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Virtual machine monitors (VMMs) have emerged as potential tools %% are one of the promising approaches for implementing security mechanisms to enhance the security and/or reliability of software systems. There are two approaches to implementing VMMs. One is a software-based approach that emulates the execution of virtual machines via software. The other is a hardware-based approach that utilizes the...
This paper studies stability and bifurcation of a simple piecewise linear dynamical system relating to several kinds of switching converters with solar cell input. Applying a simplification method, we derive the 1D phase map that is useful for precise analysis. The system can exhibit rich bifurcation phenomena, and for simplicity, we consider bifurcation for two parameters corresponding to temperature...
A 40 nm 14-core mobile application processor with a 222 mW Full-HD H.264 video decoder and a video/audio multiprocessor is developed. It has 25 power domains. The power switch circuits realize less than 1 ??s power-up switching while minimizing rush current. The x512b power-efficient stacked DRAM l/F achieves 10.6 GB/S bandwidth.
High reliability generating apparatus with a PWM rectifier equipped with a DC reverse-blocking diode is proposed. The PWM rectifier adjusts the power from a permanent magnet synchronous generator by means of position sensorless control. Due to the DC diode, the PWM rectifier is shoot-through free, i.e. the switches in one arm are not broken with their simultaneous turning-on caused by electromagnetic...
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