To make it possible to reduce the harmonic level even if the harmonic wave exceeds the maximum harmonic wave to which a pump or any reflector is tuned, by insulating a composite harmonic current demand arising from a full-wave rectification process from an AC power supply through the reflector in a reflector-pump network.

A reflector-pump network 10 is placed between an AC power supply 12 and an AC-to-DC rectifier 18. The AC-to-DC rectifier 18 generates a composite harmonic current demand from the AC power supply 12. A two-terminal pump 16 functions as a current generator that saturates the composite harmonic current request produced by the AC-to-DC rectifier 18. As a result, almost all the composite harmonic current requests produced by the AC-to-DC rectifier 18 are saturated with accumulated energy held by the pump 16; therefore, they are prevented from occurring at the AC power supply 12. Consequently, the composite harmonic current requests arising from the processes of full-wave rectification by the AC-to-DC full-wave rectifier 18 are saturated by the pump 16 within the network 10 and are insulated from the AC power supply 12 by the reflector 14 within the network 10.