Prima's Static Voltage Regulator is an IGBT based PWM type buck-boost voltage regulator which has tight regulation and fast correction speed. This is a switching topology where PWM is made directly in AC - to - AC switching, without any harmonic distortion. The power stage is an IGBT chopper control. The chopping frequency is around 40 KHz which ensures absolutely silent operation and pure sine wave output. The Static Voltage Regulator is compatible with all loads as it does not switch any components in the power path.