Wireless Charging

AVID Technologies – Experts in Wireless Power

AVID has been a leader in wireless power design since 2003 and is an associate member of the Wireless Power Consortium (WPC) which developed the Qi wireless power standard. AVIDs expertise in Qi wireless development has also led us to become the leading developer and supplier of Qi wireless testing and verification tools for companies looking to develop Qi-enabled wireless power products.

Areas of Expertise


  • Qi low (5W) and medium power (15W) design (WPC v1.0 – v1.2)
  • Inductive and resonant charging
  • Industrial design to account for environmental variables
  • Foreign object detection

End Application Expertise


  • Automotive Integration
  • Consumer and retail furniture/ work surface integration
  • Industrial and Military applications and integration
  • Consumer devices including power tools, mobile phones

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Case Studies


AVID has partnered with the leading consumer and industrial manufacturers to help them implement wireless charging into their latest end products.

Cell Phone Case and Charging Pad

Cell Phone Case and Charging PadProject:
Cell Phone Case and Charging Pad

Application
Wireless Battery Charging

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.

Value Added or Technologies Applied

  • 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
Portable Field Computer for Military

Portable Field Computer for MilitaryProject:
Portable Field Computer for Military

Application
Wireless Battery Charging

Customer Need
Working with an armed services research lab, AVID created a prototype field-ready rugged portable computer to be used by military personnel. The goal was to eliminate cables and wiring to free the soldier from being bound should the need to move quickly arise. The system included both the computer battery charging electronics and transmitting electronics and coils that allow connection to various power sources such as fuel cells, aux vehicle power, battery banks, generators, etc. without physically connecting with wire. The charging system could also be integrated into clothing, vehicles, field office infrastructure, etc.

AVID’s Solution
AVID has years of experience in wireless power design as well as charging circuitry for various battery 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 charging electronics. Using a portable computer supplied to us, AVID integrated the electronics required for power conversion and charging and created the proof of concept prototype. Also the transmitting electronics were packaged such that the research lab could integrate them into the desired medium for the various use cases identified above. This proof of concept platform will be used to demonstrate the technologies and provide opportunities to secure additional research project funding.

Value Added or Technologies Applied

  • System Architecture Review / Planning
  • Hardware and Firmware Design / PCB Layout / Coil Design / Packaging
  • Prototyping and Validation
  • Project Management
Adjustable Appliance Lighting

Adjustable Appliance LightingProject:
Adjustable Appliance Lighting

Application
Wireless Battery Charging

Customer Need
Certain high-end appliances have user conveniences such as adjustable shelves or options that desire to incorporate LED lighting into them. To eliminate the need to have wires or other non-desirable end user modifications, the vision is that regardless of the configuration, power is available. Exposed connectors can present user hazards and/or reliability concerns.

AVID’s Solution
Incorporating a wireless power transmitter with multiple coils into the appliance with wireless power receivers integrated into the movable shelves. The transmitter coils were located such that regardless of what configuration the user chooses, the receiver coils in the shelf had adequate alignment with a transmitter coil. The wireless power solution includes intelligence to allow only the coils, which detected a receiver to be energized.

Value Added or Technologies Applied

  • System Architecture Review / Planning
  • Hardware and Firmware Design / PCB Layout / Coil Design / Packaging
  • Prototyping and Validation
  • Integration of the Electronics Solution into an Appliance for Demonstration Purposes
  • Project Management

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