Since the release of the Wireless Power Consortium (WPC) specification in late 2010, implementations of Qi-compliant wireless power technology have ranged from the mobile and consumer handheld market to industrial and medical.
The market demand for the convenience and safety of standards-compliant wireless power systems continues to grow rapidly. With the right products and tools to help our customers quickly bring new products to market, TI is actively making wireless power a reality. As demand increases, other industry groups have formed to promote their technologies and vision for implementing wireless power. As a technology innovator, TI is committed to providing customers products to implement wireless charging in their devices and is an active member of the WPC, Power Matters Alliance (PMA) and the Alliance for Wireless Power (A4WP).
Differentiate your designs with the right wireless power solutions. TI delivers the industry's broadest portfolio of wireless power products, technologies, and solutions. Paired with resources that make development fast and easy, TI's wireless power solutions simplify design and speed time-to-market.
TI's wireless power technologies include the bqTESLA™ family of transmitter and receiver ICs, as well as a wide selection of battery charger and protection for robust power solutions. All products include an extensive selection of support collateral, such as development tools, technical documentation, reference designs, application expertise, and support to simplify your design process and speed time to market.
A wireless power system consists of a charging pad (transmitter or primary) and receiver (secondary-side equipment). Coils in both the charging pad and the receiver are magnetically coupled when the two devices make contact. Power transfers from transmitter to receiver via coupled inductors (e.g. an air core transformer). The amount of power transferred is controlled by sending feedback communication (error signals) to the primary device to increase or decrease power. The transmitter coil is powered off most of the time, only occasionally waking to see if a receiver is present. When a receiver authenticates itself, the transmitter remains powered on.
View the Wireless Power system block diagram