Circuit arrangement for obtaining a sawtooth current in a coil

Details Circuit arrangement for obtaining a sawtooth current in a coil Circuit arrangement for obtaining a sawtooth current in a coil

1977-02-01

1978-10-24

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252J, 307282, 328 65, 328223, 315408, H03K 483

Patent

active

041223632

ABSTRACT:
A circuit arrangement for obtaining a periodic sawtooth current in a coil, particularly in a deflection coil of a kinescope, is described. The circuit arrangement comprises a first, unidirectional conductivity device, disposed in parallel to a circuit branch comprising the deflection coil, and a second, controllable switching device, having a control electrode connected to a source of periodic pulses which render conductive the second device during a part of the period of the sawtooth. The main feature of the circuit arrangement is to comprise a resonant series circuit disposed in parallel to the second device; the second device and the resonant series circuit are connected to the deflection coil and to the first device at least through a third, unidirectional conductivity device.

REFERENCES:
patent: 2946958 (1960-07-01), Boniaet al.
patent: 3179843 (1965-04-01), Schwartz
patent: 3333120 (1967-07-01), Tomlin
patent: 3363184 (1968-01-01), Smith
patent: 3863106 (1975-01-01), Haferl
patent: 3993931 (1976-11-01), Hollander

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