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This paper presents a methodology to design a PID Digital Compensator for digital controller power electronics systems. This method is base on direct digital design and use on digital controller buck dc-dc converter. Crossover frequency and phase margin of close-loop system can be set by this method, and the integration coefficient in digital compensator set by this method can be avoid one of the...
This paper presents a direct digital algorithm for digital PID-controlled switched-mode power supplies (SMPS). The crossover frequency and phase margin of the closed-loop system can be set using the proposed approach. The algorithm determines the PID controller parameters, and in the proposed procedure is clearly. The algorithm also takes into account the integral gain to prevent limit-cycle oscillation...
According to the basic principle of AM modulation and the DDS technology, realizes the AM modulation signal generator design and the simulation by using Matlab/DSP Builder and the QuartusII software. Using graphic design of simulink established model of AM modulation module, substitutes for the VHDL programming, and obtains the system-level simulation; Completes the VHDL file conversion through DSP...
The main design challenges of the wireless sensor network is to obtain long system lifetime, as well as maintain sufficient sensing coverage and reliability. In this paper, a novel node-scheduling algorithm based on grade field model is presented. The grade transition algorithm in different grade field is depicted and analyzed. This algorithm can decrease network traffic and avoid additional cooperative...
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