POWER DISTRIBUTION INC. Patent applications |
Patent application number | Title | Published |
20130032310 | TRANSPORTABLE, ENVIRONMENTALLY-CONTROLLED EQUIPMENT ENCLOSURE - A transportable environmentally controlled equipment enclosure (TECEE), or other equipment enclosure of the type containing racks of heat-generating equipment, may include a pump-less heat pipe cooling system to carry heat away from the equipment, an improved equipment rack system that includes a suspended base supported by rails with multiple latching and/or locking positions, and various improvements related to power distribution, equipment access, internal and external communications, and safety. | 02-07-2013 |
20110288799 | CURRENT METERING AND ABNORMAL EVENT MONITORING SYSTEM - An MMS sensor assembly includes a U-shaped bottom housing that forms a recess in which is received a conductor whose current is to be sensed and a top housing arranged to be removably latched to the bottom housing. At least one magnetic field sensor is situated within the top housing, such the magnetic field sensor is positioned adjacent the conductor when the top housing is latched to the bottom housing, and is removable from the sensor assembly for repair or replacement. Circuitry connected to the magnetic field sensor includes a data storage device to store correction/compensation tables and/or equations for self-calibration or correction of the sensor. | 11-24-2011 |
20110068634 | DIRECT CURRENT POWER SUPPLY FOR MISSION CRITICAL APPLICATIONS - A DC power supply apparatus and method of supplying DC power for mission critical applications utilizes multiple power circuits in one unit, the power circuits being optimizable for efficiency as the load increases or decreases. The individual power supplies may use a multiphase topology within the power circuits, with logic phase shifts between multiphase, and two types of power management circuits arranged in parallel, or an equivalent controller, for implementing: (a) a variable linear or variable exponential precision droop algorithm, and (b) a “virtual bus” or current averaging/active current sharing circuit, the current sharing being provided by a low bandwidth communications link between droop controllers in each of the power circuits. In addition, the droop/paralleling circuitry and/or programmed components may be arranged to implement two types of arc detection and suppression, including: (a) unequal positive and negative current in each power circuit to shut down the output power, and (b) monitoring output current for an arc “signature” to protect against arcs between positive and negative. | 03-24-2011 |