Engineered for low switching losses, maximum power density, and seamless integration into German industrial grids, commercial EV fleets, and high-power charging networks.
In modern power conversion—spanning electric vehicle DC fast charging, industrial power supplies, automated logistics (AGVs), and heavy automotive manufacturing—efficiency and thermal behavior dictate success. Resonant converter topology stands at the technical peak of high-power DC switching.
As Germany accelerates its transition toward 800V/900V e-mobility powertrains and automated smart manufacturing under Industry 4.0, conventional hard-switched PWM (Pulse Width Modulation) converters are reaching their physical limits. Hard switching induces severe electromagnetic interference (EMI), elevated switching losses, and excessive thermal stress at higher frequencies.
By leveraging LLC and bidirectional CLLC resonant tank circuits combined with Silicon Carbide (SiC) MOSFETs, our power converters achieve Zero Voltage Switching (ZVS) across the primary switches and Zero Current Switching (ZCS) on the secondary rectifiers. This soft-switching paradigm drops total switching dissipation by over 70%, allowing operating frequencies to exceed 150kHz-300kHz while delivering conversion efficiencies up to 97.8%.
A comparative engineering evaluation illustrating why resonant power architectures are mandated for German B2B OEMs and high-power infrastructure projects.
| Electrical Parameter | Hard-Switched PWM (Legacy) | Resonant LLC Converter | Bidirectional Resonant CLLC (SiC) |
|---|---|---|---|
| Primary Switching Mechanism | Hard Switching (High Stress) | ZVS (Zero Voltage Switching) | ZVS across full load range |
| Secondary Rectification | Diode Reverse Recovery Losses | ZCS (Zero Current Switching) | Synchronous ZVS/ZCS Rectification |
| Peak Efficiency Range | 91.0% - 93.5% | 96.0% - 97.2% | 97.2% - 98.1% |
| Electromagnetic Noise (EMI) | High (Requires Heavy Filtering) | Low (Sinusoidal Current Wave) | Ultra-Low (Easier CISPR 25 / EN 55011) |
| Power Density (kW/L) | 1.2 - 2.0 kW/L | 3.5 - 5.0 kW/L | 6.0 - 8.5 kW/L |
| Bi-Directional Power Flow (V2G) | Complex / Separate Topology | Unidirectional Primary Focus | Native Symmetric Bi-directional (Grid-to-Vehicle / V2G) |
Our wholesale resonant converter modules and custom power systems integrate into demanding German engineering environments, complying strictly with European industrial safety norms.
German OEM vehicle assembly plants require continuous, rock-solid DC power for battery buffering and End-Of-Line (EOL) electrical testing. Our contact-cooled resonant DC/DC converters and charging computers deliver stable DC current under noisy electrical plant conditions with DC-Connect data traceability.
From Autobahn charging hubs to fleet logistics depots in Bavaria and North Rhine-Westphalia, our 30kW-240kW DC fast charging stations use modular LLC resonant converters. Fully compliant with DIN EN 61851-23 and ISO 15118, supporting CCS2 and OCPP 1.6J/2.0.1 integrations.
Automated Guided Vehicles (AGVs) and warehouse logistics systems operate on 24/7 duty cycles. Fully potted, vibration-proof resonant power converters and DIN-rail power supplies withstand harsh humidity, dust, and continuous mechanical shock in German logistics hubs.
As German industrial facilities deploy solar PV and battery energy storage systems (BESS) under strict grid codes (VDE-AR-N 4110), our high-voltage resonant DC/DC converters facilitate low-loss power transfer between high-voltage battery banks and local DC buses.
Off-highway equipment, electric buses, and rail transport vehicles require compact, contact-cooled converters. With galvanic isolation and CANbus / SAE J1939 telemetry, our converters ensure reliable auxiliary power for 24V/12V onboard systems from up to 900V DC lines.
Driven by resonant DC bus conditioning, our companion D-Sinus speed controllers regulate industrial motors with pure sine-wave currents, eliminating high-frequency acoustic noise and torque ripple in sensitive workshop environments.
Importing power electronics into Germany demands rigorous adherence to EU Directives, electromagnetic compatibility standards, and grid compliance protocols.
The German market enforces some of the world's most stringent electrical safety standards. Power equipment must pass comprehensive testing according to DIN EN 61851-1/-23 for electric vehicle conductive charging systems, as well as EN 61000-6-2/4 for industrial immunity and emissions.
Furthermore, stationary chargers and energy storage systems tied to medium or low-voltage grids must respect VDE-AR-N 4110 grid code synchronization. Our wholesale resonant converter platforms integrate active Power Factor Correction (PFC > 0.99) and low THD (< 3.5%) to guarantee hassle-free grid connection across all German federal states.
Leading German automotive OEMs are shifting rapidly from traditional 400V battery buses to high-voltage 800V/900V platforms to enable ultra-fast charging under 20 minutes. Legacy silicon IGBT converters generate unacceptable heat losses at these voltage levels.
Our direct OEM supply channels deliver wide-bandgap Silicon Carbide (SiC) resonant converters. Operating at 800V nominal inputs, these modules reduce thermal footprints, allow passive or contact-cooling designs, and lower overall cabinet volume by up to 45%.
Combining German engineering precision principles with high-capacity, cost-effective wholesale production in China. Full in-house control from initial circuit topology R&D to automated PCB assembly and final environmental testing.
We are a technology and market leader in heavy-duty automotive battery charging. Our resonant charging systems power vehicles across their full manufacturing life cycle—from assembly line flash programming and end-of-line testing to showroom trickle maintenance.
Our DVCx3 and DVCHx3 resonant converter families feature flat planar magnetics and contact-cooled aluminum cold-plate chassis. By eliminating internal fans or fragile liquid cooling hoses, we deliver unmatched reliability in harsh mobile environments.
Engineered for decentralized power distribution in complex production facilities and logistics hubs. Fully potted IP65/IP67 enclosures protect sensitive resonant power components against dust, moisture, and aggressive atmospheric gases.
Beyond power supplies, we design custom automated test stations. Combining top-tier measuring instrumentation with our proprietary DTS (Deutronic Test System) software suite, we deliver turn-key EOL testing solutions for complex electrical assemblies.
Our system supplier capabilities cover the entire value chain. We develop and manufacture custom printed circuit boards in THT (Through-Hole Technology) and SMD (Surface-Mount Device) assembly, mechatronic modules, and ready-to-sell finished devices.
Addressing compliance, custom engineering, lead times, and technical integration for German engineering teams and purchasing directors.
Our resonant converter platforms are split into low-voltage and high-voltage families. Standard DVCx3 series cover 12V/24V/48V battery systems, while the high-voltage DVCHx3 series operates across 200V DC up to 900V DC inputs. All high-voltage units feature soft-switching LLC/CLLC topologies and CANbus parameterization.
Yes. All chargers and power modules export-bound for Germany carry full CE compliance and conform to DIN EN 61851-1, DIN EN 61851-23, and EN 61000 industrial EMC standards. Systems connecting to low-voltage public grids include low THD filter stages compliant with VDE grid rules.
Absolutely. Because PCB design, firmware development, mechanical housing design, and testing are handled in-house, we readily offer hardware and software adaptations (e.g., custom CAN matrix, specialized connector pinouts, or modified voltage profiles) even for medium or small production runs.
Contact-cooled modules transfer heat directly through an aluminum baseplate mounted to an external chassis or liquid cold plate. This fanless design eliminates moving mechanical parts, prevents dust/moisture ingress into the circuit chamber, and enables IP65/IP67 sealing ideal for harsh German automotive plants.
Our systems natively support standard CAN 2.0B, CANopen, SAE J1939, and Modbus TCP/RS485. Charging stations and production power supplies also feature DC-Connect network interfaces for central monitoring, telemetry logging, and automated ERP diagnostic reports.
Standard OEM converter modules ship within 2 to 4 weeks. Custom modified series typically require 6 to 8 weeks depending on tooling and component sourcing. We provide DDP (Delivered Duty Paid) shipping to German destinations, handling customs clearing and EU import documentation directly.
Send us your technical specification—input/output voltage, power rating, cooling method, and targeted annual volumes—and our application engineers will deliver a tailored quotation within 24 hours.