Tektronix AFG31000 Double Pulse Application User's Manual Primary User
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500 Beaverton, OR 97077
USA
Introduction
AFG31000 Double Pulse Application
This manual describes the Double Pulse application for use with your Tektronix
AFG31000 Series Arbitrary Function Generator.
The Double Pulse application is a downloadable application. This application is used to
measure switching parameters and evaluate dynamic behaviors of power devices.
Function generators are typically unable to independently control pulse width, and it
can be difficult to adjust pulse width while working. The Double Pulse application
allows you to run double pulse tests using a function generator, combing the
functionality of the function generator with a double-pulse tester.
The application allows you to measure the following switching parameters:
• Turn-on parameters: Turn-on delay (t
and di/dt. Energy loss is then determined.
• Turn-off parameters: Turn-off delay (t
and di/dt. Energy loss is then determined.
• Reverse recovery parameters: Reverse recovery time (t
current (I
forward on voltage (V
By running a double-pulse test, you can:
• Guarantee the specifications of power device datasheets
• Confirm actual value or deviation of power devices or power modules
• Measure switching parameters with current value conditions and other devices.
Installing the application
Directions for installing applications onto your instrument using a USB flash drive are in
the AFG31000 User's Manual (0771473XX).
), rise time (tr), turn-on time (ton), Eon, dv/dt,
d(on)
), fall time (tr), turn-off time (t
d(off)
), reverse recovery
rr
), reverse recovery charge (Qrr), reverse recovery energy (Err), di/dt, and
rr
).
sd
off
), E
, dv/dt,
off
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Copyright © Tektronix
*P071348200*
077163100
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Application specifications
Below are the specifications for the Double Pulse application:
Pulse number: 2 to 30 pulses. The number of pulses that the application generates.
High/low level:
• Minimum: -5 V
• Maximum: +5 V
Pulse width:
• Minimum: 20 ns
• Maximum: 150 µs
• Resolution: 1 ns
Trigger: Manual, External, and Timer
Load impedance: 50 Ω and High Z
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The following topics explain how to open, navigate, and run tests using the Double
Pulse application.
Opening the application
After installing the Double Pulse application, an icon for the application will show on
your AFG31000 home screen directly below the Basic and Advanced buttons. After
selecting the DoublePulse icon, the application opens.
Figure 1: AFG31K homescreen
NOTE.
If the application does not appear, see the AFG31000 Users Manual
(0771473XX) for information.
2 AFG31000 Double Pulse Application
Setting up a double pulse
After opening the Double Pulse application, you can set up your double-pulse test. The
following figure shows the Double Pulse test screen. Here you can set the:
• Number of Pulses (N): 2 to 30 pulses
• High and Low voltage
• Trigger Delay
• Trigger Source: Manual, External, or Timer
• Load: 50 Ω or High Z
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Figure 2: Double Pulse application screen
When you are finished with your setup, select Run to start your test. Select Stop to
end the test.
NOTE.
Selecting Close does not reset your application settings. Selecting Default
restores the default settings.
AFG31000 Double Pulse Application 3
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Saving and retrieving your data
The Double Pulse application allows you to save and open tests on both the internal
memory of the AFG31000 and with a USB flash drive.
To save your completed test information:
Select Save As on the Double Pulse application window.
1. Select either Memory, for internal memory, or USB as the save location.
2. Navigate to, or create, your folder on the right pane and select the folder.
Select OK.
NOTE.
The following figure shows the save window.
The Double Pulse application saves test files as .json and .tfwx files.
Figure 3: Save window
4 AFG31000 Double Pulse Application
To retrieve your previously saved data:
Select Open on the Double Pulse application window.
1. Select the location of your saved data on the left pane.
2. Navigate to the folder on the right pane and select the file.
3. Select OK.
The following figure shows the Load window.
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Figure 4: Load window
AFG31000 Double Pulse Application 5
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