Table of Contents
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In this section:
Introduction .............................................................................. 7-1
Equipment required .................................................................. 7-1
Device connections .................................................................. 7-2
Testing a buck converter .......................................................... 7-3
Introduction
This example application demonstrates how to use the DMM7510 to capture voltage and current
waveforms. In this application, you use both the digitize voltage and digitize current functions to
directly interact with the waveforms. The waveforms are acquired from a 5 V dc-to-dc voltage
step-down converter, or buck converter, through the front-panel touchscreen interface.
The touchscreen can be helpful in a variety of applications that involve transient signal analysis at a
1 megasample per second sampling rate. You can analyze signals from a microvolt to 1000 V up to
350 kHz, or a microamp to 10 A up to 100 kHz.
Equipment required
•
One DMM7510
•
A power supply
•
Buck controller evaluation board, such as the Texas Instruments LM25088MH-1/NOPB Current
Mode Non-Synchronous Buck Controller evaluation board
•
Four insulated cables with banana plugs
•
Resistors for a varying load application; the application shown here uses resistors from 3 Ω to 8 Ω
•
One computer set up for remote communication with the DMM7510
Capturing and analyzing waveforms
Section 7
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