Circuit for obtaining saw-tooth current in a coil

摘要

A line output stage for providing a saw-tooth current in a deflection coil contains a switching circuit between the terminals of the supply source and the terminals of the deflection circuit. The switching circuit acts to reduce the voltage at terminals during the part of the cycle when the transistor is conducting, and so as to increase the voltage during the part of the cycle when the transistor is not conducting. As a result, the voltage at the terminals of the trace capacitor is reduced.