power supply question, can it provide 15 amps?
power supply question, can it provide 15 amps?
(OP)
Could someone give an opinion on this power supply,
http ://www.mcm connect.co m/pdf/elec tronics/sp ec_sheet/7 2-7700.pdf
It's a Tenma 72-7700, If it says 24VDC and 15 amps on the spec sheet, will it provide 15 amps, or does the word "limited" hint it might make 15 amps at some lower voltage than 24VDC. I'm so confused. I bought thru Newark In One.
A coworker has done a short test and thinks it's not a 24VDC x 15 amp unit.
Thanks,
kch
http
It's a Tenma 72-7700, If it says 24VDC and 15 amps on the spec sheet, will it provide 15 amps, or does the word "limited" hint it might make 15 amps at some lower voltage than 24VDC. I'm so confused. I bought thru Newark In One.
A coworker has done a short test and thinks it's not a 24VDC x 15 amp unit.
Thanks,
kch





RE: power supply question, can it provide 15 amps?
RE: power supply question, can it provide 15 amps?
make shure the current limit knobs are turned
all the way up.
RE: power supply question, can it provide 15 amps?
For some reason, the product comes with leads that say 3 amps maximum on them? That added to the confusion, weird. It's like buying a Ferrari with 60 mph tires.
Thanks for your input Madcow and melone, you were both correct.
kch
RE: power supply question, can it provide 15 amps?
'Limited' could however mean a duty cycle! Beware.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: power supply question, can it provide 15 amps?
I think limited suggests 15 amps no matter what the voltage you try.
thanks,
kch
RE: power supply question, can it provide 15 amps?
The "limited" applies to the knobs for adjusting the current limit.
Is there an owner's manual?
TTFN
Eng-Tips Policies FAQ731-376
RE: power supply question, can it provide 15 amps?
I do recall plugs on the back of the unit, under a protective plexiglass bar, but I thought that was for input 60 hz, I think I'll go look.
Thanks for the tip to the tip.
Kevin
RE: power supply question, can it provide 15 amps?
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: power supply question, can it provide 15 amps?
RE: power supply question, can it provide 15 amps?
We used the unit at 24VDC and 8.5 amps current draw.
Pretty nice unit for $350.
legal limit, we did put a short on the unit and it folded back the voltage while putting out 15.3 amps. On the supply title it said "24VDC, 15 amps (limited)". Maybe that is to show the reader that they put out 15 amps no matter what the voltage and reduce the voltage when more than 15 amps are needed.
kch
RE: power supply question, can it provide 15 amps?
TTFN
Eng-Tips Policies FAQ731-376
RE: power supply question, can it provide 15 amps?
This reduces the stress on the pass transistor.
From the sound of it, the psu has an ordinary current limit of 15A.