An energy recovery driving circuit of the present invention has a resonant
inductor, a primary coil and at least one secondary coil of a
transformer, and an energy recovery unit. The resonant inductor is
connected to the load for allowing a charge and/or discharge current to
be applied to the load to flow through the resonant inductor. The primary
coil is connected to the resonant inductor, and is connected to both the
resonant inductor and the load so as to allow the charge and/or discharge
current to flow through the primary coil when the charging and/or
discharge current flows through the load. The secondary coil is coupled
to the primary coil. The energy recovery unit generates a current
according to the predetermined number of turns of the secondary coil to
allow the current flowing through the secondary coil to be recovered to a
supply voltage source.