The grid-controlled rectifier with zero-point anode

This paper describes new grid-controlled rectifier circuits, called ¿zero-anode¿ or ¿neutral-point anode¿ circuits, in which the rectifiers have an auxiliary anode connected to the mid-point of the main power transmforer. Formulÿ and curves are given for the computation fo the d.c. component fo the rectified current, the main power factory, the displacement factor, the overload capacity, and the amplitudes of the harmonics, of these circuits. They prove that such circuits possess many valuable qualities which are lacking in the circuits usually employed.