高精度过电流检测高侧开关

Ana-Maria Luca, I.-A. Tranca, A. Danchiv
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引用次数: 3

摘要

本文介绍了一种集成在高压电源开关中的精密过流保护功能。精度的提高是基于使用一个低偏移,自动归零放大器,为功率和感测晶体管提供相同的偏置条件。
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High precision over current detection for a high side switch
This paper presents a precision over current protective function integrated in a high side power switch. The accuracy improvement is based on using a low offset, autozero amplifier for providing the same bias conditions for both the power and the sense transistors.
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