[Elecraft] Pro Audio PS

[Josh Fiden]

The adapter PAE sources is a flyback converter. 

https://en.m.wikipedia.org/wiki/Flyback_converter

Flyback is a buck-boost DC/DC converter where the inductor is split into a transformer to allow a big voltage change (340v in to 12v out) and provide galvanic isolation for safety. 

There’s a controller which adjusts the pulse width and period of the MOSFET switch that charges the primary to regulate the output voltage under changing input voltage and load current. 

73
Josh W6XU

Sent from my mobile device

> On Jul 31, 2019, at 2:14 AM, David Wilcox via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> Thank you all for the information. Will Wiki it too so I can look at a schematic or two of how it happens.  
> 
> Dave K8WPE