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Wireless sensor networks consist of small sensor nodes and are able to sense the environment in a distributed fashion. And embedded system is a kind of special computer system which is suitable for application system with strict requirements on the functionality, cost, size and power consumption. Hence the application of embedded systems will become increasingly important. Also the amount of data...
In this paper, we study on a new isolated DC-DC converter of soft switching with discontinuous conduction mode (DCM). The switching devices in the proposed converter are operated by soft switching technique using a new quasi-resonant circuit, and are driven with DCM according to pulse width modulation (PWM). The quasi-resonant circuit uses a step-up inductor and a loss-less snubber capacitor. The...
In this paper, we study on a new buck-boost dc/dc converter of high efficiency by soft switching technique. The switching devices in the proposed converter are operated by soft switching with a new partial resonant circuit. The partial resonant circuit is designed to replacement of an energy storage inductor and a snubber circuit used in a conventional buck-boost converter, and then the configuration...
The system efficiency of the proposed buck-boost AC-DC converter is increased by soft switching method. The converter includes to merit of power factor correction (PFC) from sinusoidal control of input current. The switching behavior of control switches operates with soft switching by partial resonance technique, and then the proposed converter has high system efficiency with decrement of switching...
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