MeanWell specifies almost all their AC supplies also for DC powering,
typically 130-370vdc for a 90-264vac unit.
I have many supplies for rack mount servers, several are wide input, 12v
output AND have a trim input pin that allows the voltage to be trimmed up
to the overvoltage threshold.
Besides
On 11 Nov 2019 at 10:07, John Lussmyer via EV wrote:
> So, it sounds like I need to find a real DC-DC converter that can take 330vdc
> and make 13.8vdc.
Could you use (say) three 120v converters, each connected to part of the
battery, with their outputs in parallel through large diodes?
David R
John Lussmyer via EV wrote:
On Mon Nov 11 09:47:56 PST 2019 ev@lists.evdl.org said:
cor.vandewa...@gmail.com said:
You do not really have a ground fault, it seems your power supplies have an
input circuit that causes a small current to ground
John, are these built as DC/DC converters? Or are
On Mon Nov 11 09:47:56 PST 2019 ev@lists.evdl.org said:
>John, are these built as DC/DC converters? Or are the AC-input power
>supplies that you are using with a DC input?
The fun part is that I also have a couple of 600W supplies that put out 50A
@13.2 V (a bit low), and these do NOT have any no
On Mon Nov 11 09:47:56 PST 2019 ev@lists.evdl.org said:
>cor.vandewa...@gmail.com said:
>>> You do not really have a ground fault, it seems your power supplies have an
>>> input circuit that causes a small current to ground
>
>John, are these built as DC/DC converters? Or are the AC-input power
>su
cor.vandewa...@gmail.com said:
You do not really have a ground fault, it seems your power supplies have an
input circuit that causes a small current to ground
John, are these built as DC/DC converters? Or are the AC-input power
supplies that you are using with a DC input?
AC power supplies u
On Sun Nov 10 15:05:24 PST 2019 cor.vandewa...@gmail.com said:
>You do not really have a ground fault, it seems your power supplies have an
>input circuit that causes a small current to ground, possibly they have a
>MOV or other protective device on their input or a discharge resistor that
>takes c
John,
You do not really have a ground fault, it seems your power supplies have an
input circuit that causes a small current to ground, possibly they have a
MOV or other protective device on their input or a discharge resistor that
takes care of the required removal of voltage from input capacitor w
On my opinion John,
If you were able to properly isolate that fault to ground right to
your DC-DC converters, you should fix that (independently how critical
those DCDC are for your Zilla or anything else). On a HV system, safety is
the most important thing to be taken into consideration over
I seem to have a ground fault in my truck.
I was working on the BMS, and when my finger touched one of the busbars, I got
a shock. (forearm was leaning on the truck frame.)
To find where it was coming from, I put a 1K resistor in series with my meter
lead, tied the other end to ground, and set th
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