TWI400602B - Power supply circuit for function module of motherboard - Google Patents
Power supply circuit for function module of motherboard Download PDFInfo
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Description
本發明係關於一種主機板功能模組供電電路。 The invention relates to a power supply circuit for a motherboard function module.
主機板上具有複數功能模組，比如板載繪圖卡模組、板載聲效卡模組及板載網路卡模組等。該等功能模組之供電模式一般分為兩類，第一類係單獨電源模式，即有單獨供電電路模組。第二類係共用電源模式，即複數功能模組共用一供電電路模組。當系統開機時，系統電源即會對主機板供電，此時，該主機板上之單獨供電電路模組或者共享供電電路模組會對功能模組供電，以使得該功能模組工作；當系統關機時，系統電源停止供電，該功能模組即失電停止工作。然，並非所有功能模組均時時處於工作狀態，比如當系統不需要網路連接時，用戶並不能關斷該主機板上板載網路卡模組之電源，該主機板上板載網路卡模組仍然處於耗電狀態，如此則會造成電能浪費。 The motherboard has a plurality of functional modules, such as an onboard graphics card module, an onboard sound card module, and an onboard network card module. The power modes of the functional modules are generally divided into two categories. The first type is a separate power mode, that is, a separate power supply circuit module. The second type shares the power mode, that is, the plurality of function modules share a power supply circuit module. When the system is powered on, the system power supply will supply power to the motherboard. At this time, the separate power supply circuit module or the shared power supply circuit module on the motherboard will supply power to the function module, so that the function module works; When the power is turned off, the system power supply stops supplying power, and the function module stops power supply and stops working. However, not all function modules are always in working state. For example, when the system does not require a network connection, the user cannot turn off the power of the onboard network card module on the motherboard, and the onboard network of the motherboard The road card module is still in a state of power consumption, which will result in wasted power.
鑒於以上內容，有必要提供一種具有省電功能之主機板功能模組供電電路。 In view of the above, it is necessary to provide a power supply circuit for a motherboard functional module having a power saving function.
一種主機板功能模組供電電路，包括一電源模組、一功能模組、一開關裝置及一電源控制單元，該開關裝置與電源控制單元之控制端相連，用於控制該電源控制單元之開啟與關閉，該電源控制單元之輸入端與該電源模組相連，輸出端與該功能模組相連，當該電源控制單元開啟時，該電源模組 輸出電壓給該功能模組；當該電源控制單元關閉時，該電源模組不輸出電壓給該功能模組。 A power supply circuit for a motherboard function module includes a power module, a function module, a switch device and a power control unit, and the switch device is connected to a control end of the power control unit for controlling the opening of the power control unit And being closed, the input end of the power control unit is connected to the power module, and the output end is connected to the function module, and when the power control unit is turned on, the power module The output voltage is applied to the function module; when the power control unit is turned off, the power module does not output a voltage to the function module.
前述主機板功能模組供電電路透過開關裝置及電源控制單元可實現單獨對該功能模組進行供電控制，當該功能模組不工作時，即可關閉其供電電源，以節省電能。 The power supply circuit of the motherboard function module can realize power supply control of the function module separately through the switch device and the power control unit. When the function module is not working, the power supply can be turned off to save power.
10‧‧‧第一跳線器 10‧‧‧First jumper
20‧‧‧第二跳線器 20‧‧‧Second jumper
30‧‧‧第三跳線器 30‧‧‧third jumper
31‧‧‧第四跳線器 31‧‧‧4th jumper
40‧‧‧第五跳線器 40‧‧‧ fifth jumper
41‧‧‧第六跳線器 41‧‧‧ sixth jumper
16‧‧‧第一功能模組 16‧‧‧First function module
24‧‧‧第二功能模組 24‧‧‧Second function module
36‧‧‧第三功能模組 36‧‧‧ third function module
45‧‧‧第四功能模組 45‧‧‧Fourth function module
46‧‧‧第五功能模組 46‧‧‧ fifth function module
14‧‧‧第一電源模組 14‧‧‧First power module
22‧‧‧第二電源模組 22‧‧‧Second power module
34‧‧‧第三電源模組 34‧‧‧ Third power module
35‧‧‧第四電源模組 35‧‧‧fourth power module
44‧‧‧共享電源模組 44‧‧‧Shared Power Module
Vcc‧‧‧電壓源 Vcc‧‧‧ voltage source
Q1‧‧‧場效應電晶體 Q1‧‧‧ Field Effect Transistor
R1、R2、R3、R4、R5、R6‧‧‧電阻 R1, R2, R3, R4, R5, R6‧‧‧ resistors
12、32、33、42、43‧‧‧控制晶片 12, 32, 33, 42, 43‧‧‧ control wafer
圖1係本發明主機板功能模組供電電路中單獨電源模式功能模組之供電電路之第一較佳實施方式之示意圖。 1 is a schematic diagram of a first preferred embodiment of a power supply circuit of a separate power mode function module in a power supply circuit of a motherboard functional module of the present invention.
圖2係本發明主機板功能模組供電電路中單獨電源模式功能模組之供電電路之第二較佳實施方式之示意圖。 2 is a schematic diagram of a second preferred embodiment of a power supply circuit of a separate power mode function module in a power supply circuit of a motherboard functional module of the present invention.
圖3係本發明主機板功能模組供電電路中單獨電源模式功能模組之供電電路之第三較佳實施方式之示意圖。 3 is a schematic diagram of a third preferred embodiment of a power supply circuit of a separate power mode function module in a power supply circuit of a motherboard functional module of the present invention.
圖4係本發明主機板功能模組供電電路中共用電源模式功能模組之供電電路之較佳實施方式之示意圖。 4 is a schematic diagram of a preferred embodiment of a power supply circuit for a shared power mode function module in a power supply circuit of a motherboard functional module of the present invention.
本發明將對具有單獨電源模式之功能模組及具有共用電源模式之功能模組分別進行說明。 The present invention will separately describe a functional module having a separate power mode and a functional module having a shared power mode.
請參閱圖1，本發明主機板功能模組供電電路中單獨電源模式功能模組之供電電路之第一較佳實施方式包括一第一開關裝置及一第一電源控制單元，本實施方式中，該第一開關裝置以一第一跳線器10為例，其包括一第一引腳、一第二引腳及一控制引腳，該第一跳線器10之第一引腳透過一電阻R1與一電壓源Vcc相連，第二引腳接地，該第一電源控制單元為一控制晶片12，該控制晶片12包括一低電平致能引腳、一輸入引腳及一輸出引腳，該第 一跳線器10之控制引腳與該控制晶片12之低電平致能引腳相連以控制該控制晶片12之工作狀態，該控制晶片12之輸入引腳與一第一電源模組14相連，該控制晶片12之輸出引腳與一第一功能模組16相連以提供第一功能模組16所需之電源。 Referring to FIG. 1 , a first preferred embodiment of a power supply circuit for a single power mode function module in a power supply circuit of a motherboard functional module includes a first switching device and a first power control unit. In this embodiment, The first switching device is exemplified by a first jumper 10, which includes a first pin, a second pin and a control pin. The first pin of the first jumper 10 transmits a resistor. The first power control unit is a control chip 12, and the control chip 12 includes a low level enable pin, an input pin and an output pin. The first A control pin of the jumper 10 is connected to the low level enable pin of the control chip 12 to control the working state of the control chip 12. The input pin of the control chip 12 is connected to a first power module 14. The output pin of the control chip 12 is connected to a first functional module 16 to provide the power required by the first functional module 16.
當系統不需要該第一功能模組16工作時，即可將該第一跳線器10之第一引腳與控制引腳短接，使該第一跳線器10之控制引腳成為高電平，進而使得該控制晶片12之低電平致能引腳為高電平，即該控制晶片12停止輸出，此時，該第一功能模組16不工作。當系統需要該第一功能模組16工作時，則將該第一跳線器10之第二引腳與控制引腳短接，使該第一跳線器10之控制引腳為低電平，該控制晶片12輸出電源給該第一功能模組16。其中，該控制晶片12之低電平致能引腳可為高電平致能引腳，其原理同上。 When the system does not need to operate the first function module 16, the first pin of the first jumper 10 can be shorted to the control pin, so that the control pin of the first jumper 10 becomes high. The level, which in turn causes the low level enable pin of the control chip 12 to be high, that is, the control chip 12 stops outputting, and at this time, the first function module 16 does not operate. When the system needs the first function module 16 to work, the second pin of the first jumper 10 is shorted to the control pin, so that the control pin of the first jumper 10 is low. The control chip 12 outputs power to the first functional module 16. The low-level enable pin of the control chip 12 can be a high-level enable pin, and the principle is the same as above.
請一併參閱圖2，本發明主機板功能模組供電電路中單獨電源模式功能模組之供電電路之第二較佳實施方式包括一第二開關裝置如一第二跳線器20及一第二電源控制單元。其中，該第二跳線器20與圖1中所述之第一跳線器10結構相同，其第一引腳透過一電阻R2與一電壓源Vcc相連，第二引腳接地，該第二電源控制單元為一場效應電晶體Q1，該場效應電晶體Q1之閘極與該第二跳線器20之控制引腳相連，汲極與一第二電源模組22相連，源極與一第二功能模組24相連，其中該場效應電晶體Q1為P溝道場效應電晶體。 Referring to FIG. 2, a second preferred embodiment of the power supply circuit of the single power mode function module in the power supply circuit of the motherboard functional module includes a second switch device, such as a second jumper 20 and a second Power control unit. The second jumper 20 has the same structure as the first jumper 10 described in FIG. 1. The first pin is connected to a voltage source Vcc through a resistor R2, and the second pin is grounded. The power control unit is a field effect transistor Q1. The gate of the field effect transistor Q1 is connected to the control pin of the second jumper 20. The drain is connected to a second power module 22, and the source and the first The two function modules 24 are connected, wherein the field effect transistor Q1 is a P channel field effect transistor.
當系統需要該第二功能模組24工作時，即將該第二跳線器20之第二引腳與控制引腳短接，使該第二跳線器20之控制引腳成為低電平，進而使得該場效應電晶體Q1之閘極變為低電平，此時該場效應電晶體Q1導通，即該第二電源模組22透過該場效應電晶體Q1輸出給該第二功能模組24。當系統不需要該第二功能模組24工作時，即將該跳線器20之第一引腳與控制引腳短接，則該跳線器20之控制引腳變為高電平，該場效應電晶體01即截止，此時 ，該第二功能模組24不得電。 When the system needs the second function module 24 to work, the second pin of the second jumper 20 is shorted to the control pin, so that the control pin of the second jumper 20 becomes a low level. The gate of the field effect transistor Q1 is turned to a low level, and the field effect transistor Q1 is turned on, that is, the second power module 22 is output to the second function module through the field effect transistor Q1. twenty four. When the system does not need the second function module 24 to work, the first pin of the jumper 20 is shorted to the control pin, and the control pin of the jumper 20 becomes a high level. The effect transistor 01 is turned off, at this time The second function module 24 is not electrically charged.
請一併參閱圖3，本發明主機板功能模組供電電路中單獨電源模式功能模組之供電電路之第三較佳實施方式用於為一具有多種工作電壓之第三功能模組36供電，該實施方式以該第三功能模組36具有兩種工作電壓為例進行說明。該實施方式包括一第三開關裝置如一第三跳線器30、一第四開關裝置如一第四跳線器31、一第三電源控制單元及一第四電源控制單元，其中該第三跳線器30及第四跳線器31與圖1中所述之第一跳線器10結構相同，該第三跳線器30之第一引腳透過一電阻R3與一電壓源Vcc相連，第二引腳接地，該第四跳線器31之第一引腳透過一電阻R4與電壓源Vcc相連，第二引腳接地，該第三電源控制單元為一控制晶片32，該第四電源控制單元為一控制晶片33，該控制晶片32及33均包括一輸入引腳、一輸出引腳及一低電平致能引腳，該控制晶片32之低電平致能引腳與該第三跳線器30之控制引腳相連，輸出引腳與該第三功能模組36相連，輸入引腳與一具有第一電壓之第三電源模組34相連，該控制晶片33之低電平致能引腳與該第四跳線器31之控制引腳相連，輸出引腳與該第三功能模組36相連，輸入引腳與一具有第二電壓之第四電源模組35相連。 Referring to FIG. 3, a third preferred embodiment of the power supply circuit of the separate power mode function module in the power supply circuit of the motherboard functional module of the present invention is used to supply power to a third functional module 36 having multiple operating voltages. In this embodiment, the third functional module 36 has two operating voltages as an example for description. The embodiment includes a third switching device such as a third jumper 30, a fourth switching device such as a fourth jumper 31, a third power control unit, and a fourth power control unit, wherein the third jumper The first jumper 10 is the same as the first jumper 10 of FIG. 1, and the first pin of the third jumper 30 is connected to a voltage source Vcc through a resistor R3. The pin is grounded, the first pin of the fourth jumper 31 is connected to the voltage source Vcc through a resistor R4, and the second pin is grounded. The third power control unit is a control chip 32, and the fourth power control unit As a control chip 33, the control chips 32 and 33 each include an input pin, an output pin and a low level enable pin, and the low level enable pin of the control chip 32 and the third jump The control pin of the line 30 is connected, the output pin is connected to the third function module 36, and the input pin is connected to a third power module 34 having a first voltage, and the low level of the control chip 33 is enabled. The pin is connected to the control pin of the fourth jumper 31, and the output pin is connected to the third function module 36. And a fourth input pin of a power module having a second voltage connected to 35.
當系統需要該第三功能模組36以第一工作電壓工作時，則將該第三跳線器30之第二引腳與其控制引腳短接、該第四跳線器31之第一引腳與其控制引腳短接，使該第三跳線器30之控制引腳為低電平、該第四跳線器31之控制引腳為高電平，此時，該控制晶片32輸出第一工作電壓給該第三功能模組36、該控制晶片33無工作電壓輸出。當系統需要該第三功能模組36以第二工作電壓工作時，則將該第三跳線器30之第一引腳與其控制引腳短接、該第四跳線器31之第二引腳與其控制引腳短接，使該第三跳線器30之控制引腳為高電平、該第四跳線器31之控制引腳為低電平，此時，該控制晶片32 無工作電壓輸出、該控制晶片33輸出第二工作電壓給該第三功能模組36。當系統不需要該第三功能模組34工作時，則將該第三、第四跳線器30及31之第一引腳與其控制引腳短接，即該第三、第四跳線器30及31之控制引腳均為高電平，此時，該控制晶片32及33均無工作電壓輸出，即該第三功能模組36不工作。 When the system needs the third function module 36 to operate at the first working voltage, the second pin of the third jumper 30 is shorted to its control pin, and the first jumper of the fourth jumper 31 is The pin is shorted to its control pin, so that the control pin of the third jumper 30 is low level, and the control pin of the fourth jumper 31 is high level. At this time, the control chip 32 outputs the first An operating voltage is applied to the third functional module 36 and the control wafer 33 has no operating voltage output. When the system needs the third function module 36 to operate at the second working voltage, the first pin of the third jumper 30 is shorted to its control pin, and the second jumper 31 is second. The pin is shorted to its control pin, so that the control pin of the third jumper 30 is at a high level, and the control pin of the fourth jumper 31 is at a low level. At this time, the control chip 32 The control chip 33 outputs a second operating voltage to the third functional module 36. When the system does not need to operate the third function module 34, the first pins of the third and fourth jumpers 30 and 31 are shorted to their control pins, that is, the third and fourth jumpers The control pins of 30 and 31 are both high. At this time, the control chips 32 and 33 have no working voltage output, that is, the third function module 36 does not work.
其中，前述控制晶片32及33亦可用兩P溝道場效應電晶體代替，該兩場效應電晶體之閘極分別與該第三、第四跳線器30及31之控制引腳相連，汲極分別與該第三、第四電源模組34及35相連，源極共同與該第三功能模組36相連即可。若系統需要該第三功能模組36以第一工作電壓工作，則將該第三跳線器30之第二引腳與其控制引腳短接、該第四跳線器31之第一引腳與其控制引腳短接，此時，與該第三跳線器30相連之場效應電晶體導通、與該第四跳線器31相連之場效應電晶體截止，即該第三功能模組36以第一工作電壓工作。相反，若系統需要該第三功能模組36以第二工作電壓工作，則將該第三跳線器30之第一引腳與其控制引腳短接、該第四跳線器31之第二引腳與其控制引腳短接即可。若系統不需要該第三功能模組36工作時，則將該第三、第四跳線器30及31之第一引腳均與其對應之控制引腳短接即可。 The control chips 32 and 33 can also be replaced by two P-channel field effect transistors, and the gates of the two field effect transistors are respectively connected to the control pins of the third and fourth jumpers 30 and 31, and the drain The third and fourth power modules 34 and 35 are respectively connected, and the sources are commonly connected to the third function module 36. If the third functional module 36 is required to operate at the first operating voltage, the second pin of the third jumper 30 is shorted to its control pin, and the first pin of the fourth jumper 31 is The field effect transistor connected to the third jumper 30 is turned on, and the field effect transistor connected to the fourth jumper 31 is turned off, that is, the third function module 36 is short-circuited. Operates at the first operating voltage. On the contrary, if the system needs the third function module 36 to operate at the second operating voltage, the first pin of the third jumper 30 is shorted to its control pin, and the second jumper 31 is second. The pin can be shorted to its control pin. If the system does not need to operate the third function module 36, the first pins of the third and fourth jumpers 30 and 31 are shorted to their corresponding control pins.
請一併參閱圖4，本發明主機板功能模組供電電路中共用電源模式功能模組之供電電路之較佳實施方式包括一第五開關裝置如一第五跳線器40、一第六開關裝置如一第六跳線器41、一第五電源控制單元及一第六電源控制單元，其中該第五、第六跳線器40及41均包括一第一引腳、一第二引腳及一控制引腳，其第一引腳分別對應與一電壓源Vcc相連，第二引腳均接地，該第五電源控制單元為一控制晶片42，該第六電源控制單元為一控制晶片43，該控制晶片42及43均包括一低電平致能引腳、一輸入引腳及一輸出引腳 ，該控制晶片42之輸入引腳與一共享電源模組44相連，輸出引腳與一第四功能模組45相連，低電平致能引腳與該第五跳線器40之控制引腳相連，該控制晶片43之輸入引腳與該共享電源模組44相連，輸出引腳與一第五功能模組46相連，低電平致能引腳與該第六跳線器41之控制引腳相連。本較佳實施方式以二個功能模組共用一電源模組為例，在其他實施方式中亦可為三個或者更多功能模組共用一電源模組，其原理相同。 Referring to FIG. 4, a preferred embodiment of the power supply circuit for sharing the power mode function module in the power supply circuit of the motherboard functional module includes a fifth switch device, such as a fifth jumper 40 and a sixth switch device. For example, a sixth jumper 41, a fifth power control unit, and a sixth power control unit, wherein the fifth and sixth jumpers 40 and 41 each include a first pin, a second pin, and a The control pin has a first pin connected to a voltage source Vcc and a second pin grounded. The fifth power control unit is a control chip 42. The sixth power control unit is a control chip 43. Control chips 42 and 43 each include a low level enable pin, an input pin and an output pin. The input pin of the control chip 42 is connected to a shared power module 44, the output pin is connected to a fourth function module 45, and the low level enable pin and the control pin of the fifth jumper 40 Connected, the input pin of the control chip 43 is connected to the shared power module 44, the output pin is connected to a fifth function module 46, and the low level enable pin and the sixth jumper 41 are controlled. The feet are connected. In the preferred embodiment, a power module is shared by two functional modules. In other embodiments, three or more functional modules can share a power module. The principle is the same.
當系統不需要該第四、第五功能模組45及46之一工作時，只需要將與其對應跳線器之第一引腳與控制引腳短接即可；當系統需要該第四、第五功能模組45及46之一工作時，只需要將與其對應跳線器之第二引腳與控制引腳短接即可。 When the system does not need to work on one of the fourth and fifth functional modules 45 and 46, only the first pin of the corresponding jumper and the control pin need to be shorted; when the system needs the fourth, When one of the fifth function modules 45 and 46 is working, only the second pin of the corresponding jumper and the control pin need to be shorted.
其中，前述控制晶片42及43亦可用兩個P溝道場效應電晶體代替，該兩場效應電晶體之閘極分別與該第五、第六跳線器40及41之控制引腳相連，汲極均與該共享電源模組44相連，源極分別與該第四、第五功能模組45及46相連即可。當系統不需要該第四、第五功能模組45及46之一工作時，只需要將與其對應之跳線器之第一引腳與控制引腳短接即可；當系統需要該第四、第五功能模組45及46之一工作時，只需要將與其對應之跳線器之第二引腳與控制引腳短接即可。 The control chips 42 and 43 can also be replaced by two P-channel field effect transistors, and the gates of the two field effect transistors are respectively connected to the control pins of the fifth and sixth jumpers 40 and 41, The poles are connected to the shared power module 44, and the sources are respectively connected to the fourth and fifth function modules 45 and 46. When the system does not need to work on one of the fourth and fifth functional modules 45 and 46, only the first pin of the corresponding jumper and the control pin need to be shorted; when the system needs the fourth When one of the fifth function modules 45 and 46 is working, only the second pin of the corresponding jumper and the control pin need to be shorted.
其中，前述場效應電晶體可根據設計者之需要選用N溝道場效應電晶體或P溝道場效應電晶體均可，只需滿足所選之場效應電晶體之最大負載電流不小於與其相連之功能模組即可。當設計者選用N溝道場效應電晶體時，若系統不需要該第四、第五功能模組45及46之一工作，則將與其對應之跳線器之第二引腳與控制引腳短接即可；若系統需要該第四、第五功能模組45及46之一工作，則將與其對應之跳線器之第一引腳與控制引腳短接即可。前述跳線器達到為該電源控制單元提供兩種電平即高電平與低電平之功能， 在其他實施方式中設計者亦可採用其他能實現該功能之組件來代替，如一具有兩個檔位之開關，其第一引腳與該電壓源Vcc相連，第二引腳與該電源控制單元相連，第三引腳接地。當該開關位於第一檔位時，其第一引腳與第二引腳短接，即該開關輸出一高電平給該電源控制單元；當該開關位於第二檔位時，其第三引腳與第二引腳短接，即該開關輸出一低電平給該電源控制單元。 Wherein, the field effect transistor can be selected according to the needs of the designer, and the N-channel field effect transistor or the P channel field effect transistor can be selected, and only the maximum load current of the selected field effect transistor is not less than the function connected thereto. The module can be. When the designer selects an N-channel field effect transistor, if the system does not need to work on one of the fourth and fifth function modules 45 and 46, the second pin and the control pin of the corresponding jumper are short. If the system needs one of the fourth and fifth function modules 45 and 46 to work, the first pin of the corresponding jumper and the control pin are shorted. The aforementioned jumper reaches the function of providing two levels, that is, a high level and a low level, for the power control unit. In other embodiments, the designer may also use other components that can implement the function instead, such as a switch having two gear positions, the first pin is connected to the voltage source Vcc, and the second pin is connected to the power control unit. Connected, the third pin is grounded. When the switch is in the first gear position, the first pin is short-circuited with the second pin, that is, the switch outputs a high level to the power control unit; when the switch is in the second gear position, the third The pin is shorted to the second pin, that is, the switch outputs a low level to the power control unit.
前述主機板功能模組供電電路透過跳線器及電源控制單元可實現單獨對每一功能模組進行供電控制，當其中某一功能模組不工作時，即可關閉其供電電源，以節省電能。 The power supply circuit of the motherboard function module can realize power supply control for each function module through the jumper and the power control unit. When one of the function modules does not work, the power supply can be turned off to save power. .
綜上所述，本發明符合發明專利要件，爰依法提出專利申請。惟，以上所述者僅為本發明之較佳實施例，舉凡熟悉本案技藝之人士，在爰依本發明精神所作之等效修飾或變化，皆應涵蓋於以下之申請專利範圍內。 In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.
10‧‧‧第一跳線器 10‧‧‧First jumper
16‧‧‧第一功能模組 16‧‧‧First function module
12‧‧‧控制晶片 12‧‧‧Control chip
R1‧‧‧電阻 R1‧‧‧ resistance
14‧‧‧第一電源模組 14‧‧‧First power module
Vcc‧‧‧電壓源 Vcc‧‧‧ voltage source
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| CN103513739A (en) * | 2012-06-28 | 2014-01-15 | 鸿富锦精密工业（深圳）有限公司 | Hard disk power supply circuit and hard disk back plate |
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|---|---|---|---|---|
| US5777897A (en) * | 1996-11-26 | 1998-07-07 | The United States Of America As Represented By The Secretary Of The Navy | Method for optimizing the rotational speed of cooling fans |
| TWI220185B (en) * | 2002-11-21 | 2004-08-11 | Chang Tseng Technology Co Ltd | Power sharing control device and method for industrial computer system |
| US20060149977A1 (en) * | 2004-12-31 | 2006-07-06 | Barnes Cooper | Power managing point-to-point AC coupled peripheral device |
| TW200818669A (en) * | 2006-03-31 | 2008-04-16 | Intel Corp | Gradient non-linear adaptive power architecture and scheme |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777897A (en) * | 1996-11-26 | 1998-07-07 | The United States Of America As Represented By The Secretary Of The Navy | Method for optimizing the rotational speed of cooling fans |
| TWI220185B (en) * | 2002-11-21 | 2004-08-11 | Chang Tseng Technology Co Ltd | Power sharing control device and method for industrial computer system |
| US20060149977A1 (en) * | 2004-12-31 | 2006-07-06 | Barnes Cooper | Power managing point-to-point AC coupled peripheral device |
| TW200818669A (en) * | 2006-03-31 | 2008-04-16 | Intel Corp | Gradient non-linear adaptive power architecture and scheme |
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