Amplitude adjusting

A representative application is the heating control of industrial high temperature furnaces.

Because current and voltage are in phase, only real power is taken from the mains for amplitude control.

The continuous current flow causes a mild operation of the used heater elements and consequently significant longer lifetimes are realized.

Especially the surface damage of the heater elements at thresholds can be reduced.

Reactive power compensation is not required, reducing equipment costs.

The amplitude of the supply current rises with increasing power consumption of the load.
The sinus oscillation does not change.