采用斩波稳定放大器的16串联锂离子电池高压电压传感器

2017 International SoC Design Conference (ISOCC) Pub Date : 2017-11-01 DOI:10.1109/ISOCC.2017.8368849

Tzung-Je Lee, Guan-Jhang Li

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引用次数: 0

摘要

本文提出了一种适用于16串联锂离子电池的高压电压传感器。为了实现低偏置和低噪声，在OPA设计中采用了斩波稳定技术。另外，采用9个电阻网络，避免了16串电池单体的高压信号造成的高压危害。提出的设计采用典型的0.25 um 1P3M 60V BCD工艺实现。基于HSPICE仿真结果，避免了高压信号引起的栅极氧化物过应力。检测误差仅为0.404 mV。

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HV voltage sensor for 16 series li-ion battery cells using chopper stabilized amplifier

This paper proposes a HV voltage sensor for the 16 series Li-ion battery cells. In order to achieve low offset and low noise, the chopper stabilized technique is used for the OPA design. Besides, 9 resistor networks are employed to avoid the HV hazard caused by the HV signal of the 16 series battery cells. The proposed design is implemented using a typical 0.25 um 1P3M 60V BCD process. Based on HSPICE simulation results, the gate oxide overstress caused by the HV signal is avoided. Moreover, the detection error is only 0.404 mV.

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2017 International SoC Design Conference (ISOCC)

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