| http://www.w3.org/ns/prov#value | - Apparatus for providing current through an N-phase load, where N is a positive integer, the apparatus comprising:a) means for generating a series of main pulses, the width of each pulse in the series being related to the instantaneous magnitude of an analog signal, b) a pair of main electronic switches associated with each phase of the load, each pair of main electronic switches connected to be co
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