Isolated 72V/60V/48V to 24V DC Buck Converter
- Topology: Galvanically Isolated
- Input Range: 30V – 90V DC
- Output: 24V DC Controlled
- Enclosure: IP67 Aluminum Die-Cast
Factory-Direct Catalog
High-Efficiency Power Conversion Platforms
Built for system integrators, embedded hardware engineers, and infrastructure developers across the Greater Seattle Area. Fully compliant with CE, RoHS, and FCC engineering standards.
DC-DC 8-35V to 7V 5A Buck Power Module
- Conversion Eff.: Up to 96%
- Current Rating: 5A Continuous
- Protection: OCP, OVP, Short-Circuit
- Packaging: Compact Epoxy Resin
300W Pure Sine Wave Inverter (12V/24V to AC)
- Waveform: THD < 3% Pure Sine
- Input Voltage: 12V / 24V Auto-detect
- Output: 110V AC 60Hz / 220V
- Extra Ports: Dual USB Quick Charge
Isolated Wide-Input 48V-96V to 12V 5A Module
- Isolation: 1500V DC Dielectric
- Input Spectrum: 48V / 72V / 84V / 96V
- Power Rating: 60W Solid Output
- Thermal: Natural Convection Fin
12V/24V to 13.8V 10A Buck-Boost Stabilizer
- Topology: Non-isolated Buck-Boost
- Output: 13.8V DC Fixed Marine Spec
- Peak Current: 10A Continuous
- Case: Waterproof Sealed Alloy
Multi-Voltage Pure Sine Wave Inverter 300W
- DC Compatibility: 12V / 24V / 48V / 72V
- AC Output: 110V/120V US Standard
- Efficiency: > 91% at Nominal Load
- Safety: Soft-Start Logic Built-in
DC 40-135V to 12V 10A Isolated Converter
- Ultra-Wide Input: 40V to 135V DC
- Power Density: 120W Robust Output
- Protection Grade: True IP68 Sealed Enclosure
- Noise Filter: Low EMI Carrier Class
Rotary Phase & Frequency Converter Module
- Input Mains: 110V / 220V 1-Phase
- Synthesized Output: 3-Phase 220V / 380V
- Frequency: 50Hz / 60Hz Variable
- Application: Heavy CNC & Lab Spindles
Engineering Whitepaper
High-Density DC Power Architectures in Contemporary Industrial Applications
Overcoming thermal saturation, ground looping, and harmonic distortion in distributed power systems.
1. The Physics of Galvanic Isolation in Extreme Duty Cycles
In modern industrial electronics, power conditioning cannot be treated merely as a matter of stepping down voltage rails. When operating within complex industrial environments—such as marine electric vessels navigating Puget Sound or automated logistics facilities across Kent Valley—common-mode electrical noise and high potential ground loops represent constant hazards to signal integrity. Galvanic isolation separates input and output circuits using electromagnetic transformer coupling, preventing ground currents from floating across sensitive logic circuits.
Our isolated DC-DC modules leverage planar magnetics coupled with high-frequency switching MOSFETs running at zero-voltage switching (ZVS) topologies. This mitigates dV/dt slew rates, dramatically curtails electromagnetic interference (EMI), and satisfies FCC Class B and EN 55032 emissions standards without imposing substantial bulk on the host assembly.
2. Synchronous Rectification & Thermal Management Strategy
Conventional Schottky diode rectification introduces non-negligible forward voltage drops (0.4V to 0.6V), generating localized thermal hotspots when handling high continuous currents like 40A to 60A. Varnix power supply modules replace passive silicon with low RDS(on) synchronous field-effect transistors. By dynamically throttling conduction channels during the freewheeling phase, our topologies limit internal thermal waste to a fraction of conventional losses, elevating overall efficiency upwards of 96%.
Furthermore, our aluminum die-cast housings are encapsulated using thermal-conductive polyurethane resins. This potting approach delivers dual advantages: heat is uniformly conducted away from magnetics toward external heat sink fins, while vital electronic components achieve IP67/IP68 ingress protection against high-humidity PNW climates and salt-fog exposures.
| Converter Architecture | Typical Input Range | Output Stability | Isolation Rating | Ideal Regional Application |
|---|---|---|---|---|
| Buck-Boost Regulator | 9V – 36V DC | ±1.0% VDC | Non-Isolated (Common Ground) | Electric Commercial Vehicle Auxiliaries |
| High-Voltage Isolated Buck | 40V – 135V DC | ±0.5% VDC | 1500V DC Galvanic Barrier | Marine Hybrid Power Plants & Rail |
| Pure Sine Wave Inverter | 12V / 24V / 48V DC | THD < 2.5% Pure Sine | Optical & Transformer Isolation | Telecom Backhaul & Field Medical Rigs |
| Telecom Rectifier Unit | 85V – 265V AC | 48V / 54V Float Auto | 3000V AC Input-Output | Cloud Edge Centers & Cellular Micro-Sites |
Regional Focus
Tailored Engineering for Seattle & Puget Sound Sectors
Supplying robust OEM power solutions designed specifically around Washington's technology drivers.
Puget Sound Maritime & Ferry Modernization
The maritime corridor from Elliott Bay to the San Juan Islands is undergoing extensive fleet electrification. Varnix IP68 waterproof converters and 13.8V marine battery voltage stabilizers provide continuous auxiliary power for sonar, onboard telemetry, and radar systems resistant to salt-water corrosion.
Hyperscale Cloud & Edge Data Nodes
With major tech giants clustering across Seattle, Redmond, and Bellevue, edge data cabinets require high-density 48VDC embedded rectifier systems. Our rack-mounted conversion modules ensure zero-latency failover and battery backup conditioning with 98.2% operating reliability.
Commercial Clean-Fleet Electrification
Washington's clean transport mandates drive delivery fleets to adopt medium-duty EVs. Our 72V/60V/48V to 24V/12V step-down units convert traction pack energy into clean, regulated low-voltage rails for telematics, lift-gates, and Starlink vehicle links.
Factory Auditing
Verified OEM/ODM Production Capacity
1,229 m² facility verified on-site by SGS Group. Real-world insights into our end-to-end manufacturing flow.
Traceable Raw Material Intake
Automated SMT & Wave Soldering
100% Full-Load Burn-In Racks
Waveform & EMI Validation
Need Custom Electrical Parameters or Housing Profiles?
From initial schematic modeling to rapid 3D prototyping and production tooling, Varnix engineers deliver custom voltage ranges, proprietary form-factors, and custom private-label branding for OEMs across North America.
Macro Environment
Emerging Power Supply Architecture Trends in Washington State
Analyzing the shift in technical demands within the Pacific Northwest engineering sector.
Migration to 48V Distribution Architectures
Driven by energy-saving regulations and hyper-dense compute loads, robotics and AI edge systems are moving from traditional 12V backplanes to 48V distribution. Varnix buck regulators directly facilitate point-of-load step-down conversion with negligible I²R distribution losses.
Strict Harmonic Regulations in Hybrid Grids
Microgrid deployments in rural Washington necessitate clean AC outputs to avoid corrupting delicate sensing electronics. Our pure sine wave converters produce lower than 2.5% total harmonic distortion (THD), preserving generator efficiency and meeting strict utility compliance.
Local US Warehousing for Supply Security
Supply chain resilience remains paramount for aerospace contractors and tier-1 integrators around Everett and Renton. To eliminate long overseas transit lags, Varnix maintains fast-moving DC-DC converters in domestic US fulfillment warehouses for immediate dispatch.
Procurement Guidance
Frequently Asked Questions by Seattle Engineering Buyers
Addressing essential technical criteria, regulatory certifications, and factory trade terms.
Does Varnix support customized input/output voltages for OEM batches?
Yes. As an authentic manufacturer founded in 2003, we manage in-house R&D and toolmaking. We routinely adapt converter voltage thresholds (e.g., custom 36V, 72V, 96V to 13.8V or 5V rails), configure specific over-current limits, modify PCB layout dimensions, and apply private labeling or custom anodized enclosures for qualifying volume orders.
What certifications are provided for market access in the United States?
Our product platforms are fully certified against CE, RoHS, and FCC part 15 Class B emissions. Test documentation and Declarations of Conformity (DoC) can be supplied alongside production lots to facilitate seamless passage through US Customs and local regulatory audits.
How are shipments managed to Seattle, Tacoma, and Greater Washington?
We provide full DDP (Delivered Duty Paid), FOB, or CIF international terms with air-express routes to Sea-Tac Airport (3-5 days delivery) and container freight directly via the Port of Seattle. Furthermore, selected fast-moving DC-DC units are stocked locally in our US overseas warehouse for rapid 48-hour land dispatch.
What is your quality verification and warranty policy?
Every single power unit undergoes our stringent five-stage manufacturing verification: Incoming Materials Inspection (IQC), SMD / Wave Soldering QC, In-Circuit Functional Testing, 100% Full-Load High-Temperature Burn-In, and Final Waveform / Insulation Breakdown Testing. All equipment is protected by formal contract warranties, supported 24/7 by dedicated application engineers.
What is the minimum order quantity (MOQ) for prototypes vs. production runs?
Standard catalog modules feature an accessible MOQ of 1 to 5 units to support hardware developers through testing and bench validation. Tailored OEM/ODM designs requiring custom magnetics, tailored circuit boards, or distinct mechanical castings are quoted on transparent project milestones.
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