The Bifilar and Auxiliary type converter type
dissipate some or all of the stored magnetic energy
using external resistor, a phase resistor, or both. Then
the remaining energy is transferred as mechanical
energy So, nothing from the stored magnetic energy in the
phase winding is returned to the power supply or DClink
capacitor. Bifilar and Auxiliary type converter is
shown in Fig. 5 and Fig. 6 respectively