PEREC Outlin 4. 1 AC voltage controllers 4.2 Other ac controllers 4.3 Thyristor cycloconverters 4.4 Matrix converters 5Power Electron cs i 5 Outline Outline 4.1 AC voltage controllers AC voltage controllers 4.2 Other AC controllers 4.2 Other AC controllers 4.3 Thyristor cycloconverters 4.3 Thyristor cycloconverters 4.4 Matrix converters 4.4 Matrix converters