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
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
David J. Wilcox K8WPE’s iPad
> On Jul 30, 2019, at 8:55 AM, Don Wilhelm wrote:
>
> David,
>
> Insensitivity to input voltage is characteristic of a switching power supply.
David,
Insensitivity to input voltage is characteristic of a switching power
supply. The switcher input takes power from the AC line, rectifies it
and stores the energy in an inductor. Then the switching circuit takes
the inductor energy and dumps charge in a capacitor in its output to the
Dave
Just about every 'wallcube' switching power supply is auto input voltage
sensing. This includes Laptops, iPads, and phone chargers. Even the
Astron switching supplies can handle 110 or 220 although some will have an
internal switch to make that happen. This is a great feature, but the
I also have one of these power supplies and am very happy with it. Can someone
please explain how it knows what voltage is input (120 v versus 240 v) to get
the same 12 volts output. Is there a different power cord? Am sure it needs
the correct wall plug adapter. Or is there just a 12 volt
Hi all,
I have one as well for my KX3, I've even taken it with me on holidays to the
Caribbean were voltage is 240 volts, still plug and play, works on 120 or 240
volts. Excellent product though in the shack I run the KX3 on battery/solar
power.
73 de Jose Douglas KB1TCD
Sent from my iPad
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