LOW-POWER TRANSFORMER Russian patent published in 2008 - IPC H01F30/10 H01F27/30 

FIELD: electrical engineering; converters and acoustic apparatuses incorporating low-power transformers.

SUBSTANCE: proposed low-power transformer has shell-type magnetic circuit assembled of similar rectangular-window ribbon cores coupled at intermediate leg. It carries impregnated insulated windings which are wound directly on intermediate leg and form monolithic structure upon impregnation together with shell-type magnetic circuit. Width-to-thickness ratio of intermediate leg a/b is kept within the range of 1 < b/a ≤ 4. Definite design alternates of structural components are proposed for this transformer.

EFFECT: improved specific power and noise characteristics.

4 cl, 1 dwg