Wireless Charger

Wireless charging eliminates the need for cords, connectors and electrical

plugs and allows any user with a compatible device to use the same wireless

charging pad. Users simply place the portable device on the charging surface to

complete the wireless connection.

 

In terms of unit deployment, the consumer wireless power market is still in

its infancy. As new design options for smaller and cheaper solutions become

available, the adoption rate for mobile and consumer electronics will increase

significantly. Within the next 2 years, the installed base for wireless charging

enabled devices is forecasted to exceed 100 million units.

 

System safety for wireless charging, as with any power transfer system, is a major concern.

Typically, such wireless power transfer systems are required to have Foreign Object Detection (FOD), e.g.,

to prevent heat generation in metal objects that are accidentally placed on the power transmitter, and (ii)

communication between transmitter and receiver for to control the transferred power level and detection of

exceptional power losses in the channel. In addition the temperature of the charger is measured to ensure

that system temperature will not exceed a defined maximum safety level. The required FOD level and safety is depending on the transmitted power, use case and wireless charging standard.

 

The level of required FOD detection and safety is depending on power level, use case and wireless

charging standard.

 

The market adoption of wireless charging will be determined by the availability of worldwide mature

standards, and the availability of simple to use and affordable charging products. Developing

flexible hardware solutions can help to reach this goal. Adding application expertise and system

enhancements beyond simple charging can improve the user experience and therefore help to drive the

demand for these new technologies. Smart Wireless Charging solutions enable Secure Connections for a Smarter World.