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This paper presents a self-powered wireless temperature sensor powered with a micro piezoelectric energy harvester. The piezoelectric energy harvester is a cantilever beam design fabricated with metal-MEMS process on stainless steel substrates. The energy harvester is tuned to have resonant frequency around 120Hz and the bimorph version can generate more than 400µW power output when driven with vibration...
The fast electrical explosion of a single metal wire has important applications in m plasma and the voltage collapse, is very important to subsequent evolvement of the core-corona structure. In this paper, the energy deposition in the initial stage of the electrical explosion of Aluminum (Al) wire, which is widely used in relevant research and applications, is investigated experimentally. Experiments...
Firstly an embedded 55-nm Flash design based on split-gate Flash bitcell is proposed by 32KX64 IP. It demonstrates competitive features for production by wide voltage supply range (VDD=0.86~1.32V, and VD25=1.6~3.6V), low-power read feature (96uA/MHz, 64 bits), fast wake-up time from power off (<; 2us), and fast operation read speed up to 75MHz (VDD=1.08V).
This paper proposes an embedded ultra low power nonvolatile memory in a standard CMOS logic process. The memory adopts a bit cell based on the differential floating gate PMOS structure and a novel operating scheme. It can greatly improve the endurance and retention characteristic and make the area/bit smaller. A new high efficiency all-PMOS charge pump is designed to reduce the power consumption and...
This paper presents an LED lighting system with a PV source. The circuit structure of the proposed system separately adopts buck converter and flyback converter as the charger and discharger. With this circuit structure, buck converter can vary its duty ratio to regulate charging current of battery, while flyback converter with active clamp circuit can recover energy stored in leakage inductor of...
This paper presents a tunable power harvesting device and explains how a tunable capacitor based on polymer-dispersed liquid crystal (PDLC) can be used to optimize the power harvesting efficiency. For improving the power harvesting efficiency, we have developed a PDLC tunable capacitor to adjust the resonance frequency of the piezoelectric micro-cantilever beam to match the frequency of environmental...
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