86.605

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The 86.605 application field and working principle refer to a type of electrical engineering field called Wireless Power Transfer (WPT). This technology is based on the idea of electromagnetic waves to induce current in a distant conductive object. Generally, WPT consists of two main components: a transmitting unit and a receiving unit. The former usually has an electrical source, an antenna, and a frequency generator, while the latter contains an antenna, a rectifier, battery, and output.

In principle, WPT is based on the concept that electric and magnetic fields can induce an electrical voltage, as in a transformer, in nearby conductors. Electric fields may have contributions from external power sources such as alternating current (AC) or direct current (DC). Magnetic fields may also be generated from permanent magnets, caused by currents in wires, or generated by specialcoils. WPT may employ any of these fields or combination of them to induce a voltage.

Wireless power transfer has many practical applications. On a large scale, electric grids use this method to transmit energy to distant homes and commercial buildings. On a small scale, household appliances and electronic devices may be powered wirelessly. In medical applications, WPT can be used for powering various biomedical implants and prosthetics, as well as for diagnostic purposes.

On a public level, WPT could be used to charge electric vehicle batteries. This technology could eliminate the need of wires and the installation of charging stations at refueling spots. In addition, WPT could be employed in special cases like robot-operated machinery at hazardous areas or for powering robots or other sending equipment on space missions.

The fundamental working principle employed in most WPT transfer systems is based on the electrical phenomenon of power induction. The basic idea is that an alternating electric field is generated by the transmitting device, and when a conductive element is close enough, electric current is induced in it. This is achieved by a transmitter, usually referred to as the primary, sending power to a receiver or secondary. The receiver may take the form of an antenna or specialised electrical circuit, with the sole purpose of converting theinduced voltage into a usable form of energy. This is usually an alternating current, which can then be used to power a device or charge a battery.

In order to achieve efficient and cost-effective transmissions, designers must take into account certain design considerations such as frequency selection, efficiency, power level, cost, location, safety, range and performance. Also, system designers should ensure that the WPT system complies with legal requirements and applicable regulations.

Wireless power transfer is a rapidly growing technology that could significantly revolutionise the way power is transmitted. It has promising applications in various fields, ranging from medical to public utilities, and many countries are already investing in its advancement.

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