... .3DSP+CPLD full digital control,efficiency>97%. Active Harmonic Filter 25AHigh efficiency Three level topology, reduce power components consumption, ... can reach 97%.THDi<5%Advanced software algorithms, can filter 2~50th harmonics at the same time.Compensating times can ... users can be aware of more information and set the system.ReliableChips, Semiconductors, Capacitors are from Germany, USA and Japan ...