A New Method of Generate the PWM Wave Using Analog Circuits

DOI

10.2991/icsnce-16.2016.23How to use a DOI?

Keywords

PWM; Triangular wave; Comparator

Abstract

PWM is pulse width modulation by adjusting the width of the output square wave has been widely used in motor speed control LED brightness adjust rectifier audio output etc Now we always use software to product PWM this method has some limitation not meet high accurate fast PWM wave produce According to this a new method of generate the PWM wave using analog circuits has been raised A triangular waveform generator and a comparator was used to generate a PWM waveform Duty cycle was inversely proportional to the input voltage. Error amplifier PWM waveforms use a negative feedback to ensure high accuracy and linearity of the output. Test results showed that this design could product fast, high-accuracy PWM waveform its output fixed or change by special regular. This design produced a new idea for hardware engineer when they want to design different PWM waves has a certain reference values

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jian Huang
PY  - 2016/07
DA  - 2016/07
TI  - A New Method of Generate the PWM Wave Using Analog Circuits
BT  - Proceedings of the 2016 International Conference on Sensor Network and Computer Engineering
PB  - Atlantis Press
SP  - 119
EP  - 122
SN  - 2352-5401
UR  - https://doi.org/10.2991/icsnce-16.2016.23
DO  - 10.2991/icsnce-16.2016.23
ID  - Huang2016/07
ER  -