DPO3PWR and DPO4PWR Power Analysis Modules User Manual
Contents
1. cm TPA BNC a ep E SSE E Sample power quality screen shot Sample power quality instrument setup DPO3PWR and DPO4PWR Power Analysis Modules User Manual 17 Measuring Power Quality WARNING To prevent electrical shock always verify that the probe reference point is at ground potential before connecting the probe ground reference lead To Measure Power Quality Follow These Steps 1 Select the Power Quality feature from the side menu See page 7 Getting Started 2 Push Define Inputs to select which Application Analysis aa ES Een iced More channels to measure Frequently for these Power TS Spay i Quality Voltage measurements you will select a channel pair where channel 1 is used as a voltage source and channel 2 as a current source The Voltage and Current sources can be any analog waveforms whether live channels or references 3 Push Meas Display to choose which of the 10 power quality measurements to display 4 Push Frequency Reference to determine the source for the zero crossings for all Power Quality measurements and for frequency 18 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Measuring Power Quality 5 Push Reference Levels to choose how to make the power quality measurements 6 Push More to select Statistics Gating or Indicators Indicators show where on the waveform the oscilloscope is taking the m2. Measuring Safe Operating Area Measuring Safe Operating Area Use the safe operating area functions to view a graphical X Y display of the switching device under test s voltage and current Also use them to perform a mask test of the X Y signal relative to the graphical X Y description of the device specification limits The safe operating area is typically the voltage and current values that a semiconductor device can operate without damaging itself The safe operating display shown in these functions is a simple graphical method for monitoring the interactions between voltage and current and determining whether the device exceeds the limits specified in the manufacturer s data sheet for the device Wm ws DPO3PWR and DPO4PWR Power Analysis Modules User Manual 35 Measuring Safe Operating Area To Measure Safe Operating Area Follow These Steps 1 Select the Safe Operating Area feature from the side menu See page 7 Getting Started 2 Push Define Inputs to select which channels Application Analysis Denne pein renne Neen on Gating to measure For this measurement there Power SOA TB m is TEM are four valid voltage current input pairs These are Ch1 Ch2 Ch3 Ch4 Reference 1 Reference 2 and Reference 3 Reference 4 3 Push Define Axes to select either a log or linear graticule You can use the side menu items and multipurpose knob a to set the size of the graticule i The x axis typicall
3. e ee emm m rrr 3 Getting Started m P 7 DeskewingPrOD8S coh fe tee ah kee etd e ceu Se IM EP MET MEE eed 10 Measuring Power L015 mmm mme mme e emen nene emen senes eser enne e nnn 17 Measuririg Switching LOSS 5 ro E CR e o er ex esce roe de ome Ete d apa nor eov epis our Dv e 22 Measuring Harmorii6s s ee deett p t E E RU nek RE aM beum divum e e RM 27 EET CR 31 Measuring BTE mm E 33 Measuring Safe Operating Area sss meme e enne esee seen nne nnns 35 Making dl dt and dV dt Measurements isses mme E EEEE E messes eren nee nnn 38 Index DPO3PWR and DPO4PWR Power Analysis Modules User Manual i Table of Contents i DPO3PWR 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
4. 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 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 n
5. it is measured in power Watts It is calculated by taking the mean value of the math V A waveform Apparent The product of the RMS voltage and current mathematically the absolute value of the vector sum of the power true and reactive power Apparent power value Vays laus The unit of measure is Volt Amperes or VA Reactive power The reactive power in Volt Amp Reactive Reactive power Vans laus sine phase angle The unit of measure is VAR DPO3PWR and DPO4PWR Power Analysis Modules User Manual Measuring Power Quality True Power The ratio 0 to 1 of real power to apparent power If the signals are pure sine waves the power factor is the factor cosine of the phase angle between the current and voltage waveforms Apparent power Vans las Typically a higher power factor means more efficient use of energy A purely resistive circuit would have a power factor of 1 0 A purely inductive circuit would have a power factor of 0 Phase angle The angle 0 to 180 whose cosine is the true power factor Operating Tips W The power measurements in this menu are based on all the complete cycles found in the voltage waveform record DPO3PWR and DPO4PWR Power Analysis Modules User Manual 21 Measuring Switching Loss Measuring Switching Loss Use the switching loss functions to view tables of power loss and energy loss across the acquired waveform including turn on turn off conduction and tota
6. of a measurement value across the acquired waveform This is useful for showing the variations in the modulated switching signal meine t 1 E O ec o Sl eO oc eo cC O 25608 Booooo lo o c 0 L T 2200008 O iO I f oguumU f e fon 2631 006 Br u es_ amem z erie N TCP0030 SEPT clock Sample modulation screen shot i V Sample modulation instrument set up DPO3PWR and DPO4PWR Power Analysis Modules User Manual 33 Measuring Modulation WARNING To prevent electrical shock always verify that the probe reference point is at ground potential before connecting the probe ground reference lead To Measure Modulation Follow These Steps 1 Select the Modulation feature from the side menu See page 7 Getting Started 2 Push Define Inputs to identify which channels Application Analysis Define Source Modulator Reference the voltage and current waveforms are on Imm 5 VI si HESS IF Width 3 Push Source to choose which waveform to measure modulation on 4 Push Modulation Type to define what exactly to measure Choices include positive pulse width negative pulse width period frequency positive duty cycle and negative duty cycle 5 Push Reference Levels to define where to make the measurement 34 DPO3PWR and DPO4PWR Power Analysis Modules User Manual
7. which channels Application Analysis Define Test to Setup Display Save meas the voltage and current waveforms are on Inputs j Standard ii 3 Push Test to Standard to choose between general harmonics analysis or testing to a specific standard such as IEC 61000 3 2 or MIL STD 1399 4 f you selected None in the previous menu item this item will read Setup Push this to specify the number of harmonics to calculate whether to calculate harmonics on the voltage or the current waveform and how to determine the frequency of the primary waveform By default the frequency reference is set to the harmonics source however you can set it to the voltage waveform the current waveform or a fixed value if the voltage and current waveforms are noisy and the primary harmonic is not easy to determine If you selected IEC 61000 3 2 or MIL STD 1399 in a previous menu item use this item to further define what configuration of these standards you wish to measure DPO3PWR and DPO4PWR Power Analysis Modules User Manual 29 Measuring Harmonics 5 Push Display to choose whether to show harmonics information as a table or a bar chart You can also use this item to choose to display information for all just odd or just even harmonics if you did not previously choose to test to one of the supported standards 6 Push Save Meas to File to save the results to a csv file 30 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Me
8. DPO3PWR and DPO4PWR Power Analysis Modules User Manual POUCA ATA Tektronix 071 2631 00 S DPO3PWR and DPO4PWR Power Analysis Modules User Manual Revision A www tektronix com 071 2631 00 Tektronix 7 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 14200 SW Karl Braun Drive P O Box 500 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 00 0 ccc ccc cece eee ee nee nee EE EERE EEDA EE EEDA semen e hene e eene es ese esee ADEE EEE EES iii Preface m ETUR vii Installing the Application Module 32 re os ba eda in p oes EE Ue ee ye DR Gs OE EY YE CM ete es 1 Gathering Equipment WM 1 Rangs M EUST 2 Inserting the Application Module Key ceccececeece cence ee m me
9. asuring Ripple Measuring Ripple Use ripple to view a table of measurements and statistics for the AC components of the acquired waveform Ripple is often found on top of a large DC signal To Measure Ripple Follow These Steps 1 Select the Ripple feature from the side menu See page 7 Getting Started DPO3PWR and DPO4PWR Power Analysis Modules User Manual 31 Measuring Ripple 2 Push Define Inputs to identify which channels Application Analysis Define Source Do Vertical Set Offset Statistics i toset the voltage and current waveforms are on Power Ripple Inputs VI TUNE ed On 3 Push Source to choose whether to measure the ripple on the voltage or the current waveform 4 Push Do Vertical Autoset to remove the DC component from the signal by adding vertical offset and then auto scaling the AC component for optimal measurement accuracy Typically a ripple measurement involves looking at a very small voltage riding on a large voltage You want to use the internal resolution of the oscilloscope as effectively as possible to measure that small voltage With Do Vertical Autoset you can devote much more of the oscilloscope s ADC range to measurement of the desired ripple 5 Push Set Offset to 0 to remove all vertical offset 32 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Measuring Modulation Measuring Modulation Use the modulation function to view a trend plot
10. ation module and reports a firmware version of 2 17 or higher for MSO4000 and DPO4000 Series oscilloscopes and 1 10 or higher for DPO3000 Series oscilloscopes For further information on general set up of the oscilloscope refer to the MSO4000 and DPO4000 Series Oscilloscopes User Manual or the DPO3000 Series Oscilloscopes User Manual 4 DPO3PWR and DPO4PWR Power Analysis Modules User Manual 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 DPO4PWR or DPO3PWR A lower bezel menu item appears labeled Application Power If the oscilloscope does not recognize the application module perform these steps 1 Turn off the oscilloscope Follow the ESD precautions shown previously Remove the application module Examine the application module contacts for damage Reinsert the application module into the oscilloscope o gm t m 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 DPO3PWR and DPO4PWR Power Analysis Modules User Manual 5 Installing the Application Module 6 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Getting Started Getting Started WARNING To preve
11. e ground reference lead The d dt measurement appears in the bottom of the cursor readout It appears automatically when the power application key is installed Adjust the cursors to vary the portion of the waveform over which to measure The measurement works with both waveform and screen cursors If you have selected a voltage waveform the oscilloscope will display the dV dt measurement If you have selected a current waveform the oscilloscope will display the dl dt measurement DPO3PWR and DPO4PWR Power Analysis Modules User Manual 39 Making dl dt and dV dt Measurements 40 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Index Index C S Checking module installation 5 Insertion module 3 Safe operating area 35 Safety Summary iii D M Switching loss 22 Deskew 10 Modulation 33 dl dt measurements 38 Module insertion 3 T dV dt measurements 38 Troubleshooting module installation 5 P E Power quality 17 Equipment list 1 Probe deskew 10 H R Harmonics 27 Ripple 31 DPO3PWR and DPO4PWR Power Analysis Modules User Manual 41
12. easurement Gating lets you define where on the waveform the oscilloscope is taking the measurement Measurements include Value Description Measurements on the voltage waveform Vnus The voltage root mean square The Vans value is calculated across all complete cycles The unit of measure is volts V V Crest Factor The peak to RMS ratio for the voltage signal The Vcrest Factor indirectly specifies the purity of the AC supply The Voces Factor voltage waveform max Vnus It is expressed as a ratio For example the Vcrest Factor is 1 414 for a pure sine wave and 1 0 for a 50 duty cycle square wave Frequency The frequency is measured on the frequency source The unit of measure is hertz Hz DPO3PWR and DPO4PWR Power Analysis Modules User Manual 19 Measuring Power Quality 20 Measurements on the current waveform laus The current root mean square The laus value is calculated across all complete cycles The unit of measure is amps crest Factor The peak to RMS ratio for the current signal It indirectly specifies the ability of the load to draw high AC peak currents Current Crest Factor current waveform max Irus It is expressed as a ratio For example it is 1 414 for a pure sine wave and 1 0 for a 50 duty cycle square wave Measurements on the power math waveform True Real This is the true power It is the actual power delivered to the resistive part of the load and
13. es Oscilloscopes User Manual DPO3PWR and DPO4PWR Power Analysis Modules User Manual 9 Deskewing Probes Deskewing Probes Run the deskew procedure to match the delays through the probes Different probes introduce different delays between the probe tip and the oscilloscope Many oscilloscope users do not have to worry about this because they use the same type of probe on all channels Power measurement users however frequently use both a voltage probe and a current probe A current probe typically has a larger delay than a voltage probe so setting deskew values becomes important Using a Deskew Fixture The following sample procedure assumes use of the deskew procedure built into the Power Analysis module the Tektronix MSO4000 or DPO4000 Series Oscilloscope the TCP0030 Current Probe the P5205 Differential Probe the TPA BNC Adapter the TEK DPG Deskew Pulse Generator and 067 1686 XX Power Measurement Deskew amp Calibration Fixture Adjust this procedure as needed if you use different equipment NOTE For best results warm up the equipment for 20 minutes before making critical adjustments 10 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Deskewing Probes 1 Connect the TPA BNC Adapter to channel 1 2 Connect the voltage probe to the TPA BNC Adapter 3 Connect the current probe to channel 2 4 Connect the TEK DPG to AUX IN Push the button on the TEK DPG marked Output Enable so that the light marked Sta
14. he selected region of the acquisition the entire waveform by default and the statistics of those measurements are accumulated across the acquisition but not between acquisitions 26 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Measuring Harmonics Measuring Harmonics Use the Harmonics menu functions to display the frequency spectrum of the source waveform and the associated measurement values and perform in depth troubleshooting of power quality problems Select Harmonics to bring up the Harmonics menu The oscilloscope will display the frequency spectrum of the source waveform and the associated measurement values i SU T 7 First 10 harmonics shown graphically First 10 harmonics shown textually DPO3PWR and DPO4PWR Power Analysis Modules User Manual 27 Measuring Harmonics The figure to the right shows a sample instrument setup for measuring harmonics TCP0030 3 Switch 2 mode power P1 1 supply Neutral m WARNING To prevent electrical shock always verify that the probe reference point is at ground potential before connecting the probe ground reference lead To Measure Harmonics Follow These Steps 1 Select the Harmonics feature from the side menu See page 7 Getting Started 28 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Measuring Harmonics 2 Push Define Inputs to identify
15. horizontal position and scale controls as needed Then press the Deskew button on the side menu and rotate multipurpose knob b IE EL m9 eu zi This shows a sample waveform prior to deskew This shows a sample waveform after deskew NOTE For more information on use of the deskew and calibration fixture refer to the 067 1686 00 Power Measurement Deskew amp Calibration Fixture Instructions It is available for download from www tektronix com manuals 14 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Deskewing Probes Not Using a Deskew Fixture If you do not have a deskew fixture you can use the controls in the Deskew menu to set the oscilloscope s deskew parameters to recommended values based on the normal propagation delay of each probe Even if you are using a deskew fixture the deskew menu controls can help you by getting the deskew values close to correct You can then fine tune the values with the help of the deskew fixture The oscilloscope automatically loads the nominal propagation delay values of TekVPI and TekProbe II requires use of a TPA BNC adapter probes For other common probes first push the side bezel Select button and select the channel to which the probe is attached Then push the side bezel Probe Model button and select the probe model If your probe is not in the list set the probe model to Other and push the side bezel Propagation Delay button and dial in its propagation delay with mult
16. ipurpose knob a To set the deskew value of each channel to the recommended value push the side bezel Set all deskews to recommended value button DPO3PWR and DPO4PWR Power Analysis Modules User Manual 15 Deskewing Probes 16 If you need to further adjust the selected waveforms on the screen press the Deskew button on the side menu and rotate multipurpose knob b Press Set all deskews to recommended values from the side menu Observe the screen The oscilloscope will calculate and set the proper deskew values automatically for known probes The oscilloscope will automatically recognize many Tektronix probes If your probe is not on the list select Other and manually input the propagation value as shown below The oscilloscope will fill in the default values for recognized probes You can manually input a value for an unrecognized probe by pressing this side button and turning multipurpose knob a Deskew Select a 1 Deskew b 0 00 S Show rec deskews Yes No Set all deskews to recom mended values Probe Model Propaga tion Delay a 0 00 S DPO3PWR and DPO4PWR Power Analysis Modules User Manual Measuring Power Quality Measuring Power Quality Use the power quality functions to view a table of measurement and statistics to check the general power quality in your test circuit TCP0030 2631 012
17. l loss Typically use these functions to characterize losses in power supply switching devices as they switch on and off Switching loss operations require the use of a voltage and a current probe WARNING To prevent electrical shock always verify that the probe reference point is at ground potential before connecting the probe ground reference lead 22 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Measuring Switching Loss OUUUUUU EN C c SD ens TPA BNC TCP0030 Sample switching loss screen shot Sample switching loss instrument setup DPO3PWR and DPO4PWR Power Analysis Modules User Manual 23 Measuring Switching Loss To Measure Switching Loss Follow These Steps 1 Select the Switching Loss feature from the side menu See page 7 Getting Started 2 Push Define Inputs to select which channels Application Analysis Define Reference LO Meas More t Level Iculati ispla to measure For these measurements you opin a mS peo spay need to select a channel pair Typically channel 1 is used as a voltage source and channel 2 as a current source 3 Press Reference Levels to choose how to make the switching loss measurements 4 Press Conduction Calculation to set the method for calculating the conduction loss 24 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Measuring Switching Los
18. nt 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 2631 017 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 and DPO4PWR Power Analysis Modules User Manual 7 Getting Started 3 Push Default Setup to put the oscilloscope in a known state Default Setup 1785 032 4 Push channel 2 to activate that channel 2 2631 015 5 Push Autoset D 8 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Getting Started 6 Push Test CG Ses Test oo o C OSOE g9o929099 BO oo008 d el Jiel o 2631 014 7 Push Analysis Application Analysis 8 Use the side bezel buttons to select the desired analysis function Choose among power quality switching loss harmonics ripple modulation safe operating area and deskew For further information on general set up of the oscilloscope refer to the MSO4000 and DPO4000 Series Oscilloscopes User Manual or the DPO3000 Seri
19. ot 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 DPO3PWR 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
20. pment such as the following to make your power measurements MS04000 or DPO4000 Series oscilloscope with firmware version 2 17 or higher and the DPO4PWR application module installed DPO3000 Series oscilloscope with firmware version 1 10 or higher and the DPO3PWR application module installed Differential probe such as the TDP0500 TDP1000 or P5205 TPA BNC Probe Adapter Current probe such as the TCP0030 or TCP0150 TEK DPG Deskew Pulse Generator 067 1686 XX Power Measurement Deskew and Calibration Fixture DPO3PWR and DPO4PWR Power Analysis Modules User Manual 1 Installing the Application Module Ratings DPO3000 Series MSO4000 and DPO4000 Series TDP0500 probe P5205 probe TPA BNC adapter TCP0030 probe TCP0150 probe Channels 1 4 1 MQ 300 Vrms maximum CAT II or 50 Q 5 Vrms maximum CAT I or 75 Q 5 Vrms maximum CAT Aux Input 300 Vrms maximum CAT II Channels 1 4 1 MQ 250 Vans maximum CAT 1 or 50 Q 5 Vays maximum CAT I Voltage probe Rated 30 Vrms 42 Voc Peak AC maximum Voltage probe Rated 1000 Vrms maximum CAT II Probe adapter Rated 30 Vams 42 Ve or 60 Voc maximum Current probe Rated for insulated wire only wire insulation must be rated for the voltage present 30 Arms maximum Current probe Rated 600 Vays 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
21. s The Voltage Waveform method measures the voltage drop across the switching device during conduction Because this voltage is typically very small compared with the voltage across the switching device when it is not conducting you generally cannot measure both voltages accurately at the same vertical setting of the oscilloscope In that case consider using one of the following approaches for more accurate results The RDS on approach is the best model for MOSFETs and is based on information from the device data sheet This value is the expected on resistance between the drain and the source of the device when it is conducting The VCE sat approach is the best model for BJTs and IGBTs and is based on information from the device data sheet It is the expected saturation voltage from the collector to the emitter of the device when it is saturated 5 Press Meas Display to set which of the available switching loss measurements to display The choices are Power Loss Energy Loss or All both Power and Energy Loss DPO3PWR and DPO4PWR Power Analysis Modules User Manual 25 Measuring Switching Loss 6 Press More to define Statistics Gating and Indicators Indicators graphically show where on the waveform the oscilloscope is taking the measurement Gating lets you define where on the waveform the oscilloscope is taking the measurement NOTE Switching loss measurements are made on each individual complete cycle within t
22. tektronix com manuals NOTE When making mains CAT II measurements with the MSO4000 and DPO4000 Series oscilloscopes use an attenuating probe properly rated for CAT Il measurements Over voltage categories are defined as follows CAT Il Local level mains appliances portable equipment CAT I Signal level special equipment or parts of equipment telecommunications electronics DPO3PWR and DPO4PWR Power Analysis Modules User Manual Installing the Application Module Inserting the Application Module Key To installa DPO4PWR or DPO3PWR 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 Use an ESD strap 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 2631 007 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Installing the Application Module button Wait until the display appears 3 Power on the oscilloscope by pressing the on OOUCOUCOCUJQJ cC T 5 CQ om eE3ES 2631 047 4 Press the front panel Utility button 5 Press the bottom bezel About button Verify that the oscilloscope reports detects a copy of the DPO4PWR or DPO3PWR Power Analysis applic
23. 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 W WARNING indicates an injury hazard not immediately accessible as you read the marking W CAUTION indicates a hazard to property including the product DPO3PWR and DPO4PWR Power Analysis Modules User Manual V General Safety Summary The following symbol s may appear on the product B O Doubl insulated Earth Terminal Mains Disconnected Mains Connected OFF Power ON Power vi DPO3PWR and DPO4PWR Power Analysis Modules User Manual Preface Preface This manual describes operation of the DPO4PWR and DPO3PWR 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 MSO4000 and DPO4000 Series oscilloscopes The DPO3PWR module works in DPO3000 Series oscilloscopes Specific analysis types include Power Quality Switching Loss Harmonics Ripple Modulation Safe Operating Area Slew rate DPO3PWR and DPO4PWR Power Analysis Modules User Manual vii Preface viii DPO3PWR and DPO4PWR Power Analysis Modules User Manual Installing the Application Module Installing the Application Module Gathering Equipment Use appropriate equi
24. tus LED turns green Push the button labeled Mode as many times as needed to select the desired signal 2631 010 5 Push the oscilloscope front panel 1 and 2 buttons if needed to be sure it displays the waveforms for both channels 6 Push the range menu button on the current probe body to set the range values as desired DPO3PWR and DPO4PWR Power Analysis Modules User Manual 11 Deskewing Probes 7 Connect the TEK DPG s BNC connector to Port A on the deskew fixture as shown at the right 8 Connect the TCP0030 probe to the deskew fixture as shown at the right Make sure to align the polarity arrows on the current probe and the fixture Make sure to close and lock the current probe slider 9 Connect the P5205 probe tip and ground lead to the pins on the deskew fixture as shown at the right xfuloI aI 2631 013 12 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Deskewing Probes 10 Push Default Setup 11 Push the 2 button to activate channel 2 12 Push Autoset 13 Push Test Test 2631 014 14 Push Analysis Application Analysis 15 Use the side bezel buttons to select the function labeled Deskew DPO3PWR and DPO4PWR Power Analysis Modules User Manual 13 Deskewing Probes 16 Push Configure Application Analysis Power 17 Adjust the selected waveforms with the vertical and
25. y displays voltage and they LU axis displays current MUI 6066602060 36 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Measuring Safe Operating Area 4 Push Define Mask to define the safe operating area within the grid Use the side menu Set Limits choice for simpler four point masks You need to input the maximum voltage maximum current and maximum power to set a mask with this method Use the side menu Set Points to define a more complex mask with up to 10 points each of which you can define 5 Push Action on Violation to select whether or not to stop acquisitions on the detection of an error 6 Push Gating to define where in time to measure the safe operating area DPO3PWR and DPO4PWR Power Analysis Modules User Manual 37 Making dl dt and dV dt Measurements Making dl dt and dV dt Measurements Use the cursor readouts to measure the slope rate of change of signals 103 000ns 9 80 V 101 000ns 25 4 V A204 000ns A15 6 V dv dt 76 5MV s D 3 oogggdogp cN Oo oD oG 74 C TCP0030 p jut PN V Y ee eae oe O nee S n Sample dV dt readout Sample d dt instrument set up 38 DPO3PWR and DPO4PWR Power Analysis Modules User Manual Making dl dt and dV dt Measurements WARNING To prevent electrical shock always verify that the probe reference point is at ground potential before connecting the prob
Download Pdf Manuals
Related Search