Circuit for generating a saw-tooth current in a coil

Details Circuit for generating a saw-tooth current in a coil Circuit for generating a saw-tooth current in a coil

1977-06-08

1979-01-09

Hubler, Malcolm F.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

H01J 2970

Patent

active

041340477

ABSTRACT:
A circuit for generating a saw-tooth current waveform in a coil comprises a parallel resonant circuit, of which the coil in which the saw-tooth current is to be generated forms part. The parallel resonant circuit includes two capacitors in parallel and a first diode, in parallel with one of the capacitors, and in parallel with which is a switching transistor connected via a second diode to the cathode of the first diode. Input energy from a power source is fed to the junction between the second diode and the switching transistor via an inductance which forms a resonant circuit with a further capacitor forming at least part of a reactance in parallel with the second diode.

REFERENCES:
patent: 3906305 (1975-09-01), Nillesen
patent: 3906307 (1975-09-01), Hattum
patent: 3912972 (1975-10-01), Otten et al.
patent: 3950674 (1976-04-01), Joosten et al.
patent: 4024434 (1977-05-01), Joosten et al.

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