Low-voltage high-speed PWM signal generations based on relaxation oscillator
نویسندگان
چکیده
∗ Department of Teacher Training in Electrical Engineering, King Mongkut’s Institute of Technology North Bangkok Abstract This paper new two simple PWM (Pulse Width Modulation) signal generations based on modified relaxation oscillator are introduced. Their advantages of the proposed principle are that the precise PWM signal can be easily achieved with a high frequency range up to several megahertz and a low-voltage power supply. The proposed circuits are able to accept either voltage or current modulating signal. They are very suitable for developing into Integrated Circuits (Ics) form in communication applications. The simulation and experimental results are also depicted, they shown good agreement with theoretical anticipation.
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