Engineered for New Zealand Microgrids & Industrial Power

Custom OEM Resonant Converters Factory New Zealand

High-Frequency ZVS/ZCS Topologies, High-Density LLC Power Modules & Turnkey OEM/ODM Electronics Sub-Assemblies

High-Performance Resonant Converters & Energy Systems

Designed for seamless integration into New Zealand's commercial energy infrastructure, utility networks, and heavy industrial automation.

Box Type Substation Outdoor Distribution Transformer

Box Type Substation 10kv 35kv Outdoor Resonant Transformer Unit

Compact prefabricated substation engineered for step-down distribution, grid-tied resonant matching, and rural microgrid isolation.

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Automatic Transfer Switch ATS 100A 2P

Automatic Transfer Switch ATS 100A 2P Dual Power Switching Unit

Fast-response seamless transition switch for backup battery banks, off-grid resonant converter systems, and critical telecom loads.

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51.2V 15Kwh 20KWH 30KWH Lifepo4 Lithium Solar Battery

51.2V 15kWh - 30kWh Industrial LiFePO4 Resonant ESS Battery Bank

Ultra-dense lithium iron phosphate storage array optimized for high-frequency DC-DC resonant converter charge controllers.

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JKESS Diy 51.2V 280Ah 314AH Lifepo4 Battery Box

Modular 51.2V 280Ah / 314Ah OEM Resonant System Battery Enclosure

Heavy-duty DIY server rack battery chassis with pre-wired active balance management for custom OEM converter installations.

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EU STOCK Tax Free LiFePO4 Home Energy Storage Battery

51.2V 30Kwh 600Ah High-Capacity Commercial Battery Pack

Integrated smart BMS lithium battery module for large-scale bidirectionally coupled resonant inverter networks.

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29er Full Suspension Off-Road Electric Vehicle System Chassis

High-Torque Electric Mobility Drive & Compact Resonant Charger Subassembly

Ruggedized off-road dual-suspension power plant integrated with high-efficiency resonant DC motor drive circuits.

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Floor Home Lifepo4 Battery 10kWh 30kWh Wall Mount

Floor-Standing 10kWh - 30kWh Wall-Mount Power Wall Battery

Zero-footprint residential and light industrial storage unit, fully compatible with high-frequency LLC resonant power supplies.

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EEL 16S 48V Stackable LiFePO4 Battery Box with JK BMS

EEL Stackable 48V 200A LCD Modular Battery System for Microgrids

Stackable heavy-duty battery system designed for seamless connection to industrial off-grid LLC and LCC converter topologies.

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98.8%
Peak Resonant Efficiency
500 kHz
Max Switching Frequency
IP67 / NEMA 4X
Maritime Environmental Rating
AS/NZS 3000
Compliance Ready Standards

Optimizing Custom Resonant Converters for the New Zealand Power Infrastructure

New Zealand’s industrial landscape presents a unique matrix of power electronic challenges. With a national grid characterized by long transmission distances, growing reliance on renewable generation (hydro, wind, and geothermal), and strict localized power quality regulations, industrial original equipment manufacturers (OEMs) demand high-performance power conversion sub-assemblies. Custom OEM Resonant Converters—specifically LLC and LCC topologies utilizing Silicon Carbide (SiC) and Gallium Nitride (GaN) switching devices—have emerged as the definitive solution to meet these rigorous demands.

1. High-Frequency Resonant Topologies: LLC vs. LCC Dynamics

Conventional pulse-width modulated (PWM) hard-switched power converters suffer from high switching losses, excessive electromagnetic interference (EMI), and thermal bottlenecks when operated at elevated frequencies. In contrast, our custom OEM resonant converters leverage Zero Voltage Switching (ZVS) and Zero Current Switching (ZCS) dynamics across the entire load spectrum.

For New Zealand system integrators, selecting between LLC and LCC topologies depends heavily on the operational duty cycle:

  • LLC Resonant Converters: Ideal for narrow input voltage bands and fixed DC output requirements (e.g., telecom power units, server power supplies, and battery storage buffer converters). The LLC tank allows the primary MOSFETs to achieve ZVS from zero to full load, dramatically reducing parasitic heat dissipation and footprint requirements.
  • LCC Resonant Converters: Engineered for wide output voltage variation and constant-current applications. LCC topologies are heavily specified in industrial laser drivers, high-voltage ozone generators used in Marlborough aquaculture, and wide-range EV fast-charging stations across North and South Islands.
Information Gain Insight: Thermal Management in Maritime & High-Humidity NZ Environments
Unlike standard off-the-shelf power modules, custom OEM resonant converters supplied to the New Zealand market feature specialized potted planar magnetics and anti-corrosion conformal coatings (IPC-CC-830B compliant). This prevents dielectric breakdown caused by coastal salt-mist in ports like Tauranga and Napier or sulfur hydrogen vapors prevalent in geothermal installations around Rotorua and Taupō.
2. Silicon Carbide (SiC) Integration & Harmonic Mitigation

By substituting traditional Silicon (Si) IGBTs with wide-bandgap (WBG) Silicon Carbide (SiC) MOSFETs within our resonant tank circuits, operational switching speeds scale from 50 kHz up to 500 kHz. This 10x frequency boost yields an immediate reduction in the physical mass of planar transformers and resonant inductors, creating compact power modules ideal for space-constrained OEM equipment enclosures.

Furthermore, New Zealand’s Electricity Authority (EA) and local lines companies (such as Vector, Orion, and Powerco) enforce stringent limits on Total Harmonic Distortion (THD) under AS/NZS 61000.3.6 standards. Our custom resonant converters integrate active power factor correction (PFC) stages operating in continuous conduction mode (CCM), ensuring unity power factor (>0.99) and THD levels below 3% under dynamic load steps.

Topology Feature Conventional Hard-Switched PWM Standard LLC Resonant Supply Custom SiC LLC/LCC Resonant (Our Factory)
Peak Efficiency 88.0% - 91.5% 94.0% - 95.5% 98.2% - 98.8%
Switching Loss Mechanism High (V-I Overlap at turn-on/off) Low (ZVS at turn-on) Near Zero (Optimized ZVS & ZCS)
EMC Output Noise (EMI) Severe High-Frequency Spikes Moderate Sinusoidal Noise Ultra-Low (Natural Sinusoidal Switching)
Power Density 15 - 25 W/in³ 35 - 55 W/in³ 75 - 110 W/in³
Environmental Protection Standard Air Convection Basic Dust Filter Vacuum Hermetic Encapsulation (IP67)

Tailored Engineering Solutions Across Key NZ Industries

From isolated agricultural microgrids in Canterbury to heavy industrial processing in Waikato, custom resonant converters drive modern operational reliability.

Geothermal & Hydro Microgrids

New Zealand’s geothermal power plants (Taupō) and distributed hydro schemes require robust DC-DC auxiliary converters capable of operating amidst high ambient temperatures and electrical surges. Our ZVS resonant converters provide galvanically isolated power conversion with 100kV/μs dV/dt immunity.

Coastal Aquaculture & Processing

Marlborough Sounds and Southland marine harvesting operations rely on automated water filtration, UV sterilizers, and onshore cold chain storage. We manufacture IP67-rated sealed resonant power modules that resist salt corrosion, washdowns, and high humidity.

Commercial EV Fleet Depot Fast-Charging

Auckland and Christchurch urban transit hubs are retrofitting fleet charging stations. Our scalable multi-phase LCC resonant converter stacks enable bidirectionally coupled V2G (Vehicle-to-Grid) power flow, mitigating peak demand tariffs imposed by local lines companies.

Precision Dairy Automation Systems

Rotary milking sheds and precision processing lines require clean DC voltage rails uninterrupted by grid sags. Our custom resonant supplies integrate supercapacitor buffer interfaces to ride through short-duration power dropouts common in rural Canterbury grids.

Telecom & Off-Grid Repeater Stations

Remote wireless repeaters across the Southern Alps demand maximum energy conversion efficiency from solar-battery inputs. Our resonant converters deliver 98%+ efficiency under lightweight, convection-cooled passive thermal architecture.

Green Hydrogen Electrolyzer Power Supplies

New Zealand’s decarbonization roadmap highlights green hydrogen production. Our high-current, low-voltage LCC resonant converters supply ultra-low ripple DC power directly to PEM electrolyzers, maximizing hydrogen output per kilowatt-hour.

Emerging Trends Shaping NZ's OEM Resonant Converter Market

As New Zealand advances toward its Zero Carbon Act 2050 targets, the national energy matrix is undergoing a rapid transition toward total electrification. This transition places unprecedented demands on power conversion efficiency, thermal reliability, and grid compliance:

Widespread Transition to GaN/SiC Semiconductors

Wide-bandgap materials are replacing legacy silicon switches across all high-density OEM converter specifications. By reducing switching losses by up to 80%, design engineers can drastically shrink housing dimensions for embedded industrial machinery.

Mandatory Bidirectional Power Coupling

Future-ready OEM converters supplied to NZ factories now require bidirectional capabilities. This allows energy storage units and EV batteries to inject stored energy back into commercial building distribution systems during grid peak pricing events.

Digital Twin Monitoring & Edge Telemetry

Modern custom resonant converters are integrated with ARM Cortex microcontrollers supporting Modbus TCP, CANbus, and EtherCAT. Real-time monitoring of resonant tank temperature, frequency drift, and capacitor ESR enables predictive maintenance.

Why Leading NZ Engineers Partner With Our Manufacturing Facility

From initial schematic topology simulation to rapid turn prototyping and full production, our end-to-end OEM factory services eliminate supply chain risk.

01. Rapid Custom Prototyping

Our dedicated R&D lab builds and ships fully customized resonant converter sample units within 3 to 9 business days, complete with automated test reports and 3D STEP mechanical models for CAD assembly validation.

02. ISO 9001:2015 & TAA Quality

Every single power converter undergoes 100% full-load thermal burn-in testing, high-voltage isolation flash testing, and automated optical inspection (AOI) before dispatching to New Zealand ports.

03. In-House Planar Magnetics

We custom design and wind planar transformers and resonant inductors in-house. This guarantees tight leakage inductance control—a critical parameter for stable LLC resonance frequency tuning.

Frequently Asked Questions by New Zealand Procurement Teams

Direct answers regarding compliance, shipping lead times, custom engineering, and localized operational performance.

What standards do your custom resonant converters comply with in New Zealand?

Our power supplies are designed and manufactured to satisfy AS/NZS 3000 (Wiring Rules), AS/NZS 61000 series (EMC/Harmonics), IEC 62368-1 (Audio/video, information and communication technology equipment safety), and IEC 61558 (Transformer safety). Specific EMC test certificates and compliance declarations can be provided with custom OEM orders.

What is the typical factory lead time for freight to Auckland or Christchurch?

Prototype samples are manufactured and shipped within 3 to 9 business days via express air freight (DHL/FedEx arriving in NZ within 3-5 days). Batch production orders ship via direct sea freight to major New Zealand ports (Auckland, Tauranga, Lyttelton) with average transit times of 14 to 21 days.

Can your engineering team customize resonant tanks for non-standard DC bus voltages?

Yes. We routinely engineer custom LLC and LCC resonant tanks for non-standard DC inputs (ranging from 24Vdc, 48Vdc, 380Vdc, up to 800Vdc ultra-high voltage buses) and step-up or step-down outputs tailored to your exact application specs.

How do your converters handle high ambient temperatures and high humidity environments?

We offer optional full polyurethane or silicone vacuum encapsulation (potting). This provides an IP67 waterproof/dustproof seal, superb mechanical shock protection, and enhanced thermal conductivity from hot magnetic components directly to the aluminum heatsink enclosure.

What is the warranty coverage on your OEM custom power supplies?

All industrial-grade enclosed metal power supplies and custom resonant converters come backed by a comprehensive 5-year factory replacement warranty, backed by full ISO 9001:2015 quality traceability records.

Ready to Specify Your Custom OEM Resonant Converter?

Connect directly with our senior power electronics engineers. Get parametric design guidance, 3D mechanical models, and a fast custom quote within 24 hours.

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