Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1974-08-02
1976-03-23
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307235J, 307296, H03K 1700
Patent
active
039462536
ABSTRACT:
A circuit is disclosed for generating a periodic pulse train having any fixed desired duty cycle from a periodic input signal which may be either analog or digital. The input signal is fed to a transistor amplifier whose bias can be varied. The output of the transistor amplifier is coupled to an amplifying element whose possible voltage swing is limited to provide the desired pulse train. The desired pulse train from the amplifying element is coupled through a low-pass filter prior to comparison with a reference voltage in a differential amplifier. The voltage difference at the output of the differential amplifier adjusts the bias of the transistor amplifier such that the voltage of the low pass filtered desired pulse train is very close to the reference voltage.
REFERENCES:
patent: 3206689 (1965-09-01), Santana
patent: 3292096 (1966-12-01), Deneen, Jr.
patent: 3484704 (1969-12-01), Hungerford
patent: 3488604 (1970-01-01), Smilowitz
Davis B. P.
Hill Alfred C.
International Standard Electric Corporation
Lombardi, Jr. Menotti J.
Miller, Jr. Stanley D.
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