NOVELTY - The converter has two bi-directional converter modules (12, 14) i.e. isolated converter modules, connected in differential configuration and having primary and secondary sides, and a loop controller having an outer voltage loop and an inner current loop with a modulator that controls modulation of switches via a modulator referenced by an inner current loop and including different fundamental and harmonic voltage loop references for outer loop control, where outer voltage loop and the inner current loop include a fundamental frequency compensator and harmonic frequency compensators.    USE - Single-stage scalable direct current/alternating current (DC/AC) voltage-source/current source power converter e.g. voltage-source/current source single-stage split-phase converter and voltage-source/current source single-stage three phase converter, for use during an electric vehicle application. Uses include but are not limited to convert power from solar cells, fuel cells, batteries, wind energy source, grid to voltage levels required by a load/power system i.e. microgrid.    ADVANTAGE - The converter allows control architectures for single, split-multiple phases, to be scalable for linear/nonlinear compensation and stationary/time-invariant frame to eliminate nonlinearity issues of converter voltage gain using limited number of transformer turn ratio, thus reducing transformer leakage inductance for high frequency operation and mitigating higher-order harmonics in steady-state dynamics. The converter provides direct DC/AC conversion with low device count and yields a simple drive-circuitry to lower converter cost and to achieve high density and efficiency, thus eliminating the need for a separate DC/DC converter stage, and yielding enhanced reliability. The converter allows magnetic devices to be coupled to reduce current ripple and to decrease size and weight.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for converting power.    DESCRIPTION OF DRAWING(S) - The drawing shows a circuit block diagram of a single-stage scalable DC/AC voltage-source/current source power converter.    Bi-directional converter modules (12, 14)    Load (16)    Voltage source (18)