Contactless battery charging device

Inductive charging

Applications of inductive charging can be divided into two broad categories: Low power and high power: Low power applications are generally supportive of small consumer electronic devices such as cell phones, handheld devices, some computers, and similar devices which normally charge at power levels below 100 watts. ...

[PDF] A new generation of universal contactless Battery Charging ...

This invention is related to a new planar inductive battery charger for portable electronic equipment such as mobile phones, palm pilots and CD players. New multilayer printed-circuit-board winding matrices of hexagonal structures that can generate magnetic flux of almost even magnitude over the surface of the winding arrays have been developed. The new concept …

The best wireless chargers for iPhone and Android in 2024

Best basic charger. Best iPhone/Apple Watch charger. Most versatile. Best of the rest. If you want to power up your devices without cables, you''ll need one of the best …

A seamlessly integrated device of micro-supercapacitor and …

a The scheme of one MSC in the integrated device.b CV curves measured at scan rates of 20–100 mV s −1. c The galvanostatic charging/discharging curves of a single MSC with different current ...

Best wireless chargers 2022: top picks for iPhone or Android

Best wireless chargers 2022. Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you''re buying the best. Find out more about how we test....

Wireless Power Transfer: What It Is, How It Works, and Why You …

Wireless power transfer, also known as wireless energy transmission or wireless charging, is a technology that allows electrical energy to be transmitted from a power source to …

Contactless battery charger, electronic device, battery pack, and ...

A contactless charging system is made up of an electronic device and a contactless charger 200 that recharges the electronic device in a contactless manner. The electronic device transmits a full charge command indicating completion of charge. Upon receipt of ...

How wireless chargers work

An easy-to-understand explanation of how a wireless induction charger can recharge your toothbrush or cellphone. Picture: Nikola Tesla (1856–1943), pioneer of wireless power. Photograph by Sarony; engraving by T. Johnson, c.1906, courtesy of …

A new contactless battery charger for portable telecommunication ...

A new contactless battery charger that is well suited for the applications to the low-profile portable telecommunication/computing electronics such as cellular phones, Internet phones, palm-tops, and other hand-held electronics of the future is presented. This paper presents a new contactless battery charger that is well suited for the applications to the low …

Contactless battery charging device

This creation is a "contactless charging device" with regard to a new contactless type and is applicable to the chargers for packaging and rechargeable batteries. The charger in itself is equipped with an ultrasound waves oscillator, in which the circuits is made output to an emission resonator to produce a powerful magnetic field and to radiate to the surrounding area of the …

Comparative evaluation of front and back end PFC IPT systems …

Inductive power transfer (IPT) is widely discussed as an alternative to contact charger for plug-in hybrid and electric vehicles (PHEV/EV). This paper analyzes a contactless battery charger back end power factor correction (PFC) concept, which allows to reduce the primary side circuit complexity and physical size. For that purpose, the main volume and loss …

A contactless charging platform with reconfigurable coils

W. X. Zhong, Xun Liu, and S. Y. Ron Hui "A Novel Single-Layer Winding Array and Receiver Coil Structure for Contactless Battery Charging Systems with Free-Positioning and Localized Charging Features", IEEE Trans. Industrial Electronics, vol. 58, no. 9, …

Inductive charging

OverviewHistoryApplication areasSafetyStandardsElectronic devicesTransportationMedical implications

Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in vehicles, power tools, electric toothbrushes, and medical devices. The portable equipment can be placed near a charging station or inductive pad without needing to be precis…

The best wireless chargers in 2024 | CNN Underscored

We tested 31 wireless chargers to find the best Qi stands and pads, the best MagSafe chargers for iPhone 12 and 13 and the best 3-in-1 Apple chargers that can also charge an Apple Watch and...

The Best Qi Wireless Charger for iPhone and Android Phones

The Belkin BoostCharge Pro Portable Wireless Charger Pad with MagSafe is the best Qi (the predominant wireless-charging standard) wireless charger for a single device. It''s rated to charge at up ...

The Best Wireless Portable Chargers and Power Banks

If you want the option to wirelessly charge multiple devices—say, an iPhone and a set of AirPods—the Satechi Duo Wireless Charger Power Stand is your best bet. Like our top pick, it has pass...

US5157319A

FIG. 1 illustrates an embodiment of a contactless system 10 constructed in accordance with the present invention for supplying charging power for recharging an energy storage device, such as a battery system or battery 12 of an electric vehicle 14. While the ...

How Does Wireless Charging Work? All Your Questions Answered

Many peripheral devices. In addition to smartphones, many manufacturers have introduced wireless charging to accessories and peripherals too: Apple: For earbuds, there is a wireless charging case for AirPods 1st and 2nd generation; the Apple Watch cannot be charged by any charger beyond the proprietary Apple Watch charger ...

(PDF) Coil Array Structures Compared for Contactless Battery Charging ...

IEEE TRANSACTIONS ON MAGNETICS, VOL. 44, NO. 5, MAY 2008 617 Coil Array Structures Compared for Contactless Battery Charging Platform Jaron Achterberg, Elena A. Lomonova, and Jeroen de Boeij Electromechanics and Power Electronics Group

Coil Array Structures Compared for Contactless Battery Charging …

IEEE TRANSACTIONS ON MAGNETICS, VOL. 44, NO. 5, MAY 2008 617 Coil Array Structures Compared for Contactless Battery Charging Platform Jaron Achterberg, Elena A. Lomonova, and Jeroen de Boeij ...

A Novel Single-Layer Winding Array and Receiver Coil Structure …

Coil Structure for Contactless Battery Charging Systems With Free-Positioning and Localized Charging Features W. X. Zhong, Xun Liu, Member, IEEE, and S. Y. Ron Hui, Fellow, IEEE Abstract—The planar contactless battery charging system is an emerging

US5341083A

FIG. 1 illustrates an embodiment of a contactless recharging system 10 constructed in accordance with the present invention for supplying charging power for recharging an energy storage device, such as a battery system or battery 12 of an electric vehicle 14. ...

A contactless power transfer in electric vehicles for battery charging ...

In the current age of wireless communication among multiple devices, including mobile phones, laptops, wireless speakers, and more, the power supply for these devices remains predominantly reliant on wired connections or energy storage solutions such as batteries. These batteries, in turn, necessitate contact-based chargers for recharging. This paper presents a foundational …