Atec Agilent-N6700 Series - Manual (Page 8)

8
When your testing requires a power
supply to do more than just provide a
constant DC level, the N6750 Series
of high-performance, autoranging
DC power modules and the N6760
Series of precision DC power modules
are the perfect fit. These modules
combine a fast output with flexible
controls and sophisticated measure-
ments. The N6750/60 is more than
a power supply; it is a stimulus/
response instrument.
To fit in 1U, the N6750/60 use an
advanced switch-mode design that
offers the low output noise and fast
output speed typically found on linear
power supplies.
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.
This switching power supply outper-
forms most linear power supplies on
the market.
Additional Features
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 per-
formance unlike a typical DC power
supply. Thanks to an active down-
programming circuit to rapidly pull
down the output when lowering the
module’s 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 throughput
when your test calls for frequent
changes in power supply voltage
settings.
Voltage
Autoranging 50 W Out
Curre
50 V
10 V
0 1 A 5 A
50 W Curve
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 autoranging 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.
Figure 7. Autoranging characteristic