Title :
Noise-less inverter with novel hybrid output filter
Author :
Kamada, Jo ; Funato, Hirohito ; Ogasawara, S.
Author_Institution :
Dept. of Electr. & Electron. Eng., Utsunomiya Univ., Japan
Abstract :
The higher precision and low noise in output voltage and current has been required in some applications i.e. audio-video equipment, medical equipment and so on. In this paper, a new power converter which realizes low noise output with high efficiency is proposed. In the proposed converter, a hybrid filter is inserted to the output of a PWM inverter. The hybrid filter is composed of LC filter and a power amplifier. The amplifier is inserted in series to the filter capacitor to improve the LC filter. Noise suppression effects of the proposal circuit are verified by simulations and experiments.
Keywords :
PWM invertors; RLC circuits; power convertors; power filters; LC filter; PWM inverter; hybrid output filter; noise suppression; noise-less inverter; power amplifier; power converter; Capacitance; Capacitors; Circuit noise; Circuit simulation; Power amplifiers; Power filters; Pulse width modulation inverters; Resonance; Resonant frequency; Voltage;
Conference_Titel :
Industrial Electronics, 2005. ISIE 2005. Proceedings of the IEEE International Symposium on
Conference_Location :
Dubrovnik, Croatia
Print_ISBN :
0-7803-8738-4
DOI :
10.1109/ISIE.2005.1528986
