Title :
Design of Dynamic Power Management for System on Chip in batteryless TPMS
Author :
Song, Xuze ; Wu, Liji ; Jia, Chen ; Zhang, Xiangmin
Author_Institution :
Tsinghua Nat. Lab. for Inf. Sci. & Technol., Tsinghua Univ., Beijing, China
Abstract :
Dynamic Power Management (DPM) is a technique to reduce the power consumption of an electronic system by selectively shutting down idle components. In this paper, a DPM methodology is proposed for managing the power consumption of System on Chip (SoC) in batteryless TPMS. The main circuit adopts three power regulators to supply the IP cores (CMOS Temperature Sensor + A/D + MCU + 433MHz Data Transmitter) working voltages which are supervised and compared with reference voltage by comparators. Then the three parts are daisy-chain-connected to manage the power sequence. The power consumption is 474μW to 825μW by simulation.
Keywords :
CMOS integrated circuits; automotive components; automotive electronics; power consumption; pressure; system-on-chip; temperature sensors; tyres; CMOS temperature sensor; DPM methodology; IP core; batteryless TPMS; comparator; daisy-chain-connected; data transmitter; dynamic power management; electronic system; power 474 muW; power 825 muW; power consumption; power regulator; power sequence; system on chip; tire pressure monitoring system; Battery management systems; Circuits; Energy consumption; Energy management; Power supplies; Power system management; Regulators; System-on-a-chip; Temperature sensors; Voltage; Comparator; Power Management; Power Regulator; SoC;
Conference_Titel :
Wireless and Optical Communications Conference (WOCC), 2010 19th Annual
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7597-1
DOI :
10.1109/WOCC.2010.5510653
