Synchronized isolated AC-AC converter with variable regulated output voltage

摘要

In an AC-AC converter comprising a primary side, a secondary side and a regulator, wherein the regulator comprises a voltage regulation circuit configured to determine an error voltage based on an at least partially alternating feedback voltage fed into the regulator from the secondary side of the AC-AC converter and to supply this error voltage and/or an information about this error voltage to the primary side of the AC-AC converter, the regulator comprises an averaging circuit configured to determine an average DC voltage based on the feedback voltage.