Engineered for high common-mode transient rejection, continuous high-temperature duty cycles, and uncompromising electromagnetic compatibility in Vietnamese industrial environments. Directly deployable in factory automation, commercial transportation, telecom DC plants, and off-grid solar infrastructure.
In high-density industrial clusters across Ho Chi Minh City, Thu Duc City, and neighboring Binh Duong and Dong Nai provinces, power quality is compromised by massive inductive switching loads, lightning-induced common-mode spikes, and neutral-to-ground floating potential shifts. Precision isolation transformers and high-frequency galvanically isolated conversion units represent the critical line of defense for mission-critical automation.
Southern Vietnam’s monsoon season creates continuous high-energy transient spikes and lightning surges across distribution feeder networks. Our isolation systems utilize electrostatic Faraday shields interposed between primary and secondary copper windings, establishing a low-impedance ground shunt that yields common-mode noise rejection exceeding 120 dB at 100 kHz to 10 MHz.
Faraday Shield CMRR > 120 dBFactory automation networks spanning multiple buildings in industrial parks like Tan Thuan EPZ or Linh Trung often suffer from earth ground potential variances. By galvanically breaking the galvanic conductive path between input and output, our transformers decouple sensitive PLC, SCADA, and DCS systems, eliminating ground-loop circulating currents and phantom sensor signal faults.
Galvanic Floating Barrier > 2.5kV ACNon-linear switching power supplies, variable frequency drives (VFDs), and electroplating rectifiers generate heavy 3rd, 9th, and 15th (triplen) harmonic currents that overheat standard neutral conductors. Our custom OEM delta-wye (Δ-Y) isolation topologies trap triplen zero-sequence harmonic currents within primary delta circulating paths, preventing upstream distribution transformer thermal degradation.
K-Factor K-13 to K-20 Certified CoresFrom automated semiconductor cleanrooms in Saigon Hi-Tech Park to 24/7 container logistics along the Dong Nai River, our isolation conversion units are tailored to withstand severe humidity, elevated thermal profiles, and unconditioned industrial feeder lines.
High-yield silicon wafer handling, SMT pick-and-place lines, and optical inspection equipment require zero micro-arcing and ultra-clean isolated ground references. Our low-leakage transformers provide complete common-mode isolation, suppressing high-frequency interference induced by neighboring heavy fab facilities.
Container handling machinery operates continuously under intense saline coastal winds, diesel-electric voltage surges, and severe mechanical vibration. Our potted IP67/IP68 DC-DC isolated converters step down high vehicle battery voltages (48V to 96V) to power telematics, LiDAR safety sensors, and onboard computing.
Chemical processing and metal surface treatment demand constant current switching power supplies and high-current galvanic isolation to prevent electrolytic back-feed and catastrophic cathode grounding faults. Our rectifiers and isolation modules support currents up to 1,000A with continuous water/forced-air cooling.
Understanding the tectonic shifts in Vietnam’s power infrastructure and how our OEM/ODM manufacturing roadmap directly aligns with Southern Vietnam’s 2025–2030 smart grid and manufacturing initiatives.
With Vietnam's Power Development Plan VIII accelerating industrial rooftop solar integration across Dong Nai and Binh Duong export manufacturing zones, bidirectional grid feed introduces severe voltage swings and harmonic distortion into factory distribution buses. Galvanically isolated hybrid inverters with built-in MPPT and anti-islanding toroidal transformers ensure compliant off-grid and self-consumption power security without tripping sensitive industrial machinery.
Ho Chi Minh City’s municipal decree to electrify port transit, public bus fleets, and intracity delivery vehicles has driven huge demand for wide-input isolated DC-DC converters (48V, 72V, 84V, 96V to 12V/24V). These units step down fluctuating traction battery voltages while galvanically isolating sensitive CAN-bus controllers, emergency lighting, and GPS telematics from high-voltage DC motor back-EMF spikes.
Year-round temperatures hovering between 30°C and 38°C paired with relative humidity exceeding 90% during the HCMC rainy season present intense electrochemical migration and thermal throttling risks for standard European or domestic Chinese hardware. Our OEM manufacturing integrates Class H (180°C) copper magnet wire, double vacuum pressure impregnation (VPI), and polyurethane potted enclosures to ensure zero fungus and zero insulation breakdown.
Founded in 2003, Varnix Technology Co., Ltd. has spent over two decades engineering and manufacturing high-frequency switching power electronics, galvanic isolation transformers, rectifiers, and custom power conversion units. We bypass trading intermediaries, providing Ho Chi Minh City buyers with direct factory pricing, flexible engineering customization, and verifiable quality certifications.
Our SGS-audited 1,229 m² manufacturing facility houses 10+ dedicated production lines equipped with automated CNC coil winding machines, precision core stacking rigs, vacuum pressure impregnation chambers, and multi-channel high-temperature burn-in bays. Over 51% to 60% of our production is exported worldwide, underpinned by a rigorous quality architecture that guarantees zero field-defects.
Compare core electrical topologies, dielectric breakdown isolation levels, input/output voltage configurations, and recommended operating environments for projects deployed across Southern Vietnam.
| Series & Product Model | Isolation Topology | Input Voltage Spectrum | Output Voltage / Current | Dielectric Withstand | Thermal & IP Protection | Prime HCMC Industrial Use |
|---|---|---|---|---|---|---|
| Isolated DC-DC Buck Series | High-Frequency Flyback / Forward | 36V - 90V DC Wide Range | 24V DC (±1%) / 10A - 25A | 1,500V AC / 1 min | Class H / IP67 Potted | SHTP Automation, Robotics, DCS Power |
| YUCOO Heavy Boost-Buck | Non-Isolated / Semi-Floating | 9V - 34V DC Automotive | 12V DC / 35A - 40A Ultra-Stable | 500V DC Frame Ground | IP68 Aluminum Fins | Port Container Trucks & Heavy Fleet |
| Pure Sine Wave Inverter 3kW | Toroidal Low-Loss Isolation Stage | 12V / 24V / 48V DC Battery Bus | 220V AC ±3% 50Hz True Sine | 2,500V AC Input-Output | Thermostatic Forced Air | Microgrids, Offshore Marine, Solar Plants |
| Wide High-Voltage Converter | Optocoupled Galvanic Bridge | 48V, 60V, 72V, 84V, 96V DC | 24V DC / 2.5A Regulated | 2,000V AC Dielectric | Flame-Retardant Epoxy Potted | Electric Forklifts, AGVs, Cat Lai Logistics |
| High-Current Plating Rectifiers | Full-Bridge IGBT + Ferrite Transformer | 220V AC / 380V AC Three-Phase | 0-12V / 0-24V DC up to 1,000A | 3,000V AC Primary-Sec | Anti-Corrosion Conformal | Binh Chieu & Tan Thuan Anodizing Lines |
| 500W High-Amp Charger Unit | Resonant LLC High-Frequency Isolated | 48V, 60V, 72V, 90V DC Input | 12V DC / 42A High Density | 2,500V AC Primary-Sec | Cast Aluminum Shell IP65 | Fleet DC Fast Charging & Ground Support |
Addressing commercial tariffs, customs clearance at Cat Lai Port, EVN grid synchronization, and environmental hardening for international and local procurement managers.