Title :
Hypersonic MOSFET-based power inverter with random pulse width modulation
Author :
Legowski, Stanislaw ; Trzynadlowski, Andrzej M.
Author_Institution :
Dept. of Electr. Eng., Wyoming Univ., Laramie, WY, USA
Abstract :
Results of an investigation of a MOSFET-based, voltage-controlled, three-phase power inverter operating at switching frequencies exceeding those used in the typical supersonic inverters by one order of magnitude, i.e. within the hundreds of kilohertz range, are presented. The inverter, called hypersonic, uses state-of-the-art design of the driving and snubber circuits, as well as a random pulse-width modulation (PWM) technique. Switching frequencies as high as 250 kHz are maintained without compromising the efficiency of the inverter, while the load current waveform is practically a pure sinusoid.<>
Keywords :
insulated gate field effect transistors; invertors; power convertors; power transistors; pulse width modulation; 250 KHz; MOSFET; driver circuits; efficiency; hypersonic invertors; load current waveform; power convertors; power transistors; random pulse width modulation; snubber circuits; state-of-the-art; switching frequencies; three-phase power inverter; Control systems; MOSFET circuits; Multichip modules; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Semiconductor diodes; Snubbers; Space vector pulse width modulation; Switching frequency;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96750
