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The energy efficiency of WSN is important to determine whether a WSN can be widely and reliably deployed and applied. The fundamental problem is to lessen the energy consumption produced by the communication modules of WSN nodes. This paper analyzes and solves the problem from the perspective of how to design efficient data aggregation method. It aims to reduce the data quantity to be collected through...
The Low Earth Orbit (LEO) satellites for Earth observation confront intermittent connection and high packet-loss rate, which significantly limits the returns of scientific data due to non-continual short-time windows. Disruption-Tolerant Networking (DTN) provides an alternative approach for networking for the Earth observation (EO) constellation, which could exploit adequately each short-time contact...
This paper proposes a novel resonant gate driver for a high frequency synchronous buck converter. The proposed resonant gate driver can reduce switching losses significantly in addition to gate drive losses compared to a conventional gate driver. Additionally, the proposed driver has better noise immunity to dv/dt effect and is less sensitive to parasitic inductance. Loss analysis and optimization...
In this paper a new non-isolated full bridge topology is introduced. The primary side of this topology is a full bridge; however, the input voltage ground of the conventional full bridge is connected directly to the positive point of the output and not connected to the input ground. In this arrangement, the input current flows directly to the load without going through the transformer. The secondary...
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