Abstract
It's a major drawback of the battery charging in traditional electric vehicles is that it relies on the use of a plug-in device for battery charging. This research proposes a wireless power and bidirectional data transmission scheme, data related to battery status, vehicle identification number, or emergency messages can be mutually transmitted between two isolated units via an LC tank. The primary unit employs an inverter to yield alternating current and power flow to the load via mutual inductance. The secondary unit transfers data by adjusting current of load, and the primary unit receives data based on the zero-voltage switching (ZVS) method. The primary unit transfers command by trimming the current's curve and the secondary unit receives command and make decoding using the period of carrier wave. The design scheme is useful to handle the situation of emergency by sending back the message to the primary unit to make an emergent halt.
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