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公开(公告)号：US08009404B2
公开(公告)日：2011-08-30
申请号：US11962090
申请日：2007-12-21
CPC分类号： H02J1/108 , H02M2001/0045 , Y10T307/615 , Y10T307/625
摘要： A system is provided that effectively obviates shortcomings of conventional, diode-ORed, redundant power supply systems by forcing a primary power source to provide power to the system load most the time, even when the primary source provides a lower voltage than that of a secondary power source. This preferential selection of the lower-voltage primary is achieved by interposing a power switching unit between the secondary power source and the ORing diode in front of the load. The power switching unit of the illustrative embodiment comprises a voltage regulator that is regulated at a first voltage level, which is lower than the nominal output voltage level provided by the primary power source. Meanwhile, the primary power source is able to charge the secondary power source, which is a battery in the illustrative embodiment, so that the secondary power source can provide power to the load when the primary power source is either interrupted or falls below the first voltage level.
摘要翻译： 提供了一种系统，通过强制主电源为大部分时间向系统负载供电，从而有效地避免了传统的二极管等效冗余电源系统的缺点，即使主电源提供的电压低于次级电源的电压 能量源。 通过在二次电源和负载前面的ORing二极管之间插入功率开关单元来实现对低电压初级的优选选择。 说明性实施例的功率切换单元包括调节在低于由主电源提供的标称输出电压电平的第一电压电平的电压调节器。 同时，主电源能够对作为说明性实施例中的电池的次级电源进行充电，使得当主电源被中断或低于第一电压时，次级电源可以为负载提供电力 水平。
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公开(公告)号：US20100265628A1
公开(公告)日：2010-10-21
申请号：US11962090
申请日：2007-12-21
CPC分类号： H02J1/108 , H02M2001/0045 , Y10T307/615 , Y10T307/625
摘要： A system is provided that effectively obviates shortcomings of conventional, diode-ORed, redundant power supply systems by forcing a primary power source to provide power to the system load most the time, even when the primary source provides a lower voltage than that of a secondary power source. This preferential selection of the lower-voltage primary is achieved by interposing a power switching unit between the secondary power source and the ORing diode in front of the load. The power switching unit of the illustrative embodiment comprises a voltage regulator that is regulated at a first voltage level, which is lower than the nominal output voltage level provided by the primary power source. Meanwhile, the primary power source is able to charge the secondary power source, which is a battery in the illustrative embodiment, so that the secondary power source can provide power to the load when the primary power source is either interrupted or falls below the first voltage level.
摘要翻译： 提供了一种系统，通过强制主电源为大部分时间向系统负载供电，从而有效地避免了传统的二极管等效冗余电源系统的缺点，即使主电源提供的电压低于次级电源的电压 能量源。 通过在二次电源和负载前面的ORing二极管之间插入功率开关单元来实现对低电压初级的优选选择。 说明性实施例的功率切换单元包括调节在低于由主电源提供的标称输出电压电平的第一电压电平的电压调节器。 同时，主电源能够对作为说明性实施例中的电池的次级电源进行充电，使得当主电源被中断或低于第一电压时，次级电源可以为负载提供电力 水平。
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