Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1987-09-03
1989-03-14
Sikes, William L.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307246, 307296R, G06G 710, G06G 711
Patent
active
048126861
ABSTRACT:
A class B or class C pulsed RF transistor amplifier having a passive LC energy storage network. The capacitors of the network are charged to a safe non-operating voltage substantially higher than the operating voltage. The inductances and capacitances of the network are sized so that the capacitors discharge with decreasing frequency; and the capacitor nearest the transistor discharges rapidly to the operating voltage during the first part of each pulse. The pulsed amplifier eliminates the need for a line-type modulator which would otherwise be required to modulate voltage to the switching transistor to prevent transistor breakdown.
REFERENCES:
patent: 2666817 (1954-01-01), Raisbeck et al.
patent: 3571614 (1971-03-01), Rolstead
"Fault-Current in Power-Conditioning Units Using Power Transistors", by P. D. Evans, IEE Proc., vol. 128 P & B, No. 6, Nov. 1981.
Roseen Richard
Sikes William L.
Sutcliff W. G.
Westinghouse Electric Corp.
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