Recently differential-mode inverter has been introduced, which has shown significant promise for low-power applications due to its modularity, symmetry, and reduced component count. Initially a continuous modulation scheme was adopted which has now been superseded using hybrid modulation that introduces discontinuity in modulation or yields topological switching that results in enhanced efficiency, which is captured in this digest. To further improve the energy-conversion efficiency, GaN HFETs (or enhancement-mode HEMTs) is incorporated that yields further improvements in loss reduction.