Two-stage boost converter using a tapped inductor for a high voltage amplitude modulation

It presents a two-stage boost converter to achieve a high voltage amplitude modulation ratio. To obtain a higher voltage boosting rate, the proposed converter uses a tapped inductor, and a double boosting stage. Thanks to this circuit configuration, the proposed converter increases a low input dc voltage to a high output dc voltage reducing a limitation on a duty-ratio. At the same time, an input battery and output filter capacitors connect in series. It reduces the number of battery stacks resulted in improvement on structural stability and reliability. Theoretical analysis for the proposed converter is proven by computer-aided simulations.