Average Inductor Current Sensor for Digitally Controlled Switched-Mode Power Supplies - 2012 PROJECT TITLE :Average Inductor Current Sensor for Digitally Controlled Switched-Mode Power Supplies - 2012ABSTRACT: Current-mode control in digitally controlled switched-mode power supplies typically requires analog-to-digital (A/D) conversion of at least two signals, voltage, and current. The complexity of voltage A/D converters can be reduced using window A/D techniques. In conventional current A/D conversion, however, relatively high resolution is required over a wide range of signals, which results in increased complexity, power consumption, and cost of the controller. This paper proposes a very simple feedback sensor capable of high-resolution average inductor current sensing using two analog comparators and an analog low-pass filter. The approach requires very few external components and employs minimal digital hardware resources. A dynamic model and performance of the average inductor current sensor are experimentally verified on a 12-V input, 19-V output, 50-W boost converter prototype. The applicability of the proposed sensor is demonstrated in a digitally controlled 400-W, 400-V output Boost power factor preregulator. Did you like this research project? To get this research project Guidelines, Training and Code... Click Here facebook twitter google+ linkedin stumble pinterest Abrupt Event Monitoring for Water Environment System Based on KPCA and SVM - 2012 Digitally implemented average current-mode control in discontinuous conduction mode PFC Rectifier - 2012