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    • 1. 发明授权
    • Automated control of rotational velocity of an air-moving device of an electronics rack responsive to an event
    • 自动控制响应于事件的电子机架的空气移动装置的旋转速度
    • US07768222B2
    • 2010-08-03
    • US12031952
    • 2008-02-15
    • Steven J. AhladasGary N. GothRobert P. MakowickiKatie L. Pizzolato
    • Steven J. AhladasGary N. GothRobert P. MakowickiKatie L. Pizzolato
    • H02P7/00H02P31/00
    • G01K13/00G06F1/206
    • Automated control is provided of rotational velocity of an air-moving device cooling an electronics subsystem of an electronics rack. The automated control includes: automatically responding to a failure event associated with the electronics subsystem of the rack by setting rotational velocity of the air-moving device to a first upper limit (RPM1) above a normal operating limit; sensing motor temperature of a motor of the air-moving device; automatically increasing rotational velocity of the air-moving device to a second upper limit (RPM2) if the sensed motor temperature is below a first predefined temperature threshold (T1), wherein RPM2>RPM 1; maintaining rotational velocity of the air-moving device at the second upper limit while the sensed motor temperature is below a second predefined temperature threshold (T2), wherein T2>T1; and returning to normal operating rotational velocity of the air-moving device subsequent to servicing of the electronics rack responsive to the event.
    • 提供了冷却电子机架的电子子系统的空气移动装置的旋转速度的自动控制。 自动控制包括:通过将空气移动装置的旋转速度设定在高于正常操作极限的第一上限(RPM1)来自动响应与机架的电子子系统相关联的故障事件; 感测气动装置的电机的电机温度; 如果感测到的电动机温度低于第一预定温度阈值(T1),则将空气移动装置的旋转速度自动增加到第二上限(RPM2),其中RPM2> RPM1; 在感测到的电动机温度低于第二预定温度阈值(T2)的同时保持空气移动装置的旋转速度处于第二上限,其中T2> T1; 并且响应于该事件,在对电子机架进行维修之后,返回到空气移动装置的正常操作旋转速度。
    • 2. 发明授权
    • Over-voltage protection for voltage regulator modules of a parallel power system
    • 并联电力系统稳压器模块的过电压保护
    • US07787222B2
    • 2010-08-31
    • US11769242
    • 2007-06-27
    • Kevin R. CoviRaymond J. HarringtonRobert P. MakowickiSteven G. ShevachDale F. SoresonBrain C. Tucker
    • Kevin R. CoviRaymond J. HarringtonRobert P. MakowickiSteven G. ShevachDale F. SoresonBrain C. Tucker
    • H02H3/20
    • H02M3/1584H02M1/32
    • A protection circuit for a parallel power system having at least two parallel coupled voltage regulators is disclosed. The protection circuit includes at least two isolation control circuits, each control circuit being coupled to a respective voltage regulator. Each isolation control circuit includes a current sense circuit for sensing current polarity at an output of the respective voltage regulator, and a controller for automatically isolating the respective voltage regulator when an over-voltage condition exists at an output of the parallel power system and a positive current polarity is sensed at the output of the respective voltage regulator. The at least two isolation control circuits isolate only a voltage regulator having positive current outflow during the over-voltage condition. In one embodiment, each isolation control circuit further includes an over-voltage detection circuit for detecting when the over-voltage condition exists at the output of the parallel power system.
    • 公开了一种具有至少两个并联耦合电压调节器的并联电力系统的保护电路。 保护电路包括至少两个隔离控制电路,每个控制电路耦合到相应的电压调节器。 每个隔离控制电路包括用于检测各个电压调节器的输出端的电流极性的电流检测电路,以及当在并联电力系统的输出端存在过电压状态时,用于自动隔离相应电压调节器的控制器, 在相应的电压调节器的输出处感测出电流极性。 至少两个隔离控制电路在过电压状态期间仅隔离具有正电流流出的电压调节器。 在一个实施例中,每个隔离控制电路还包括过电压检测电路,用于检测并联电力系统的输出端何时存在过电压状态。
    • 6. 发明授权
    • Over-voltage protection for voltage regulator modules of a parallel power system
    • 并联电力系统稳压器模块的过电压保护
    • US07298601B2
    • 2007-11-20
    • US11199644
    • 2005-08-09
    • Kevin R. CoviRaymond J. HarringtonRobert P. MakowickiSteven G. ShevachDale F. SorensonBrian C. Tucker
    • Kevin R. CoviRaymond J. HarringtonRobert P. MakowickiSteven G. ShevachDale F. SorensonBrian C. Tucker
    • H02H9/00H02H3/20
    • H02M3/1584H02M1/32
    • A protection circuit for a parallel power system having at least two parallel coupled voltage regulators is disclosed. The protection circuit includes at least two isolation control circuits, each control circuit being coupled to a respective voltage regulator. Each isolation control circuit includes a current sense circuit for sensing current polarity at an output of the respective voltage regulator, and a controller for automatically isolating the respective voltage regulator when an over-voltage condition exists at an output of the parallel power system and a positive current polarity is sensed at the output of the respective voltage regulator. The at least two isolation control circuits isolate only a voltage regulator having positive current outflow during the over-voltage condition. In one embodiment, each isolation control circuit further includes an over-voltage detection circuit for detecting when the over-voltage condition exists at the output of the parallel power system.
    • 公开了一种具有至少两个并联耦合电压调节器的并联电力系统的保护电路。 保护电路包括至少两个隔离控制电路,每个控制电路耦合到相应的电压调节器。 每个隔离控制电路包括用于检测各个电压调节器的输出端的电流极性的电流检测电路,以及当在并联电力系统的输出端存在过电压状态时,用于自动隔离相应电压调节器的控制器, 在相应的电压调节器的输出处感测出电流极性。 至少两个隔离控制电路在过电压状态期间仅隔离具有正电流流出的电压调节器。 在一个实施例中,每个隔离控制电路还包括过电压检测电路,用于检测并联电力系统的输出端何时存在过电压状态。