Optimizing Regulator Output Capacitance (Part 3): Analyzing Load Slammer Results
by David Baretich, ProGrAnalog, Portland, Oreg., How2Power Today, Oct 15 2018
Focus:
This third and final installment in this series presents scope plots of actual tests
using a load slammer, along with commentary on what those waveforms can tell us. After
describing the voltage regulator being used in the examples, the article demonstrates
measurements of the regulator’s full step and release response, response at reduced
slew rate, and output ringing. The analysis of these measurements should help to
illustrate the benefits of load slammers. This article concludes by explaining how
slammers can help to address capacitor sourcing challenges and their value in
supporting reuse of voltage regulator designs.
What you’ll learn:
- How to interpret load slammer tests of dc-dc converter transient response
- How to optimize dc-dc converter design using load slammers
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