Agilent 6800 - Manuals

6 In ATE applications, triggers are often a conven-ient way of synchronizing test system events andincreasing test throughput. These benefits alsoapply to the triggering subsystems in the 6800series products since these products combine thecapabilities of many test instruments. Each modelis equipped...

8 The built-in power analyzer capability offers manyvoltage, current, and power measurements to theuser. While on, the ac power source/analyzers arecontinuously sampling instantaneous output volt-age and current for several output cycles and writ-ing the data to buffers. Each buffer, one for voltage...

9 How Can the Acquisition of Voltage and CurrentData be Controlled? Two characteristics of the voltage and currentacquisition can be controlled: the sample rate, and the beginning of acquisition relative to thetrigger. The ac power source/analyzer has a samplerate of approximately 40 kHz (a sample e...

10 The following section contains six applicationexamples. For each application, there is: • An overview of the application• A description of the Agilent 6800 series features used to implement the application • The advantages and benefits of the 6800 series solution • The details of the implementati...

11 Overview of application The ability of a switching power supply to main-tain its output voltage setting in the presence oftypical ac line disturbances is critical to its end-use. If the end-use of the power supply is installa-tion into a computer, for example, sensitivity to ac line variations ca...

12 Upon the receipt of the trigger, the ac source continues to output a 120 Vrms, 60 Hz sinewave for 5 seconds. After the 5-second trigger delay, the rms voltage drops to 0 Vrms at 80° of the cycle and then rises back to 120 Vrms (0.001389seconds later) at 110° of the cycle. Variations on this imple...

18 Overview of application IEC 555-2 (1982) is a regulatory standard that pertains to ac line disturbances, namely currentharmonics. These current harmonics are caused byconnecting household appliances and similar elec-trical equipment to a 230 V, 50 Hz ac mains. Thisstandard establishes limits on t...

22 Agilent 6800 series setup • Set the initial (immediate) voltage to 0 Vrms.• Set the triggered voltage level to 120 Vrms.• Set the frequency to 60 Hz.• Set the peak current limit to maximum.• Set the transient trigger source to BUS.• Set the trigger synchronization source to Phase.• Set the initia...

24 Overview of application The creation of user-defined waveforms is usefulfor simulating ac line disturbances that are uniqueto the operational environment of the device beingtested, and then measuring that device’s suscepti-bility to the disturbance. This is the fundamentalobjective of environment...

25 Agilent 6800 series setup • Connect the ac source output to the ac input of the equipment under test. • Use the computer to develop a 1024 point array representing a cycle of voltage amplitude data. • Use the TRACe:DEFine command to name the waveform CLASS 1 and allocate non-volatilestorage space...