Power Integrations (POWI) came out with quarterly earnings of $0.40 per share, beating the Zacks Consensus Estimate of $0.36 per share. This compares to earnings of $0.46 per share a year ago. These figures are adjusted for non-recurring items.This quarterly report represents an earnings surprise of 11.11%. A quarter ago, it was expected that this maker of integrated circuits used for power conversion would post earnings of $0.26 per share when it actually produced earnings of $0.28, delivering a surprise o ...