Tektronix TDSPWR1 User Manual
User Manual
TDSPWR1
Power Analysis Applications
071-0203-01
This document applies to software version 1.0.0
and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
User Manual
TDSPWR1
Power Analysis Applications
071-0203-01
This document supports software version 1.0.0
and above.
Warning
The servicing instructions are for use by
qualified personnel only. To avoid personal
injury, do not perform any servicing unless you
are qualified to do so. Refer to all safety
summaries prior to performing service.
Copyright © T ektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and
are protected by United States copyright laws and international treaty provisions.
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the
Rights in T echnical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the
Commercial Computer Software – Restricted Rights clause at F AR 52.227-19, as applicable.
T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
WARRANTY
T ektronix warrants that the media on which this software product is furnished and the encoding of the programs on the media
will be free from defects in materials and workmanship for a period of three (3) months from the date of shipment. If a
medium or encoding proves defective during the warranty period, T ektronix will provide a replacement in exchange for the
defective medium. Except as to the media on which this software product is furnished, this software product is provided “as
is” without warranty of any kind, either express or implied. T ektronix does not warrant that the functions contained in this
software product will meet Customer’s requirements or that the operation of the programs will be uninterrupted or error-free.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period. If T ektronix is unable to provide a replacement that is free from defects in materials and workmanship
within a reasonable time thereafter, Customer may terminate the license for this software product and return this software
product and any associated materials for credit or refund.
THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR
IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO
REPLACE DEFECTIVE MEDIA OR REFUND CUSTOMER’S PAYMENT IS THE SOLE AND EXCLUSIVE
REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS
VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF
THE POSSIBILITY OF SUCH DAMAGES.
Table of Contents
Getting Started
Operating Basics
Related Documentation vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conventions vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting T ektronix viii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compatibility 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements and Restrictions 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Updates 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Application 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downloading Updates from the Web 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Under Test Connections 5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Current Measurements 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Measurements 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Overview 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting the Application 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Local Help 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using Other Functions 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T aking a Measurement 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing the Waveform 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exiting the Application 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tutorial 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Up the Oscilloscope 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting the Application 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading the Reference Waveform Files 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T aking a Power and Energy Measurement 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving a Setup and Exiting the Application 18. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recalling a Setup 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T aking a Current Harmonics Measurement 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T aking a Power Factor Measurement 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Frequency 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User-Defined Frequency 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference
Menu Structure 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setup Parameters 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving and Recalling Setups 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Power and Energy 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measuring Current Harmonics 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDSPWR1 Power Analysis Applications User Manual
i
Table of Contents
Index
Measuring Power Factors 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Localizing Measurements 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Measurement Descriptions 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
W arning Messages 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power and Energy Measurements 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current Harmonics Measurements 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Factor Measurements 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TDSPWR1 Power Analysis Applications User Manual
List of Figures
Table of Contents
Figure 1: TDSPWR1 Power Analysis Applications 1. . . . . . . . . . . . . . .
Figure 2: Current measurements configuration 5. . . . . . . . . . . . . . . . .
Figure 3: Power measurements configuration 6. . . . . . . . . . . . . . . . . . .
Figure 4: Starting the application 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5: Power Analysis Applications initial display 8. . . . . . . . . . . . .
Figure 6: Utility menu 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 7: Returning to the application 9. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8: The Control menu 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9: Default tutorial reference waveforms, Ref1 and Ref2 14. . . . .
Figure 10: Ref1 and Ref2, scaled and repositioned 15. . . . . . . . . . . . . . .
Figure 11: Input Config setup for the Power and Energy lesson 16. . . .
Figure 12: View menu for the Power and Energy lesson 17. . . . . . . . . . .
Figure 13: Resulting Ref3 and Ref4 waveforms 18. . . . . . . . . . . . . . . . . .
Figure 14: Saved setup files on the hard disk 19. . . . . . . . . . . . . . . . . . . .
Figure 15: Input Config setup for the Current Harmonics lesson 20. . .
Figure 16: Default table of harmonic limits 21. . . . . . . . . . . . . . . . . . . . .
Figure 17: IEC 61000-3-2 configuration for the Current
Harmonics lesson 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 18: Harmonic Limits LIM_TBL1 values for the lesson 23. . . . . .
Figure 19: Tabular results for the Current Harmonics lesson 24. . . . . .
Figure 20: Bar graph results for the Current Harmonics lesson 25. . . .
Figure 21: Input Config setup for the Power Factor lesson 26. . . . . . . .
Figure 22: Results for the Power Factor lesson 27. . . . . . . . . . . . . . . . . .
Figure 23: User-defined signal frequency for the Power
Factor lesson 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 24: User-defined frequency results for the Power
Factor lesson 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 25: Application menu structure 29. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 26: Save Setup and Recall Setup selections in the
Utility menu 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 27: Power & Energy initial display 32. . . . . . . . . . . . . . . . . . . . . .
Figure 28: Power & Energy View menu 33. . . . . . . . . . . . . . . . . . . . . . . .
Figure 29: Power & Energy Input Config menu 34. . . . . . . . . . . . . . . . .
Figure 30: Current Harmonics initial display 35. . . . . . . . . . . . . . . . . . .
TDSPWR1 Power Analysis Applications User Manual
iii
Table of Contents
List of Tables
Figure 31: Harmonic Limits Table menu with default values 36. . . . . . .
Figure 32: Config IEC 61000-3-2 configuration menu 37. . . . . . . . . . . .
Figure 33: An activated current harmonic limits table 38. . . . . . . . . . . .
Figure 34: Current Harmonics View menu 39. . . . . . . . . . . . . . . . . . . . .
Figure 35: Current Harmonics Input Config menu 40. . . . . . . . . . . . . . .
Figure 36: I-Probe R vs Freq configuration menu 41. . . . . . . . . . . . . . . .
Figure 37: Power Factor initial display 42. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 38: Power Factor Input Config menu 43. . . . . . . . . . . . . . . . . . . .
Figure 39: Examples of the results for all three measurements 45. . . . .
Figure 40: Power and Energy measurement results 47. . . . . . . . . . . . . .
Table 1: Power measurements channel assignments 6. . . . . . . . . . . . . .
Table 2: Power and Energy waveform definitions 34. . . . . . . . . . . . . . .
Table 3: Current Harmonics waveform definitions 41. . . . . . . . . . . . . . .
iv
TDSPWR1 Power Analysis Applications User Manual
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 the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.
Connect and Disconnect Properly . Connect the probe output to the measurement
instrument before connecting the probe to the circuit under test. Disconnect the
probe input and the probe ground from the circuit under test before disconnecting
the probe from the measurement instrument.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
Symbols and Terms
T erms in this Manual. This term may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
TDSPWR1 Power Analysis Applications User Manual
v
General Safety Summary
vi
TDSPWR1 Power Analysis Applications User Manual
Preface
Related Documentation
Conventions
This manual contains operating information for the TDSPWR1 Power Analysis
Applications. The manual consists of the following chapters:
H The chapter Getting Started briefly describes the TDSPWR1 Power Analysis
Applications and provides installation instructions.
H The chapter Operating Basics covers basic operating principles of the
application.
H The chapter Reference describes how to perform specific tasks.
Your oscilloscope user manual provides operating instructions for general
oscilloscope features.
This manual uses the following conventions:
H This manual refers to the TDSPWR1 Power Analysis Applications as either
the Power Analysis Applications or as the application.
H When steps require that you make a sequence of selections using front panel
controls and menu buttons, an arrow ( ➞
front panel button and a menu, or between menus. Names that are for a main
menu or side menu item are clearly indicated: Press VERTICAL MENU ➞
Coupling (main) ➞ DC (side) ➞ Bandwidth (main) ➞ 250 MHz (side).
H The waveforms have subscript annotation with the following meanings:
H V represents electrical potential and is measured in Volts
H I represents electrical current and is measured in Amperes
H P represents power (voltage times current) and is measured in Watts
H E represents energy and is measured in Joules
) marks each transition between a
TDSPWR1 Power Analysis Applications User Manual
vii
Preface
Contacting Tektronix
Product
Support
Service
Support
For other
information
To write us Tektronix, Inc.
For application-oriented questions about a Tektronix measurement product, call toll free in North America:
1-800-TEK-WIDE (1-800-835-9433 ext. 2400)
6:00 a.m. – 5:00 p.m. Pacific time
Or contact us by e-mail:
tm_app_supp@tek.com
For product support outside of North America, contact your
local Tektronix distributor or sales office.
Contact your local Tektronix distributor or sales office. Or visit
our web site for a listing of worldwide service locations.
http://www.tek.com
In North America:
1-800-TEK-WIDE (1-800-835-9433)
An operator will direct your call.
P.O. Box 1000
Wilsonville, OR 97070-1000
viii
TDSPWR1 Power Analysis Applications User Manual
Getting Started
Product Description
The TDSPWR1 Power Analysis Applications contain three measurement modes
that add power supply analysis capability to your Tektronix oscilloscope. With
this application, you can acquire and analyze energy emissions and consumption
in accordance with IEC standards. Figure 1 shows an example of the results of a
Power Analysis Applications measurement.
Figure 1: TDSPWR1 Power Analysis Applications
Compatibility
The Power Analysis Applications are compatible with the following Tektronix
oscilloscopes:
H All TDS 500D and 700D Digital Phosphor Oscilloscopes with Option 2M
(8 MB record length and hard disk drive)
H TDS 700C Color Digitizing Oscilloscopes serial number BO20100 or higher
with Option 2M (8 MB record length and hard disk drive) and with firmware
version 5.2e and up.
For a current list of compatible oscilloscopes, check the Tektronix, Inc. web site,
http://www.tek.com/Measurement/
Requirements and Restrictions
The TDSRTE1 Run-Time Environment must be installed on the oscilloscope to
operate the Power Analysis Applications.
in the Support category.
TDSPWR1 Power Analysis Applications User Manual
1
Product Description
Updates
Accessories
The application does not support external GPIB commands.
You can find information about this and other applications at the Tektronix, Inc.
web site, http://www.tek.com/Measurement/
this site for application updates that you can download.
There are no standard accessories for this product.
under the Support category. Check
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TDSPWR1 Power Analysis Applications User Manual
Installation
This application is written on a floppy disk. Updates, if any, can be downloaded
from the Tektronix web site.
NOTE. The Power Analysis Applications requires the TDSRTE1 Run-Time
Environment to be installed on the oscilloscope. If you have not already installed
the TDSRTE1, you should do so now.
Installing the Application
To install the application from the floppy disk to your oscilloscope, follow these
steps:
1. Power off the oscilloscope.
NOTE. Additional information about the application or installation is located in a
Readme.txt file on the floppy disk. You should insert the floppy disk into a
DOS-based personal computer and read the Readme.txt file before you continue.
If you are updating the application, the Readme.txt file on the Tektronix web site
supercedes the Readme.txt file on the floppy disk.
2. Insert the disk in the floppy disk drive and power on the oscilloscope.
After performing the power-up self-test, the oscilloscope automatically
begins the installation procedure.
As the application loads from the disk, the oscilloscope displays a clock icon
to indicate that it is busy. Also, the floppy disk drive LED is on, indicating
activity. If the clock icon continues to display after the floppy disk LED has
gone out, a problem has occurred with the installation. Repeat the above
procedure. If the problem persists, contact your Tektronix representative.
When the installation is complete, an Installation Complete message
displays.
3. Remove the floppy disk and cycle power to the oscilloscope.
TDSPWR1 Power Analysis Applications User Manual
3
Installation
Downloading Updates from the Web
If there is an update for this application, it will be available from the Tektronix
web site. To install an application update, you will need to download it from the
web site to a hard disk, copy it to a DOS-formatted floppy disk, and then install it
on your oscilloscope.
NOTE. More information about changes to the application or installation is
located in a Readme file on the web site. You should read it before you continue.
To copy the application from the Tektronix web site, follow these steps:
1. Access the Tektronix web site at http://www.tek.com
2. Select the Measurement web page.
3. Click the Support category.
4. Click the Application Support Files item. This takes you to an FTP site.
5. Click the TDS/THS Files Area item. This takes you to the application files
specific to these oscilloscopes.
6. Scroll through the files to the TDSPWR1 application, and download it to
your hard disk drive.
7. If necessary, unzip the file.
8. Copy the application from the hard disk drive to a DOS-formatted floppy
disk.
9. Follow the Installing the Application procedure on page 3.
/.
4
TDSPWR1 Power Analysis Applications User Manual
Equipment Under Test Connections
The probes you use to connect between your EUT (equipment under test) and
oscilloscope depend on the type of measurement you will take: current or power.
You can use these schemes as typical ways to connect and to characterize the
power supply of an EUT. However, the connection can be to any point of interest.
Current Measurements
When using the Current Harmonics mode, you need to connect a current probe
between the EUT and the oscilloscope. Figure 2 shows a typical connection.
WARNING. To avoid electric shock, you must ensure that power is removed from
the EUT before attaching a probe to it. Do not touch exposed conductors except
with the properly rated probe tips. Refer to the probe manual for proper use.
Power down the EUT before connecting the probe to it.
Low distortion AC
power source
Oscilloscope
Electrical equipment
under test
Neutral
Gnd
CH 2
Figure 2: Current measurements configuration
For connection to the Current signal, you can use an oscilloscope probe designed
specifically for measuring current, such as the Tektronix TCP202 probe.
The default Current signal is assigned to channel 2.
NOTE. Do not change the signal assignment of channel 2. The application always
uses the input data on channel 2 as the Current signal.
TDSPWR1 Power Analysis Applications User Manual
Power cord
Current signal
Current probe
Power
supply
Line
5
Installation
Power Measurements
When using the Power Factor mode or the Power and Energy mode, you need to
connect a voltage probe appropriate for the EUT (such as a differential voltage
probe) and a current probe between the EUT and the oscilloscope. Figure 3
shows a typical connection.
WARNING. To avoid electric shock, you must ensure that power is removed from
the EUT before attaching probes to it. Do not touch exposed conductors except
with the properly rated probe tips. Refer to the probe manuals for proper use.
Power down the EUT before connecting probes to it.
Electrical equipment
under test
Neutral
Gnd
Power
supply
Line
Current probe
Red
Black
Oscilloscope
CH 2CH 1
Low distortion
AC power source
Current signal
Voltage signal
Power cord
High voltage
differential probe
Figure 3: Power measurements configuration
For connection to the Voltage signal, you can use a differential voltage probe,
such as the Tektronix P5205, 100 MHz High Voltage Differential Probe. For
connection to the Current signal, you can use an oscilloscope probe designed
specifically for measuring current, such as the Tektronix TCP202 probe.
Table 1 shows the default channel-to-signal assignments.
T able 1: Power measurements channel assignments
Channel Reference Signal assignment
Ch 1 Ref 1 Voltage signal
Ch 2 Ref 2 Current signal
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TDSPWR1 Power Analysis Applications User Manual
Operating Basics
Functional Overview
This section contains descriptions of the basic functions of the Power Analysis
Applications and how to use them. Further details about the basic functions and
descriptions of more advanced features are included in the Reference section.
Starting the Application
You can start the Power Analysis Applications after it has been installed in the
oscilloscope. To start the application, follow these steps:
1. Press SETUP ➞ Select Application (main).
2. Use the general purpose (GP) knob to select hd0, and press SELECT.
3. Use the GP knob to select the TDSPWR1.APP title, as shown in Figure 4,
and press Activate Application (side).
Figure 4: Starting the application
TDSPWR1 Power Analysis Applications User Manual
7
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