Deflection circuit for a television picture tube

摘要

A deflection circuit for a television picture tube comprises a horizontal generator producing a first, symmetrical output current. A corrective current is generated from the first output current. The corrective current and the first output current change in value oppositely to one another at times. A vertical generator produces a second output current. The second output current and the corrective current are summed to form a composite current having a stairstep configuration. An amplitude control circuit for the composite current adjusts horizontal segments of the stairstep. A composite control signal for the amplitude control circuit is developed from the horizontal and vertical generators. A vertical sweeping coil is coupled to the amplitude control circuit and controlled by the composite current.