Line output stage

Details Line output stage Line output stage

1977-11-28

1979-07-17

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315408, H01J 2956

Patent

active

041616758

ABSTRACT:
A line output stage comprising a first parallel resonant circuit including a horizontal deflection coil and a capacitor, one side of the first resonant circuit being connected to ground and the other side of the first resonant circuit being returned to ground by way of a first diode and a controllable semi-conductor switch, a second diode connected in parallel with the first resonant circuit, a second parallel resonant circuit comprising a second coil having one side connected to a DC power supply terminal and the other side returned to ground by way of the controllable semi-conductor switch, means for applying periodic pilot pulses to the controllable semi-conductor switch and an energy transfer circuit inductively or capacitatively coupled to the said second parallel resonant circuit for transferring energy during each cycle from the second parallel resonant circuit to the first parallel resonant circuit, the said energy transfer circuit including a third diode and means for modulating the power transferred by way of the said diode to the first parallel resonant circuit during each saw tooth cycle.

REFERENCES:
patent: 3906305 (1975-09-01), Nillesen

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