@inproceedings{d2029927129b4c288b81b0b6ab989baf,
title = "Internal circuit offset auto compensation current sensor for wireless power systems",
abstract = "This paper, we implemented a method to compensate the internal offset in the instrumentation amplifier structure. The proposed current sensor is used in a wireless power transmitter where the input voltage is changed. In order to lower the input voltage, resistor dividing is performed at the input terminal of the amplifier. When a voltage offset occurs in the circuit using this input voltage, the closed-loop circuit is changed to the open-loop and the open-loop output is confirmed in the calibration circuit to compensate the voltage offset generated in the circuit. We implemented the current sensor within +5 \% error rate of the output occurring in the amplifier and resistor. The current sensor is designed with a 180 nm BCD process and it converts 0 ∼ 1.8 V voltage output by sensing 0 ∼ 3 A current.",
keywords = "Auto calibration, Gain-error, Instrumentation amplifier, Open-loop, Voltage offset",
author = "Jang, \{Byeong Gi\} and Oh, \{Seong Jin\} and Park, \{Young Jun\} and Lee, \{Kang Yoon\}",
note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 14th International SoC Design Conference, ISOCC 2017 ; Conference date: 05-11-2017 Through 08-11-2017",
year = "2018",
month = may,
day = "29",
doi = "10.1109/ISOCC.2017.8368847",
language = "English",
series = "Proceedings - International SoC Design Conference 2017, ISOCC 2017",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "176--177",
booktitle = "Proceedings - International SoC Design Conference 2017, ISOCC 2017",
}