New Technique to Generate the PWM Signal

  • Pongswatd, Sawai (Department of Instrumentation Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Masuchun, Ruedee (Department of Instrumentation Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Smerpitak, Krit (Department of Instrumentation Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Ukakimapurn, Prapart (Department of Instrumentation Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang)
  • Published : 2004.08.25

Abstract

This paper presents a new technique to generate the 1-bit signal by decoding Pulse Width Modulation (PWM) signal to a binary file before programming onto the ROM. Since each PWM signal requires only 1-bit digital signal, PWM signal and other forms of digital signal related to multi-bit can be simply generated. The results demonstrate that using this new technique to generate the PWM signal can simplify the process and hardware complication. Moreover, the signal's data and frequency can be easily modified by programming the data onto the ROM and using the counter, respectively, which can reduce the size of the circuit and make the PCB easier.

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