1. A linear generator, comprising: a permanent magnet array having at least two magnets arranged end-to-end; a set of conductive coils arranged around the permanent magnet array; a four-phase full wave rectifier configured to accept alternating current inputs from the set of conductive coils and to produce one or more direct current outputs; and a summing circuit configured to aggregate the one or more direct current outputs from the rectifier to produce a combined, rectified direct current output.