Wireless ultra low power supply - Yenra

On November 11, 2009, Texas Instruments announced a passive low frequency interface (PaLFI) device designed to wirelessly supply an ultra-low-power MSP430 microcontroller (MCU) with energy to operate even if the optional battery is empty. For example, PaLFI has the ability to remotely communicate with and power implantable medical devices, making procedures less invasive. Among numerous other potential applications, the device is also being used for production chain or container tracking and end of line configuration of electronic equipment such as CD/DVD players and measurement instruments. The PaLFI device combines a low frequency wireless interface with a serial peripheral interface which ensures stable communication within a well defined activation and communication zone. Upcoming product class releases include derivatives with security/authentication features and cost optimized versions with smaller memory minus the battery charge function for applications such as end of line product configuration.