The questions we get asked first.

No, and the difference matters commercially. Wireless charging needs a transmitter installed for that purpose, a pad, millimetre alignment, and it delivers nothing once the device moves away.

Antiwire installs nothing. KIWI harvests the energy an installation already produces because it is on — a motor, a drive, a panel, a luminaire, a cable — plus light and motion. There is no pad, no alignment and no second device to power.

RF harvesters need a radio signal being broadcast nearby — a dedicated transmitter or a strong ambient one — and typically return microwatts. Take the signal away and the harvest stops.

KIWI uses a different source: the electromagnetic field that powered equipment produces by itself, continuously, indoors and in the dark. It is the only chip on the market that harvests it, and it delivers up to 15 mW of regulated DC — with light and motion added on top.

Three sources, managed by one device. The electromagnetic field around powered equipment is the primary source: it is there whenever the equipment is on. Light and motion are added whenever they are available.

The sources rarely fail together — a running machine radiates and vibrates while the lights above it are off — so KIWI draws from whichever is present and the supply to your device stays smooth, without three separate harvesters each with its own storage.

There is no single distance figure, and we will not quote one. Power available at the load depends on the installation, the coupling achieved, the storage topology and the consumption profile of the application. KIWI ONE® is specified at its own terminals, not as a link budget.

What we do instead is size it: send us the load rail, average consumption, peak current, peak duration, transmission rate and installation environment, and we return an energy budget for your product.

Coupling falls with distance and with intervening metal, and a metallic enclosure between the source and the harvesting element attenuates the available field sharply. This is a placement constraint, not a defect: the harvesting element goes as close to the field source as the mechanics allow, with no metallic shield between the two.

It is one of the first things we check in an assessment, because it decides whether the energy budget closes at all.

In a conventional low-power product the topology is fixed: a cell, a low-dropout regulator that steps its voltage down to the rail the circuit needs, and the circuit. The battery only ever drains and the regulator's job is to lose the surplus as heat.

KIWI ONE® occupies that same position and changes what the position does. It harvests on the EH_IN pins, charges the storage element through VSTOR and regulates the output on VDC_OUT. The rest of the schematic is unchanged, which makes adoption a component decision rather than a system redesign.

No. Everything that makes the harvesting work is inside the device. Your team designs a power rail and chooses where the harvesting element goes; we specify the element and validate the coupling with you.

You need a storage element, which is not the same thing. KIWI ONE® is storage-agnostic: a capacitor suits short, infrequent pulses; a supercapacitor suits frequent pulses and long life; a lithium cell gives autonomy through periods with no available field.

Peak current and peak power at the load are governed principally by the storage element, not by the IC. Size the storage for the peak and the harvesting budget for the average.

Because the storage is recharged in place, it can be small, soldered and sealed inside the product — the design no longer has to be built around a battery the user must reach.

Regulated output configurable from 1.5 V to 5.0 V with ±2 % accuracy, up to 100 mA while VSTOR is at least 0.3 V above the output. Continuous DC delivered to load and storage runs 200 µW to 15 mW, with end-to-end conversion efficiency of 85 % typical and 92 % at the optimum operating point.

Quiescent current is 500 nA typical with the output enabled and 350 nA with it disabled. Cold start from depleted storage needs 300 µV and 1 µA. All design targets at advance-information status.

Two answers, and they are different. The harvesting architecture is in production — more than 100 companies operate devices built on Antiwire™ across Brazil, North America and Europe, in more than 112 industrial plants and highway installations, and in excess of 50,000 deployed devices.

KIWI ONE® as an integrated circuit is at advance-information status. Every parameter on this site is a design target, qualification is not complete, and the production datasheet with measured MIN/TYP/MAX data will replace the current figures when it is. We would rather you knew that before the first meeting than after it.

Two supply models: the device, or a licence and co-development of the technology. Which one fits depends on volume, on how much of the harvesting element is specific to your mechanics, and on whether you want the architecture inside your own silicon.

There is no distributor channel and no web shop. The route in is a technical conversation — start by talking to our engineers and we will come back with an energy budget.

Twelve patent rights across six jurisdictions, covering electromagnetic wave capture optimisation, the microstrip antenna and its manufacturing method, and the resonance generator that captures oscillatory signals — plus the LRLC communication protocol and battery-free device families.

The published numbers are listed under the company section.