Patent Number: 6,166,608

Title: Thermo-electric cooled oven controlled crystal oscillator

Abstract: The present invention is a stabilized oscillator system comprising an oven controlled crystal oscillator positioned inside an insulated housing. Within the insulated housing, there is a cold plate in thermal contact with the oven controlled crystal oscillator and a thermo-electric cooler in contact with the cold plate. A heat sink external to the insulated housing is in thermal contact with the thermo-electric cooler. The thermo-electric cooler pumps heat into or out of the oven controlled crystal oscillator through the cold plate and into or out of the heat sink. The thermo-electric cooler is controlled as part of a feedback loop which attempts to stabilize the output frequency of the oven controlled crystal oscillator.

Inventors: Merriss; Morley M. (Montara, CA), Zampetti; George P. (Livermore, CA)

Assignee: Symmetricom, Inc.

International Classification: H03L 1/02 (20060101); H03L 1/04 (20060101); H03L 1/00 (20060101); H03B 001/00 ()

Expiration Date: 12/26/2017