Switch Mode Power Supply (SMPS) Topologies

AN1114. Switch Mode Power Supply (SMPS) Topologies (Part I). EQUATION 1: SHUNT-CONTROLLED. Author: Mohammad Kamil REGULATOR Power LOSS. Microchip Technology Inc. 2. P LOSS = V OUT I S + ( I OUT + I S ) R S. INTRODUCTION. However, if we control the output voltage VOUT by The industry drive toward smaller, lighter and more varying RS and keeping IS zero, the ideal Power loss efficient electronics has led to the development of the inside the converter can be calculated as shown in Switch Mode Power Supply (SMPS). There are several Equation 2. Topologies commonly used to implement SMPS. This application note, which is the first of a two-part EQUATION 2: SERIES-CONTROLLED. series, explains the basics of different SMPS. REGULATOR Power LOSS. Topologies . Applications of different Topologies and their pros and cons are also discussed in detail. This 2. RS. application note will guide the user to select an P LOSS = V IN -------------------------2- ( RS + RL ).

Sep 10, 2007 · The semiconductor switches used to implement switch mode power supplies are cont inuously switched on and off at high frequencies (50 kHz to several MHz), to transfer electrical energy from the input to the output through the passive components. The output voltage is controlled by varying the duty cycle, frequency or

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