Agilent E4351B Data Sheet

The Agilent one-box Solar Array
Simulator (SAS) is a dc power
source that simulates the output
characteristics of a solar array. The
SAS is primarily a current source
with very low output capacitance
and is capable of simulating the I-V
curve of different arrays under dif­ferent conditions (i.e., temperature,
age etc.). The I-V curve is program­mable over the IEEE-488.2 bus and
is conveniently generated within
the SAS. The SAS provides three
current operating modes:

1. Simulator Mode: An internal algo­rithm is used to approximate a
SAS I-V curve. Four input parame­ters: Voc (open circuit voltage),
Isc (short circuit current), Imp and
Vmp (current and voltage at the
peak power point on the curve)
are needed to establish a curve
in this mode.

2. Table Mode: For a fast and
accurate I-V simulation, the SAS
provides a table mode. The I-V
curve is set by a user-defined table
of points. A table can have any
length up to 4000 points (a point
corresponds to a specific value of I
and V). As many as 30 tables may
be stored in each of the SAS built-in
volatile and non-volatile memory.

Agilent Application Specific dc Power Supplies tailored solutions for specific needs

Power Products Catalog 2002-2003

For more detailed specifications see the product manual at

www.agilent.com/find/power

69

Fast and accurate simulation of any type of solar array
Multiple simulation modes
Fast recovery time
Easy to simulate environmental conditions

Solar Array Simulators

Specifications

(at 0˚to 55˚C unless
otherwise specified)

E4350B E4351B E4350B- E4350B-

J01 J02

Special Order Special Order
Option Option

Number of outputs 111 1
GPIB Yes Yes Yes Yes
Output ratings

(Simulator and Table Modes)
Max. Power 480 W 480 W 480 W 480 W
Voc. Max. 65 V 130 V 54 V 86.6 V
Isc. Max. 8 A 4A 9.6 A 6 A
Output ratings (for mixed mode)
Max Power 480 W 480 W 480 W 480 W
V rated 0-60 V 0-120 V 0-50 V 0-80 V
I rated 0-8 A 0-4 A 0-9.6 A 0-6 A

Programming accuracy

at 25˚C ±5˚C
Voltage (Fixed Mode) 0.075% + 10 mV 0.075% + 20 mV 0.075% + 8.5 mV 0.075% + 13.5 mV
Current (Simulator and Fixed Mode) 0.2% + 20 mA 0.2% + 10 mA 0.2% + 25 mA 0.2% + 15 mA

Ripple and noise

from 20 Hz to 20 MHz
Voltage rms 16 mV 24 mV 16 mV 21 mV
Voltage p-p 125 mV 195 mV 125 mV 175 mV
Current rms 4 mA 4 mA 4 mA 4 mA

I

ac

I

mp

P

max

I

V

V

mp Voo

I

rated

P

max

I

V

V

rated

E4350B, E4351B

Simulator Mode Fixed Mode

70

Supplemental Characteristics
for all model numbers

Load Switching Recovery Time: < 5 µs when

switched from short circuit to variable
load, to within 1.5 A of an operating point
on the I-V curve.

Remote Sensing: Up to 2 V+ (Voc-Vmp).
Add 3 mV to the voltage load regulation
specification for each 1 volt change in the
positive output lead due to load current
change.

Analog Programming of Output Current

Input Signal: 0 to -4.0 V
Input Impedance: 20 k Ohms nominal

Shunt Regulation: Switching frequency

up to 50 kHz

Solar Array Simulators (Continued)

Power Products Catalog 2002-2003

For more detailed specifications see the product manual at

www.agilent.com/find/power

Agilent Application Specific dc Power Supplies tailored solutions for specific needs

Non-volatile memory can store a
maximum of 3500 points. The tables
(I-V curves) are easily stored and
recalled with an IEEE-488.2 com­mand. The table(s) stored in this
memory will be retained when the
power is turned off. Volatile memo­ry greatly increases the flexibility
by saving up to 30,000 points.
Multiple tables are easily accessed
with IEEE-488.2 command. These
tables will be erased after power
is removed.

In Table Mode, current and voltage
offsets can be applied to the select­ed table to simulate a change in the
operating conditions of the solar
array.

3. Fixed Mode: This is the default
mode when the unit is powered on.
The unit has the rectangular I-V
characteristics of a standard power
supply, when an output capacitor is
added in this mode.

Specifications

(at 0˚to 55˚C unless
otherwise specified)

E4350B- E4350B- E4350B­J03 J04 J06

Special Order Special Order Special Order
Option Option Option

Number of outputs 111
GPIB Yes Yes Yes
Output ratings

(Simulator and Table Modes)
Max. Power 480 W 480 W 480 W
Voc. Max. 52 V 47 V 74 V
Isc. Max. 10 A 11 A 7 A
Output ratings (for mixed mode)
Max Power 480 W 480 W 480 W
V rated 0 - 48 V 0 - 43.5 V 0 - 68 V
I rated 0.10 A 0 - 10 A 0 - 7 A
Programming accuracy at 25˚C ±5˚C
Voltage (Fixed Mode) 0.075% + 8 mV 0.075% + 8 mV 0.075% + 11.5 mV
Current (Simulator and Fixed Mode) 0.2% + 27.5 mA 0.2% + 30.5 mA 0.2% + 17.5 mA

Ripple and noise

from 20 Hz to 20 MHz
Voltage rms 16 mV 16 mV 19 mV
Voltage p-p 125 mV 125 mV 150 mV
Current rms 5.5 mA 6.5 mA 4 mA

Series Regulation: Switching frequency
up to 50 kHz

OVP and OCP: Overvoltage and overcur­rent protection triggers in ≤100 us

Capacitive Load: In fixed mode, the maxi­mum load capacitance (without causing
instability) is 2000 uF. In simulator and
table mode, it is unconditionally stable at
all capacitive loads.

Inductive Load: The maximum load
inductance (without causing instability)
is 200 µH

Regulatory Compliance: Listed to UL3101,
certified to CSA 22.2 No. 1010.1, complies
with EN 61010-1.

RFI Suppression: Complies with CISPR-11,
Group 1, Class A

Size: 425.5 mm W x 132.6 mm H x

497.8 mm D (16.75 in x 5.25 in x 19.6 in)
See page 102 for more details.

Weight: Net, 25 kg (54 lb); shipping,
28 kg (61 lb)

Warranty: Three years

Ordering Information

Opt 100 87 to 106 Vac, 47 to 63 Hz
Opt 120 104 to 127 Vac, 47 to 63 Hz
Opt 220 191 to 233 Vac, 47 to 63 Hz

Opt 240 209 to 250 Vac, 47 to 63 Hz
* Opt 908 Rackmount Kit, p/n 5062-3977
* Opt 909 Rackmount Kit with Handles,

p/n 5063-9221

Opt 0L2 Extra Standard

Documentation Package

Opt 0B3 Service Manual

Opt 0B0 No documentation package
* Support rails required

Accessories
p/n 1252-3698 7-pin Analog Plug
p/n 1252-1488 4-pin Digital Plug
p/n 5080-2148 Serial Link Cable

2 m (6.6 ft)

p/n 1494-0059 Accessory Slide Kit

To see a copy of the user’s guide,
please visit our Web site at

www.agilent.com/find/manuals

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Product specifications and descriptions in this
document subject to change without notice.

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