Basics of Wireless Charging

Yesterday’s dream of distributing power wirelessly is becoming a reality based upon exceptional efforts of industry regulatory agencies, component manufacturers, and design engineers with long-term vision. The use of wireless charging is expected to increase dramatically as consumers are freed from carrying bulky cables that have extra weight and the potential to wear out the mechanisms associated with them. Implementation of wireless charging schemes are easier than ever thanks to a wide availability of dedicated chip sets. Within the topic of wireless charging - there are several different power levels, architectures, and design approaches associated with wireless power transfer. This paper will serve as a starting point and describe the families of capacitors most commonly selected for use in electromagnetic wireless chargers.

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