Tangent corrected saw-tooth voltage generator - has output amplifier controlled by vertical frequency saw-tooth voltage with gain control by parabolic voltage

摘要

The generator is intended for vertical deflection of the electron beam in a television apparatus. The vertical frequency sawtooth voltage and a reference voltage are applied to the base of a first transistor and the reference voltage is also applied to the base of a second transistor. Both transistor emitters are connected through a resistor each to a constant current source, connected by its other terminal to the reference potential. These emitters are also connected with each other by two diodes in series opposition, and their junction point is connected through a resistor to a supply voltage, and through a second resistor to a source of vertical frequency parabolic voltage. The first transistor collector is connected to the tangent corrected sawtooth voltage output.