| 摘要 |
<p>A power converter unit comprises a transformer (10) mounted on one side of a PCB (11), with the control circuitry on the other side of the PCB. The circuitry excludes any components which require scaling for different power ratings, or which are excessively radiation emitting or sensitive; such components must be added externally to the unit. The transformer is mounted with its aperture perpendicular to the PCB, so that the unit has a fixed footprint regardless of its rating; only its heights varies with rating. The transformer is wound with the high voltage/high frequency windings inside the other windings, which act as a shield for radiation from the former windings. The PCB also incorporates a Faraday shield.</p> |
