Circuit for generating a saw tooth waveform

Details Circuit for generating a saw tooth waveform Circuit for generating a saw tooth waveform

1976-12-03

1978-08-29

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315399, H01J 2970

Patent

active

041106660

ABSTRACT:
A circuit for generating a saw tooth waveform in a coil such as the deflection coil of a television picture tube, comprising a first circuit branch including a capacitor serving as an energy storing current source and a controllable rectifier, and a second circuit branch including another current source, a second controllable rectifier and a resonant circuit comprising two reactances, constituted by an inductance and a capacitor which are connected in circuit by the second controllable rectifier and act to draw current from the two sources away from the deflection coil when the second controllable rectifier is fired whereby to initiate the flyback portion of the saw tooth waveform.

REFERENCES:
patent: 3449623 (1969-06-01), Dietz
patent: 3778670 (1973-11-01), Nagai
patent: 3784871 (1974-01-01), Vacher
patent: 3950673 (1976-04-01), Gries

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