Litton Systems, Inc.

Teledyne Flir Commercial Systems, Inc.

Jeff Becker

Robert D Curby

Sean Tauber

George H McCammon

Tadashi Horikiri

Tim Richmond

Techniques are disclosed for systems and methods to control operation of a cryocooler/refrigeration system to provide cryogenic and/or general cooling of a device or sensor system. A cryocooler controller includes a motor driver controller configured to generate motor driver control signals based on operational parameters corresponding to operation of a cryocooler controlled by the controller, and a motor driver configured to generate corresponding drive signals to drive a motor of the cryocooler. The motor driver includes a first stage with a first pair of switches coupled serially between an input of the motor driver and a ground of the motor driver, a second pair of switches coupled serially between an output of the first stage and the ground of the motor driver, and an inductor coupled between the first and second pairs of switches, where operation of each switch is independently controlled by the motor driver control signals.

Cryocooler controller systems and methods

Spurious pulses are eliminated in the output of a comparator performing analog to digital conversion by addition of logic which eliminates pulses having a width less than a selected width from the output of the comparator.

Comparator digital noise filter

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Goleta, CA, United States of America

Jeff Becker