Advices for a dc electric power analyzer
- Thread starter r2d2
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Matador
Well-known member
I've always found two multimeters adequate for this.
One VOM can get you basic information.
JR
JR
crazydoc
Well-known member
What do you mean by power? Watts? Attach the power supply to an appropriate resistance, measure the voltage across it and the current through it, and multiply.
Or maybe I'm not understanding your needs.
Or maybe I'm not understanding your needs.
user 37518
Well-known member
You can get an electronic load, there are some kits out there, or you can buy a used one on eBay.
Thanks for info!
It is a good way that don't destroy bank account... ,
do you mean connected in parallel ("Y" mode) ?
The need is also to be able to see (graphically) the power "wave" and its anomalies/problems.
Thank for post !
Do you mean "Voltmeter" ?
This option as well, Would be secondary but still very useful ,
any example about ?
Thanks for post !
The section to check/analyze would be from main transformer secondary out,
to the output connectors of the AC to Dc "converter" ,
before go to audio device psu input section,
voltages +/- , ampere/ma , etc.. ,
that allow to see (graphically) the power "wave" and its anomalies/problems,
better if it were an external interface to connect to a laptop or desktop,
with a dedicated software,
as possible do with various free softwares for analyze audio signal,
that allow you to use external audio cards as input.
VOM stands for volt-ohm meter. Popular basic test equipment.
JR
JR
Thanks for post !
Any "example" about ?
Ps:
So sorry for many quotes, unfotunately today multiquote option don't work (here) : ((
Digital standard multimeter of course is on the bench as default !
but for more extended checks, like if the "wave" have "issues" ?
AnalogPackrat
Well-known member
Oscilloscope
Also as external box to connect to desktop or laptop,
without destroy bank account ?
AnalogPackrat
Well-known member
Used analog CRT oscilloscopes can be had for cheap (relative to their new price) in many places. Not everyone has the same budget, so I can't make that determination about destruction. $100-150 for an early 80s Tektronix is cheap.
user 37518
Well-known member
crazydoc
Well-known member
It looks to me like you want to check the transformer secondary as you put the power supply under load, so an oscilloscope which you can implement as software (free) 8 Best Free Oscilloscope Software For Windows to check the transformer waveform, as you put the supply onder load, either by connecting it to the device you want to power or to an electronic load (expensive) might work.
Be careful probing around mains voltage, that sting can kill you.
JR
JR
The top of the line Fluke meters do this. It doesn't sound like this feature is necessary for what you are doing. I thought you were looking for the DC equivalent of an AC power analyzer.
