Methods and circuitry for varying a pulse output of a resonant c

Details Methods and circuitry for varying a pulse output of a resonant c Methods and circuitry for varying a pulse output of a resonant c

1980-09-22

1982-08-17

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307268, 328223, 331117R, 331179, H03K 507

Patent

active

043451659

ABSTRACT:
A pulse generating circuit includes a first trigger circuit including a resistor (43) and transistors (34 and 42) for applying a current pulse to a resonant circuit (capacitor 31-inductor 32) to produce a sinusoidal output pulse having a predetermined width and amplitude, and a second trigger circuit including a resistor (64) and transistors (34 and 67) for applying current to a resonant circuit (capacitors 31 and 33-inductor 32) to produce a sinusoidal output pulse having a second predetermined width. In another embodiment, an inductor (76) contained in a resonant circuit (inductor 76-capacitor 77) is magnetically coupled to the base of a transistor (79) contained in an operate circuit. By selectively connecting various capacitors (99 and 112) and resistors (91 and 114) into the resonant and operate circuits, the overall circuit functions to produce output signals at a first frequency and amplitude and at a second frequency and amplitude or at a third frequency and amplitude when both sets of capacitors and resistors are simultaneously connected.

REFERENCES:
patent: 2848613 (1958-08-01), Green et al.
patent: 3071676 (1963-01-01), Van Sandwyk
patent: 3297963 (1967-01-01), Halsted
patent: 3363198 (1968-01-01), Davies
patent: 3609408 (1971-09-01), Motisher

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