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Aspencore Media GmbH Copyright. All rights reserved.
Frankfurter Straße 211 No part of this publication may be Electrochemical Impedance Spectroscopy (EIS) for
63263 Neu-Isenburg / Germany reproduced in any form or by any Batteries
This circuit note describes an electrochemical impedance
means without the prior express spectroscopy (EIS) measurement system for characteriz-
ing lithium ion (Li-Ion) and other types of batteries. EIS is
written permission of ICC Media. a safe perturbation technique used to examine processes
occurring inside electrochemical systems.
Editorial Contact Although we make every effort to Power saving methods for LTE-M and NB-IoT
Maurizio Di Paolo Emilio present up-to-date, accurate infor- LTE-M and NB-IoT require long battery lifetime to ensure
maurizio.dipaolo@aspencore.com mation, Power Electronics News will IoT services and minimize maintenance costs in the
future. This technical white paper describes the possible
not be responsible for any errors or power saving methods that can be applied to LTE-M and
NB-IoT devices.
Barbara Della Porta
Barbara.Dellaporta@aspencore.com omissions or for any results obtained GaN and SiC, Devices and Technology – Download our
eBook
from the use of such information. Improved energy efficiency and growing demand for
Lori O'Toole longer battery life are prompting the power electronics
community to take yet another hard look at the tradeoffs
lotoole@aspencore.com The digital magazine will not be liable presented by wide-bandgap semiconductor technology
for any loss caused by the reliance operating at higher voltages, temperatures, and fre-
quencies.
on information obtained on this site.
For Reader Inquiries please contact: Can You Really Get ppm Accuracies from Op Amps?
Commercially available ppm-accurate amplifiers are
info@powerelectronicsnews.com Furthermore, Power Electronics News difficult, if not impossible, to find. This article presents
op amp accuracy limitations and how to choose the few
does not warrant the accuracy or op amps that have a chance of 1 ppm accuracy. It will
completeness of the information, text, also discuss a few application improvements to existing
op amp limitations.
Contact for Advertising graphics in this digital magazine. The
Laurie McElroy opinions expressed in the articles are The Power Electronics
Sales Director, those of the authors and not neces- News & Know-how
laurie.mcelroy@aspencore.com. sarily the opinions of the publisher.
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