WIRELESS CHARGER FOR BIOMEDICAL DEVICES

Abstract

Wireless power transmission (WPT) is a critical technology that provides an alternative for power transfer and communication with implantable medical devices (IMDs). The basics of wireless power transmission include the inductive energy that can be transmitted from a transmitter coil to a receiver coil through an oscillating magnetic field. The AC current supplied by a power source is transformed into high-frequency AC current by particularly designed electronics that are built into the transmitter.In the TX (transmitter) section, the high frequency AC current in the copper coil creates a magnetic field. Once an RX (Receiver) coil is located near to the magnetic field, the magnetic field can induce an AC current in the receiving coil which is to be then converted into DC current in the form of output voltage which is to be used to charge the and thus becomes working power.