Development of a pulse-width modulated power MOSFET-based audio amplifier

Author

Aris, I.B. ; Hulley, L.N. ; Mariun, N.B. ; Sahbudin, R.K.Z.

Author_Institution

Dept. of Electr. & Electron. Eng., Putra Malaysia Univ., Serdang, Malaysia

fYear

1998

fDate

1998

Firstpage

152

Lastpage

156

Abstract

This paper presents the design and development of a pulse-width-modulated (PWM) power MOSFET-based audio amplifier. A natural sampled PWM switching strategy is implemented in the development of the amplifier to reduce its harmonic level and increase its efficiency. IRF510 power MOSFETs are used as the amplifier power switching devices. From the results obtained, it is found that the efficiency of the amplifier can be increased to more than 90%

Keywords

audio-frequency amplifiers; circuit testing; harmonics; network synthesis; power MOSFET; power semiconductor switches; pulse width modulation; 90 percent; IRF510 power MOSFETs; PWM power MOSFET-based audio amplifier; amplifier efficiency; amplifier harmonic level; amplifier power switching devices; design; natural sampled PWM switching strategy; pulse-width modulated power MOSFET-based audio amplifier; Adders; Impedance matching; MOSFET circuits; Power amplifiers; Power engineering and energy; Pulse amplifiers; Pulse modulation; Pulse width modulation; Space vector pulse width modulation; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Electronics, 1998. Proceedings. ICSE '98. 1998 IEEE International Conference on

Conference_Location

Bangi

Print_ISBN

0-7803-4971-7

Type

conf

DOI

10.1109/SMELEC.1998.781170

Filename

781170