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This paper focuses on the circuit which is to reduce the number of switching elements in comparison to a common multi-level inverter NPC inverter. Increasing the number of levels of the output voltage at reduced circuit number switching elements, and performs waveform improvement. Typically, the ratio of the input voltage of the multi-level inverter is E1 : E2 = 1 : 1. When the ratio of the input...
A circuit topology for a bi-directional isolated DC-DC converter and its operation are proposed and evaluation results are discussed. This converter is based on a voltage-source primary circuit and a current-source secondary circuit with an active clamp circuit. To decrease the lower limit of the input voltage for a large voltage range, the proposed topology uses a “small boost circuit” consisting...
This paper designs and implements a charger with high output current for EV batteries, the structure of the charger is formed of a four-phase interleaved buck converter with synchronous rectification and associated with the digital controller, in which the current sharing control is realized. The interleaved control scheme can reduce the output ripple and decrease the power component stress in battery...
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