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2018 | OriginalPaper | Chapter

3. Current Sensing Principles with Biasing Scheme

Author : Sri Navaneethakrishnan Easwaran

Published in: Current Sensing Techniques and Biasing Methods for Smart Power Drivers

Publisher: Springer International Publishing

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Abstract

State-of-the-art electronic circuits heavily utilize the information related to the amount of current being delivered to the load. In safety-critical automotive applications like the airbag squib drivers, it is critical to utilize this information in order to regulate the current that is delivered to the squib. To know about the current that is delivered, a current sensing technique is needed. A sense resistor is typically used to sense the amount of current being delivered to the load, or a senseFET is used in order to sense the amount of current being delivered to the load. In this chapter, the fundamentals of current sensing and how this sensing concept is used to limit the current are being reviewed.

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previous chapter State-of-the-Art Current Sensing, Biasing Schemes and Voltage References
next chapter High-Side Current Regulation and Energy Limitation
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Metadata
Title
Current Sensing Principles with Biasing Scheme
Author
Sri Navaneethakrishnan Easwaran
Copyright Year
2018
Book
Current Sensing Techniques and Biasing Methods for Smart Power Drivers

Print ISBN: 978-3-319-71981-8

Electronic ISBN: 978-3-319-71982-5

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-71982-5_3