Rectifier voltage control

Lack of voltage control is one of the objections which have been made to the use of rectifiers. The author describes a method of voltage control for rectifiers based on the use of a saturated core interphase transformer. Saturation of this device produces a gradual change from two three-phase rectifiers operating in parallel to one six-phase rectifier which has a higher inherent voltage ratio. The theory of operation is discussed and supporting oscillograms and observed regulation curves are shown.