Mechanical resonator oscillator having redundant parallel drive

Details Mechanical resonator oscillator having redundant parallel drive Mechanical resonator oscillator having redundant parallel drive

1979-06-29

1980-12-16

Grimm, Siegfried H.

Oscillators

Electromechanical resonator

331183, 331 56, H03B 530

Patent

active

042400473

ABSTRACT:
A mechanical oscillator of the type which includes a mechanical resonator and a resonator driver connected in a regenerative signal loop in which the driver receives the resonant frequency signal of the resonator and provides, in response thereto, a constant magnitude drive signal of equal frequency and supporting phase to the resonator to maintain a minimum amplitude for the resonant frequency signal, is provided with dual resonator drivers actively connected in parallel in the regenerative loop, each providing through a load sharing network a proportionate amount of the total drive signal magnitude in complement with that provided by the other, and each providing the full drive signal magnitude in the presence of a failure of the other.

REFERENCES:
patent: 3242442 (1966-03-01), Ishimoto et al.
patent: 3293562 (1966-12-01), Hahnel
patent: 3504301 (1970-03-01), Hetzel

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