Secured Wireless Power Transmission Using Radio Frequency Signal

Randy, B. Renil; Hariharan, M. V.; Kumar, Ravi

doi:10.5121/ijist.2014.4315

Cited by 5 publications

(4 citation statements)

References 3 publications

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“…These tuned magnetic fields generated by the primary coil can be arranged to interact actively with matched secondary windings in distant equipment. These magnetic fields are far from more-weakly with any surrounding objects or materials such as radio signals or biological tissue [6][7][8][9][10][11][12][13]. Working of a Transmitter: The input from mains is given to the power and frequency controller.…”

Section: State-of-the-art: Wireless Power Transfer Using Solar Energymentioning

confidence: 99%

Developments in Wireless Power Transfer Using Solar Energy

Dehra¹

2021

Wireless Power Transfer – Recent Development, Applications and New Perspectives

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This chapter presents state-of-the-art and major developments in wireless power transfer using solar energy. The brief state-of-the-art is presented for solar photovoltaic technologies which can be combined with wireless power transfer (WPT) to interact with the ambient solar energy. The main purpose of the solar photovoltaic system is to distribute the collected electrical energy in various small-scale power applications wirelessly. These recent developments give technology based on how to transmit electrical power without any wires, with a small-scale by using solar energy. The power can also be transferred wirelessly through an inductive coupling as an antenna. With this wireless electricity we can charge and make wireless electricity as an input source to electronic equipment such as cellphone, MP3 Player etc. In harvesting energy, technologies of ambient solar radiation like solar photovoltaic, kinetic, thermal or electro-magnetic (EM) energy can be used to recharge the batteries. Radio frequency (RF) harvesting technologies are also popular as they are enormously available in the atmosphere. The energy converted to useful DC energy which can be used to charge electrical devices which need low power consumption. The chapter has also presented a parallel plate photovoltaic amplifier connected to a potentiometer as a Resistance-Capacitance (RC) circuit power amplifier. The effect of inductance and resulting power transfer has been theoretically determined in the RC amplifier circuit. The electrical and thermal properties and measurements from a parallel plate photovoltaic amplifier were collected to analyze the unbalanced power transfer and inductance in a nonlinear RC circuit amplifier using equivalent transfer functions. The concept of Wireless Information and Power Transfer using Electromagnetic and Radio Waves of Solar Energy Spectrum is also briefly outlined.

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Section: State-of-the-art: Wireless Power Transfer Using Solar Energymentioning

confidence: 99%

Developments in Wireless Power Transfer Using Solar Energy

Dehra¹

2021

Wireless Power Transfer – Recent Development, Applications and New Perspectives

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“…In [26], the concepts of security centers on the transmitted power signal to be received by a receiver in wireless power transmission system. By using the RF signal, the concept of the encryption-decryption algorithm is introduced to achieve the security of power transfer.…”

Section: C) Radio Frequency Signalmentioning

confidence: 99%

“…From this technique, the result of power transferred from the transmitter to the receiver is maximum at the closest position with distances of 3, 2, 1, and 0.5 feet, which are increased, and the power received in the receiver is reduced. Thus, the receiver has matched the passcode to receive the power signal successfully [26]- [29].…”

Section: C) Radio Frequency Signalmentioning

confidence: 99%

Encryption Techniques and Wireless Power Transfer Schemes

Hussin

2018

IJEECS

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<p>Wireless power transfer (WPT) is one of the most useful ways to transfer power. Based on power transfer distances, the WPT system can be divided into three categories, namely, near, medium, and far fields. Inductive coupling and capacitive coupling contactless techniques are used in the near-field WPT. Magnetic resonant coupling technique is used in the medium-field WPT. Electromagnetic radiation is used in the far-field WPT. This paper reviews the techniques used in WPT. In addition, energy encryption plays a major role in ensuring that power is transferred to the true receiver. Therefore, this paper reviews the energy encryption techniques in WPT. A comparison between different techniques shows that the distance, efficiency, and number of receivers are the main factors in selecting the suitable energy encryption technique.</p>

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“…The researches on wireless electric power transmission were to be encouraged, because of economic considerations compared to cables. Some methods of transmission system power were inductive coupling, inductive coupling resonance, capacitive coupling, magneto dynamic coupling and radioactive techniques [12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Design and Investigation of Miniature Solar Cell Source Inductive Wireless Power Transfer on Various Distances, Turns and Loads

Waluyo¹,

Syahrial²,

Yasin³

2018

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The research was to transfer the electric power from a photovoltaic module in wireless utilized magnetic coupling method and an inverter. It was also investigated the waveform characteristics due to various distances, turns and loads. The measurements were performed by using a storage digital oscilloscope, to obtain the voltage magnitudes and harmonics. The results indicated that the receiver voltage magnitudes would decrease drastically, in hyperbolic curves, as the distance increased. The receiver voltage magnitudes would also decrease considerably as the turns reduced, with the average reductions as 0.095 and 0.357 volts, from 600 to 400 and 400 to 200 turn reductions respectively. The THDs in the transmitter voltages were fairly constant, as average of 26.75%. Nevertheless, the receiver voltage THDs would decrease significantly as the distance increased, with decreasing average as 38.09% of the three condition percentage reductions. While, the THDs would reduce considerably as the turns decreased, as 25.28% in average for the 200 to 400, and 400 to 600 turns on one cm of distance. Otherwise, the voltage magnitudes would decrease as the loads increased where from one to five lamp loads, as 0.489, 1.334 and 1.482 volts reductions for 200, 400 and 600 turns respectively. The THDs would decrease slightly as the loads increased, with the average reduction of 5.4% from one to five lamp loads, for the three turn conditions. The receiver voltage magnitudes would increase steep linearly, with the average ratio of one per 9.30 as the transmitter voltage magnitudes increased. While, the THDs of receiver voltages would reduce considerably as the transmitter voltage magnitudes increased, with 8.98% reduction for 1.4 to 5.2 volts of the transmitter voltage magnitudes. The receiver power would reduce more drastically, compared to the voltages, as the distance increased. This case was caused which the powers were influenced by both electric voltage and current. The efficiency would also reduce drastically as the distance increased. Nevertheless, it was gentler than the power, because the early values have already been low. Both parameters were significantly influenced by the coil turns, which the efficiency would be lower as the coil turns reduced. Based on the research results, the maximum transferring efficiency was 0.0615. The efficiency would slightly increase and tended to be saturated toward a certain value as the load increased. Therefore, most likely, in the future, the coil turns should be increased.

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Secured Wireless Power Transmission Using Radio Frequency Signal

Cited by 5 publications

References 3 publications

Developments in Wireless Power Transfer Using Solar Energy

Developments in Wireless Power Transfer Using Solar Energy

Encryption Techniques and Wireless Power Transfer Schemes

Design and Investigation of Miniature Solar Cell Source Inductive Wireless Power Transfer on Various Distances, Turns and Loads

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