  The circuit presented in this paper aims at providing three 40 Vpp 50Hz AC
voltages sources with 120-degree phase separation between them. This is a fully
analogue circuit that uses standard, low-cost electronic components without
resorting to a microcontroller as previously proposed by Shirvasar et al [1].
This circuit may serve as a basis for a low-voltage 3P-AC power supply that
students may safely use to realize experiments, i.e. about the principles and
applications of three-phase AC power lines, without the risk of electric
shocks.
