Circuit for generating a sawtooth-shaped current

Details Circuit for generating a sawtooth-shaped current Circuit for generating a sawtooth-shaped current

1982-04-05

1985-04-23

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

H01J 2970, H01J 2976

Patent

active

045132283

ABSTRACT:
A circuit for generating a sawtooth-shaped current through a coil, a plurality of periodically operated switches being arranged in series, by means of which switches the coil is connected to a trace capacitor during the trace period. During the retrace period, the switches are made non-conductive substantially simultaneously and a supply source produces supply energy for replenishing losses. A retrace capacitor is arranged in parallel with each switch and the supply source is connected in parallel with a number of series-arranged switches which is smaller than the total number of switches. The trace voltage is higher than the voltage of the source.

REFERENCES:
patent: 4206388 (1980-06-01), Ishigaki et al.
patent: 4361785 (1982-11-01), Stapleton

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