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Temperature management of the food supply-chain is important for ensuring compliance and the quality of perishable products like vaccines and fish. While conventional strategies have relied on using monitors attached to packaging containers, self-powered time-temperature monitoring is attractive because the technology can be embedded with passive RFID tags and can be integrated with every food or...
Self-powered timers provide a mechanism to achieve temporal synchronization between two passive devices (for e.g., RF tags, credit/access cards, and thumb drives) without the need for any external powering or clocks. As a result, the timers could be used to implement dynamic SecureID type authentication involving random keys and tokens that need to be periodically generated and synchronized. We report...
The design of a low power 16-bit 100MS/s pipelined analog-to-digital converter (ADC) is presented in this paper. The area of sampling capacitor and the chip is reduced by adopting stage scaling technology and optimizing the structure of multiply digital-to-analog converter (MDAC). Low power dissipation and high performance operational trans-conductance amplifiers (OTA) in the first two pipelined stages...
Some improvements in the design of LDMOSFET power amplifier (PA) are demonstrated for effectively suppressing metallic shielding cover (MSC) effects. The internal and outer matching structures on the PCB are at first simulated and optimized using the commercial full-wave software HFSS. Further, they are integrated with the lumped-element circuit model of die and co-simulated using the software ADS...
A design methodology of reconfigurable distributed low noise amplifier (RDLNA) dedicated for wireless home communications operating from 0.8GHz to 11GHz is presented in this paper. This RDLNA is suitable to operate in two different operation modes: low power consumption mode and high performance mode. The used technology is 0.15μm InGaAs Active Layer pHEMT Process provided by TRIQUINT. The circuit...
This paper describes the design of 1MVA 4.16kV Medium-Voltage motor drive using Hexagram inverter, and is compared to Cascaded H-bridge inverter motor drive system. System design and component selection is elaborated for motor drive system using both topologies. Power loss and reliability is also estimated for comparison purpose. Fault tolerant control is a feature for both motor drive system and...
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