Low-voltage high-speed PWM signal generations based on relaxation oscillator

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.

• Type: Conference
• Year: 2002
• Where: APCCAS
• Authors: Montree Siripruchyanun, Paramote Wardkein
• Keywords: APCCAS 2002, Current Modulating Signal, Hardware, Precise Pwm Signal, Pulse Width Modulation