High power factor inverter for electronic loads amp; other DC sources

摘要

A multi-stage switch-mode DC to AC power inverter for electronic loads and other DC sources. The design comprises 3 stages of power conversion. The first two stages provide a DC-to-DC boost converter followed by a transformer coupled DC-to-DC forward converter. These 2 stages may be combined to reduce component count. The final stage is a unique DC to AC buck inverter that returns all of the available energy to the AC line with near unity power factor. This combination is designed with high efficiency operation for energy conservation and retrieval.