Harris Corporation

Gary Anton Schwenck

Mark Chamberlain

John Robert McIntyre

John Paul Shoots

Timothy Vogl

A switching circuit may include a first series diode, a second series diode, a first shunt diode coupled to the first series diode at a first control node, and a second shunt diode coupled to the second series diode at a second control node. A high voltage supply may generate a high voltage signal to be selectively applied to either the first or second control node. A dc-dc converter may cooperate with the high voltage supply to generate an intermediate bias voltage on the first and second shunt diodes so that the first series diode is reversed biased and the first shunt diode is forward biased when the high voltage control signal is applied to the first control node, and so that the second series diode is reversed biased and the second shunt diode is forward biased when the high voltage control signal is applied to the second control node.

Switching circuit including DC-DC converter cooperating with a high voltage supply and related methods

A circuit () is provided that is connectable between input lines () and output lines (). The circuit is comprised of a primary battery () and a hold-up battery (). The hold-up battery is connected in parallel with the primary battery. The circuit is further comprised of an RC circuit () connected in parallel with the primary battery and is isolated from the hold-up battery by unidirectional current valves (). A comparator is provided with a first input () coupled to the RC circuit and a second input () coupled to a voltage reference. A switching device () is provided that is controlled by an output of the comparator. The switching device connects the hold-up battery to output lines in a first state and disconnects the hold-up battery from output lines in a second state. The unidirectional current valves prevent reverse leakage current from the hold-up battery from charging a capacitor during a discharge period of the RC circuit.

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Webster, NY, United States of America

Gary Anton Schwenck