Specifications

9
DC power modules offer low
noise outputs
Careful attention has been paid to this
design to ensure low normal mode
noise (ripple and peak-peak) as well as
low common mode noise. While all DC
power modules are switching power
supplies, the N6750 high-performance
autoranging DC power modules, the
N6760 precision DC power modules,
and the N6780 Source Measure Units
are switching power supply designs
that outperform most linear power
supplies on the market.
DC power modules provide fast
voltage changes
When it comes to speed, the N6750
high-performance autoranging DC
power modules, the N6760 precision
DC power modules, and the N6780
Source Measure Units achieve
performance unlike a typical DC power
supply. Thanks to an active down-
programming circuit to rapidly pull
down the output when lowering the
output voltage, these power modules
can rapidly program both up and down
in voltage. Changing voltage from 0 V
to 50 V, or 50 V to 0 V for example,
can be accomplished in less than
1.5 milliseconds.
Note that for smaller voltage changes,
from 0 V to 5 V or 5 V to 0 V for exam-
ple, the programming speed is less
than 200 microseconds. These output
speeds allow the N6750/60/80 to give
maximum system through-put when
your test calls for frequent changes in
power supply voltage settings.
Figure 11. The Agilent N6705 DC power analyzer is a perfect size
for the bench.
Autoranging for fl exibility
The N6750 high-performance auto-
ranging DC power modules and the
N6760 precision DC power modules
give you even more flexibility by
providing autoranging outputs. This
autoranging capability provides
maximum output power at any output
voltage up to 60 V. This allows one
power supply to do the job of several
power supplies, because its operating
range covers low voltage, high current
as well as high voltage, low current
operating points. For example, the
N6755A high-performance, autorang-
ing DC module, rated at 20 V, 50 A, and
500 W can provide full power at:
10 V @ 50 A (= 500 W),
20 V @ 25 A (= 500 W),
15 V @ 33 A (= 500 W),
or anywhere in between.
Therefore, this 500 W autoranging
power supply, due to its extended
voltage and current range, can produce
voltage and current combinations in
the range of a 1000 W non-autoranging
power supply.