A Peak Current-Mode Control Boost Converter Model for Stability Analysis: A Design Approach

A simplified model is described for a peak current-mode control boost converter. The proposed model is implemented by averaging the operating point of the converter such that closed-loop stability can be analyzed. This model behavior is verified in simulation by implementing a 3.9 V input to 5 V output peak current-mode control boost converter with 240 mA load current. The simulations showed a good matching of ac response and load step response, and a detailed analysis of the model is presented.