Digital phase shifter with function of outputting adjustable three-phase power

The invention relates to a teaching experiment device, and discloses a digital phase shifter with an adjustable three-phase power output function, which comprises a pulse isolation circuit module and an intelligent power supply module, the MCU control circuit module outputs an SPWM signal to the pulse isolation circuit module; the pulse isolation circuit module carries out isolation protection on circuit signals, the intelligent power supply module outputs phase angle and voltage amplitude adjustable AC voltage signals and transmits the phase angle and voltage amplitude adjustable AC voltage signals to the AC signal output module, and the AC signal output module transmits the received AC voltage signals to the AC sampling module. The circuit has an over-current protection function; the output front end of the phase shifter is electrically isolated by the isolation transformer, so that the personal safety and the power utilization safety are further ensured, and the short circuit condition is prevented; the ou