Always-On System For Uninterrupted Power Supply
First Claim
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1. An always-on uninterrupted power supply system connected with an external power device at one side of said always-on uninterrupted power supply system for providing diverse power supplies and a load at another side, said external power device comprising a main power supply unit and a bypass power supply unit, comprising:
- a power supply input unit provided with a main power supply input terminal, a bypass power supply input terminal and a power supply asynchronous detecting circuit, said main power supply input terminal connected to said main power supply unit, said bypass power supply input terminal connected to said bypass power supply unit, said power supply asynchronous detecting circuit connected with said main power supply input terminal and said bypass power supply input terminal respectively, wherein the power supply asynchronous detecting circuit detecting if a phase of a power supply transmitted from said main power supply input terminal is synchronous with that of another power supply transmitted from said bypass power supply input terminal;
a protection circuit unit connected with said power supply input unit at its one side for protecting said load from being damaged, said protection circuit unit is provided with a first filtering circuit, a delay protection circuit, an abnormal protection circuit and a second filtering circuit, said first filtering circuit connected with said main power supply input terminal and said bypass power supply input terminal of said power supply input unit respectively at its one side to isolate noise of surge and harmonic created inside said always-on system, said delay protection circuit connected with said abnormal protection circuit, said second filtering circuit connected with said load;
a power supply switch unit connected with said first filtering circuit at its one side and connected with said second filtering circuit at its another side; and
a control unit connected with said delay protection circuit at its one side and connected with said power supply switch unit at its another side;
thereby, said control unit able to select said main power supply input terminal or said bypass power supply input terminal to provide power to keep said load operating continuously without being affected when one of said main power supply unit and said bypass power supply unit is being installed or uninstalled, in addition, if said power supply switch unit is switched to said bypass power supply input terminal and said bypass power supply unit stops providing power after having the main power supply unit connected with the main power supply input terminal, the abnormal protection circuit sends an enabling signal to the power supply switch unit through the delay protection circuit and the control unit, said power supply switch unit is to automatically select said main power supply input terminal for being transmitted with external power supply.
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Abstract
This invention relates to an always-on uninterrupted power supply system mainly provided with a control unit to govern a power supply switch unit. When one of main power supply units or a bypass power supply unit of an external power device is to be installed or uninstalled for maintenance, a user can operate the control unit to enable the power supply switch unit to switch to the main power supply unit or the bypass power supply unit that is not to be installed or uninstalled to provide power for loads connected with the always-on uninterrupted power supply system to operate continuously, without interrupting the normal operation of the load.
9 Citations
3 Claims
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1. An always-on uninterrupted power supply system connected with an external power device at one side of said always-on uninterrupted power supply system for providing diverse power supplies and a load at another side, said external power device comprising a main power supply unit and a bypass power supply unit, comprising:
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a power supply input unit provided with a main power supply input terminal, a bypass power supply input terminal and a power supply asynchronous detecting circuit, said main power supply input terminal connected to said main power supply unit, said bypass power supply input terminal connected to said bypass power supply unit, said power supply asynchronous detecting circuit connected with said main power supply input terminal and said bypass power supply input terminal respectively, wherein the power supply asynchronous detecting circuit detecting if a phase of a power supply transmitted from said main power supply input terminal is synchronous with that of another power supply transmitted from said bypass power supply input terminal; a protection circuit unit connected with said power supply input unit at its one side for protecting said load from being damaged, said protection circuit unit is provided with a first filtering circuit, a delay protection circuit, an abnormal protection circuit and a second filtering circuit, said first filtering circuit connected with said main power supply input terminal and said bypass power supply input terminal of said power supply input unit respectively at its one side to isolate noise of surge and harmonic created inside said always-on system, said delay protection circuit connected with said abnormal protection circuit, said second filtering circuit connected with said load; a power supply switch unit connected with said first filtering circuit at its one side and connected with said second filtering circuit at its another side; and a control unit connected with said delay protection circuit at its one side and connected with said power supply switch unit at its another side; thereby, said control unit able to select said main power supply input terminal or said bypass power supply input terminal to provide power to keep said load operating continuously without being affected when one of said main power supply unit and said bypass power supply unit is being installed or uninstalled, in addition, if said power supply switch unit is switched to said bypass power supply input terminal and said bypass power supply unit stops providing power after having the main power supply unit connected with the main power supply input terminal, the abnormal protection circuit sends an enabling signal to the power supply switch unit through the delay protection circuit and the control unit, said power supply switch unit is to automatically select said main power supply input terminal for being transmitted with external power supply. - View Dependent Claims (2, 3)
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Specification
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Current AssigneeKuo-Hsien Kuo
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Original AssigneeKuo-Hsien Kuo
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InventorsKUO, Kuo-Hsien
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Application NumberUS13/282,201Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current713/300CPC Class CodesG06F 1/263 Arrangements for using mult...
