The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2026
Filed:
Jan. 23, 2023
Lti Holdings, Inc., Pleasanton, CA (US);
Eric Zahl, Saint Helens, OR (US);
LTI Holdings, Inc., Pleasanton, CA (US);
Abstract
A hybrid controller for a thermal control unit for controlling the temperature of a device under test (DUT) is described that uses information from an in independent heat-injecting control loop as a fast-responding proxy for relative changes in DUT test head load. This information provides additional feedback to the refrigeration sub-system's controller(s), resulting in achieving the overall system goal of temperature control of the DUT over a wide range of set point temperatures and the rapidly changing DUT head load.
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