WPT (Wireless Power Transmission) Technology

Wireless Power Transmission

 WPT (Wireless Power Transmission) Technology :

One of the serious issues in power framework is the losses happening during the transmission of electrical power. The loss of rate during the transmission is approximated as 26%.

The fundamental driver for power loss during transmission is the obstruction of wires utilized in the matrix.

As indicated by WRI (world asset organization), the power framework of India has the most elevated rate (27-40%) of power transmission losses on the planet.

Consequently, Telsa has proposed techniques for power transmission utilizing an electromagnetic acceptance strategy. 

wireless power transfer ppt

WPT Technology is oldest Technology and it was exhibited by “Nikola Telsa” in the year 1980. Wireless power transmission basically utilizes three principle frameworks like microwaves, sun based cells, and reverberation.

Microwaves are utilized in an electrical gadget to send electromagnetic radiation from a source to a beneficiary. Precisely the name WPT states that the electrical power can be moved from a source to a gadget without utilizing wires.

Essentially, it incorporates two coils they are a transmitter curl and a collector loop. Where the transmitter curl is powered by AC current to make an attractive field, which thus initiates a voltage in the collector loop. 

What is Wireless Power Transfer? 

Wireless Power Transfer 

Wireless power can be characterized as the transmission of electrical energy from a power source to an electrical burden without associating wires.

It is dependable, proficient, quick, low support cost, and it tends to be utilized for short reach or long reach.

The fundamental working guideline of wireless power move is, two items having comparable full recurrence and in attractive reverberation at powerfully coupled standard will in general trade the energy, while disseminating moderately little energy to the unessential off-thunderous articles. 

Besides, this strategy can be associated with an assortment of uses, as to charge cell phones, workstations wirelessly. And likewise this sort of charging gives a far lower hazard of electrical shock as it would be galvanically disconnected.

This is an arising innovation, and further, the distance of power move can be improved as the investigation across the world is as yet going on. 

Hardware Specifications HF Transformer 2 Inductor Coils Resistors Capacitors Transistors Cables and Connectors Diodes PCB and Breadboards LED Transformer/Adapter Push Buttons Switch 

Wireless Power Transfer Circuit 

The basic wireless power transmission circuit is displayed underneath. The necessary segments of this circuit essentially incorporate 20-30 magnet wire (check copper wire), A battery-1, semiconductor (2N2222) and LED. The development of this circuit involves a transmitter and a recipient. 


Take a PVC line and spin a wire on it multiple times in the wake of spinning a wire around three inches make a circle for focus terminal and proceed with the interaction.

Presently take semiconductor 2N2222 and interface its base terminal to one finish of the copper curl, the authority terminal to the opposite finish of the copper loop and presently associate the producer terminal to the negative (– ve) terminal of an AA battery.

The middle terminal of the copper loop will be associated with the positive (+ve) terminal of an AA battery.

At the point when then, at that point the beneficiary loop is put 1 inch over the transmitter curl, then, at that point the LED will flicker. 


Make a 15 become copper loop and interface a light-radiating diode to its finishes. 

wireless power transfer circuit diagram

WPT (Wireless Power Transmission) Technology

The wireless power transmission can be characterized as the energy that can be sent from the transmitter to a recipient through a wavering attractive field. 

To achieve this, power source (DC current) is changed into high-recurrence AC (Alternating Current) by especially planned hardware raised into the transmitter.

The AC helps a copper wire loop in the transmitter, which delivers an attractive field. At the point when the recipient curl is put in vicinity of the attractive field, the attractive field can make an AC (rotating current) in the getting loop.

Hardware in the getting loop then, at that point modify the AC back into DC which becomes working power. 

Utilization of Wireless Power Transfer 

The primary goal of this task is to plan a WPT framework in 3D space (move power inside a little reach) and the square graph of this undertaking is displayed beneath.

The square outline of the wireless power move basically works with HF transformer, capacitors, diode, rectifier, inductor curl filled with air and light. 

The individual is mandatory to be worked each year to change the battery. This task is intended to charge a battery-powered battery wirelessly.

Since charging of the battery is unimaginable to expect to be illustrated, we are giving a DC fan that goes through wireless power.

wireless power transfer system 

WPT (Wireless Power Transmission) Technology

In this way the power move should be possible with the transmitter (essential) to the collector (optional) that is isolated by a significant distance (say 3cm).

Thus the power move could be viewed as the TX sends and the RX gets the power to run a heap. 

Also, the WPT strategy can be utilized to charge devices like cell phones, PC batteries, iPods, propeller clock, and so on And likewise this kind of charging offers a far lower hazard of electrical shock.

Moreover, this undertaking can be upgraded by expanding the distance of power move as the examination across the world is as yet going on

Wireless power transfer applications

  • The largest application of the WPT is the production of power by placing satellites with giant solar arrays in Geosynchronous Earth Orbit and transmitting the power as microwaves to the earth known as Solar Power Satellites (SPS).
  • WPT is used in moving targets like fuel-free-electric vehicles, fuel- free airplanes, fuel-free rockets and moving robots.
  • The other applications of WPT are Wireless power source or Ubiquitous Power Source, RF Power Adaptive Rectifying Circuits and Wireless sensors.
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