WIRELESS CHARGING

Wireless Charging provides a convenient, safe, and reliable way to charge and power millions of electrical devices at home, in the workplace and in industry.
By eliminating the use of physical connectors and cables, wireless charging provides a number of efficiency, cost and safety advantages over the traditional charging cable.
From smartphones, to hand-held industrial devices and heavy-duty equipment applications, wireless power maintains safe, continuous, and reliable transfer of power to ensure all varieties of devices and equipment are charged and ready to go at a moment’s notice.
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WHAT IS WIRELESS CHARGING?

Essentially wireless charging (a.k.a wireless power transfer or charging by induction) uses electromagnetic fields to safely transfer power from a transmitting source to a receiving device for the purposes of wirelessly charging (or recharging) a battery.  As the name suggests, it does so without the use of a physical connection.

HOW DOES WIRELESS CHARGING WORK?

Wireless charging is based on the principle of magnetic resonance, or Inductive Power Transfer (IPT).  This is the process of transferring an electrical current between two objects through the use of coils to induce an electromagnetic field.
The diagram below simplifies the process of wireless charging and power transfer into 5 key steps.
How Resonant Wireless Charging Works
TRANSCRIPT OF WIRELESS CHARGING STEPS
  • Mains voltage is converted into high frequency alternating current (AC).
  • The alternating current (AC) is sent to the transmitter coil by the transmitter circuit.  The alternating current then induces a time varying magnetic field in the transmitter coil.
  • Alternating current flowing within the transmitter coil induces a magnetic field which extends to the receiver coil (when within a specified distance).
  • The magnetic field generates current within the receiver coil of the device.  The process whereby energy is transmitted between the transmitter and receiver coil is also referred to as magnetic or resonant coupling and is 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 can then be used to wirelessly charge the battery.
It’s through this process that power is safely transferred over an air gap. As well as any non-metal object that might exist between the coils. Such as wood, plastic or granite.

WIRELESS CHARGING FOR COMMERCIAL  APPLICATIONS

Proxi-Point Industrial Wireless Charging & Power Transfer
The advantages of wireless charging is not only restricted to consumer device applications.  Wireless charging offers real benefits in terms of productivity, efficiency and safety for industrial applications  where cables and connectors can become unreliable, dangerous or incur high maintenance costs.

BENEFITS OF WIRELESS CHARGING:

  • Reduced cost associated with maintaining mechanical connectors. For example: Rotating electrical connectors like Slip Rings
  • Safe powering or charging devices that need to remain sterile or hermetically sealed (waterproof)
  • Prevent corrosion due to elements such as oxygen and water
  • Eliminate sparks and debris associated with wired contacts
PowerbyProxi have been pioneering the application of inductive power for industrial applications since 2007. Enabling equipment suppliers to deliver mission-critical wireless power systems in wet, dirty and moving environments the world over.
With a range of wireless power transfer solutions for different power requirements, we are able to deliver unique advantages for the transmission of power for a range of applications, some of which are highlighted below:

MEDICAL DEVICES & EQUIPMENT

WIRELESS CHARGING OF MEDICAL DEVICES & EQUIPMENT


Wireless Power for Hospitals

Wireless charging has a vital role to play in the future of medicine and medical care.
Nowadays, even the most basic of medical procedures requiresa range of advanced medical equipment. Equipment that’s powered largely via battery packs or mains power supplies.  Wireless power provides real benefit in such sterile and high traffic environments where traditional connectors become not only source of contamination, but are also a physical hazard as room configurations are constantly changing.

VEHICLES & TRANSPORT

WIRELESS CHARGING OF ELECTRIC VEHICLES

Wireless charging of electric vehicles continue to be one of the most researched  areas of wireless power transfer.  By reducing the reliance on fossil fuels, electric vehicles provide a sustainable and environmentally safe means for fuelling our vehicles well into the future.
However  today’s electric cars are limited to an average travel distance of between just 10 and 40 miles before they require charging. Initiating a convoluted charging process that requires access to a charging point, charging cables, and a multiple-hour wait before the vehicle is sufficiently charged.
With the introduction of wireless charging, the charging experience is set to become a seamless one. Allowing for the convenient charging of electric cars whether parked or on the move.
It won’t be long before this dream becomes a reality. In fact, a number of car manufacturers are already putting test vehicles through their paces. Including the Formula E’s wirelessly chargeable safety car.
This inclusion of wireless charging capabilities won’t just drive an increased adoption of electric vehicles. It will also play a crucial role in supporting the environmental sustainability of future transport. Helping to rid the environment of harmful fossil fuels, cutting down on air pollution emissions and providing not just a more convenient future, but a healthier one too.
Wireless charging for electric vehicles could be carried out in a number of ways, including:
  • Parking Spots & Charging Pads
    Like our smartphones and tablets, charging pads will provide one of the most convenient methods of charging electric vehicles. With these pads built into specially designed parking spots, you’ll be able to charge your car while you’re grabbing your shopping or catching a movie.
  • Electrically Charged Highways Of The Future
    In time, you may not even need to stop to charge your electric car. Highway England is just one body currently testing the viability of charging lanes that charge vehicles while they’re driving. With the charging devices built into the very asphalt itself.

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