5989-8853EN Datasheet, PDF (5/37 Pages) Keysight Technologies – A guide to power product solutions to match your test and measurement needs

05 | Keysight | Power Products – October 2015 - Selection Guide
Selecting the Right DC Power Supply For Your Application
When you need just a basic power supply, it’s quite easy
to pick the right one based on your voltage and current
requirements. The voltage and current tables are found on
pages 9 - 10. From there you can go to the product page(s)
for more detail.
When you have specialized requirements that need features
such as source and measure, it is quite easy to select from a
set of power supplies that are designed exactly for those
requirements. Refer to page 23 for specialty power
products.
Of course you need to select the right voltage and current,
but there are other factors to consider when selecting a
DC power supply for your applications. This guide gives a
deinition of the feature, states why it’s important, and tells
you how to use that feature when specifying the right power
supply. In addition, the product families are listed so you
can quickly see which product best its your application.
With that information, you can go to the product pages for
detailed speciications.
But when you have more complex requirements and you
know the power supply is an important part of your test
bench, where do you start and what do you need to
consider?
Use the following information to help select the features you need in a DC power supply.
Then go to the product page(s) for more detail.
Output Characteristics
LOW
ripple and noise
<10 mVp-p
MEDIUM
ripple and noise
5–500 mVp-p
Ripple and noise
Ideally, an output is free from any variations
6611C-55A
p15 66101A-06A
p20
Use the ripple and noise speciication in voltage. In practice, there are periodic
66309B-32A p32 6671A-92A
p15
to determine what, if any, affects
variations, called ripple, and random variations, B2961A-62A
p16 E36100 Series
p11
these variations will have on your
called noise. Typically speciied as either Vrms E3600 Series p11 N5700 Series
p13
circuit or device.
or Vp-p, the most useful spec is Vp-p. With
N6751A-66A
p18 N6731B-46B
p18
Vp-p you will know the maximum variation away N6781A-84A p23 N6773A-77A
p18
from the DC setpoint.
N6900 Series p17 N6785A-86A
p23
N7900 Series p17 N8700 Series
p13
U8031A-32A p11 N8900 Series
p14
U8001A-02A
p11
HIGH
accuracy
<0.03%
MEDIUM
accuracy
>0.05%
Programming Accuracy
Programming accuracy is a measure of how
6620 Series
p15 6600 Series
p15
Use programming accuracy to
closely the output will be to the setpoint. Spec- B2961A-62A
p16 66100 Series
p19
determine if the power supply can iied as a percent of output plus an offset, you N6751A-66A
p18 E3600 Series
p11
produce a voltage and current within can calculate whether or not the power supply N6781A-82A
p23 E36100 Series
p11
the precision needed
has the precision required. In addition, many N6784A-86A p23 N5700 Series
p13
by your device.
power supplies have built-in voltmeters and
N6900 Series p17 N6731B-46B
p17
ammeters to measure its output.
N7900 Series p17 N6773A-77A
p17
N6783A
p31
N8700 Series
p13
N8900 Series
p14
U8000 Series
p11