Discussion
The component used in an electric vehicle for charging of battery is:
Answer: A
The key gives the boost DC-DC converter as the component used for charging the battery. In the charger the rectified DC voltage is raised to the level that the battery needs by a boost (step up) DC-DC converter, which also shapes the input current in a power factor correction stage.
A DC-AC inverter is used on the drive side to feed the motor, an AC-AC converter has no role in charging a DC battery, and a V/F controlled induction motor is the traction machine, not a charging component. The explanation follows the key, option A.
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