭露如上，然其並非用以限 定本發明，任何熟習此技藝者，在不脫離本發明之精神 和範圍内，而所作之些許更動與潤飾，皆應涵蓋於本發 明中，因此本發明之保護範圍當視後附之申請專利範圍 所界定者為準。 综上所述，本發明較習知之創作增進上述功效’應已充 分符合新穎性及進步性之法定創新專利要件，爰依法提 出申請’懇請責局核准本件,明專利中請案，以勵創作 ，至感德便。 【圖式簡單說明】 圖1為習知電路之示意圖。 圖2為本案電路架構之示意圖。 圖3為該開關單元與虛擬負載的實施態樣示意圖。 【主要元件符號說明】 11 ......濾波單元 12 ......整流單元 099109311G = The power outputted after the correction circuit 3 is defined as the modulated power, which directly directs the main power system 4 to be converted into the main wheel output power 93. = and 'when the power supply and the computer motherboard are in the standby state, the control unit 5 has not been activated', so the power correction circuit 3 and the main power system 4 cannot operate, and the charm wheel (four) force 93 cannot be supplied to the computer. Power required for the motherboard (not shown) and other computer mismatches (not shown). When the computer's power-on button is pressed, a computer signal (not shown) will be generated. The computer motherboard (not shown) generates a power-on signal 9UPS 〇n/〇ff) When the unit 5 obtains the power supply 91, it can be activated by the power_lin trigger, and the control unit 5 drives the power correction circuit 3 to work with the main power system 4, the main snow six 099109311 Form number face page 7 / total, page 4 out of the main output power meter ΑΠΛΟ ί 201133226 93 that drive multiple computers equipped with operations. However, in order to ensure that the voltage shortage does not occur when the control unit 5 is started, the standby power system 2 is connected to a switch unit 7, and the two ends of the switch unit 7 are respectively connected to the power line for outputting the standing power 91 and a virtual The load 6 is controlled, and the switch unit 7 is turned on or off. The switch unit 7 is in an off state when the power supply standby state is not triggered by the power on/off signal 92. The switch unit 7 is in the state of being turned off. After being triggered by the power on/off signal 92, the standby power system 2 is electrically connected to the virtual load 6. Therefore, when the power supply is in the standby state, when the computer main body is turned off (the power supply standby state), the switch unit 7 is turned off to make the standing power system 2 and the virtual load 6 seem to be independent and not connected. The state, so the virtual load 6 does not cause any loss. When the computer main unit is powered on (the power supply is fully started), the switch unit 7 is turned on, so that the virtual load 6 is electrically connected to the standing power system 2, so as to ensure that the voltage is sufficient to supply the control unit 5 at startup. And when the power is turned off again, the switching unit 7 is turned off again to separate the virtual load 6 from the standing power system 2, thereby achieving the purpose of energy saving. Referring to FIG. 3, FIG. 3 shows an example of the implementation of the virtual load 6 and the switch unit 7. The standby power system 2 outputs a common metal oxide to the power line. A semiconductor field effect transistor (MOSFET) 70, and a drain and a source of the metal oxide semiconductor field effect transistor 70 are respectively connected to a power line outputting the standing power 91 and the dummy load 6. The dummy load 6 is connected in parallel by a complex resistor 61 to form a resistive load, and the complex resistor 61 is connected to a ground point 62. The metal oxide semiconductor field effect 099109311 Form No. A0101 Page 8 / 14 pages 0992016559-0 201133226 [0010] [0012] [0014] [0016] [0016] Gate of the transistor 70 The gate is connected to the power-on/off signal 92, and the power-on/off signal 92 is triggered to trigger the control unit 5 to start, and the metal oxide semiconductor field effect transistor (M〇SFET) 7 is turned on ( On). Conversely, the metal oxide semiconductor field effect transistor (MOSFET) 70 is turned off (0ff) when the control unit 5 is turned off. This ensures that the virtual load 6 does not consume any power when the power supply is in the standby state, achieving energy saving effects. While the invention has been described above by way of a preferred embodiment, it is not intended to limit the invention, and any modifications and modifications may be made without departing from the spirit and scope of the invention. In the present invention, the scope of the present invention is therefore defined by the scope of the appended claims. In summary, the present invention enhances the above-mentioned functions by customary creations, which should fully comply with the statutory innovation patent requirements of novelty and progressiveness, and submit an application in accordance with the law's request for the approval of the article, the patent application, and the creation of the patent. To the sense of virtue. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram of a conventional circuit. Figure 2 is a schematic diagram of the circuit architecture of the present invention. FIG. 3 is a schematic diagram of an embodiment of the switch unit and the virtual load. [Main component symbol description] 11 ...... Filter unit 12 ...... Rectifier unit 099109311
表單編號A010I 第9頁/共14頁 0992016559-0 201133226 [0017] 2......常備電力系統 [0018] 3......功因校正電路 [0019] 4......主電力系統 [0020] 5......控制單元 [0021] 6......虛擬負載 [0022] 61......電阻 [0023] 62......接地點 [0024] 7......開關單元 [0025] 70......金屬氧化物半導體場效電晶體 [0026] 8......電力源 [0027] 91......常備電力 [0028] 92......電源啟閉訊號 [0029] 93......主輸出電力 0992016559-0 099109311 表單編號A0101 第10頁/共14頁Form No. A010I Page 9 of 14 0992016559-0 201133226 [0017] 2...Standby Power System [0018] 3... Power Factor Correction Circuit [0019] 4..... Main Power System [0020] 5...Control Unit [0021] 6...Virtual Load [0022] 61...Resistance [0023] 62... Location [0024] 7... Switching unit [0025] 70... Metal oxide semiconductor field effect transistor [0026] 8... Power source [0027] 91... ...Standby power [0028] 92... Power on/off signal [0029] 93... Main output power 0992016559-0 099109311 Form number A0101 Page 10 of 14