Six-phase Half-wave Rectifier

Such a rectifier can be operated from a 3-phase supply using a transformer with three centre-tapped secondary windings with all the centre tap connected together as shown in figure. Obviously, each diode conducts for one-sixth of a cycle. The output voltage has a mean value of 0.955 VSM (less the voltage drop in the diode). Ripple has a very small value and a fundamental frequency six times the supply frequency.

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