Title :
Pulse density modulation using pulse pattern approach for zero-cross switch control
Author_Institution :
Nagoya Inst. of Technol., Nagoya, Japan
Abstract :
An approach of the pulse density modulation allowing a high modulation factor for the zero-cross switch control is proposed. The pulse pattern for the pulse density modulation is determined over an interval of several clock to allow a high modulation factor. The noise shaping filter is designed utilizing a continuous-time one to realize a high effective resolution of the modulation. In the presented example, the effective resolution is above 20 levels with the bandwidth of the Nyquist frequency using eight-clock pulse patterns with a third order noise shaping filter.
Keywords :
clocks; thermal noise; zero current switching; Nyquist frequency; clock pulse patterns; noise shaping filter; pulse density modulation; zero-cross switch control; Control systems; Delta modulation; Noise shaping; Power harmonic filters; Pulse modulation; Quantization; Shape control; Switches; Thermal variables control; Zero current switching;
Conference_Titel :
Industrial Technology (ICIT), 2010 IEEE International Conference on
Conference_Location :
Vi a del Mar
Print_ISBN :
978-1-4244-5695-6
Electronic_ISBN :
978-1-4244-5696-3
DOI :
10.1109/ICIT.2010.5472692
