Step transition time reduction for filtered oscillators

Details Step transition time reduction for filtered oscillators Step transition time reduction for filtered oscillators

1988-07-15

1989-05-02

Mis, David

Oscillators

With frequency adjusting means

Step-frequency change

331 96, H03B 712

Patent

active

048272272

ABSTRACT:
A step transition time reduction technique for a YIG oscillator having a capacitive filter uses an inverse transfer function to produce a predistorted drive step signal from an input drive step signal, the predistorted drive step signal being used to drive the YIG oscillator. The inverse transfer function uses R,L,C values from the oscillator circuit to generate an intermediate step in the input drive step signal, the value of the step being determined by a factor k=1/(1+e.sup.-a*pi/b) and the duration of the step being determined by a delay time dt=pi/b, where a=R/(2L) and b=(1/(LC)-R.sup.2 /(4L.sup.2)).sup.1/2.

REFERENCES:
patent: 4672632 (1987-06-01), Andersen

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