N5767A - Agilent / Hewlett-Packard

Simple ways to improve

your operation and

measurement capabilities

10 Practical Tips

You Need to Know About

Your Power Products

II1

II33

II22

Use remote sensing to

compensate for load-lead effects

When your power supply leaves the

factory, its regulation sense terminals

are usually connected to the output

terminals. This limits the supply’s

voltage regulation abilities, even with

very short leads. The longer the leads

and the higher the wire gauge, the

worse the regulation gets (Figure 1).

Compare the output impedance of a

well-regulated 10 A supply, which

might have an output impedance of

0.2 mΩ, with the resistance of copper

wire:

AWG wire size Resistance in mΩ/ft (at 20° C)

22 16.1

20 10.2

18 6.39

16 4.02

14 2.53

12 1.59

10 0.999

And regulation gets even worse if

you use a relay to connect power to

the load.

Remote sensing, in which you connect

the sense terminals of the power

supply’s internal feedback amplifier

directly to the load, lets the power

supply regulate its output at the

load terminals, rather than at its

own output terminals (Figure 2).

The supply voltage shifts as necessary

to compensate for the resistance of

the load leads, relays, or connectors,

thereby keeping the voltage at the

load constant.

To implement remote sensing,

disconnect the local sense leads

from the output terminals. Use

twisted two-wire shielded cable to

connect the power supply sensing

terminals to the sense points on the

load. (Don’t use the shield as one of

the sensing conductors.) Connect

one end of the shield to ground and

leave the other end unconnected.

Sensing currents are typically less

than 10 mA, and as a general rule,

you should keep the voltage drop in

the sense leads to less than 20 times

the power supply temperature

coefficient (usually stated in mV/°C).

This is easy to achieve with readily

available shielded two-wire cable.

Figure 1: The effects of six feet of AWG 14-gauge leads without remote sensing

Figure 2: Using remote sensing to correct the lead-load problem

4.7 V

5 V Load

–S

Power supply

programmed

for 5 V, 10 A

Load leads are

6 foot, AWG 14

0.015 Ω lead resistance

–

5 V

–S

Power supply

programmed

for 5 V, 10 A

–

0.015 Ω lead resistance

5.3 V Load

Load leads are

6 foot, AWG 14

Tip

Increase safety with

remote disable feature

Tip

2Remote disable offers a safe way to

shut down a power supply to respond

to some particular operating condition

or to protect system operators (in

response to a cabinet door being

opened unexpectedly or someone

pushing a panic button, for instance).

Remote inhibit (RI) is an input to the

power supply that disables the output

when the RI terminal is pulled low

(Figure 1). Shorting the normally open

switch turns off the supply’s output.

You could also use a logic chip with

an open collector transistor output

instead of the switch. Figure 1 also

shows a discrete fault indicator (DFI)

that you can use to signal an operator

or other components in the system

when the power supply detects a

user-defined fault.

Almost any operating condition can

create a DFI signal. For example, to

generate a DFI signal when the load

draws excessive current, enable the

over-current protection (OCP) mode,

program the unit to generate a DFI

signal when it enters constant current

mode, then program the maximum

current the load normally draws.

If the load current exceeds the

maximum, the DFI output goes low,

disables the power supply, and

informs the operator of the over-

current condition (or performs

another user-defined function),

without tying up the system bus or

interrupting the system controller.

You can daisy chain DFI and RI as

shown in Figure 2. If one supply

detects a fault, all supplies in the

system are disabled. Using this

approach, you can chain together

an unlimited number of supplies.

Figure 1. Remote inhibit and discrete fault

indicator schematic

Figure 2. Daisy-chained DFI and RI

To micro-

processor

+5 V

Com

DFI

Com

From micro-

processor

Com

DFI

Com

DFI

Com

Power supply

Eliminate noise from

low-level measurements

Noise in low-level measurements

can come from a number of different

sources, and it’s easier to eliminate

noise than to filter it. Check these

noise sources:

1. Power supply

Starting with a low-noise supply is

naturally a great way to keep noise

out of your measurements. Linear

power supplies have lower common-

mode noise currents and generally

operate at low frequency. However,

you can use switch-mode supplies

successfully if their specifications

include a low common-mode current.

As a rule of thumb, common-mode

current over 20-30 mA is likely to

cause trouble. Keep reading for hints

on how to minimize the problem.

2. DUT to power supply

connections

Minimize conducted noise by

eliminating ground loops. Ideally,

there should be only one connection

to ground. In rack systems, where

multiple ground points are inevitable,

separate the dc distribution path from

other conductive paths that carry

ground currents. If necessary, float

the power supply (don’t connect

either terminal directly to ground).

Minimize radiated pick-up (both

electric and magnetic) by using

twisted shielded conductors for the

output and remote sense leads. To

make sure the shield doesn’t carry

current, connect the shield to ground

at one end only, preferably the single-

point ground on the supply (Figure 1).

Minimize the power supply’s common-

mode noise current by equalizing the

impedance to ground from the plus

and minus output terminals. Also

equalize the DUT’s impedance to

ground from the plus and minus

input terminals. Magnetic coupling

or capacitive leakage provide a return

path for noisy ground loop current at

higher frequencies. To balance the

DUT’s impedance to ground for your

test frequencies, use a common-mode

choke in series with the output leads

and a shunt capacitor from each lead

to ground.

3. Current variations to the DUT

Rapid changes in the DUT’s current

demand cause voltage spikes. To

prevent this, add a bypass capacitor

close to the load. The capacitor should

have a low impedance at the highest

testing frequencies. Avoid imbalances

in load lead inductance; direct

connections to the DUT, such as

twisted shielded pair, are your best

bet.

Figure 1: Minimizing radiated pick-up with twisted shield leads for both output and

remote sense leads

Power

supply Load

Shield

Load

Shield

–

–S

Tip

Use down programming

to increase test speed

Tip

4Under light or no load conditions,

a power supply’s output capacitor

discharges slowly. If you’re using the

supply as a static voltage source, this

is not problematic, but when you’re

making tests at varying voltage levels,

slow discharge means slow tests.

Down programming circuits in power

supplies rapidly decrease the output

voltage, reducing discharge times by

hundreds of milliseconds. Agilent

Technologies power supplies use two

types of down programming circuits:

• In Figure 1, an FET is placed across

the output terminals. Whenever

the output voltage is higher than

the programmed value, the FET

activates and discharges the output

capacitor. The FET can sink currents

ranging from 10 percent to

20 percent of the supply’s output

current rating. The maximum load

at low voltages is limited to the

On resistance of the FET plus the

series monitoring resistor, resulting

in a slight degradation of the down

programming current near zero

volts.

• In Figure 2, the down programmer

lies between the power supply’s

positive terminal and a negative

source. This configuration pulls

the output completely down with

no degradation near zero.

Some power supplies, such as

the Agilent 663xA series, can sink

currents equal to their full output

current rating. This sink current is

programmable, so you can use the

supply both as a programmable

source and load.

Figure 1: A down programming circuit

with an FET across the output terminals

Figure 2: A down programmer situated

between power supply’s positive output

and a negative source

Tip

Simplify setup with autoranging

power supplies

With bench and rack space at a

premium, having the ability to

produce a wide range of voltage

and currents with one power supply

is beneficial. Applications that

require many voltage and current

combinations require many power

supplies or a very large power

supply to span the largest voltage

and current combination. For

example, a dc/dc converter is tested

under several voltage and current

combinations at about the same

power level.

A very basic dc power supply has a

rectangular output (Figure 1). It has

a maximum voltage setting (Vmax)

and a maximum current setting (Imax)

with a single maximum power point

(Pmax) which equals Vmax * Imax.

This creates a rectangular output

characteristic.

More advanced power supplies

have multi-range outputs. For

example, a dual-range power supply

(Figure 2) has two rectangular output

characteristics, each having a

different Vmax and Imax. However,

both output characteristics have

the same Pmax but at two different

points. The power supply can switch

between the different ranges to

satisfy both rectangular output

characteristics.

Autoranging outputs (Figure 3) satisfy

many different voltage and current

combinations that are limited by

Pmax. The output characteristic

follows a constant Pmax curve

allowing for several different power

curves rated at the same power

level, Pmax.

Using autoranging outputs simplifies

the test setup by eliminating the

need for many power supplies.

Supplies such as the Agilent N675xA

and N676xA have autoranging

outputs that help do this and

drive the cost of test down.

Figure 1: Rectangular output characteristic

Figure 2: Dual-range output characteristic Figure 3. Autoranging output characteristic

Connect power supplies in

series or parallel for higher output

Tip

6Connecting two or more power

supplies in series (Figure 1) provides

higher voltages, but observe these

precautions:

• Never exceed the floating voltage

rating of any of the supplies.

• Never subject any of the power

supplies to negative voltages.

Program each power supply

independently. If two supplies are

used, program each one for 50% of

the total output voltage. If three

supplies are used, program each

supply for about 33% of the total

output voltage. Set the current limit

of each supply to the maximum that

the load can safely handle.

Connecting two or more power

supplies in parallel (Figure 2)

provides higher currents, but again,

observe these precautions:

• One unit must operate in constant

voltage (CV) mode and the other(s)

in constant current (CC) mode.

• The output load must draw enough

current to keep the CC unit(s) in

CC mode.

Program the current limit of each

unit to its maximum value and

program the output voltage of the CV

unit to a value slightly lower than the

CC unit(s). The CC units supply the

maximum output current that they

have been set to and drop their

output voltage until it matches the

voltage of the CV unit, which supplies

only enough current to fulfill the total

load demand.

The Agilent N6700 supplies have

a grouping function that virtually

parallels outputs. Output channels

can be configured or “grouped” to

create a single output with higher

current and power capability.

Figure 1: Connecting units in series

Figure 2: Connecting units in parallel

Power supply

EL = EM + E1 + E2

–

ELRL

IL = IM + I1 + I2

Power supply

–

Power supply

–

Simplify battery drain analysis

with analysis tools

To adequately specify the power

source for products that exhibit

pulsed and dynamic current loading

(such as digital cellular phone and

hard drives), you need to evaluate

both the peak and dc averages

current draws.

You could use an oscilloscope to

monitor a shunt or a current probe,

but this approach raises issues with

voltage drops, ground loops, common

mode noise, space, and calibration.

As a simpler and cheaper alternative,

use a power supply with built-in

measurement capabilities. The

Agilent 66300 mobile communications

dc sources store up to 4,096 data

points at sample intervals from 15 µs

to 31,200 s. Like an oscilloscope, they

acquire pre- and post-trigger buffer

data by crossing a user-set threshold.

The Agilent 14565B device character-

ization software is an automation

tool compatible with the 66319/21B

or D. These four sources have battery

emulation capabilities and work

with the software to accurately test

today’s communication devices as

well as your next generation designs

for cell phones, PDAs, Bluetooth™

enabled devices, and wireless LAN

access devices. The software features

dynamic current characterization

(Figure 1), data logging (Figure 2),

and CCDF measurements (Figure 3).

Figure 1. Waveform capture and analysis

using the Agilent 14565B software.

Figure 2. Data logging and analysis using the

Agilent 14565B software.

Tip

Figure 3. Complementary cumulative distribution function (CCDF)

capture and analysis using the Agilent 14565B software.

Characterize inrush current with

an ac power source/analyzer

Tip

8• Uncover component stresses

• Check to see if a product produces

ac mains disturbances that

interact with other products

connected to the same branch

circuit

• Select proper fuses and circuit

breakers

However, this can be a challenging

measurement because you have to

synchronize the current digitization

and peak current measurement with

the startup phase of the voltage.

Worst case inrush currents occur

near the voltage cycle’s peak and

when the ac input capacitor of the

DUT is fully discharged at startup.

Therefore, you must perform tests at

incremental voltage startup phases

from about 40° to 90° (Figure 1) and

let the DUT’s ac input capacitor

discharge between tests.

A traditional test setup includes an

ac source with programmable phase

capability and an output trigger port,

a digital oscilloscope, and a current

probe. However, using an advanced

ac power source/analyzer such as the

Agilent 6800 series ac power

source/analyzers is easier because

they have built-in generation, current

waveform digitization, peak current

measurement, and synchronization

capabilities that let you perform

inrush current characterization

without cabling and synchronizing

separate instruments.

On the dc side, the Agilent N6705A

dc power analyzer helps characterize

the power of a device much like the

ac power source/analyzer, except

for dc power.

Figure 1: An inrush current measurement at 40° using Agilent 6800 series ac power

source/analyzers

The inrush current characteristics of

ac-dc switch mode power supplies

vary with the turn-on phase of the

voltage cycle. Usually, these power

supplies have input capacitors that

draw high peaks of inrush current as

they charge from the rectified ac line

at turn-on. Characterizing inrush

current versus turn-on phase can

provide some important design

insights:

Output

voltage

Start up

phase of

40 degrees

Bus trigger

Peak current measurement

Inrush current

Digitized inrush

current

data points

Tip

Use a power supply to

measure DUT supply current

Accurately measuring DUT supply

currents above 10 A is beyond the

range of the typical DMM in ammeter

mode. You could use an external

shunt and the DMM’s voltage mode,

but using the power supply itself is a

better solution. Many supplies include

an accurate measurement system,

including a shunt. Current (with the

internal shunt) or voltage measure-

ments at the DUT can be as simple

as sending a MEAS command to the

power supply.

The following table shows the level of

measurement accuracy you can expect

with a good-quality supply:

Output level Typical accuracy

Full 0.1% to 0.5%

10% of full output 0.5% to 1%

1% of full output near 10%

While the advantages of using the

power source to measure high currents

is clear, using it to measure low

currents may not be as obvious.

A system DMM has 0.01 percent to

0.1 percent accuracy, although this

doesn’t include other possible errors

that can affect the measurement, such

as cabling. In contrast, the power

supply accuracy figures in the table

include all applicable factors.

A good system DMM can measure

current down to the picoamp level,

but you rarely need to measure DUT

supply currents this low. In most cases,

the toughest measurement will involve

current draw by a battery-powered

device in sleep mode (such as a

cellular phone), where measuring

1-10 mA with reasonable accuracy

is usually all you need.

Most power supplies’ current readback

performs well between full scale and

10% of full scale. You can also choose

a power supply with multiple range

readback. For example, power sources,

such as the Agilent N676xA precision

modules, offer full scale accuracy of

0.04% + 15 µA at low range (100 mA)

or 0.04% + 160 µA at high range (3 A).

Create dc power waveforms with list mode

Instead of using a DAC or arbitrary

waveform generator to drive a power

supply to create dc power waveforms,

consider using a single power product

with list mode. List mode lets you

generate complex sequences of output

changes with rapid, precise timing

which may be synchronized with

internal or external signals. They

contain up to 512 individually

programmed steps and can be

programmed to repeat themselves.

Using list mode helps you create

dc power waveforms such as:

• Pulse trains

• Ramps

• Staircases

• Low frequency sinewaves with

dc offset

• Arbitrary voltage and current

waveforms

You can create a sequence of up to

512 command steps to define voltage

or current steps and set dwell times

for each step. These waveforms can

also trigger on internal or external

events and be repeated (Figure 1).

Once the list of commands is stored

in the power supply, the entire list

is executed by a single command.

This reduces command processing

time and simplifies code. Example

applications include powering power

supply rejection ratio test, simulating

automotive crank profiles, and

generating pulse dropouts.

Power products such as the Agilent

N675xA and N676x modules in the

Agilent N6700 Modular Power System

have list mode. The maximum

frequency of the waveform is limited

by the power module and voltage

setting of the test.

In addition, the Agilent N6705A dc

Power Analyzer is a unique bench

product with list mode. You can

program arbitrary waveforms

directly from the front panel with-

out writing a single line of code.

Tip

Figure 1: An arbitrary voltage waveform example with a repeat count of 2.

Trigger

01 2 3 4 5

List Count = 1 List Count = 2

Power products

that do more and

demand less

Agilent Technologies’ “one-box” philosophy means we pack more and more capability into the power products

themselves, in some cases giving you a rack’s worth of capability in a single box. By offering more, these products

demand less from you—fewer instruments, less rack space, simpler test setups, and lower cost of ownership.

Modular power systems

Model 66101A 66102A 66103A 66104A 66105A 66106A

Output ratings at 40° C

Output voltage 0 to 8 V 0 to 20 V 0 to 35 V 0 to 60 V 0 to 120 V 0 to 200 V

Output current 0 to 16 A 0 to 7.5 A 0 to 4.5 A 0 to 2.5 A 0 to 1.25 A 0 to 0.75 A

Maximum power 128 W 150 W 157.5 W 150 W 150 W 150 W

Basic Models N6731A/41A N6732A/42A N6733A/43A/73A N6734A/44A/74A N6735A/45A/75A N6736A/46A/76A

Output ratings at 40° C

Output voltage 5 V 8 V 20 V 35 V 60 V 100 V

Output current 10 A/20 A 6.25 A/12.5 A 2.5 A/5 A/15 A 1.5 A/3 A/8.5 A 0.8 A/1.6 A/5 A 0.5 A/1 A/ 3 A

Maximum power 50 W/100 W 50 W/100 W 50 W/100 W/300 W 52.5 W/105 W/300 W 50 W/100 W/300 W 50 W/100 W/300 W

Hi-Perf, Precision Models

N6751A/52A N6753A** N6754A N6761A/62A *

Output ratings at 40° C

Output voltage 50 V 20 V 60 V 50 V

Output current 5 A/10 A 50 A 20 A 1.5 A/3 A

Maximum power 50 W/100 W 300 W 300 W 50 W/100 W

* Precision power supplies

** Module not compatible with the N6705A.

66000 MPS

• High power density – up to

eight supplies in seven inches

of rack space

• Low noise, stable power

• High accuracy programming

and readback

The Agilent N6705A is the bench

version of the N6700. It uses the

same modules as the N6700 and

combines the functionality of

many instruments for dc power

characterization.

• Feature rich – up to 4 supplies,

oscilloscope-like display, arb

capabilities

• Output synchronization controls,

inrush current testing, data

logging

• External BNC and digital port for

easy triggering

N6700 MPS

• Up to four supplies in 1.25 inches

of rack space

• Flexible – three performances:

basic, hi-perf, and precision

modules

• Easy connectivity – LXI Class C

with GPIB, LAN, and USB

Modular Power Systems (MPS)

With rack space at a premium, the Agilent 66000 and N6700 modular power

systems’ growing popularity is no surprise. Mix and match modules to fit the

needs of many applications. These systems are small, flexible, and fast.

Power you can count on year after year

Single-output dc supplies

40 W and 100 W 6612C 6632B 6633B 6634B

Voltage 0 to 20 V 0 to 20 V 0 to 50 V 0 to 100 V

Current 0 to 2 A 0 to 5 A 0 to 2 A 0 to 1 A

6541A* 6542A* 6543A* 6544A* 6545A*

200 W 6641A 6642A 6643A 6644A 6645A

Output voltage 0 to 8 V 0 to 20 V 0 to 35 V 0 to 60 V 0 to 120 V

Output current (40° C) 0 to 20 A 0 to 10 A 0 to 6 A 0 to 3.5 A 0 to 1.5 A

6551A* 6552A* 6553A* 6554A* 6555A*

500 W 6651A 6652A 6653A 6654A 6655A

Output voltage 0 to 8 V 0 to 20 V 0 to 35 V 0 to 60 V 0 to 120 V

Output current (40° C) 0 to 50 A 0 to 25 A 0 to 15 A 0 to 9 A 0 to 4 A

750 W N5741A ** N5742A ** N5743A N5744A ** N5745A N5746A **

1.5 kW N5761A ** N5762A ** N5763A N5764A ** N5765A N5766A **

Output voltage 0 to 6 V 0 to 8 V 0 to 12.5 V 0 to 20 V 0 to 30 V 0 to 40 V

Maximum current (40°C) 100 A / 180 A 90 A / 165 A 60 A / 120 A 38 A / 76 A 25 A / 50 A 19 A / 38 A

750 W (continued) N5747A N5748A ** N5749A N5750A N5751A N5752A **

1.5 kW (continued) N5767A N5768A ** N5769A N5770A N5771A N5772A **

Output voltage 0 to 60 V 0 to 80 V 0 to 100 V 0 to 150 V 0 to 300 V 0 to 600 V

Maximum current (40°C) 12.5 A / 25 A 9.5 A / 19 A 7.5 A / 15 A 5 A / 10 A 2.5 A / 5 A 1.3 A / 2.6 A

6571A* 6572A* 6573A* 6574A* 6575A*

2 kW 6671A 6672A 6673A 6674A 6675A

Output voltage 0 to 8 V 0 to 20 V 0 to 35 V 0 to 60 V 0 to 120 V

Output current 0 to 220 A 0 to 100 A 0 to 60 A 0 to 35 A 0 to 18 A

5 kW 6680A 6681A 6682A 6683A 6684A

Voltage 0 to 5 V 0 to 8 V 0 to 21 V 0 to 32 V 0 to 40 V

Current 0 to 875 A 0 to 580 A 0 to 240 A 0 to 160 A 0 to 128 A

(40° C, then derated linearly 1%/° C to 55° C)

6.6 kW 6690A 6691A 6692A

Voltage 0 to 15 V 0 to 30 V 0 to 60 V

Current 0 to 440 A 0 to 220 A 0 to 110 A

(40° C, then derated linearly 1%/° C to 55° C)

* Economy versions with identical specifications, but without GPIB.

** Supply is rated at the voltage and current combination – may be higher or lower than indicated.

Single-output dc supplies

These supplies will clean up your ATE

power without cleaning out your budget. Not

only do you buy more performance with the

Agilent 6600 or N5700 series, their one-box

integration means you’ll buy less equipment

overall, too.

• Clean, reliable dc power from 40 W to 6.6 W

• Designed for fast, easy system integration

• Built-in V & I readback for one-box

convenience

• LXI Class C N5700 supplies with GPIB,

LAN, and USB

We’ve been a leader in the power

products business for more than

half a century because engineers like

you know they can count on Agilent

performance, reliability and value.

Even our least-expensive dc supplies

offer low ripple and noise with tight

load and line regulation. Our high

precision products give you the exact

power levels you need, with accurate

readback measurements to match.

Plus, every product you see here is

covered by a one-year warranty.

To learn more about these power

solutions, visit our Web site at

www.agilent.com/find/power.

Power products that do more and demand less

Electronic Loads

Model 6060B, N3304A 6063B, N3303A N3302A N3306A N3305A N3307A

Input voltage 0 to 60 V 0 to 240 V 0 to 60 V 0 to 60 V 0 to 150 V 0 to 150 V

Input current 0 to 60 A 0 to 10 A 0 to 30 A 0 to 120 A 0 to 60 A 0 to 30 A

Max. current derated

linearly below 2 V

Maximum power 300 W 250 W 150 W 600 W 500 W 250 W

Dynamic measurement dc supplies Solar array simulator

Model 66332A 66319B/D 66321B/D E4350B E4351B

Voltage 0 to 20 V 0 to 15 V 0 to 15 V 0 to 65 V 0 to 130 V

Current 0 to 5 A 0 to 3 A 0 to 3 A 0 to 8 A 0 to 4 A

Maximum power 100 W 45 W 45 W 480 W 480 W

Dynamic measurement dc supplies

The Agilent 66300 series are the first

power supplies with instantaneous

peak measurement capability, so you

no longer need a scope or high-speed

digital voltmeter to test devices that

draw pulsed current.

• Ideal for testing wireless and

battery powered products

• Superior output transient

performance*

• Programmable output resistance*

• 14565B device characterization

software for battery drain analysis*

Solar array simulator (SAS)

The Agilent E4350-series SAS

simulates the output characteristics

of a satellite’s solar panels. It’s also a

great example of our ability to create

unique power solutions to meet

unique application challenges.

• Simulate I-V curves of a solar

array under various conditions

• Operate the system in three

different modes for maximum

flexibility

• Have fast recovery time

Electronic Loads

Agilent’s integrated electronic loads

help you save time, money, and rack

space while delivering precise control

and all the capabilities you need for

analyzing dc power sources and

devices. Use the programmable pulse

waveform generator or use analog

programming to simulate real-life

load conditions.

• Ideal for evaluating dc power

sources and power components

• Lower costs while improving

ease of use and test quality

• Single-input and modular units

with proven record of reliability

ac power source/analyzers

From avionics to uninterruptible

power supplies, customers are

demanding products that can use

power efficiently while handling all

kinds of ac line disturbances. To

make sure your products meet these

growing expectations, test them with

the Agilent 6800-series ac power

source/analyzers.

• The fast, easy way to generate

both clean and distorted ac power

for product testing

• A complete solution in a single,

compact, tightly integrated box

with graphical user interface

• Built-in 16-bit power analyzer

precisely measures all important

parameters

• dc output voltage capability of

±425 V (derated power)

ac Power Source/analyzers

Model 6811B 6812B 6813B

Max power 375 VA 750 VA 1750 VA

# of phases 1 1 1

Rms output voltage 0 to 300 V 0 to 300 V 0 to 300 V

Rms output current 0 to 3.25 A 0 to 6.5 A 0 to13 A

For more information, visit our Web site at www.agilent.com/find/power.

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www.agilent.com/find/open

Agilent Open simplifies the process

of connecting and programming

test systems to help engineers

design, validate and manufacture

electronic products. Agilent offers

open connectivity for a broad range

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industry software, PC-standard I/O

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test system development.

www.lxistandard.org

LXI is the LAN-based successor to

GPIB, providing faster, more efficient

connectivity. Agilent is a founding

member of the LXI consortium.

You’re trying to get the most from

your power products and get the

best power products for your

money—and this booklet is a great

place to start. You’ll find 10 easy

and practical ways to improve

power generation and measure-

ment, along with a brief look

at our most popular power

instruments and systems.

For more information,

visit our Web site at

www.agilent.com/find/power.

Remove all doubt

Our repair and calibration services

will get your equipment back to you,

performing like new, when prom-

ised. You will get full value out of

your Agilent equipment through-

out its lifetime. Your equipment

will be serviced by Agilent-trained

technicians using the latest factory

calibration procedures, automated

repair diagnostics and genuine parts.

You will always have the utmost

confidence in your measurements.

Agilent offers a wide range of

additional expert test and measure-

ment services for your equipment,

including initial start-up assistance

onsite education and training, as well

as design, system integration, and

project management.

For more information on repair and

calibration services, go to:

www.agilent.com/find/removealldoubt

www.agilent.com

For more information on Agilent Technologies’

products, applications or services, please

contact your local Agilent office. The complete

list is available at:

www.agilent.com/find/contactus

Americas

Canada (877) 894-4414

Latin America 305 269 7500

United States (800) 829-4444

Asia Pacific

Australia 1 800 629 485

China 800 810 0189

Hong Kong 800 938 693

India 1 800 112 929

Japan 81 426 56 7832

Korea 080 769 0800

Malaysia 1 800 888 848

Singapore 1 800 375 8100

Taiwan 0800 047 866

Thailand 1 800 226 008

Europe

Austria 0820 87 44 11

Belgium 32 (0) 2 404 93 40

Denmark 45 70 13 15 15

Finland 358 (0) 10 855 2100

France 0825 010 700

Germany 01805 24 6333*

*0.14 /minute

Ireland 1890 924 204

Italy 39 02 92 60 8484

Netherlands 31 (0) 20 547 2111

Spain 34 (91) 631 3300

Sweden 0200-88 22 55

Switzerland (French) 41 (21) 8113811(Opt 2)

Switzerland (German) 0800 80 53 53 (Opt 1)

United Kingdom 44 (0) 118 9276201

Other European Countries:

www.agilent.com/find/contactus

Revised: May 7, 2007

Product specifications and descriptions

in this document subject to change

without notice.

Printed in USA, September 21, 2007

5965-8239E