Datasheet

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
measurements. 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 outperforms 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 performance 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 example,
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 Output
Current
50 V
10 V
01 A5 A
50 W
Voltage
Autoranging 50 W Output
Current
50 V
10 V
01
A5
A
50 W Curve
Voltage
Autoranging 100 W Output
Current
50 V
12 V
8.5 V
02 A 8.33 A 10 A
100 W Curve
Voltage
Precision Outputs
Current
50 V
33 V
01 A 1.5 A – 50 W output
2 A 3 A – 100 W output
Autoranging For Flexibility
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.
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.
The flexibility of autoranging is useful
when the DUT operates over a wide range
of voltages, when the ATE system needs to
test a wide range of DUTs, or when margin
is needed because the ATE power supply
must be selected before final DUT power
requirements are determined.
Figure 7. Autoranging characteristic
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