Energy-recycling integrated 6.78-Mbps data 6.3-mW power telemetry over a single 13.56-MHz inductive link
Energy-recycling integrated 6.78-Mbps data 6.3-mW power telemetry over a single 13.56-MHz inductive link
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通过单个 13.56 MHz 感应链路实现能量回收集成 6.78 Mbps 数据 6.3 mW 功率遥测
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
G. Cauwenberghs
中科院分区：
文献类型：
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作者：
S. Ha;Chul Kim;Jongkil Park;Siddharth Joshi;G. Cauwenberghs
我们提出了一种新的数据调制方案，并通过一个单一的感应链路同时传输功率/数据遥测IC。数据驱动的次级LC谐振回路的同步单周期短路可节省无功功率，同时在初级侧引起瞬时电压变化。短路周期的循环开关键控时间编码符号映射允许每四个载波周期传输两个数据比特，同时在非短路周期期间进行功率传输。用于整流和数据传输的所有时序控制信号均由低功耗时钟恢复比较器和22相2× PLL产生。该1 mm 2 65 nm CMOS IC可提供高达6.3 mW的功率，并在单个1 cm 13.56 MHz感应链路上传输6.78 Mbps数据，BER小于5.9×10-7。
We present a power/data telemetry IC with a new data modulation scheme and simultaneous power transfer through a single inductive link. Data-driven synchronized single-cycle shorting of the secondary LC tank conserves reactive power while inducing an instantaneous voltage change at the primary side. Cyclic on-off keying time-encoded symbol mapping of the shorting cycle allows transmission of two data bits per four carrier cycles with simultaneous power transfer during non-shorting cycles. All timing control signals for rectification and data transmission are generated from a low-power clock recovery comparator and 22-phase 2× PLL. The 1-mm2 65-nm CMOS IC delivers up to 6.3-mW power and transmits 6.78-Mbps data with a BER of less than 5.9×10-7 over a single 1-cm 13.56-MHz inductive link.