Hamilton Sundstrand Corporation

Christopher Derek Thornton

Adrian E Vandergrift

Brennan Fox

Kevin C Peterson

Timothy Arn Goodrich

Daniel Knope

Richard T Wetzel

Francisco X Romo

Benjamin Fisher

Dana A Sievert

Michael Congdon

Ronald J Gadow

Christopher Gillette

Kevin C Petersen

A voltage driver includes a voltage input. A voltage regulation controller is operatively connected to receive input voltage from the voltage input and includes an on/off input. The voltage regulation controller is configured to control a switching converter in a first mode, a second mode, at least one buck mode, and at least one boost mode. The switching converter is configured to operate as an open pass switch in the first mode, configured to operate as a closed pass switch in the second mode, configured to operate as an overcurrent and overvoltage protection switch in the at least one buck mode, and configured to operate as an undercurrent and undervoltage protection switch in the at least one boost mode.

Buck-boost converter for contactor drive

In accordance with at least one aspect of this disclosure, an isolated drive (e.g., for a generator controller) includes a gate driver configured to operatively connect to a switch to drive the switch between a first state and a second state, a transformer configured to power the gate driver and provide an ON/OFF signal to the gate driver, an input line configured to connect a first side of the transformer to the gate driver, and a floating return line configured to connect a second side of the transformer directly to a source terminal of the switch such that parasitic currents from the transformer and/or drive circuit bypasses the gate driver and flows to the floating return line.

Parasitic immune isolated drive

System and methods for providing power to a generator control circuit are provided. Aspects include a generator, a first power converter comprising a first input and a first output, the first input coupled to an output of the generator and the first output coupled to a valve circuit, a second power converter comprising a second input and a second output, the second input coupled to the output of the generator and the second output coupled to the valve circuit, and a controller configured to monitor a characteristic associated with the generator, cause the first power converter to provide power to the valve circuit when the characteristic of the generator is within a first range of characteristic values, and cause the second power converter to provide power to the valve circuit when the characteristic of the generator is within a second range of characteristic values.

Low-power bias supply to facilitate the low-RPM startup of three-phase AC aircraft generators

A generator control unit includes a plurality of permanent magnet generator (PMG) inputs, a transformer including a multi-configuration input winding and at least one output winding. Each PMG input in the plurality of PMG inputs is connected to the multi-configuration input winding at a corresponding input winding input.

Uniform generator control unit including multiple permanent magnet generator inputs

A voltage driver includes a voltage input, a voltage regulation controller including an on/off input. The voltage regulation controller is configured to control a switching converter in a first mode, a second mode, and at least one additional mode. The switching converter is configured to operate as an open pass switch in the first mode, is configured to operate as a closed pass switch in the second mode, and is configured to operate as an overcurrent and overvoltage protection switch in the at least one additional mode. A discrete output driver control and monitoring circuit can be used to control the switching converter. The output driver control and monitoring circuit includes a controller coupled to a communication bus and is configured to provide high level control instructions to the communication bus.

Voltage regulator including a buck converter pass switch

A voltage driver includes a voltage input and a voltage regulation controller with an on/off input. The voltage regulation controller is configured to control a switching converter in a first mode and a second mode. The switching converter is configured to operate as an open pass switch in the first mode and configured to operate as a closed pass switch in the second mode. The switching converter includes an inductive load control switch.

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Saint Charles, IL, United States of America

Christopher Derek Thornton