Comparison of current balancing configurations for Primary Parallel Isolated Boost Converter

Wide Operating Voltage Range Fuel Cell Battery Charger

“…6. Figure 7 shows the converter voltage gain during extended voltage range operation; since only one transformer is active, effective voltage conversion ratio of the converter is halved as shown in (4). …”

“…Due to the transformer series connection on the secondary side the two currents flowing through the two primary stages are forced to be equal during the inductor discharge state. In order to balance the current between the primary stages during the inductor charging subinterval, a current balancing transformer (CBT) [4] is inserted. This component is implemented as two inversely coupled inductors that present high impedance in case of current.…”

Analysis and Design of Fully Integrated Planar Magnetics for Primary–Parallel Isolated Boost Converter

“…However, the two inductors, L 1 and L 2 will be fully direct coupled if the shared I-core is removed. This results in a huge spike of inductor current at commutation point if there is any small mismatch in two primary stages [26]. Accordingly, the effect of the shared I-core is to decouple the two inductors.…”

“…The prototype of separated case-1 is shown in Fig.16-(b) which is consisted of single inductor with integrated balancing transformers and two discrete transformers. The detailed principle about this structure can be found in [26]. In separated case-1, two turns single inductor are wound in EILP-58 core with 0.5-mm airgap length and two turns of integrated balancing transformer are wound in each side leg.…”

Implementation of Maximum Power Point Tracking to Improving the Solar Cell Efficiency

“…MPPT power is detected by using signals from voltage and current input. Analog signals are converted by A/D converters into digital signals and processed inside the controller[5] [7]…”