Atec Agilent-N6700 Series - Manual (Page 9)

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Therefore, this 500 W autoranging
power supply, due to its extended
voltage and current range, can
produce voltage and current combina-
tions 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.
High-speed test extensions
To make your testing go even faster,
the N6700 DC power modules offer
High-Speed Test Extensions
(HSTE). This enhancement to the DC
power modules extends the capabili-
ties to include features similar to a
built-in arbitrary waveform generator
and a built-in oscilloscope. HSTE is
optional on the N6730/40/50/70 DC
power modules. HSTE is standard
on the N6760 precision DC power
modules, the N6780 SMU modules,
and the N6783 application-specific
modules.
Through the LIST mode of HSTE, you
can download up to 512 setpoints of
voltage and current. In LIST mode,
you can program the output to
execute a LIST of voltage and current
setpoints. For each setpoint, a dwell
time can be specified and the power
supply will stay (i.e., dwell) at that
setpoint for the programmed dwell
time value. For each setpoint in the
LIST, you can have a different dwell
time from 0 to 262 seconds with
1 microsecond resolution.* Then,
you can trigger the module to begin
executing the list. The module will
step thru the list, staying at each
setpoint for the programmed dwell
time, and then it will move on to the
next point. This speeds up execution
by removing the computer I/O from
the process.
Figure 8. High speed test extensions LIST mode provides
“power ARB” capability
Voltage
Time in seconds
The result is an output that auto-
matically changes according to the
programmed list, just like an arbitrary
waveform generator.
* Note that the output response
time is less than 5 milliseconds per
voltage change, so steps of less than
5 milliseconds will not achieve their
final output voltage value before
moving on to the next step. This is
useful when trying to create a smooth
waveform.