Title :
A pliable and batteryless real-time ECG monitoring system-in-a-patch
Author :
Wu, C.-C. ; Kuo, W.-C. ; Wang, H.-J. ; Huang, Y.-C. ; Chen, Y.-H. ; Chou, Y.-Y. ; Yu, S.-A. ; Lu, S.-S.
Author_Institution :
Grad. Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A batteryless wearable ECG monitoring system-in-a-patch assembled by a biocompatible and pliable silicon-in-parylene technology is introduced. The system is capable of processing the acquired ECG signal and detecting arrhythmia by a built-in digital signal processor (DSP). An NFC communication system is used to interface the external reader. The silicon also integrates a sub-threshold ultra-low-voltage (ULV) boost converter to harvest body heat energy from a thermoelectric generator (TEG) attached to the chest to power up the ECG system. The boost converter operates with no external kick-off circuitry, and the average efficiency is up to 60%. The assembled all-in-one system achieves a very low profile (<;0.9mm); it includes one CMOS die, two SMD inductors (for the boost converter), and two in-parylene gold coils (for the NFC communication system). The pliable parylene mold provides excellent adhesion and skin comfort.
Keywords :
CMOS integrated circuits; biomedical communication; biomedical electronics; digital signal processing chips; electrocardiography; elemental semiconductors; gold; medical disorders; medical signal detection; medical signal processing; near-field communication; patient monitoring; polymers; power convertors; real-time systems; silicon; thermoelectric conversion; CMOS die; DSP; ECG signal processing; NFC communication system; SMD inductors; Si; TEG; adhesion; arrhythmia detection; biocompatible pliable silicon-in-parylene technology; body heat energy; built-in digital signal processor; chest; electrocardiography; in-parylene gold coils; near-field communication; pliable batteryless real-time ECG monitoring system-in-a-patch; skin comfort; subthreshold ultra-low-voltage boost converter; thermoelectric generator; CMOS integrated circuits; Clocks; Coils; Electrocardiography; Gold; Monitoring; Program processors;
Conference_Titel :
VLSI Design, Automation and Test (VLSI-DAT), 2015 International Symposium on
Conference_Location :
Hsinchu
DOI :
10.1109/VLSI-DAT.2015.7114521
