Wireless Power Charging Technologies
And Its Usage
Wireless charging is an emerging technology. It transmits power through an air gap to many electrical devices, mainly mobile devices for energy replenishment. Basically, the attempt is to create the charging process easy and user-friendly by removing the physical cable connection between the mobile and therefore the cable. There has been a growing need in the wireless field because it has enormous benefits just like the user doesn’t must carry a mobile charger with him/her, no must keep mobile devices just about charging socket as wires have a shorter length.
Wireless charging is convenient when electrical contacts aren’t acceptable and therefore the battery is embedded within the product or when the merchandise can not be reached. Wireless charging is often employed in medical devices and food products where reflex or bacteria levels must be kept to a minimum and no electrical contacts are allowed.
Wiring charging also can reduce the number of cables and power adapters you wish to own custom manufactured for your device or application.
Wireless charging is often sized to deliver 10W or 25W of energy to the battery. It is often a decent solution to charge your battery. It also can charge your battery at a quick rate betting on the scale of the battery pack.
In most applications, the gap between the 2 coils is often 5mm. it’s possible to increase that range to a minimum of 35mm.
The basic working of wireless power involves the transmission of energy from a transmitter to a receiver via an oscillating magnetic field. To achieve this, electricity (DC) supplied by an influence source is converted into high-frequency electricity (AC). The AC energizes a copper wire coil in the transmitter that generates a flux. Once a second receiver coil is placed within range of the force field, it can induce an AC within the receiving coil. To summarise: The ‘mains’ voltage is converted into an AC signal (Alternating Current), which is then sent to the transmitter coil via the electronic transmitter circuit. The AC flowing through the transmitter coil induces a magnetic field that may extend to the receiver coil (which lies in relative proximity). The magnetic field then generates a current that flows through the coil of the receiving device. The process whereby energy is transmitted between the transmitter and receiver coil is also named magnetic or resonant coupling, and achieved by both coils resonating at the same frequency. Current flowing within the receiver coil is converted into direct current (DC) by the receiver circuit, which might then be accustomed to power the device.
Benefits of Wireless Power Transfer The removal of physical connection delivers several benefits over traditional cable power connectors and is mentioned below:
It reduces the price related to maintaining direct connectors.
- It provides greater convenience for charging of everyday electronic devices.
- It ensures safe power transfer to applications that need to remain sterile or hermetically sealed.
- It reduces the danger of corrosion because the electronics may be fully enclosed.
- It provides consistent power delivery to rotating, highly mobile industrial equipment.
- It delivers reliable power transfer in critical systems like wet, dirty, and moving environments.
Wireless power technology offers the possibility of removing the last remaining cord connections required to replenish portable electronic devices. This promising technology has significantly advanced during the past decades and introduces a large number of user-friendly applications.
