Abstract: Systems and methods for thermal management using matrix coldplates are disclosed. One illustrative method may comprise directing a flow of coolant through a coldplate comprising a plurality of parallel passages by selectively connecting portions of the parallel passages to one another to create one or more regions of parallel flow, serial flow, or blocked flow in the coldplate. Selectively connecting portions of the parallel passages may comprise machining a plurality of transverse passages into the cold plate such that each of the transverse passages intersects at least some of the parallel passages. Valves may be installed to interact between the parallel and transverse passages to create and modify the different flow regions.

Abstract: A dual voltage power system for selectively providing direct current (DC) at two different voltages. The system includes a plurality of universal rectifiers each of which may be configured to operate under a plurality of operating modes using a plurality of switches which may be controlled by a power shelf controller.

Abstract: An apparatus comprising a first rectifier, wherein an output of the first rectifier is coupled to a first terminal, a second rectifier, wherein an output of the second rectifier is coupled to a second terminal, a first electronic switch configured to selectively route an alternating current (AC) signal to the first rectifier or the second rectifier, an inverter configured to operate in the event that the first electronic switch does not receive the AC signal to receive a direct current (DC) signal, and convert the DC signal to a second AC signal, a second electronic switch configured to selectively route the DC signal from the first terminal or the second terminal to the inverter, and a third electronic switch configured to selectively route the second AC signal to the first rectifier or the second rectifier.

Abstract: A dual voltage power system for selectively providing direct current (DC) at two different voltages. The system includes a plurality of universal rectifiers each of which may be configured to operate under a plurality of operating modes using a plurality of switches which may be controlled by a power shelf controller.

Abstract: An apparatus comprising a first rectifier, wherein an output of the first rectifier is coupled to a first terminal, a second rectifier, wherein an output of the second rectifier is coupled to a second terminal, a first electronic switch configured to selectively route an alternating current (AC) signal to the first rectifier or the second rectifier, an inverter configured to operate in the event that the first electronic switch does not receive the AC signal to receive a direct current (DC) signal, and convert the DC signal to a second AC signal, a second electronic switch configured to selectively route the DC signal from the first terminal or the second terminal to the inverter, and a third electronic switch configured to selectively route the second AC signal to the first rectifier or the second rectifier.