Linear PWM Strategy for SMPS
Keywords:
Switch mode power supply, Pulse Width Modulation, NonlinearAbstract
A switched-mode power supply (switching-mode power supply or SMPS) is an electronic Power supply incorporates a switching regulator in order to be highly efficient in the conversion of electrical power. In SMPS using PWM chip, It requires hyperbolic curve of nonlinear nature of Input voltage & on time for smooth working. The desired hyperbolic curve of nonlinear nature cannot be obtained using the existing PWM chip. So sometimes it over compensates & sometimes it under compensates. This causes error in the output voltage. In this paper SMPS with linear PWM strategy is introduced.
References
J.Humphreys, C.J.Hammerton, D.Brown, R.Miller, L.Burley, “Power Semiconductor Applications-Switched Mode Power Supplies”, Philips Semiconductors, Chapter 2, Hamburg, 1994.
Mohd. Shahruddin Bin Harun, “Design Switch Mode Power Supply (SMPS) using Pulse Width Modulation Controller Technique”, Faculty of Electrical & Electronic Engineering University Malaysia Pahang (UMP), November 2007.
Wei-Hsin Liao, Shun-Chung Wang and Yi-Hua Liu, “Generalized Simulation Model for a Switched-Mode Power Supply Design Course Using MATLAB/SIMULINK”, Member, IEEE, 2011.
Texas Instrument, “Transistor Circuit Design”.
National Semiconductor, “National Semiconductor Linear Data Book”.
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