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Asynchronous logic and power gating are promising techniques for low duty cycle applications which need maximal energy efficiency, which are becoming more common-place with the popularity of wireless and embedded systems. This paper investigates the potential use of Nano/Micro- Electro- Mechanical (N/MEM) switches as the means of power gating asynchronous computation. A systematic optimization of...
Capacitance sensors are widely used for sensing physical parameters. Conventional capacitance to digital methods use complex analog ADC techniques which are power hungry. Recently a fully digital solution was proposed with improved power consumption. This paper describes a number of problems in that solution, analyzes these problems, and proposes a new design free of these problems. A voltage senor...
Oscillators are needed in many systems for time keeping purposes. They are often called timers. In low duty cycle systems, such as wireless sensors, such oscillators may incur a significant portion of system power consumption. Extensive research exists in making on-chip oscillators low power. However, the other part of the time keeping function, that of computing the number of oscillation cycles,...
The effect of variability has become increasingly significant as a result of technology geometry scaling. This paper describes Asynchronous Assisting Logic (AAL) blocks and the method of introducing them into modern FPGA architecture, in order to increase tolerance of the wide range latency variations caused by parametric variation, and temperature and supply voltage fluctuations. The proposed method...
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