solderdude
Grand Contributor
Thank you very much! Why would introducing leakage reduce emission? As the result of putting a low impedance pass for HF between your secondary and your primary?
Yes, without it the secondary output would just be a huge antenna. The small cap between output and input 'grounds' it for HF reducing emission.
A question remain: why did it took so long to transition from linear to SMPS? Only 20 years ago, it seems like SMPS were not the norm in high end products.
Availability of fast switching devices with a high voltage and current capability in huge numbers and thus low prices.