Invention Grant
- Patent Title: High-efficiency-direct-drive cryocooler driver
- Patent Title (中): 高效率直接驱动的低温冷却器驱动器
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Application No.: US13432773Application Date: 2012-03-28
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Publication No.: US08970158B1Publication Date: 2015-03-03
- Inventor: Louis David Chowning
- Applicant: Louis David Chowning
- Applicant Address: US OR Wilsonville
- Assignee: FLIR Systems, Inc.
- Current Assignee: FLIR Systems, Inc.
- Current Assignee Address: US OR Wilsonville
- Agency: Haynes and Boone, LLP
- Main IPC: H02P23/00
- IPC: H02P23/00 ; H02K41/02 ; F25B1/02

Abstract:
In one embodiment, a cryocooler drive circuit for a cryocooler motor is provided that includes: a first switching power converter configured to track a first sinusoidal input voltage signal to provide a first sinusoidal output voltage signal at a first output node; and a second switching power converter configured to track a second sinusoidal input voltage signal to provide a second sinusoidal output voltage signal at a second output node, wherein the second sinusoidal input voltage signal is an inverted version of the first sinusoidal input voltage signal such that the cryocooler motor is driven by an alternating current flowing between the first and second output nodes.
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