TWI411911B - Improve the standby power consumption of the power circuit - Google Patents
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Abstract
Description
一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。A power supply circuit for improving standby power consumption, in particular, determining whether to connect a virtual load through a power supply opening and closing signal, and avoiding power consumption of a virtual load in a standby state.
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鈕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，ATX主機板架構可實現遠端開/關機（Remote ON/OFF）的功能。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（Ps on/off訊號）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一常備電力系統以及提供該主輸出電力的主電力系統，令該電源供應器取得外部電力後即輸出該常備電力。The power supply used in computers today generally supports the ATX motherboard architecture. The reform of the ATX motherboard architecture on the power supply is that the computer's power button is not directly connected to the power supply, but the power button is connected to the motherboard. The motherboard then wakes up the standby power supply so that the power supply provides the required operating power for the computer. Further, the ATX motherboard architecture enables remote ON/OFF. 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, a power-on signal (Ps on/off signal) is used to trigger the power supply to supply 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 system that provides the main output power, so that the power supply outputs the external power. electric power.
而該電源供應器的更具體運作如圖1所示，該電源供應器大致上包含一濾波單元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。其中該濾波單元11連接一電力源8取得一輸入電力，該常備電力系統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內的主機板，該主機板再產生一電源啟動訊號92（Ps on/off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。The power supply of the power supply is substantially as shown in FIG. . The filtering unit 11 is connected to a power source 8 to obtain an input power, and the standing power system 2 obtains the filtered and rectified input power, and outputs a standing power 91 after being converted. 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 modulated power that 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/off 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.
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。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，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，並且電源供應器除了要通過「80PLUS」的認證以外，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。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, and the control unit 5 is caused before the standby power system 2 has adjusted the output power. The obtained voltage is too low, which may cause the control unit 5 to fail to start. In order to ensure that all the digital components operating by the standing power 91 can be started normally, the output of the standing power system 2 is connected to a virtual load 6 through which the current of the standby power system 2 is normally increased, so The voltage drop caused by the start 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, all brands of power supplies are constantly striving for energy saving, and the power supply 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 the purpose of energy saving.
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。Since 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, it has the disadvantage of causing normal energy consumption. 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.
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。The present invention is a power supply circuit for improving standby power consumption. It is defined that a power supply has a main power system and a standing power system, wherein the standby power system outputs a constant 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 conduction of the switch unit is controlled by the power on/off signal, the switch The unit is turned off in a power standby state that is not triggered by the power-on/off signal, and the switch unit is turned on after being triggered by the power-on/off signal, so that the virtual load is electrically connected to the standing power system.
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離該虛擬負載與常備電力系統，而達到節能的目的。Therefore, when the power supply is in the standby state, when the computer mainframe is powered off (the 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. Therefore the virtual load does not cause any loss. When the computer host is powered on (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 separate the virtual load from the standing power system, thereby achieving the purpose of energy saving.
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）的命令而啟動該電腦主機板（圖中未示）以及該電源供應器所連接的電腦配備（圖中未示）進入工作狀態。該電源供應器中亦包含了許多數位元件（如積體電路等元件）需要利用該常備電力91提供偏壓電壓，其中需要該常備電力91提供偏壓電壓的包括該控制單元5，該控制單元5至少用於控制該主電力系統4，該控制單元5亦可一併控制該功因校正電路3，或者該功因校正電路3可具有獨立的控制電路，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2中所示係利用該控制單元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3同樣連接整流單元12後端而取得直流的電力，該功因校正電路3則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，在電源供應器與電腦主機板處於待機狀態時，該控制單元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，無法產生該主輸出電力93供應電腦主機板（圖中未示）以及其他電腦配備（圖中未示）工作所需功率。當電腦的開機按鈕被按下後將產生一電訊號觸發該電腦主機板（圖中未示），該電腦主機板（圖中未示）則產生一電源啟閉訊號92（Ps on/off），當該控制單元5取得該常備電力91時受該電源啟閉訊號92觸發才可啟動，進一步由該控制單元5驅動該功因校正電路3與主電力系統4工作，該主電力系統4輸出的主輸出電力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不會造成任何損耗。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。Referring to FIG. 2, the present invention 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, a rectifying unit 12, and 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 is 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 a standby state, and can accept a remote on/off command to start the computer motherboard (not shown) and the power supply is connected. The computer is equipped (not shown) to enter the working state. The power supply also includes a plurality of digital components (such as components such as integrated circuits) that need to provide a bias voltage by using the standing power 91. The control unit 5 is required to provide the bias voltage. 5 at least for controlling the main power system 4, the control unit 5 may also control the power factor correction circuit 3 together, or the power factor correction circuit 3 may have an independent control circuit, but whether the power factor correction circuit 3 is independent The control is not the focus of the present case, and whether the power correction circuit 3 has an independent control 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 at the same time as shown in FIG. The power factor correction circuit 3 serves as a schematic aspect. The power factor correction circuit 3 is also connected to the rear end of the rectifying unit 12 to obtain DC power. The power factor correction circuit 3 improves the power factor of the power by changing the waveform of the current and the voltage, and outputs the power factor correction circuit 3. Power is defined as a modulated power that is directly directed into the primary power system 4 for conversion to a primary output power 93. However, 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 main output power 93 cannot be generated to supply the computer motherboard. The power required for operation (not shown) and other computer equipment (not shown). When the computer's power-on button is pressed, a computer signal will be generated to trigger the computer motherboard (not shown). The computer motherboard (not shown) generates a power-on/off signal 92 (Ps on/off). When the control unit 5 obtains the standing power 91, it can be activated by being triggered by the power source opening and closing signal 92, and further, the control unit 5 drives the power factor correction circuit 3 to work with the main power system 4, and the main power system 4 outputs The main output power 93 drives the computer to operate. 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, therefore, 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 to start when starting. And when the power is turned off again, the switch unit 7 is turned off again to separate the virtual load 6 from the standby power system 2, thereby achieving the purpose of energy saving.
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（MOSFET）70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（MOSFET）70截止（off）。藉此可確保該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。Referring to FIG. 3, FIG. 3 shows an implementation example of the virtual load 6 and the switch unit 7. The standby power system 2 outputs a common oxide power field to which a metal oxide semiconductor field effect can be connected. A transistor (MOSFET) 70, and a drain and a source of the MOSFET 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 gate of the metal oxide semiconductor field effect transistor 70 is connected to the power supply opening and closing signal 92, and the power supply opening and closing signal 92 is triggered to trigger the control unit 5 to start the synchronization of the metal oxide semiconductor field. The effect transistor (MOSFET) 70 is turned "on". Conversely, the metal oxide semiconductor field effect transistor (MOSFET) 70 is turned off when the control unit 5 is turned off. Thereby, it can be ensured that the virtual load 6 does not consume any power when the power supply is in the standby state, and the energy saving effect is achieved.
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內，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。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.
綜上所述，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 貴局核准本件發明專利申請案，以勵創作，至感德便。In summary, the present invention enhances the above-mentioned effects in comparison with the conventional creations, and should fully comply with the novelty and progressive statutory innovation patent requirements, and submit an application according to law, and invites you to approve the invention patent application to encourage creation. Feeling the virtues.
11‧‧‧濾波單元11‧‧‧Filter unit
12‧‧‧整流單元12‧‧‧Rectifier unit
2‧‧‧常備電力系統2‧‧‧Standing power system
3‧‧‧功因校正電路3‧‧‧Power factor correction circuit
4‧‧‧主電力系統4‧‧‧Main power system
5‧‧‧控制單元5‧‧‧Control unit
6‧‧‧虛擬負載6‧‧‧Virtual load
61‧‧‧電阻61‧‧‧resistance
62‧‧‧接地點62‧‧‧ Grounding point
7‧‧‧開關單元7‧‧‧Switch unit
70‧‧‧金屬氧化物半導體場效電晶體70‧‧‧Metal Oxide Semiconductor Field Effect Transistor
8‧‧‧電力源8‧‧‧Power source
91‧‧‧常備電力91‧‧‧Standing power
92‧‧‧電源啟閉訊號92‧‧‧Power On/Off Signal
93‧‧‧主輸出電力93‧‧‧Main output power
圖1為習知電路之示意圖。Figure 1 is a schematic diagram of a conventional circuit.
圖2為本案電路架構之示意圖。Figure 2 is a schematic diagram of the circuit architecture of the present invention.
圖3為該開關單元與虛擬負載的實施態樣示意圖。FIG. 3 is a schematic diagram of an embodiment of the switch unit and the virtual load.
11‧‧‧濾波單元 11‧‧‧Filter unit
12‧‧‧整流單元 12‧‧‧Rectifier unit
2‧‧‧常備電力系統 2‧‧‧Standing power system
3‧‧‧功因校正電路 3‧‧‧Power factor correction circuit
4‧‧‧主電力系統 4‧‧‧Main power system
5‧‧‧控制單元 5‧‧‧Control unit
6‧‧‧虛擬負載 6‧‧‧Virtual load
7‧‧‧開關單元 7‧‧‧Switch unit
8‧‧‧電力源 8‧‧‧Power source
91‧‧‧常備電力 91‧‧‧Standing power
92‧‧‧電源啟閉訊號 92‧‧‧Power On/Off Signal
93‧‧‧主輸出電力 93‧‧‧Main output power
Claims (4)
一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常備電力系統與該虛擬負載電性連接。A power supply circuit for improving standby power consumption defines a power supply having a main power system and a standing power system. The standing power system outputs a standing power, and a control unit obtains the standing power and is triggered by a power on/off signal. Driving the main power system to output a main output power, wherein the power supply is characterized by:
The two ends of a switch unit are respectively connected to a power line for outputting the standby power and a virtual load, and the conduction of the switch unit is controlled by the power on/off signal, and the switch unit is triggered by the power on/off signal. The power supply standby state is in an off state, and the switch unit is electrically connected to the virtual load by being turned on after being triggered by the power supply and shutdown signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99109311A TWI411911B (en) | 2010-03-29 | 2010-03-29 | Improve the standby power consumption of the power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99109311A TWI411911B (en) | 2010-03-29 | 2010-03-29 | Improve the standby power consumption of the power circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201133226A TW201133226A (en) | 2011-10-01 |
| TWI411911B true TWI411911B (en) | 2013-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW99109311A TWI411911B (en) | 2010-03-29 | 2010-03-29 | Improve the standby power consumption of the power circuit |
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| TW (1) | TWI411911B (en) |
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| TWI497870B (en) * | 2013-12-10 | 2015-08-21 | Zippy Tech Corp | Reduced standby power consumption of redundant power systems |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6446213B1 (en) * | 1997-09-01 | 2002-09-03 | Kabushiki Kaisha Toshiba | Software-based sleep control of operating system directed power management system with minimum advanced configuration power interface (ACPI)-implementing hardware |
| CN101441505A (en) * | 2007-11-23 | 2009-05-27 | 北京交通大学 | Energy-saving controlled computer power supply device |
| TW200929787A (en) * | 2007-12-31 | 2009-07-01 | Hon Hai Prec Ind Co Ltd | Adaptation circuit of power supply |
| TW201005502A (en) * | 2008-07-16 | 2010-02-01 | Zippy Tech Corp | Power supply with low energy-consumption in standby conditions |
-
2010
- 2010-03-29 TW TW99109311A patent/TWI411911B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6446213B1 (en) * | 1997-09-01 | 2002-09-03 | Kabushiki Kaisha Toshiba | Software-based sleep control of operating system directed power management system with minimum advanced configuration power interface (ACPI)-implementing hardware |
| CN101441505A (en) * | 2007-11-23 | 2009-05-27 | 北京交通大学 | Energy-saving controlled computer power supply device |
| TW200929787A (en) * | 2007-12-31 | 2009-07-01 | Hon Hai Prec Ind Co Ltd | Adaptation circuit of power supply |
| TW201005502A (en) * | 2008-07-16 | 2010-02-01 | Zippy Tech Corp | Power supply with low energy-consumption in standby conditions |
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| TW201133226A (en) | 2011-10-01 |
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