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ISO 9001 Certified Manufacturer Exporting to 4 Continents
Direct OEM/ODM Industrial Power Solutions

China Wholesale Programmable DC Switching Power Supply Manufacturer & Factories Serving Portugal

Precision-engineered switch-mode DC power supplies, heavy-duty electroplating rectifiers, and high-frequency conversion architectures custom-built for Portugal's expanding automotive, aerospace, naval, and green hydrogen infrastructure.

13+
Years Engineering Expertise
3,000 m²
Self-Owned Factory Floor
15,000 A
Max Continuous Current Capacity
100%
Full-Load Burn-In Tested
Engineered Configurations

High-Performance DC Switching Supplies & Rectifiers

From modular 1.5 kW automated test bench supplies to 300 kW water-cooled electrolysis rectifiers, explore our premier hardware built to CE, EMC, and LVD standards for industrial deployment across Portugal.

Water-Cooled 12V 15V 5000A 6000A 75KW Water Cooled High Frequency Electroplating Rectifier

12V 15V 5000A-6000A 75KW Water-Cooled Rectifier

  • Topology: IGBT Switch-Mode
  • Output: 12V/15V | 5000A/6000A
  • Cooling: Deionized Closed Loop
  • Interface: RS485 / Modbus RTU
EV Testing 800V 400V 50A 20KW High Voltage Adjustable DC Power Supply

800V 50A 20kW Programmable HV DC Source

  • Output Range: 0–800V | 0–50A
  • Ripple (Vrms): ≤ 0.1% Full Scale
  • Slew Rate: Programmable Rise/Fall
  • Target: Automotive & EV Inverters
High Power 12V 4000A 48KW High Frequency Electroplating Rectifier

12V 4000A 48kW Industrial Plating Rectifier

  • Efficiency: ≥ 90% Typical
  • Control Modes: CV / CC Auto-Cross
  • Protection: OCP, OVP, OTP, Phase Lost
  • Duty Cycle: Continuous 24/7
Heavy-Duty 300kW 20V 15000A Water-Cooled Electrolysis Rectifier

300kW 20V 15,000A Electrolysis Rectifier

  • Current Rating: 0–15,000A Continuous
  • Input Line: 380V / 400V / 415V AC
  • Cooling: Pure Water Forced Cooling
  • Enclosure: IP54 Sealed Cabinet
Polarity Reversing 48V 625A 30KW Programmable Auto Polarity Reversing DC Power Supply

48V 625A 30kW Polarity Reversing Supply

  • Reversal Speed: Electronic Solid-State
  • Timer Channels: 4-Segment Forward/Reverse
  • Application: Descaling, Effluent Clean
  • Remote Control: 0-10V / 4-20mA Analog
High Voltage High Voltage Test Power Supply 90KW-120KW 2000V

90kW-120kW 2000V Programmable Test Source

  • Voltage Ceiling: 0–2000V Adjustable
  • Switching: High Frequency Resonant
  • Digital Resolution: 16-bit DAC Precision
  • Target: Renewable & Inverter R&D
Laboratory 1500W to 5000W Programmable DC Switching Power Supply

1.5kW-5kW Benchtop Programmable DC Supply

  • Form Factor: 19" Rackmount / Bench
  • Regulation: Line < 0.05%, Load < 0.1%
  • Display: High-Resolution V/A LCD
  • Certifications: CE, EMC Directive, RoHS
Aviation GSE Portable 28.5V AC-DC Ground Power Unit GPU

Portable 28.5V DC Aircraft Ground Power Unit

  • Output: 28.5V DC (100A–600A Peak)
  • Application: Turboprop & Rotary Avionics
  • Mobility: Reinforced All-Terrain Wheels
  • Safety: Over/Under Voltage Interlocks
Contextual Engineering

Localized Applications Across Portugal's Industrial Corridors

Portugal’s industrial landscape pairs traditional manufacturing strength with aggressive investments in renewable transitions, sustainable mobility, and aerospace. Our DC switching power supplies solve rigorous electrical requirements across key Portuguese industrial hubs.

Automotive Tier-1 & EV Component Testing

Concentrated in Setúbal (near AutoEuropa), Aveiro, and Braga, tier-1 suppliers build wire harnesses, DC-DC converters, traction inverters, and battery packs. Our programmable 400V–800V DC power supplies simulate dynamic battery discharge cycles, low-impedance transient dips, and continuous high-temperature aging test environments.

Hard Chrome & Surface Treatment for Molds

In Marinha Grande and Oliveira de Azeméis, world-leading plastic tooling and metal injection moldmakers require defect-free coatings. Fenvix 12V/15V high-frequency plating rectifiers provide ultra-low current ripple (≤ 2%), preventing micro-cracking and guaranteeing uniform deposit thickness on complex mold geometries.

Aerospace GSE & Defense Aviation Overhaul

Operating near Alverca (OGMA hub), Beja Airbase, and TAP maintenance hangars in Lisbon, technicians require reliable 28.5V DC and 400Hz static ground power units (GPUs). Our solid-state switch-mode GPU units deliver stable avionics power without toxic engine exhaust or excessive noise inside maintenance facilities.

Naval Cathodic Protection & Water Treatment

From the Port of Sines to Viana do Castelo shipyards and industrial pulp treatment plants in Figueira da Foz, extreme corrosion demands tough electronics. Our IP54 water-cooled and auto-polarity-reversing DC power supplies manage impressed current cathodic protection (ICCP) and electrochemical effluent purification seamlessly.

Market Dynamics

Macro Industrial Shifts Transforming Power Demand in Portugal

Portugal’s industrial energy landscape is experiencing rapid modernization driven by EU decarbonization funding, re-shoring of advanced manufacturing, and strategic investments in clean tech.

Green Hydrogen Hub: Sines

Decarbonized Electrolyzer Infrastructure

The Port of Sines is evolving into Europe’s premier green hydrogen export hub. Industrial-scale PEM and alkaline electrolyzers demand high-power-density, high-efficiency DC power supplies capable of operating continuously under harsh maritime atmospheric conditions while maintaining strict power quality on the local medium-voltage grid.

Portugal 2030 & PRR Directives

Electrification & Industrial Decarbonization

Backed by the Recovery and Resilience Plan (PRR), Portuguese metalworking and automotive factories are phasing out inefficient silicon controlled rectifiers (SCR/thyristors). High-frequency IGBT switching supplies with power factors > 0.95 and low total harmonic distortion (THD) are rapidly becoming compulsory to meet tight energy benchmarks.

Semiconductor & Electronics Expansion

ATE Automation & Digital Integration

From Porto’s tech corridor to southern electronics fabrication clusters, automated test equipment (ATE) requires power units featuring SCPI programming, Modbus-TCP, and Profinet connectivity. Precision programmable DC supplies with rapid rise times and microsecond transient recovery ensure maximum line throughput and uncompromised measurement accuracy.

Engineering Whitepaper Analysis

High-Frequency Switch-Mode (SMPS) vs. Legacy SCR Rectifiers

A rigorous comparative review for Portuguese procurement managers evaluating total cost of ownership (TCO), electrical efficiency, footprint, and maintenance overhead.

Performance Parameter Fenvix High-Frequency IGBT SMPS Conventional Thyristor (SCR) Units Operational Value for Portuguese Facilities
Conversion Efficiency 89% – 93% across varied loads 68% – 76% (drops at partial load) Cuts plant electrical utility bills significantly in EDP-metered zones.
Output Ripple (ΔV / ΔI) ≤ 1% – 2% RMS standard (ultra-smooth) 5% – 10% requiring massive inductors Eliminates micro-cracks and rough crystallization in electroplating and anodizing.
Cabinet Footprint & Weight 1/3 the volume; 1/4 the physical weight Heavy, floor-anchored steel transformers Frees up valuable shop floor space in space-constrained urban production bays.
Digital & Fieldbus Control Native RS485, Modbus, 0-10V, 4-20mA, CAN Predominantly manual pots or crude analog Seamlessly ties into modern Industry 4.0 plant SCADA and PLC networks.
Dynamic Response Speed < 5 ms recovery from 10% to 90% load > 50–100 ms phase delay latency Critical protection for sensitive semiconductor burn-in and EV components.
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Enterprise Strength

Why Portuguese Engineers Source Directly from Guangdong Fenvix

Founded in 2013 in Guangzhou, Guangdong, China, Guangdong Fenvix Technology Co., Ltd. is not an export trading broker. We are an ISO 9001 registered, TÜV Rheinland on-site verified production facility dedicated to non-standard electrical manufacturing.

Full In-House Metal Fabrication

We do not outsource sheet metal or busbar fabrication. Our workshop operates internal shearing, CNC punching, milling, drilling, and copper busbar bending equipment. This ensures strict mechanical tolerance, optimal cooling pathways, and controlled production schedules.

No Minimum Order Quantity (MOQ: 1)

Whether you require a single 30kV capacitor charger for a research prototype at Instituto Superior Técnico or a synchronized batch of 12V 8000A plating units for a major surface finisher in Porto, we support single-unit custom designs with equal dedication.

CE, RoHS, LVD & EMC Compliance

Our power supplies are designed and validated to meet strict European Low Voltage (LVD 2014/35/EU) and Electromagnetic Compatibility (EMC 2014/30/EU) directives, ensuring seamless compliance when inspected at Portuguese ports or integrated into CE-marked machinery.

Comprehensive Pre-Shipment Burn-In

Every unit leaving our plant undergoes full-load resistive testing, digital oscilloscope ripple verification, thermal imaging inspection, and high-voltage dielectric isolation checks to guarantee complete out-of-the-box reliability.

Verified Workshop & Quality Inspection Facilities

Procurement Clarity

Frequently Asked Questions by Portuguese Engineering Buyers

Addressing the specific regulatory, logistical, and technical concerns of Portuguese plant engineers, automation managers, and procurement officers.

Q1: How do your power supplies interface with Portugal’s electrical grid standard?

Our standard three-phase industrial DC power supplies and rectifiers are engineered for Europe’s standardized low-voltage network: 400V AC (±10%), 3-phase, 50 Hz, compatible with 230V single-phase systems. Units feature internal soft-start circuitry, surge protection, and high-efficiency filtering that conforms smoothly to EDP grid connection standards without tripping upstream distribution breakers.

Q2: What shipping terms and delivery channels are available to Portuguese ports?

We regularly quote FOB, CIF (Porto / Leixões and Lisbon / Setúbal), and DDP (Delivered Duty Paid) directly to your warehouse facility. For urgent prototype or replacement requirements, we arrange express air freight (DHL, FedEx, UPS) to Lisbon Humberto Delgado Airport (LIS) or Francisco Sá Carneiro Airport in Porto (OPO).

Q3: Can the units be integrated into automated Siemens or Beckhoff control architectures?

Yes. Our programmable DC sources provide isolated analog control (0-5V, 0-10V, 4-20mA) and RS485 communication protocols utilizing standard Modbus RTU / SCPI instruction sets. We can also integrate optional gateways for Profinet, Ethernet/IP, or CANopen, enabling direct integration into industrial PLC architectures widely utilized across Portuguese automotive and automation plants.

Q4: How does Fenvix handle customs clearance, EU VAT, and CE declaration paperwork?

Every commercial export consignment is dispatched with a complete technical documentation bundle: European CE Declaration of Conformity (covering LVD and EMC), commercial invoice, bill of lading/airway bill, and packing list clearly detailing HS Codes (e.g., 8504.40 for static converters). If DDP terms are requested, our logistics partners manage Portuguese customs clearance (Autoridade Tributária e Aduaneira) directly.

Q5: What warranty coverage and technical after-sales support do you provide overseas?

We provide a comprehensive 12 to 24-month replacement parts warranty. Because our systems use modular power block topologies (swappable IGBT power modules, driver boards, and control cards), troubleshooting is fast. Our bilingual engineering team provides real-time diagnostic support via video conference and email, providing circuit schematics and expedited replacement modules if needed.

Q6: When should a Portuguese factory select pure water cooling over air cooling?

For high-current applications exceeding 3,000A or operating in chemically corrosive atmospheres (such as chrome electroplating, acid pickling, or marine saltwater environments in Aveiro and Setúbal), closed-loop water cooling is strongly recommended. Water-cooled enclosures are sealed against airborne corrosive mist, run virtually silent, and eliminate premature heat-sink oxidation.

Require a Custom DC Switching Supply or Heavy-Duty Rectifier?

Submit your electrical load specifications (rated input voltage, target DC output range, current ripple threshold, preferred cooling, and fieldbus communication requirements). Our senior power supply engineers will deliver a customized technical proposal and direct factory quotation within 24 hours.

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