vastaanottokeloja

Vastaanottokeloja, often translated as receiver coils or secondary coils, are essential components in inductive power transfer (IPT) systems. These coils are designed to capture the electromagnetic energy transmitted by a primary coil. When an alternating current flows through the primary coil, it generates a fluctuating magnetic field. This magnetic field extends outwards and passes through the receiver coil. According to Faraday's law of induction, this changing magnetic flux induces an electromotive force (EMF) in the receiver coil, which in turn drives a current.

The design of a receiver coil is critical for efficient energy transfer. Factors such as the coil's geometry, the number of turns, the material of the core (if used), and its orientation relative to the primary coil all influence the amount of power that can be received. Common shapes include circular and rectangular coils. The frequency of the alternating current also plays a significant role in the efficiency of the inductive coupling between the transmitter and receiver.

Receiver coils are a fundamental part of many wireless charging applications, including charging electric vehicles, mobile devices, and other portable electronics. They can also be found in medical implants and industrial automation systems where wired connections are impractical or undesirable. The development of advanced receiver coil designs continues to focus on improving efficiency, reducing size, and enabling greater flexibility in the placement of devices to be charged.