Field effect transistor multivibrator

Details Field effect transistor multivibrator Field effect transistor multivibrator

1979-02-28

1982-03-23

Dixon, Harold A.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307279, 307304, H03K 3284

Patent

active

043214843

ABSTRACT:
Disclosed is a field effect transistor multivibrator for generating a controlled pulse width waveform. The generated waveform has fast rise and fall times and a pulse width linearly controlled by the capacitor in one of the cross-coupling paths. An input signal is applied to a first inverter which provides its output to a cross coupled pair of transistors. The first of the cross coupled transistors has its gate electrode coupled directly to the drain electrode of the second transistor which in turn is connected to the output terminal. The cross coupling path from the drain of the first transistor to the gate of the second cross coupled transistor includes a capacitor and a grounded gate depletion mode field effect transistor as well as an additional transistor providing a connection between the capacitor and ground potential. The second of the two cross coupled transistors has its gate and also its drain electrode connected to a fixed potential by means of respective depletion mode field effect load transistors.

REFERENCES:
patent: 1288391 (1969-02-01), Mostyn
patent: 3562559 (1971-02-01), Akrapp
patent: 3578989 (1971-05-01), Heuner
patent: 3719835 (1973-03-01), Eberhard
patent: 3996482 (1976-12-01), Lockwood
patent: 4039861 (1977-08-01), Heller et al.

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