Digest Number 1792
Archiver
Posts: 46,084
Hi John:
Don't forget to look at eBay for power supplies. I got some good deals
there.
<http://cq-search.ebay.com/search/search.dll?MfcISAPICommand=GetResult&ht=1&quer\
y2=power+supply&search_option=1&submit=+Search+&minPrice=100&maxPrice=400&catego\
ry0=12576&exclude=12*&st=&SortProperty=MetaEndSort&maxRecordsPerPage=50&worldloc\
ation=ebayavail®ion=0&available_to=1&located_in=1&ebaycurr=&siteid=0&query=po\
wer+supply+-12*&shortcut=&ebaytag1code_tmp=&ebaytag1_tmp=&ebaytag1code=&ebaytag1\
=&ebaytag12=ebayreg&from=R6>
The HP/Agilent E3631A is a triple output supply (80 Watts):
0 to 6 V @ up to 5 Amps
0 to +25 V @ up to 1 Amp
0 to -25 V @ up to 1 Amp
The voltage on the + and - 25 supplies can be ganged, i.e. if you set
one of them for 15 V then the other is at 15 V, good for op amp work.
This supply has computer control capability. You can also connect them
in series for a 0 to 50V @ up to 1 Amp, but not in parallel.
The E3630 has 1/2 the current capability of the E3631A and does not have
computer control capability and costs about 1/2 as much.
The HP/Agilent E361x series (60 Watts) are smaller single output linear
supplies with digital Voltage and Current metering. The E3717A is 0 to
60 V @ aup to 1 Amp. This supply also has a Over voltage Protection
(OVP) screwdriver pot so you can set the max voltage possible to say 6
Volts if you are using the supply for 5 Volts, then if it's late and you
twist the Voltage control it will not go above 6 Volts. I like the size
and capability of this one more than the others mentioned and still
others not mentioned.
The Smaller HP 6216A is a 0 to 30 Volt @ up to 400 ma (12 Watts) linear
supply with analog metering.
All of the above are CV/CC, that is to say that with no load they put
out a constant voltage and when the load current gets to the set limit
they change over to current regulation.
The company called Harrison was bought by HP which became Agilent, so if
you see a Harrison power supply it's equivalent quality to an Agilent.
Have Fun,
Brooke Clarke, N6GCE
>Date: Sun, 11 May 2003 13:32:52 -0500
> From: John Walton <john@l...>
>Subject: Benchtop power supply
>
>Can anyone suggest a good bench top power supply and where to get it? I'm
>starting to play with stepper motors, and my wall warts just aren't cutting
>it. I'm tired of trying to find just the right one with enough capacity for
>what I'm driving.
>I'm not allergic to spending a couple of hundred dollars, just as long as
>it is a good one.
>
>Dual outputs? Adjustable? Anything I left out?
>
>This is kind of off topic, but I'm betting you guys are a pretty good resource.
>
>
>Thanks,
>-John
>
>
>
>
Don't forget to look at eBay for power supplies. I got some good deals
there.
<http://cq-search.ebay.com/search/search.dll?MfcISAPICommand=GetResult&ht=1&quer\
y2=power+supply&search_option=1&submit=+Search+&minPrice=100&maxPrice=400&catego\
ry0=12576&exclude=12*&st=&SortProperty=MetaEndSort&maxRecordsPerPage=50&worldloc\
ation=ebayavail®ion=0&available_to=1&located_in=1&ebaycurr=&siteid=0&query=po\
wer+supply+-12*&shortcut=&ebaytag1code_tmp=&ebaytag1_tmp=&ebaytag1code=&ebaytag1\
=&ebaytag12=ebayreg&from=R6>
The HP/Agilent E3631A is a triple output supply (80 Watts):
0 to 6 V @ up to 5 Amps
0 to +25 V @ up to 1 Amp
0 to -25 V @ up to 1 Amp
The voltage on the + and - 25 supplies can be ganged, i.e. if you set
one of them for 15 V then the other is at 15 V, good for op amp work.
This supply has computer control capability. You can also connect them
in series for a 0 to 50V @ up to 1 Amp, but not in parallel.
The E3630 has 1/2 the current capability of the E3631A and does not have
computer control capability and costs about 1/2 as much.
The HP/Agilent E361x series (60 Watts) are smaller single output linear
supplies with digital Voltage and Current metering. The E3717A is 0 to
60 V @ aup to 1 Amp. This supply also has a Over voltage Protection
(OVP) screwdriver pot so you can set the max voltage possible to say 6
Volts if you are using the supply for 5 Volts, then if it's late and you
twist the Voltage control it will not go above 6 Volts. I like the size
and capability of this one more than the others mentioned and still
others not mentioned.
The Smaller HP 6216A is a 0 to 30 Volt @ up to 400 ma (12 Watts) linear
supply with analog metering.
All of the above are CV/CC, that is to say that with no load they put
out a constant voltage and when the load current gets to the set limit
they change over to current regulation.
The company called Harrison was bought by HP which became Agilent, so if
you see a Harrison power supply it's equivalent quality to an Agilent.
Have Fun,
Brooke Clarke, N6GCE
>Date: Sun, 11 May 2003 13:32:52 -0500
> From: John Walton <john@l...>
>Subject: Benchtop power supply
>
>Can anyone suggest a good bench top power supply and where to get it? I'm
>starting to play with stepper motors, and my wall warts just aren't cutting
>it. I'm tired of trying to find just the right one with enough capacity for
>what I'm driving.
>I'm not allergic to spending a couple of hundred dollars, just as long as
>it is a good one.
>
>Dual outputs? Adjustable? Anything I left out?
>
>This is kind of off topic, but I'm betting you guys are a pretty good resource.
>
>
>Thanks,
>-John
>
>
>
>