Oscillator based on thermal diffusion

Details Oscillator based on thermal diffusion Oscillator based on thermal diffusion

2011-04-05

2011-04-05

Kinkead, Arnold (Department: 2817)

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

C331S066000, C331S175000

Reexamination Certificate

active

07920032

ABSTRACT:
An oscillator device for generating an oscillator signal, includes a heater arrangement, a first switching element, a temperature sensor, signal process means, and voltage controlled oscillator; an output of the temperature sensor being connected to an input of the signal processing means, and an output of the signal processing means being connected to an input of the voltage controlled oscillator. The first switching element is arranged for receiving the oscillator signal from the voltage controlled oscillator and for providing a heater drive signal to either a first heater element or a second heater element of the heater arrangement based on the oscillator signal. The signal processing means comprise a synchronous demodulator.

REFERENCES:
patent: 4243949 (1981-01-01), Saul et al.
patent: 4646035 (1987-02-01), Chapelle
patent: 5041800 (1991-08-01), Long et al.
patent: 6121848 (2000-09-01), Sauer
Szekely et al. “Test Structure for Thermal Monitoring”, In. Proc. of the 1996 IEEE International Conference on Microelectronic Test Structures, vol. 9, Mar. 1996, pp. 111-115.
Szekely et al. “Thermal Test and Monitoring”, In. Proc. of the 1995 IEEE European Design and Test Conference, 1995, p. 601.

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