We are responsible for noise elimination for commercial AC power grids.

Capacitor input types are often used in isolated power supplies, and the smoothing capacitor is charged only at the peak of the input AC voltage waveform. At this time, a momentary high current flows, so harmonic components may appear in the AC power grid.

This harmonic component (noise) is restricted by law because it can cause various failures in electronic equipment. In addition, it is obligatory to install a PFC for power supplies of 75W or more.