PQSine® - Active Harmonic Filter and Power Optimizer Tech Notes Product Top Page Search by Part No. Search by Characteristics Catalog Tech Notes Technical Support Tools more Product Top Page Search by Part No. Search by Characteristics Catalog Tech Notes Technical Support Tools Product Top Page Search by Part No. Search by Characteristics Catalog Tech Notes Technical Support Tools Applications & Cases TDK improves power quality in the petrochemical industry Other Contents Product Information Product Overview General Technical information Application Note