Ang mga kuwadro na gawa ng paglipat ng lakas ng paglipat ay halos: Pagwawasto --- sa pamamagitan ng paglipat ng circuit --- sa high-frequency AC --- pagbabagong-anyo sa pamamagitan ng high-frequency transpormer --- Pagwawasto, Pag -filter --- DC. The mains strength we typically use is 50hz, and 50hz AC strength desires to be converted thru a transformer, however the low frequency results in an extended transformer winding, which makes the transformer cumbersome and calls for lots of wires. After turning into a high-frequency alternating current, a exceptionally small transformer may be used to step down, saving value and space.