Abstract: Methods and apparatus for reducing electromagnetic interference (EMI) in power conversion stage line filter are provided herein. The method, for example, includes determining an estimated ripple voltage or estimated ripple current using a predictive model, generating a ripple cancellation signal of opposite polarity to the estimated ripple voltage or ripple current, while compensating for at least one of magnitude or phase distortions in a signal path, and injecting the ripple cancellation signal into a power supply's line filter to reduce a ripple voltage.

Abstract: A method and apparatus for autonomous, automatic interleaving of cycled loads coupled to a grid. In one or more embodiments, the method comprises (i) determining, by a smart load coupled to a grid, a first grid stress value; (ii) comparing, by the smart load, the first grid stress value to an activation threshold; (iii) waiting, by the smart load, when the first grid stress value is less than the activation threshold, a delay period; (iv) determining, by the smart load and after the delay period ends, a second grid stress value; (v) comparing, by the smart load, the second grid stress value to the activation threshold; and (iv) activating, by the smart load, when the second grid stress value is less than the activation threshold.