Abstract: A transient voltage suppressor device includes a transient voltage suppression circuit, a first voltage monitor lead connected to the transient voltage suppression circuit, and a second voltage monitor lead connected to the transient voltage suppression circuit. A voltage injection circuit having a plurality of output voltage levels is also connected to the transient voltage suppression circuit to provide indication via the first and second voltage monitors if the transient voltage suppression circuit is shorted or open.

Abstract: A transient voltage suppressor device includes a transient voltage suppression circuit, a first voltage monitor lead connected to the transient voltage suppression circuit, and a second voltage monitor lead connected to the transient voltage suppression circuit. A voltage injection circuit having a plurality of output voltage levels is also connected to the transient voltage suppression circuit to provide indication via the first and second voltage monitors if the transient voltage suppression circuit is shorted or open.

Abstract: Embodiments are directed to coupling a first transformer to a first load, coupling a second transformer to a second load, applying a single phase power source to the first transformer, applying an inverted version of the power source to the second transformer, coupling a sensing circuit to the first and second transformers, and monitoring, by the sensing circuit, signal contributions associated with the first and second transformers.

Abstract: Embodiments are directed to coupling a first transformer to a first load, coupling a second transformer to a second load, applying a single phase power source to the first transformer, applying an inverted version of the power source to the second transformer, coupling a sensing circuit to the first and second transformers, and monitoring, by the sensing circuit, signal contributions associated with the first and second transformers.

Abstract: A rotary switch for providing deicing power to the heaters of a helicopter rotor includes a conductive rotor with conductive protrusions located thereon. Conductive fingers are arranged such that a pair of conductive fingers are in electrical communication with a pair of conductive protrusions for a given position of the conductive rotor. The pair of conductive fingers are in electrical communication with the heaters of a helicopter rotor such that if one the pair of electrical fingers fails to make electrical contact with its respective conductive protrusion electrical power is still delivered to the heater.