BI-ENERGY

POWER CONVERSION

Bridging the gridand the battery

From wireless charging in the road to the silicon in a data centre

Bi-Energy designs and supplies power for robots, energy storage and AI servers, using the high-frequency conversion technology it first built for electric-vehicle wireless charging. Successive public R&D projects since 2022 have given us automotive-grade component development and field demonstration experience.

22kW wireless power conversion module
22kW wireless power conversion module
11
Public R&D projects
Awarded every year since 2022; 5 running now
14
Patent applications
From pad and coil structures to bidirectional transfer
18
Commercial development contracts
Wired chargers, wireless modules, OEM engineering
10
Permanent staff
5 public projects and 4 commercial contracts in parallel

WHY NOW

How power gets used is changing

How power gets used is changing in three directions at once. All three ask for the same component — conversion that is smaller, denser, and flows both ways.

More machines that move

Robots follow electric vehicles. As machines arrive on site that nobody plugs in, charging becomes something the machine has to solve for itself.

Computing demands power

As the power drawn by a single AI server rack climbs, how much power fits in a given space decides how much computing fits there. The power supply became the bottleneck.

Power flows both ways

With solar and storage on the grid and vehicles pushing power back into it, conversion equipment that only works in one direction no longer suffices.

CORE TECHNOLOGY

Moving power across a gap

Sending power across the air gap from a pad in the ground to a pad under a vehicle, and stepping grid voltage down to what a processor consumes inside a data centre, are the same problem. Switch at high frequency, cut the losses with resonance, carry it through magnetics.

AIR GAP

Power across an air gap

EV and robot wireless charging
  • Transmit and receive pad design with resonant circuits
  • SAE J2954 WPT classes — from slow charging to fast
  • Receive pad with integrated rectifier and in-house control boards
  • Foreign-object and living-object detection with automatic alignment
VOLTAGE GAP

Power across a voltage drop

AI server power · ESS conversion
  • AI server power supplies — high power density design
  • The data-centre feed path from grid to silicon
  • High-efficiency conversion on SiC and GaN
  • Grid-tied bidirectional power conversion
AIR GAP — crossing the gapTransmit padReceive padair gapVOLTAGE GAP — crossing the voltage dropGridMid-stageLow voltageSiliconResonant conversionhigh frequency · SiC · GaN
Wireless power transfer across an air gap and power conversion across a voltage drop rest on the same high-frequency resonant technology
85kHz resonant power conversionSiC · GaN · Planar Magnetics

SEGMENTS

One technology, five markets

The conversion technology built for EV wireless charging branched in four directions. Robotics is the same technology made smaller, the data centre is the same technology pushed to higher density, and renewable energy is the same technology scaled up. Monitoring is the layer that attaches to all of them.

EV wireless charging2022 — the starting pointRoboticsthe same technology, smallerData centrethe same technology, denserRenewablesthe same technology, largerMonitoringa layer over everything
EV wireless charging branches into robotics, data centres and renewables, with monitoring layered over all of them
01 Electric Vehicle Supplying

Starting with wireless charging, widening to the whole charging infrastructure

It began with a single receive pad and grew into vehicle-mounted parts, transmitters, and a combined wired-and-wireless charging platform. Every technology in the company came out of this segment.

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02 Robotics In development

The nearest market, branching off from electric vehicles

A machine nobody plugs in needs wireless charging. We are shrinking the EV receive module for outdoor mobile robots and AMRs, and extending into the logistics floor the robots move across.

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03 Data Centre In development

The whole power path inside the rack

As the power drawn by a single AI server rose, the power supply became the bottleneck. Starting with the server PSU, we are taking on the power path inside the rack one stage at a time — including backup and buffering.

Read more →
04 Renewable Energy In development

Taking bidirectional conversion toward the grid

The bidirectional AC/DC design built for wireless charging scales up to grid-tied capacity. It starts residential and climbs to commercial and utility scale on the same structure.

Read more →
05 Monitoring Preparing

The layer that reads and controls what we build

As conversion equipment multiplies, something has to read and control it. We start at the equipment edge with RTUs and gateways, and move up to plant-level supervision and control.

Read more →

TRACK RECORD

Proven in the field

Three of our public R&D projects — one completed through field demonstration, two the largest currently running. The full list is under Public R&D.

DEMONSTRATION COMPLETE

Micro EV wireless charging, demonstrated on public roads

In the Gyeongbuk next-generation EV wireless charging regulatory free zone we put a wireless charging system onto an actual road. Chargers were installed on the Gyeongbuk Technopark site and operated with two vehicle types, and the demonstration was completed under severe conditions across all four seasons.

Ministry of SMEs and Startups · joint research institution
Completed
road operation
Four seasons
severe environment
Two vehicles
application verified
Final report filed
project closed
IN DEVELOPMENT

Fast wireless transmitter with operational compatibility

While developing a SAE J2954 fast-class transmitter, we are securing operational compatibility so that slow-charging receivers already on the road charge from the same pad. Bi-Energy is responsible for the transmitter housing and resonant tank, the input and output filter design, and EMC and EMF certification.

Ministry of Trade, Industry and Energy · joint research institution
IN DEVELOPMENT

Ultra-high-density power module for AI servers

We are developing the power supply that goes into an AI data-centre server rack, using SiC, GaN and planar magnetics. Bi-Energy handles the design and fabrication of the AC/DC conversion module and its reliability testing.

Ministry of Trade, Industry and Energy · joint research institution

HISTORY

2021 to today

We began with wired chargers, moved to wireless receivers, then transmitters and vehicle integration, and since 2025 into AI server power and robot charging.

2021

Founded

Incorporated in November, starting out developing wired fast and slow chargers and on-board vehicle components (OBC, LDC).

2022

Entry into public R&D

Five months after founding we were awarded the integrated-rectifier receive pad project, then joined a mobile wired/wireless automatic charging project. We developed a high-voltage wireless charging system.

2023

Demonstration and component reliability

We began micro-EV wireless charging demonstration and production performance evaluation of resonant capacitors, and introduced power modules, a power-bank charger and a V2G bidirectional charger.

2024

First project as lead institution

We ran the performance evaluation of power-bank conversion components as lead institution, joined a wireless power transfer infrastructure programme for large facilities, and developed a micro-EV wireless charger and a bidirectional OBC.

2025

Transmitters and AI power

We started the fast transmitter project and the vehicle interface project for wireless receive modules, and widened into AI server power modules. We signed a technology cooperation agreement with the University of Auckland and supplied distributed fast chargers to a domestic charge point operator.

2026

Robot charging and grid connection

A public project for a shared wireless charging station for outdoor mobile robots and a commercial AMR wireless charging contract began in the same year. We started a project to commercialise a combined wired and wireless charging platform and are developing a grid-tied PCS.

NEWS

Recent activity

Nov 2025

Wireless charging for next-generation EVs and autonomous vehicles shown at KRS 2025

Korea Radio Show · COEX, Seoul

We showed a wireless charger for small electric vehicles and a wired/wireless charger for passenger cars.

Nov 2025

Wireless charging for the autonomous era shown at Battery Asia Show 2025

KINTEX

We exhibited a magnetic-resonance wireless charging system and presented automatic alignment linked to autonomous driving along with progress on OEM demonstration.

Oct 2025

Wired / wireless hybrid EV charger unveiled

Industry News

Presented as a power conversion solution spanning the grid to the vehicle battery, alongside the integrated-rectifier wireless receive pad and on-board vehicle components.

PARTNERS

Relationships built project by project

We have run public R&D projects as a joint research institution inside consortia led by large corporations, and at times as the lead institution ourselves.

Joint research

Six companies that have run public R&D projects with us — in power conversion, vehicle electronics, components, semiconductors and robotics

Universities and institutes

A national university industry-academic foundation, a radio-spectrum promotion agency, and an electronics technology research institute

Fundamental technology

We hold a technology cooperation agreement with an overseas inductive power transfer (IPT) research group and have carried out a technology trends study for them

Demand and verification

A domestic vehicle manufacturer participates as the demand company in verifying the performance of products under development, and a major domestic energy company provides a testbed as a joint research institution

REQUEST MATERIALS

The detail is available on request

This site says what the company does and stops there. Specifications, records and test data are sent on request, put together for what you are evaluating.

Websitewhat the company doesRequested materialspecs · record · architectureUnder NDAdesign & test dataPublicOn requestAfter agreementScope of segments and capabilityProfile · technical notes · datasheetsCircuit architectureProject records · investor materialTest reports
Three levels of disclosure — public, on request, and after an agreement
MaterialForTurnaround
Company profile
Company overview, segments, summary of work delivered		AnyoneSame day
Segment technical notes
Architecture and development scope for whichever of the five segments interests you		Technical staffSame day
Product datasheets
Ratings, dimensions, interfaces, test conditions		Procurement and engineeringWithin 2 business days
Public R&D project records
Scope of work, objectives and achievement status, performance certificates		Consortia and evaluatorsWithin 2 business days
Investor material
Business plan, technology roadmap, financial material		Investment and IRWithin 2 business days
Detailed design and test data
Circuit architecture, analysis results, test reports		Joint developmentUnder NDA

We are looking for people to build with

Tell us what you need and we will send material that fits. Development, supply and joint research enquiries reach us at the same address.

sales@bi-energy.co.kr +82-70-8835-2668 REQUEST MATERIALS →