Project

Wireless Battery Charging

Application

Cell Phone Case and Charging Pad

Customer Need

A leading cell phone accessory company needed assistance in the development of a wireless charging system for a number of common smartphones. The goal was to eliminate the need to plug in a charging adaptor to recharge the device. Having skills primarily in mechanical design, this customer came to AVID to help them develop this highly electronic-based line of phone cases and charging pads.

AVID's Solution

AVID has years of experience in wireless power design as well as charging circuitry for LiIon technology, and this project involved adapting the technology and packaging it for the product. AVID supported the mechanical concepts and performed the complete development of the electronics. We also evaluated the requirements of the various phone models related to charging such as charging current, battery capacity, protection, indicators, etc. to insure proper operation (similar to the charging adaptor). Once the design was complete and verified, AVID set up production with a Contract Electronics Manufacturer for the first 6000 pieces. Once the initial production was done and the kinks worked out, production was transferred to China.

• System Architecture Review / Planning
• Hardware and Firmware Design / PCB Layout / Coil Design / Packaging
• Prototyping and Validation
• Certification for Agency Standards and Phone Mfr Standards
• CEM Evaluation and Selection, Engineering Build Support
• Initial Production
• Project Management

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