Temperature stabilizer and oscillating apparatus

Details Temperature stabilizer and oscillating apparatus Temperature stabilizer and oscillating apparatus

2007-11-06

2007-11-06

Kinkead, Arnold (Department: 2817)

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

C372S038100, C372S038010, C372S029020

Reexamination Certificate

active

11299721

ABSTRACT:
A temperature stabilizer for accurately stabilizing the temperature of an object is provided. The temperature stabilizer stabilizes the temperature of an object to a reference temperature. The temperature stabilizer includes an oscillator provided in proximity to the object, for generating an oscillation signal having a frequency corresponding to an inputted frequency control signal, a phase detector for detecting the phase difference between a feedback signal based on the oscillation signal and a reference clock signal having a predetermined frequency, a loop filter for generating the frequency control signal to synchronize the feedback signal with the reference clock signal based on the output from the phase detector, a comparator for comparing the value of the frequency control signal with a reference value determined corresponding to the reference temperature and an electric heating converter for heating or cooling the object based on the comparison result from the comparator.

REFERENCES:
patent: 5734469 (1998-03-01), Strandjord
patent: 6529534 (2003-03-01), Yasuda

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