Tektronix DPO3PWR User manual

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DPO3PWR, MDO3PWR and DPO4PWR
Power Analysis Modules
ZZZ
User Manual
*P071263101*
071-2631-01

DPO3PWR, MDO3PWR and DPO4PWR
Power Analysis Modules
ZZZ
User Manual
xx
www.tektronix.com
071-2631-01

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by
national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously
published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
TEKPROBE is a registered trademark of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Bo x 5 00
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.

Table of Contents
Table of Contents
General safety summary . .. ................................................................................................................ iii
Preface..................................................................................................................................... vii
Installing the Application Module........................................................................................................... 1
Gathering Equipment ................................................................................................................. 1
Ratings................................................................................................................................ 2
Inserting the Application Module Key . ............................................................................................... 4
Getting Started.............................................................................................................................. 7
Deskewing Probes......................................................................................................................... 10
Measuring Power Quality.................................................................................................................. 17
Measuring Switching Loss................................................................................................................. 22
Measuring Harmonics ..................................................................................................................... 27
Measuring Ripple.......................................................................................................................... 31
Measuring Modulation . .................................................................................................................... 33
Measuring Safe Operating Area .......................................................................................................... 35
Making dI/dt and dV/dt Measurements.................................................................................................... 38
Index
DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual i

Table of Contents
ii DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual

General safety summary
General safety summary
Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it.
To avoid potential hazards, use this product only as specified.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of a larger system. Read the safety sections of the other component
manuals for warnings and cautions related to operating the system.
To avoid fire or personal injury
Use proper power cord. Use only the power cord specified for this product and certified for the country of use.
Connect and disconnect properly. Do not connect or disconnect probes or test leads while they are connected to a voltage
source.
Connect and disconnect properly. De-energize the circuit under test before connecting or disconnecting the current probe.
Connect and disconnect properly. Connect the probe output to the measurement instrument before connecting the probe to the
circuit under test. Connect the probe reference lead to the circuit under test before connecting the probe input. Disconnect the probe
input and the probe reference lead from the circuit under test before disconnecting the probe from the measurement instrument.
Ground the product. This product is grounded through the grounding conductor of the power cord. To avoid electric shock,
the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of
the product, ensure that the product is properly grounded.
Observe all terminal ratings. To avoid fire or shock hazard, observe all ratings and markings on the product. Consult the product
manual for further ratings information before making connections to the product.
DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual iii

General safety summary
Connect the probe reference lead to earth ground only.
Do not apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.
Do not connect a current probe to any wire that carries voltages above the current probe voltage rating.
Power disconnect. The power cord disconnects the product from the power source. Do not block the power cord; it must remain
accessible to the user at all times.
Do not operate without covers. Do not operate this product with covers or panels removed.
Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected by qualified
service personnel.
Avoid exposed circuitry. Do not touch exposed connections and components when power is present.
Use proper AC adapter. Use only the AC adapter specified for this product.
Use proper fuse. Use only the fuse type and rating specified for this product.
Wear eye protection. Wear eye protection if exposure to high-intensity rays or laser radiation exists.
Do not operate in wet/damp conditions.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Provide proper ventilation. Refer to the manual's installation instructions for details on installing the product so it has proper
ventilation.
iv DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual

General safety summary
Terms in this manual
These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.
Symbols and terms on the product
These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the marking.
WARNING indicates an injury hazard not immediately accessible as you read the marking.
CAUTION indicates a hazard to property including the product.
DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual v

General safety summary
The following symbol(s) may appear on the product:
vi DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual

Preface
Preface
This manual describes operation of the DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules, which enable automatic
measurement of many common power measurements in the areas of power quality, harmonics, slew rate, switching loss, safe
operating area, ripple, and modulation analysis.
The DPO4PWR module works in MDO4000, MSO4000 and DPO4000 Series oscilloscopes.
The MDO3PWR module works in MDO3000 Series oscilloscopes.
The DPO3PWR module works in MSO3000 and DPO3000 Series oscilloscopes.
Specific analysis types include:
Power Quality
Switching Loss
Harmonics
Ripple
Modulation
Safe Operating Area
Slew rate
DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual vii

Preface
viii DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual

Installing the Application Module
Installing the Application Module
Gathering Equipment
Use appropriate equipment, such as the following, to make your power measurements:
MSO4000 or DPO4000 Series oscilloscopes with firmware version 2.17 or higher and the DPO4PWR application module
installed.
MDO4000 Series oscilloscopes with firmware version 2.08 or higher and the DPO4PWR application module installed.
MDO3000 Series oscilloscopes with firmware version 1.10 or higher and the MDO3PWR application module installed.
MSO3000 Series oscilloscopes with firmware version 2.06 or higher and the DPO3PWR application module installed.
DPO3000 Series oscilloscopes with firmware version 1.10 or higher and the DPO3PWR application module installed.
Differential probe, such as the TDP0500, TDP1000, THDP0200, TMDP0200, P5205A
TPA-BNC Probe Adapter (when needed)
Current probe, such as the TCP0020, TCP0030A, TCP0150 or TCP202A
TEK-DPG Deskew Pulse Generator
067-1686-XX Power Measurement Deskew and Calibration Fixture
DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual 1

Installing the Application Module
Ratings
MDO3000, MSO3000 and DPO3000 Series Channels 1 - 4: 1 MΩ,300V
RMS maximum (CAT II), or 50 Ω,±5V RMS maximum
(CAT I), or 75 Ω,±5V
RMS maximum (CAT I)
Aux Input: 300 VRMS maximum (CAT II)
MDO4000, MSO4000B and DPO4000B Series Channels 1 - 4: 1 MΩ,300V
RMS maximum (CAT II), or 50 Ω,±5V RMS maximum
(CAT I)
MSO4000 and DPO4000 Series Channels 1 - 4: 1 MΩ, 250 VRMS maximum (CAT I), or 50 Ω,±5VRMS
maximum (CAT I)
TDP0500 and TDP1000 probes Voltage probe: Rated 30 VRMS,42V
DC + Peak AC maximum
THDP0200 probe Voltage probe: Rated ± 1500 V maximum
TMDP0200 probe Voltage probe: Rated ± 750 V maximum
P5205A probe Voltage probe: Rated ± 1300 V, 1000 VRMS maximum (CAT II)
TPA-BNC adapter Probe adapter: Rated 30 VRMS,42V
Peak,or60V DC maximum
TCP0030A probe Current probe: Rated 30 ARMS maximum
TCP0020 probe Current probe: Rated 20 ARMS maximum
TCP202A probe Current probe: Rated 20 ARMS maximum
TCP0150 probe Current probe: Rated 150 A maximum (CAT II)
See the user manuals for these products to obtain more detailed specifications. You can find copies of Tektronix user manuals at:
www.tektronix.com/manuals
2 DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual

Installing the Application Module
NOTE. When making mains (CAT II) measurements with the MSO4000 and DPO4000 Series oscilloscopes, use an attenuating
probe properly rated for CAT II measurements.
Over-voltage categories are defined as follows:
CAT II: Local level mains, appliances, portable equipment
CAT I: Signal level, special equipment or parts of equipment, telecommunications, electronics
DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual 3

Installing the Application Module
Inserting the Application Module Key
To install a DPO3PWR, MDO3PWR or DPO4PWR application module in a compatible oscilloscope, follow these steps.
Basic Installation
Observe ESD precautions
1. To avoid damage to the oscilloscope or
the application module, observe proper
electrostatic discharge (ESD) precautions.
UseanESDstrap.
Insert the application key
2. While the oscilloscope is turned off, insert the
power analysis application key in the indicated
slot, to the right of the display.
4 DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual

Installing the Application Module
3. Power on the oscilloscope by pressing the on
button.
Wait until the display appears.
4. Press the front-panel Utility button.
5. Press the bottom-bezel About button. Verify
that the oscilloscope detects a copy of the
DPO3PWR, MDO3PWR or DPO4PWR Power
Analysis application module and reports a
firmware version shown in the table to the right.
Oscilloscope model
MSO4000 and
DPO4000 Series
MDO4000 Series
MDO3000 Series
DPO3000 Series
MSO3000 Series
Firmware version
2.17 or higher
2.08 or higher
1.10 or higher
1.10 or higher
2.06 or higher
For further information on general set up of the oscilloscope, please refer to the appropriate Series Oscilloscope User Manual.
DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual 5

Installing the Application Module
Checking and Troubleshooting the Module Installation
Use the following table to check that an application module is installed.
To check this module Push this front-panel button Check for
DPO3PWR, MDO3PWR or DPO4PWR Test A lower-bezel menu item appears
labeled: Power Analysis
If the lower-bezel menu button does
not indicate Power Analysis,pressthe
button and use the multipurpose knob A
to select Power Analysis.
If the oscilloscope does not recognize the application module, perform these steps:
1. Turn off the oscilloscope.
2. Follow the ESD precautions shown previously.
3. Remove the application module.
4. Examine the application module contacts for damage.
5. Reinsert the application module into the oscilloscope.
6. Power on the oscilloscope. If the oscilloscope still does not show the application menu item, you have a problem with the
application module or the module slot. Contact the nearest Tektronix service center to resolve the problem.
6 DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual

Getting Started
Getting Started
WARNING. To prevent electrical shock, do not exceed the measurement voltage ratings for the oscilloscope input BNC
connectors, probe tip, or probe ground (reference) lead. Ground-referenced oscilloscopes and probes are not intended to be used
for floating measurements.
1. Power on the oscilloscope.
Wait until the display appears.
2. Connect your probes to the oscilloscope, if
not already done. For power measurements,
typically insert the voltage probe into channel
1 and the current probe into channel 2.
DPO3PWR, MDO3PWR and DPO4PWR Power Analysis Modules User Manual 7