A dynamic real-time capacitor compensated inductive coupling transceiver for wearable body sensor network
A dynamic real-time capacitor compensated inductive coupling transceiver for wearable body sensor network
复制标题
用于可穿戴人体传感器网络的动态实时电容补偿电感耦合收发器
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
H. Yoo
中科院分区：
文献类型：
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作者：
Seulki Lee;Jerald Yoo;Hyejung Kim;H. Yoo
针对低功耗可穿戴式电感耦合收发器，提出了一种实时电容补偿（RCC）方案。为了实时补偿参数的动态变化，电感值被监测，谐振频率被加性电容器调节。提出了用于电感变化检测的RLC桥和用于方差方向识别的双边采样比较器。所提出的收发器在0.18µm CMOS技术中仅消耗426.6µW （TRX为102.6µW， CDR为324µW）。补偿时间仅为4.78µs，其中最坏情况下检测时间为3µs，补偿时间为1.78µs。
A real-time capacitor compensation (RCC) scheme is proposed for low power wearable inductive coupling transceiver. To compensate for the dynamic parameter variations in real time, the inductance value is monitored and its resonance frequency is adjusted by additive capacitors. RLC bridge for detection of the inductance variations and the dual-edge sampling comparator for recognition of the variance direction are proposed. The proposed transceiver consumes only 426.6µW (102.6µW for TRX and 324µW for CDR) in a 0.18µm CMOS technology. And the compensation time takes only 4.78µs, including 3µs of detection and 1.78µs for compensation process in worst case.