I'm surprised that you can't just use the Schottky diode bridge, a rather
large filter capacitor and an LDO regulator chip. What components are you
using, and what's the lowest voltage you see at the input to the regulator?
On Sun, Mar 24, 2019, 10:27 AM Dekatron42 wrote:
> In the circuit with
And I’d ask about mains stability.
Was half-wave ruled out?
John K
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of petehand
Sent: Monday, 25 March 2019 18:43
To: neonixie-l
Subject: [neonixie-l] Re: Q: Active full-wave rectifiers
I would use four
I tend to use higher voltage transformers, in the 8-12VAC range, full-wave
rectifiers + filter-cap, then use switching-regulators that are
pin-compatible replacements for the popular LDO regulators. They are 90%+
efficient, and therefore generate almost no measurable heat.
If the current is re
If all you want is to get 5Vdc rom the mains, a USB charger seems like a
very attractive option. They are usually less than US$5 and occupy about
1cu in (plus the power plug). My initial concern would be safety
isolation, but some of these will surely be UL listed or CE qualified.
However, if
