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Agilent 6800 Series
AC Power Source/Analyzer
Product Note
Using the Agilent Technologies 6800 Series
AC Power Source/Analyzers for Generation
and Measurement
Applications:
• Simulating AC Line Sub-Cycle Dropouts
• Generating MIL-STD-704D Waveforms
• Performing IEC 555-2 Measurements
• Performing Inrush Current Measurements
• Generating User-Defined Waveforms
• Operating the Agilent 6812A and 6813A
at Low Frequencies
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Table of Contents
Related Manuals for Agilent Technologies 6800 Series
Summary of Contents for Agilent Technologies 6800 Series
- Page 1 Agilent 6800 Series AC Power Source/Analyzer Product Note Using the Agilent Technologies 6800 Series AC Power Source/Analyzers for Generation and Measurement Applications: • Simulating AC Line Sub-Cycle Dropouts • Generating MIL-STD-704D Waveforms • Performing IEC 555-2 Measurements • Performing Inrush Current Measurements •...
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Page 2: Table Of Contents
Introduction This note provides information on how you can use the features of the Agilent Technologies 6800 series ac power source/analyzers to address a variety of applications. Although your exact appli- cation may not be listed here, the capabilities described can be generalized and applied to your specific needs. -
Page 3: Introduction To The Agilent 6800 Ac Power Source/Analyzer
• triggered acquisition of digitized voltage and • harmonic analyzer current • waveform digitizer The 6800 series can be used in bench or ATE appli- The power amplifier and arbitrary waveform cations. The fully featured front panel and built-in generator capabilities produce waveforms with... -
Page 4: Agilent 6800 Series Output Transients
• ac output voltage Agilent’s 6800 series List points can be paced by • dc output voltage (Agilent 6812A and 6813A only) external triggers. When paced by triggers, the out- •... - Page 5 Model of the Transient System...
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Page 6: Agilent 6800 Series Triggering
External Trigger In. This is the 6800 series TRIGGER Triggers can be used to change the output, syn- IN connector. It accepts TTL levels, with the falling chronize a change to a phase of a waveform cycle, edge detected as the trigger. - Page 7 Output Transient Trigger Model Measurement Trigger Model...
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Page 8: Agilent 6800 Series Measurements
What is a MEASure Command? triggering an acquisition of digitized voltage and When this command is sent to the 6800 series current data. This method provides the flexibility ac power source/analyzer, the unit begins acquir-... - Page 9 How Can the Acquisition of Voltage and Current The acquisition of voltage and current data can also be initiated relative to the acquisition trigger, Data be Controlled? thereby enabling the capture of pre-event and Two characteristics of the voltage and current post-event data.
- Page 10 GPIB interface card • An overview of the application • A description of variations on the application • A description of the Agilent 6800 series features (if applicable) used to implement the application • The advantages and benefits of the 6800 series...
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Page 11: Application 1: Simulating Ac Line Sub-Cycle Dropouts
Overview of application Implementation details The ability of a switching power supply to main- How the 6800 series implements the dropout tain its output voltage setting in the presence of The computer sends a trigger to the ac power typical ac line disturbances is critical to its end- source/analyzer with a programmable delay of use. - Page 12 Upon the receipt of the trigger, the ac source 3. The triggered level of the rms voltage can be set continues to output a 120 Vrms, 60 Hz sinewave higher than the initial setting of 120 Vrms to for 5 seconds. After the 5-second trigger delay, simulate a voltage surge.
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Page 14: Application 2: Generating Mil-Std-704D Waveforms
• the equipment must automatically recover full specified performance when normal ac power Implementation details characteristics are restored How the 6800 series implements MIL-STD-704D RMS voltage and frequency transients For this example, the equipment under test has The computer sets up List sequence, then ac power a single phase ac input with 115 Vrms and 400 Hz source/analyzer is sent a bus trigger. - Page 15 Agilent 6800 series setup (continued) • Set the transient trigger source to BUS. • Set the List points as follows: • Initiate the transient trigger. • Enable the output of the ac power source/ List Vrms Dwell analyzer. Point Vrms...
- Page 16 List Timing Diagram for Application 2...
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Page 18: Application 3: Performing Iec 555-2 Measurements
The generated current harmonics can vary • The 6800 series provides an IEC 555 compliant or fluctuate with time (due to electronic products Rectangular measurement window built into the that cycle the ac line), or can have steadystate standard unit. - Page 19 Agilent 6800 series setup Using the computer: • Read the harmonic current array into the • The ac source output is connected to the ac input of the equipment under test. computer. • Set the output waveform to sine. • Compare the measured harmonic current ampli- tudes of harmonic numbers 2 through 40 to the •...
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Page 21: Application 4: Performing Inrush Current Measurements
Switch mode power supplies are commonly used solution in many electronic products. These power supplies The 6800 series provides a “One-Box” Solution for typically have input capacitors that cause high measurement and waveform generation and elimi- levels of peak inrush current to be drawn as they nates the worry of synchronizing separate instru- charge from the rectified line at turn-on. - Page 22 Agilent 6800 series setup Upon receipt of the trigger, the ac power source/ analyzer output goes to 120 Vrms when the phase • Set the initial (immediate) voltage to 0 Vrms. voltage waveform reaches 40°. The data buffer • Set the triggered voltage level to 120 Vrms.
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Page 24: Application 5: Generating User-Defined Waveforms
FUNCtion:SHAPe command is valid. Implementation details Harmonic Voltage Levels (for 120 Vrms) How the 6800 series implements user-defined waveforms Harmonic Number Class 1 Class 2 The computer is used to generate an array of 1024 voltage amplitude points that represent one 9.6 V... - Page 25 Agilent 6800 series setup • Set the List to sequence automatically. • Connect the ac source output to the ac input of • Set the transient trigger source to BUS. the equipment under test. • Initiate the transient trigger. • Enable the output.
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Page 28: Application 6: Operating The Agilent 6812A And 6813A
For this example, Agilent 6800 series setup the equipment under test will require an ac input • Connect the ac source output to the ac input at 230 Vrms and 16.6 Hz. Real power, apparent of the equipment under test. - Page 30 By internet, phone, or fax, get assistance with all your Support, Services, and Assistance test and measurement needs. Agilent Technologies aims to maximize the value you receive, Online Assistance while minimizing your risk and problems. We strive to ensure www.agilent.com/find/assist that you get the test and measurement capabilities you paid for and obtain the support you need.