Title :
Thinned-out controlled class D inverter with delta-sigma modulated 1-bit driving pulses
Author :
Koizumi, Hirotaka ; Kurokawa, Kosuke ; Mori, Shinsaku
Author_Institution :
Dept. of Elec. & Electron. Eng, Tokyo Univ. of Agric. & Tech., Japan
Abstract :
In this paper, the application of delta-sigma modulated 1-bit driving pulses to the class D voltage-switching series resonant inverter is proposed. Following the modulated 1/0 code, the gate-driving pulses to the inverter are eliminated. The class D inverter, operating at 200 kHz, generates an AC output voltage at 50 Hz through the additional switching legs. All the switch devices keep zero voltage and/or zero current switching. The modulation scheme and the circuit configuration are introduced. The waveforms are numerically calculated and the output waveform is in good agreement with the desired one. Calculation results are verified with Matlab Simulink simulation.
Keywords :
DC-AC power convertors; delta-sigma modulation; resonant invertors; switching convertors; zero current switching; zero voltage switching; 200 kHz; 50 Hz; class D inverter; delta-sigma modulated driving pulses; thinned-out controlled inverter; voltage-switching series resonant inverter; zero current switching; zero voltage switching; AC generators; Delta modulation; Leg; Modulation coding; Pulse inverters; Pulse modulation; Resonant inverters; Switches; Zero current switching; Zero voltage switching;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464839
