Thermo-electric cooled oven controlled crystal oscillator

Details Thermo-electric cooled oven controlled crystal oscillator Thermo-electric cooled oven controlled crystal oscillator

1998-10-21

2000-12-26

Pascal, Robert

Oscillators

With outer casing or housing

With temperature modifier

331158, 331176, H03B 100

Patent

active

061666084

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.

REFERENCES:
patent: 4893097 (1990-01-01), Zwack
patent: 5729181 (1998-03-01), Cutler et al.

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