A battery-less Tire Pressure Monitoring System (TPMS) prototype based on inductive coupling is presented in this paper. A special power recovery circuit is designed and implemented in 0.35µm 14V HVCMOS takes place of battery as power supply. The power is delivered by a 2.25W@13.56MHz transmitter and transferred over 65cm to achieve DC voltage at 3V with intermittent current of 10mA as power supply for a widely used commercial TPMS System on Chip which is composed of pressure sensor, temperature sensor, A/D and MCU. The power receiver is put in tire so that the influence of wheel hub could be considered. The battery-less TPMS is verified to be feasible.


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    Title :

    A Battery-less Tire Pressure Monitoring System


    Contributors:
    Wu, Liji (author) / Zhang, Xiangmin (author) / Yu, Xiao (author) / Ding, Xuyang (author) / Chi, Chaojun (author)


    Publication date :

    2012-12-01


    Size :

    525748 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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