Refresher: What is Induction? →

Why are inductive wireless power transfer systems limited in application?

Existing wireless power transfer solutions are constrained by the following problems:

Energy loss as heat in a wireless power transfer system

Poor Efficiency

Input energy is wasted as heat.

Wireless power transfer sensitivity to coil misalignment

Coil Alignment Sensitivity

Effective operation requires accurate alignment between induction coils; misalignment results in failure or very poor efficiency.

Wireless power transfer system inability to accommodate step load changes

Static Power Delivery

Existing solutions struggle with fast changes in power demand, effectively delivering only constant or slowly varying power.

Wireless power transfer sensitivity to changing coil alignment

Movement Disrupts Power Flow

Relative movement of the induction coils disrupts the flow of power.

Wireless power transfer system inability to support multiple load devices

One Device Limit

Powering multiple receiver coils from a single transmitter coil is not an option.

Wireless power transfer system's requirement for a battery on the receive side

Battery Required

A battery or large energy buffer is necessary on the receive side to compensate for these inherent limitations.

Our approach to inductive wireless power transfer solves all of these problems simultaneously.

By solving these problems with an easy to implement chipset, not only can we improve existing applications of wireless power transfer, we will enable engineers to create whole new classes of devices and products.

What our chips deliver:

  • High Efficiency Floor

    ≥80% efficient, DC in to DC out.

  • Substantially reduced sensitivity to coil alignment and proximity.

    Reliable power without perfect placement.

  • Dynamic power delivery.

    DC supply output behavior that adapts instantly to load changes.

  • Relative movement allowed.

    Keeps power flowing as devices shift.

  • Multiple receiver device support.

    One transmitter, multiple devices.

  • Battery‑free operation.

    Devices can run directly from the wireless link.

  • Bidirectional data transfer

    No additional wireless data transport required.

System block diagram demonstrating how Nimbus Integrated chips would be used in a one-transmitter, two-receiver-device system
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Availability

Development hardware capable of transferring 20W is in the works and demos will be available Q1 2026. Final specifications TBD. Drop your email below for updates!

Contact

Do you have an application in mind for our hardware? We want to know more about it! How much power does your application require? microwatts? kilowatts? Let us know!

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