Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1977-09-23
1979-04-17
Heyman, John S.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307282, 328 65, 328 67, H03K 330, H03K 386
Patent
active
041503074
ABSTRACT:
A regulating charging circuit for the pulse-forming network in a line-type pulse modulator, such as commonly found in pulsed radar systems. A charging inductor is the primary of a transformer, the secondary of which is open-circuited until the resonant charge of the pulsed-forming network reaches a predetermined voltage. At that time, a sensor generates a trigger enabling a solid state device, of the thyristor genera, to connect the secondary of the charging inductor/transformer to a step-up network, including a second transformer. The output of the step-up network is fed through a diode into the filter/storage capacitor of the high voltage power supply from which the charging inductor draws current. The unused charging conductor energy is thereby recovered and used to help recharge the filter/storage capacitor. The combination including the step-up network relieves the thyristor and control circuits from the requirement of controlling high voltages.
REFERENCES:
patent: 3139585 (1964-06-01), Ross et al.
patent: 3328703 (1967-06-01), Lee
patent: 3333120 (1967-07-01), Tomlin
patent: 3363184 (1968-01-01), Smith
patent: 3374443 (1968-03-01), Braum et al.
Heyman John S.
International Telephone and Telegraph Corporation
O'Neil William T.
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