WIRELESS CHARGING


RF-based wireless charging and energy harvesting enables new applications and improves product design
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RF energy is currently broadcasted from billions of radio transmitters around the world, including mobile telephones, handheld radios, mobile base stations, and television/radio broadcast stations. The ability to harvest RF energy, from ambient or dedicated sources

Mobile wireless charging and sensing by drones
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Wireless rechargeable sensor networks (WRSN) are promising platforms for a wide range of applications. Although sensors in a WRSN can be replenished by mobile wireless chargers over distance, challenging issues remain in many aspects. For example, stable wireless

New wireless power transfer via magnetic resonant coupling for charging moving electric vehicle
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New configuration for charging moving electric vehicle is proposed in this paper. Multiple transmitters are connected in parallel to a common power supply. When the electric vehicle departs from the transmitter, switching must be applied to ensure the branch is turned off

Magnetic induction or magnetic resonance for wireless charging
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COVER STORY demand placed upon them. Battery packs must also have small physical dimensions in order to meet the application requirements of mobile solutions. Since battery capacity per unit volume is at its limits, solutions will either require larger battery capacity or

Dynamic wireless charging of electric vehicles on the move with mobile energy disseminators
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Dynamic wireless charging of electric vehicles (EVs) is becoming a preferred method since it enables power exchange between the vehicle and the grid while the vehicle is moving. In this article, we present mobile energy disseminators (MED), a new concept, that can

Research on the time-varying charging and dynamic data routing strategy for rechargeable wireless sensor networks
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The energy problem of wireless sensor networks could be solved by recharging sensor nodes periodically through the wireless energy transfer technique, which would made sensor nodes remain optional persistently. However, appropriate charging and routing

Wireless plug-in electric vehicle (PEV) charging
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April-2012 Milestone: coils designed and tested for 7kW power level Milestone: power inverter fabricated and tested using new coupling coils and loaded using battery eliminator at 7kW Milestone: power flow control algorithm validated on bench with prototype inverter

System level considerations for integration of resonant capacitors in high power wireless charging
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Mass adoption of electric vehicle technology is highly dependent upon ease of recharging at the consumer level. Various strategies including battery swapping, improved battery efficiency, and wireless charging have emerged to address this issue. In the context of

Wireless charging system with a non-conventional compensation topology for electric vehicles and other applications
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The proposed paper presents a 500 W, universal input, wireless electric vehicle battery charging system using a non-conventional compensation topology. An algorithm to compensate Loosely Coupled Inductive Power Transfer (LCIPT) systems with such topology

Wireless Charging in the Context of Sensor Networks
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Breakthroughs in wireless communications have given rise to low-cost sensor networks, which are being used in a wide range of sectors such as household, health and military sectors. The rising popularity and demand for wireless sensor networks mandate efficient

85 kHz band 44 kW wireless rapid charging system for electric bus
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Wireless charging technology for heavy-duty vehicles, such as electric buses, has been actively investigated with a view to accelerating deployment of eco-friendly transportation. But, there are several concerns regarding conventional wireless charging systems, such as

Capacitive Wireless Power Transfer System Applied to Low-Power Mobile Device Charging
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Wireless Power Transfer (WPT) technologies are most popularly based on inductive coupling (IPT), using magnetic fields as transfer interface. Recently, studies have been published on capacitive coupling (CPT), through electric fields. CPT has small power

Characterization of wireless power charging receiver for mobile device
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In this paper, the characterization of wireless power charging receiver for mobile device developed based on magnetic resonance coupling is presented. The receiver is constructed of an electromagnetic waves radiator which is implemented by use of microstrip patch on a The antenna is one of the most critical components in wireless charging systems since the power transfer efficiency of the system is largely dependent on the antenna performance. In this chapter, the modeling and analysis of antennas are introduced with a focus on

Secondary-Side Bridge Rectification for Wireless Charging Applications
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A very popular material used in todays industry is the Ferrite core. The relative permeability of a manganese zinc ferrite core is 640 or greater. For wireless chargers, however, air is the core material. This is because the primary winding is located in a separate unit from the

Development of an optimized wireless charging application solution
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The growth of the wireless charging market is currently being hindered by the lack of a common standard that guarantees interoperability between devices (clients) and charging pads (hosts) from different vendors. The solutions available in the market today force the end

Dosimetry for resonance-based wireless power transfer charging of electric vehicles
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This paper presents the dosimetry of a resonance-based wireless power transfer (RBWPT) system for electric vehicles applications. The compact RBWPT system is designed to transfer power at 150-mm distance. The electric and magnetic fields generated by the RBWPT

Wireless charging of mobile phone using microwave
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Now a days a mobile phones becoming a basic part of our life. this is one of the most important medium for the communication, the mobile phone batteries has always been problem for recharging. Mobile have to be put to recharge after the batteries has drained out

Static in-wheel wireless charging systems for electric vehicles
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Wireless charging is a popular upcoming technology with uses ranging from mobile phone charging through to electric vehicle (EV) charging . Large air gaps found in current EV wireless charging systems (WCS) pose a hurdle of its success. Air gaps in WCS cause

Wireless Power Transmission for Charging Mobiles
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Wireless power transmission holds a promise able future for generating a small amount of electrical power for charge mobile wirelessly. growing Importance in wireless field which has numerous benefits such as it would completely eliminate the need of carrying charger along



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