Approach to the implementation of linear-assisted-based battery chargers

This article shows the proposal of a linear–assisted regulator or linear–&–switching hybrid regulator with a constant switching frequency. The control loop of the system is based on the current–mode technique. The main disadvantage of a regulator with current–mode control is the inherent instability of the loop when switch duty ratios are greater than 0.5. In order to make stable the proposed linear–assisted regulator, the article shows the technique based on a slope compensation. This kind of voltage regulators is especially devoted to battery chargers in renewable energy systems.Peer Reviewe