Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1973-04-16
1976-11-23
Pellinen, A. D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307 12, 323 22SC, 323 39, H02J 300, H02M 5257, H02M 7155
Patent
active
RE0290483
ABSTRACT:
A circuit for providing a regulated square wave output voltage and a regulated DC output voltage or both. An AC source energizes a switching circuit, having a variable switching rate, which connects a capacitor in voltage clamping relationship to an AC load for both half cycles of the AC voltage thereacross. This switching rate is controlled in accordance with the time accumulation of an electrical quantity, in the present instance the voltage across the AC load. The DC voltage across the capacitor attains a predetermined equilibrium value when the frequency of the AC output voltage is equal to the frequency of the AC source. If the DC capacitor voltage and the AC output voltage derived therefrom deviate from their equilibrium values, as, for example, because of a change in the level of load current, there occur transient changes in the switching rate of the switching circuit which result in changes in the phase displacement between the AC input voltage and the AC output voltage. This phase displacement controls the voltage across an inductor which, in turn, controls the flow of a current which restores the DC capacitor voltage and the amplitude and frequency of the AC output voltage to the desired values while supplying the required power to the AC and DC loads.
REFERENCES:
patent: 3284689 (1966-11-01), Rosa
patent: 3309623 (1967-03-01), Depenbrock
patent: 3385973 (1968-05-01), Abrams et al.
patent: 3668508 (1972-06-01), Archer et al.
Acme Electric Corporation
Pellinen A. D.
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