CRT correcting circuit

Details CRT correcting circuit CRT correcting circuit

1991-07-05

1993-01-05

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315371, 315408, 315395, H01J 2951, H01J 2970, G09G 104

Patent

active

051774119

ABSTRACT:
A CRT correcting circuit comprises a correcting deflection coil excited by an alternating signal of a vertical period, a capacitor connected in parallel to the correcting deflection coil to form a resonance circuit, a first field effect transistor of a first conduction type, and a second field effect transistor of a second conduction type. The first and second field effect transistors are turned on and off simultaneously by a pulse signal of a horizontal period. The CRT correcting circuit is capable of operating at a low power consumption and has a simple circuit construction.

REFERENCES:
patent: 3743882 (1973-07-01), Kroner et al.
patent: 3949269 (1976-04-01), Wheeler
patent: 4097784 (1978-06-01), Fischman et al.
patent: 4814671 (1989-03-01), Oguino et al.
patent: 4864197 (1989-09-01), Fitzgerald
patent: 4906904 (1990-03-01), Togoni

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