Wireless Power Transmitter Analog Front End

Nowadays, wireless power charging has become more and more common among mobile devices. Due to its widespread use, Wireless Power Consortium (WPC) created the Qi standard. This Qi interface standard is created for inductive electrical power transfer over distances of up to 4cm. The Qi system is used by placing the mobile device on top of the power transmission pad. It charges the mobile device via resonant inductive coupling. This project is a design of a wireless power transmitter analog front end. It contains all of the analog components required to implement a WPC compliant 5-V transmitter. Read more

Wireless Relay Control using IC2262/2272 and ATmega328PB

The IC2262/2272 transmitter is powered by a 12V battery. The receiver and the microcontroller operate with a 5V power supply. The optocouplers, transistors, and relays use a separate 12V power supply to isolate the high voltage devices attached to the relay contacts from the low voltage devices use in this circuit just like the microcontroller and receiver.

STWBC Wireless Battery Charger Transmitter

Wireless charging is the process of transferring power from transmitter to the receiver end without any physical connection. This method of charging electronic devices contributes to ease in charging and even convenience to user. The reference design being shown is the STEVAL-ISB027V1, a 5-watt Qi A11 wireless charger transmitter eval-board from STMicroelectronics based from the STWBC, a wireless battery transmitter. Read more


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