Measuring Step Load Response


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Measuring Step Load Response
10106071031600 Measuring Step Load ResponseThere are several reasons for step load testing, only one of which is to assess the stability of control loop. Unlike a Bode plot, the assessment of stability via step load testing does not produce a quantitative phase margin result. However, there is a direct relationship between the ringing seen in a step load response and the phase margin of the control loop. A second reason for step load testing is to determine the power supply voltage excursions. For example, a critical requirement for high-speed devices, such as FPGAs and CPUs, is that the voltage at the device must remain within the manufacturer's allowable operating ra…
Citation
Steven M. Sandler: Power Integrity: Measuring, Optimizing, and Troubleshooting Power Related Parameters in Electronics Systems. Measuring Step Load Response, Chapter (McGraw-Hill Professional, 2014), AccessEngineering Export