| Abstract: | A thorough efficiency analysis of a boost PWM converter taking into account the conduction losses, the diode power loss, the switching losses, the gate‐drive loss and the capacitive switching loss, for both continuous conduction mode and discontinuous conduction mode is presented. The analysis is extended in the synchronous rectification case where a self driven transistor instead of the diode rectifier is adopted. The expressions of the converter efficiency can be used to predict the circuit behaviour for both a constant input and constant output voltage operation. The model has been validated using SPECTRE simulator and a 0.35 µm CMOS process, and error always lower than 2% were found. Copyright © 2005 John Wiley & Sons, Ltd. |
