Eaton Intelligent Power Limited

Gary Bradley King

David Zheng

Justin Raymond Hoglund

Mengbin Yang

Edin Vajzovic

Justin Raymond Hogland

An uninterruptible power supply (UPS) system includes an enclosure and a plurality of power converter modules positioned in the enclosure, each power conversion module including a power converter circuit, a module controller circuit configured to control the power converter circuit and at least one module fan controlled by the module controller circuit. The system further includes a system controller positioned in the enclosure and configured to communicate with the module controller circuits over a communications bus and at least one exhaust fan configured to exhaust air from the enclosure and controlled by the system controller. The system controller is configured to control the at least one exhaust fan responsive to information, such as temperature and/or load information, received from the module controller circuits.

Equipment enclosure fan control systems and methods

Power control systems are provided including a digital controller configured to control gating mechanism for power switches responsive to an input from a power conversion circuit. The digital controller includes a conversion circuit, a modulation circuit and a gating control circuit. The system further includes an analog circuit comprising a filter, a current limiter and a compare circuit. The current limiter is configured to control a magnitude of a current pulled through a power convertor during a device switching operation.

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Raleigh, NC, United States of America

Gary Bradley King