PEREC classification of frequency converters Phase control: thyristor cycloconverter (Delay angle control) Frequency converter (Cycloconverter) PWM control: matrix converter (Chopping control) 4 Cycloconverter is sometimes referred to in a broader sense -any ordinary ac to ac converter in a narrower sense-thyristor cycloconverterClassification of frequency converters Classification of frequency converters Frequency converter Frequency converter (Cycloconverter Cycloconverter ) Phase control: Phase control: thyristor cycloconverte yristor cycloconverte r (Delay angle control) angle control) PWM control: PWM control: matrix converter matrix converter (Chopping control) (Chopping control) Power Electron cs i Cycloconverter Cycloconverter is sometimes referred to is sometimes referred to – in a broader sense in a broader sense —any ordinary AC to AC converter any ordinary AC to AC converter – in a narrower sense in a narrower sense—thyristor cycloconverter thyristor cycloconverter 4