Abstract: An arc fault detection system includes a first current sensor, a second current sensor, a band-pass filter, and a comparator module. The first current sensor, the second current sensor, and the comparator module are each connected to the comparator module by direct leads for biasing a current differential between the first current sensor and the second current sensor using a bias calculated from a frequency component indicative of arc events received from the frequency selector.

Abstract: A localized source selection and power conversion power distribution system is described herein. In contrast to legacy systems, where multiple bus tie connectors are coupled between the centralized buses, the localized source selection and power conversion power distribution system is, in general, solely linked by a post conversion link. The localized source selection and power conversion power distribution system is also configured to effectively balance the loads of the aircraft. For example, that any power district can draw power from any power source at any time.

Abstract: A solid state switch module is provided for use in a power distribution network including an input differential protection connection for receiving a measured current value from an upstream module. The solid state switch module also includes an output differential protection connection for sending a measured current value. The solid state switch module includes a trip outlet for sending a trip signal to an upstream solid state switch, and a trip inlet for receiving a trip signal from a downstream solid state switch. The trip inlet is operably coupled to the switch. A current sensor measures the current value of a connected power transmission line across the solid state switch module. A summer adds a current input from a parallel module with the current measures by the current sensor. A comparator determines whether an amount of current lost between the solid state switch module and an upstream module is acceptable.

Abstract: A power conversion and distribution system detects faults by monitoring differential current and differential power at certain locations in the system. Current loss faults are detected based on the monitored differential current, and series arc faults are detected based on the monitored differential power. A system controller may make the fault determinations and disable a power converter circuit of the power conversion and distribution system in response to detection of a fault.

Abstract: A power conversion and distribution system detects faults by monitoring differential current and differential power at certain locations in the system. Current loss faults are detected based on the monitored differential current, and series arc faults are detected based on the monitored differential power. A system controller may make the fault determinations and disable a power converter circuit of the power conversion and distribution system in response to detection of a fault.

Abstract: A multi-phase power control switch has multiple power controller channels, each of which includes at least one power controller having a microprocessor. Each of the microprocessors cross communicates with each other of the microprocessors using a data bus.

Abstract: Naphthyl-containing compounds having structural formula S2R for use in organic light-emitting diodes (OLEDs). R may include an aromatic group, a heterocyclic group, or a group that is both aromatic and heterocylic. In some examples, R is phenyl, biphenyl, and thiophenyl. OLEDs including these compounds are shown to emit in a range between 400 nm and 700 nm. These OLEDs are suitable for devices including televisions, laptop computers, computer monitors, personal digital assistants, mobile phones, portable media players, watches, test devices, advertising displays, information displays, indication displays, and large-area light-emitting elements for general illumination.

Abstract: A printed wiring board (PWB) includes a substrate having first and second opposing surfaces and a busbar coupled to the substrate. The busbar includes a power input connector and a cross-sectional dimension configured and disposed to carry at least 100 amperes. At least one semiconductor device is mounted to the busbar. The at least one semiconductor device includes an input electrically coupled to the busbar and an output. One or more output conductors are electrically coupled to the output of the at least one semiconductor device. The one or more output conductors include a cross-sectional dimension configured and disposed to carry at least 50 amperes.

Abstract: Naphthyl-containing compounds having structural formula S2R for use in organic light-emitting diodes (OLEDs). R may include an aromatic group, a heterocyclic group, or a group that is both aromatic and heterocylic. In some examples, R is phenyl, biphenyl, and thiophenyl. OLEDs including these compounds are shown to emit in a range between 400 nm and 700 nm. These OLEDs are suitable for devices including televisions, laptop computers, computer monitors, personal digital assistants, mobile phones, portable media players, watches, test devices, advertising displays, information displays, indication displays, and large-area light-emitting elements for general illumination.

Abstract: A power distribution system includes multiple uniform power distribution modules and multiple uniform mating connectors. A portion of the mating connectors are connected to the power distribution modules directly and the remainder are connected to the power distribution modules via a ground fault interrupt adapter.

Abstract: An example method of detecting a generator overvoltage condition includes predicting a primary control current to provide a predicted control current, monitoring the primary control current, and detecting a generator overvoltage condition based on a comparison of the predicted control current to the primary control current. The method interrupts the primary control current based on the comparing.

Abstract: A power management and distribution system includes a source block having a power distribution line, wherein the power distribution line includes a distribution switch. At least one load block is in operable communication with the power distribution line and having a plurality of load block power output lines, wherein each of the plurality of load block power output lines includes a load switch. Further included is a plurality of loads each carried power by at least one of the plurality of load block power output lines. Yet further included is a protection logic unit comprising at least one algorithm for comparing a power characteristic to a power characteristic threshold at a plurality of locations, wherein the protection logic unit selectively determines which of the source block switches, distribution switches and the load switches of the plurality of load block power output lines are opened based on at least one comparison.

Abstract: A system comprising a transformer rectifier unit (TRU) and a protection module operatively connected to an alternating current (AC) bus and configured to receive an AC power signal from the AC bus. The protection module is configured to monitor one or more parameters of the AC power signal and is configured to control a protection module output in response to the one or more parameters of the AC power signal. The protection module output is operatively connected to the TRU, which is configured to generate a direct current (DC) output signal. An associated method is also disclosed.

Abstract: A method for controlling an aircraft power system having a plurality of generators includes determining a load set for controlling aircraft power as a function of a number of generators providing power and as a function of a health status of a load to be included in said load set.

Abstract: A solid-state power regulator (SSPR) regulates power delivered to a frequency tolerant load from a wild-source generator. The SSPR includes a solid-state switching device and a controller. The solid-state switching device is turned On to deliver power from the wild-source generator to the frequency-tolerant load and Off to prevent the delivery of power to the frequency-tolerant load. The controller monitors the power delivered to the frequency-tolerant load and selectively modulates the solid-state switching device to regulate the power delivered.

Abstract: A power distribution system includes multiple uniform power distribution modules and multiple uniform mating connectors. A portion of the mating connectors are connected to the power distribution modules directly and the remainder are connected to the power distribution modules via a ground fault interrupt adapter.