Oscillators – Solid state active element oscillator – Transistors
Patent
1975-10-30
1977-01-04
Grimm, Siegfried H.
Oscillators
Solid state active element oscillator
Transistors
331109, 331176, H03K 3353
Patent
active
040017214
ABSTRACT:
In an oscillation circuit wherein three or a greater odd number of inverters each of which is composed of a load FET and a driving FET are connected in cascade, a capacitor is connected between the input and output of at least one of the inverters so as to construct a Miller integrator, and the output of the final-stage inverter is connected to the input of the first-stage inverter, the improvement comprising the fact that impedance means, such as resistance, which has a positive temperature coefficient is connected in series with the capacitor, whereby the oscillation frequency of the oscillation circuit is prevented from fluctuating due to a change of the ambient temperature.
REFERENCES:
patent: 3348167 (1967-10-01), Gauld
patent: 3851277 (1974-11-01), Suzuki et al.
patent: 3863179 (1975-01-01), Goo
patent: 3878482 (1975-04-01), Schowe, Jr.
Grimm Siegfried H.
Hitachi , Ltd.
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