Wireless Charging And How It Works – What Is Wireless Charging


Wireless Charging And How It Works? Are you eager to know what wireless charging is all about and how it works? This article will provide you with details about wireless charging, how it works and other things you should know about the service. Wireless charging tech has been in existence over 100 years now, but adding it to devices like Apple’s new iPhone makes it more outstanding.

Wireless Charging And How It Works - What Is Wireless Charging

However, it has to do with the ability to transmit electricity through the air by creating a magnetic field between two circuits- the transmitter and the receiver.

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Wireless Charging And How It Works

For close to 100 years the technology was without lots of practical applications, except for few electric models. Moreover, today there are close to a half dozen wireless charging tech. They all aimed at cutting cables to from smartphones and laptops to kitchen appliances and cars. Wireless charging offers promising of increasing mobility and advancing that could enable tiny internet of things devices to get power many feet away from a charger.

What Is Wireless Charging?

  • Wireless charging is an act of transmitting power to a device without the use of wire/cord.
  • Is the process of electrically charging battery powered devices and equipment without the use of a wired electrical power connection.

It uses an electromagnetic induction to provide electricity to portable devices. The most common software is the QI wireless charging best for tablets, smartphones and smart watches.

How Wireless Charging Works?

It works by simply transferring energy from the charger to a receiver in the back of the smartphone through electromagnetic induction. The charger makes use of an induction coil to create an alternating electromagnetic platform, which the receiver coil in the phone converts back into electricity to be fed into the battery.

There’s a magnetic loop antenna known as copper coil, it is used to create an oscillating magnetic field, that can setup a current in one or more receiver antennas.

However, you add the corresponding capacitance, for the loops resonate at the same frequency, the number of induced current in the receiver increases. The resonate inductive charging or magnetic resonance allows power transmission at greater distances between transmitter and receiver and also increases efficiency. In this case, the size of the coil determines how far the power transfer will go. The larger the coil the more far the charge can travel.

Types Of Wireless Charging

There are different types or methods of transferring power to devices wirelessly. They are as follow:

  • Electromagnetic induction
  • Magnetic Resonance
  • Electric field coupling
  • Radio reception
  • Laser wireless power transfer
  • Electric vehicle power transfer

Electromagnetic Induction:

It features a simple, compact, low cost circuit structure that transmits power using induced magnetic flux generated between the power transmission and the receiving side.

Magnetic Resonance:

With this method, power is transmitted through magnetic resonance utilizing resonators on the transmitting and receiving sides. It is mostly used for a long distance power transmission.

Electric field coupling:

This type of transmission is achieved by facing electrodes on the power transmitting and receiving sides towards each other to form a capacitor.

Radio reception:

This type, converts current to electromagnetic waves on the transmitter side, receives the electromagnetic waves from an antenna on the receiver side, turns the waves to direct current using a rectifier circuit, then transmits power using an electromagnetic field.

How To Wirelessly Charge Your iPhone

How to wirelessly charge your phone? Its very simple with your iPhone X or iPhone 8. All you need to do is to place your face up on a special mat or tabletop. This is enough to start charging your smartphone.

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