WiTricity has developed systems/devices that use Magnetic Resonance to couple energy through oscillating magnetic fields. Resonant coupling occurs when the natural frequencies of the two systems – a transmitter and a receiver — are approximately the same. WiTricity powered transmitters and receivers are specially designed magnetic resonators that efficiently transfer power over distances via the magnetic near-field.
Magnetic Resonance delivers wireless power over distance, without compromise, from milliwatts to kilowatts. There are 4 major advantages:
WiTricity is the acknowledged leader in magnetic resonance with a 10-year history in designing Magnetic Resonance systems and has unmatched magnetic & power electronics system designs. WiTricity holds the foundational patents for highly resonant wireless power transfer, with over 165 issued patents and over 200 pending patent applications.
Inductive charging technology requires the transmitter and receiver to be in close contact and with perfect spatial alignment.
Magnetic Resonant charging allows power transfer over distance with greater spatial freedom, allowing multiple devices to be charged simultaneously – through surfaces at different power levels.
WiTricity is driving the creation of standards in multiple product categories. For consumer electronics, WiTricity is taking a leadership position in the AirFuel Alliance to help drive integration of magnetic resonance in products globally. In automotive, WiTricity is driving international standards efforts through its leadership and participation in industry groups including the SAE International (Global), IEC/ISO (Global), DKE (Germany) and CATARC (China).
Radiative refers to solutions that radiate energy into a broad space and then captures a small fraction of the spent energy to power a device. Some radiative products have been proposed, but are generally limited to delivering hundreds of milliwatts.
Many people assume that Magnetic Resonance must be similar to magnetic resonance imaging (MRI) technology. However, the technologies are similar in name only. MRI is, as its name suggests, a technology for using magnetism as a basis for diagnostic imaging of soft tissue in the human body. The “resonance” referred to in “MRI” refers to the resonance of atomic structures.
Products designed with WiTricity technology comply with all applicable global safety standards and regulations.
Our technology is capable of scaling from applications requiring milliwatts to those requiring kilowatts of power.
The power transfer efficiency of a WiTricity solution depends on the relative sizes of the power transmitters and receivers, tuning of the solution for a specific distance between transmitters and receivers, and the desired power level. Efficiency varies with these application-specific characteristics but can be as high as 95%.
WiTricity’s technology can be engineered to meet the requirements of many use cases. A rule of thumb for distance to transfer energy can depend on the size and dimension of a resonator coil in the system (on average, usually twice the size of coil in distance). Contact us
Most common building and furnishing materials, such as wood, stone, granite, gypsum wall board, plastics, textiles, glass, brick, and concrete are essentially “transparent” to magnetic fields—enabling WiTricity’ technology to efficiently transfer power through them.
If you have an object, for example a metal back smartphone, we can engineer a magnetic resonance system to transfer power to the device.
Yes, WiTricity has reference designs for magnetic resonance wireless charging at different power levels. These reference designs are applicable to serve a wide range of markets and applications. Please contact us directly to get started.
Through ODMs and partners, WiTricity enables the promise of wireless power by offering complete solutions from key components to system design. OEM customers and Tier 1 suppliers have the opportunity to purchase our EV reference designs to develop and manufacture their own wireless power transfer solution. Our unique capabilities and breadth of technology know-how allows us to help you build your wireless product quickly and efficiently.
WiTricity technology is designed for Original Equipment Manufacturers (OEM’s) and Original Design Manufacturers (ODM’s) to embed directly in their products and systems. If your company is an OEM, please contact us to discuss your application in more detail. If you are a consumer that is eager to purchase products that are WiTricity enabled, please use our contact form and we will connect you with our partner network.
WiTricity is focused on licensing and enabling our ODM partner network. We do not have channel distribution, nor are we pursuing distributors.