Three-phase signal generation from a single-phase reference signal
K S Dhooria, S.S. Jamuar · Measurement Science and Technology · 1991
The authors consider the conversion of a single-phase reference signal into three-phase signals using a switched-capacitor frequency-independent phase-shifting network. This circuit provides a constant phase-shift of 120 degrees and 240 degrees between 40 and 75 Hz. The phase-shift can be changed by changing the divide-by-N factor or the capacitor values.