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IP Library

홈 | MPW / CDC | IP Library

"한국 반도체산업의 경쟁력"

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IP명 A wireless power receiver with energy backup and bidirectional telemetry for implantable devices
Category Analog Application smart lens
실설계면적 5㎛ X 5㎛ 공급 전압 4.8V
IP유형 Hard IP 동작속도 13.56MHz
검증단계 Silicon 참여공정 HM-1903
IP개요 Wireless sensing systems have been an essential
technique in a broad scope of applications, especially in biomedical
circuits and IoT systems. This paper proposed a wireless power
receiver with energy backup and low-power back telemetry for
implantable devices such as smart lens. The proposed low-power
system adaptively controls its operation mode, either power backup
or wireless sensing, to operate with a limited amount of wireless
power. We also propose an offset-control function in the comparator
to compensate for both turn-on and turn-off delays, improving the
power efficiency. In addition, the system adopts low-power back
telemetry circuit with current reuse technique, which induces
instantaneous current changes for load modulation, while reused the
current to supply the system, improving overall system efficiency.
The proposed system will be fabricated in a TSMC 180nm standard
CMOS process with 1.8V/5V supply voltage and operate at
13.56MHz carrier frequency.
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