Smart 36V Lithium Battery Charger DC 12V to 43.8V 13A
- Topology: DC-DC Step-Down / CC-CV
- Input Voltage: 12V DC / Wide Range
- Output: 43.8V · 13A Max
- Protection: IP68 Potted / CE Certified
Direct Factory Engineering
Precision DC-DC Buck Converters & Step-Down Chargers
Engineered to meet European CE/EMC directives and Swiss industrial specifications. Featuring wide input voltage margins, ultra-low switching noise, and heavy-duty thermal dissipation.
24V to 12V 85A/100A Heavy Duty Buck Converter
- Topology: Synchronous Buck
- Input Voltage: 18V – 35V DC
- Output Current: 85A – 100A Continuous
- Efficiency: Up to 96.5%
48V to 24V 40A 1000W High Conversion Buck
- Topology: Synchronous Step-Down
- Nominal In: 48V (30V–60V Window)
- Output: 24V DC ±1.0% · 40A
- Cooling: Extruded Heatsink Fin
30-60V to 12V 50A/60A Synchronous Regulator
- Input Range: 30V – 60V DC
- Output: 12V DC · 50A / 60A (720W)
- Ripple & Noise: < 40mVp-p
- Housing: Die-Cast Aluminum IP67
30-90V to 24V 10A/20A E-Mobility Buck Module
- Input Margin: 30V – 90V DC (36/48/72V)
- Output: 24V DC · 10A / 20A
- Thermal Range: -40°C to +85°C
- Compliance: EN 61000-6-2/3
18-90V to 12V 5A/10A Ultra-Wide Step-Down
- Input Voltage: 18V – 90V Continuous
- Output: 12V DC · 5A or 10A Option
- Quiescent Current: < 8mA Standby
- Standard: RoHS / CE Compliant
Isolated Buck Converter 36-75V to 24V 5A
- Isolation: 1500V DC Galvanic
- Input Window: 36V – 75V DC (48V Telecom)
- Output: 24V · 5A (120W)
- Application: Control Cabinets / PLC
1500W High-Power Digitally Controlled Converter
- Input Range: 10V – 60V DC
- Configurable Out: 12V / 24V / 28V / 48V
- Digital Bus: RS485 / Modbus RTU
- Full Load Surge: Up to 1500W Peak
Engineering Whitepaper
High-Efficiency DC-DC Step-Down Architecture Built for Swiss Precision
Zurich stands at the crossroads of European high-tech industrial manufacturing, autonomous robotics research centered around ETH Zurich, and next-generation cleantech solutions. For hardware designers and systems integrators in the Canton of Zurich, a DC-DC buck converter is far more than a basic voltage-dropping component; it is the cornerstone of energy efficiency, electromagnetic quietness, and overall system dependability.
Traditional buck conversion circuits suffer from switching losses across internal freewheeling diodes, dissipating excess energy as waste heat. Shenzhen Eltrum Electronic Co., Ltd. resolves this design bottleneck by utilizing synchronous rectification topologies featuring ultra-low RDS(on) N-channel power MOSFETs coupled with high-frequency magnetic choke cores. This architecture yields typical conversion efficiencies between 94% and 97%, eliminating the requirement for active forced-air cooling fans.
In high-reliability industrial automation panels and enclosed field electronics throughout the Greater Zurich Area, passive conduction cooling via CNC-machined or extruded aluminum heat sinks ensures an operational lifespan exceeding 50,000 hours at continuous maximum current. Every unit undergoes complete vacuum-impregnated potting using thermally conductive polymer resin (thermal conductivity >1.2 W/m·K), ensuring total immunity to sub-zero alpine condensation, oil mist, and intense mechanical vibration.
Architectural Benchmarks
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Synchronous Rectification: Replaces passive diodes to curtail conduction dissipation by up to 68%.
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Multi-Stage LC Filtering: Output ripple and high-frequency spike suppressed below 30mVp-p.
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Dynamic Step Response: Voltage deviation recovers within 200 microseconds under 50% load steps.
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Integrated Protection Suite: Over-voltage clamp, cycle-by-cycle over-current limiting, reverse polarity, and OTP.
Application Integration
Serving the Greater Zurich Industrial & Technology Corridor
From the cutting-edge autonomous robotics clusters in Dübendorf to precision rail infrastructure along the Limmat Valley, our DC-DC buck converters solve critical power distribution challenges.
Autonomous Robotics & AGV Fleets
Zurich's world-class robotics research ecosystem demands compact, vibration-resistant power stages. Modern automated guided vehicles (AGVs) operating on 48V or 72V lithium traction packs require ultra-stable 12V and 24V rails to power navigation LiDARs, stereo depth cameras, SLAM processors, and industrial embedded single-board computers without signal disruption or brownouts during motor acceleration.
Swiss Rolling Stock & Transit Infrastructure
Vehicular electronic subsystems operating across Zurich’s municipal transportation (VBZ) and Swiss federal rail routes encounter intense voltage surges, wide ambient temperature fluctuations, and continuous vibration. Our ruggedized step-down converters reliably lower 24V, 36V, or 110V auxiliary vehicle buses down to isolated 12V/5V rails for passenger information displays, ticketing validators, and trackside telemetry nodes.
Alpine Cleantech & Distributed Solar Storage
In accordance with Switzerland’s Energy Strategy 2050, commercial rooftop solar PV and alpine off-grid installations in Zurich require resilient DC voltage management. Our wide-input 30V-90V buck modules step down erratic high-voltage battery storage banks to power remote weather monitoring stations, battery management controllers, and LoRaWAN gateways functioning reliably in severe sub-zero alpine conditions.
Medical Technology & Cleanroom Diagnostics
The Zurich-Schlieren biotech hub relies on analytical diagnostic machinery, automated laboratory liquid handling systems, and medical instrumentation requiring clean power supplies. Eltrum’s galvanic isolated buck modules feature minimal conducted electromagnetic emissions, satisfying stringent European low-noise regulations without generating cross-talk in sensitive analog measurement sensors.
Machine Tools & Industrial Factory Automation
Precision manufacturing centers in Winterthur and the Zurich lowlands utilize distributed 24V DC control topologies across CNC milling workstations and packaging robotics. Our high-power buck regulators deliver tight line and load regulation (<±1.0%), safeguarding programmable logic controllers (PLCs), high-speed optical encoders, and pneumatics against voltage dips caused by cyclic machinery starts.
Industry Whitepaper Analysis
Emerging Power Electronics Trends in Zurich & Switzerland
Analyzing the regulatory, technological, and architectural shifts redefining power conversion in the Swiss engineering landscape.
Adoption of Wide Bandgap (GaN/SiC) Switches
Swiss engineers are increasingly turning to Gallium Nitride (GaN) and Silicon Carbide (SiC) semiconductors to reduce module footprint and increase switching frequency beyond 300kHz. This migration permits miniature inductive filter designs, drastically decreasing overall bill-of-materials space inside tight robotic housings and avionics enclosures throughout Zurich's R&D centers.
Rigid Swiss Environmental & Efficiency Directives
With Switzerland aiming for net-zero carbon operations, parasitic thermal dissipation inside factory control cabinets is systematically scrutinized. Power converters with conversion efficiencies under 90% are being actively replaced. Our synchronous buck series delivers operational efficiencies up to 96.5%, noticeably reducing secondary cooling load and cabinet HVAC energy consumption.
Intelligent Telemetry & Predictive Maintenance
Unplanned downtime in precision Swiss automated assembly lines incurs severe financial penalties. The latest procurement requests from Zurich OEMs specify embedded RS485 / Modbus digital buses. Designers can interrogate internal rail voltages, output load currents, and junction temperature metrics in real time to predict component fatigue long before physical failures disrupt plant operations.
Manufacturing Authority
Shenzhen Eltrum Electronic Co., Ltd.
Established in 2015, Shenzhen Eltrum Electronic Co., Ltd. operates a high-precision, onsite-verified manufacturing complex spanning up to 3,000 m² with 51–100 specialized technical personnel. We specialize in non-isolated buck/boost converters, high-voltage step-down modules, and galvanic isolated DC-DC power supplies.
Holding full ISO 9001 Quality Management Certification alongside CE and RoHS product approvals, our facilities serve technology leaders across 130+ countries worldwide. We bridge tier-one Asian component fabrication with precision European application specifications, supporting Swiss engineering teams through sample validation starting from just 5 units up to rapid high-volume container shipments.
Our agile engineering division provides comprehensive OEM and ODM support, including customized wide-input windows (such as 18–90V or 30–120V), application-specific current limiting, modified CC/CV charging curves, IP68 hermetic vacuum potting, and custom wiring harness terminations.
500+
Standard Models
130+
Countries Served
ISO9001
Certified Factory
5pcs
Prototype MOQ
Procurement & Engineering FAQ
Frequently Asked Questions by Swiss Procurement Specialists
Addressing the technical, regulatory, and logistics inquiries most commonly submitted by hardware engineers and supply managers in Zurich.
How do Eltrum buck converters comply with Swiss and European EMC (Electromagnetic Compatibility) directives?
Our DC-DC buck converter families are engineered to meet EN 61000-6-3 (Emissions for residential and light-industrial environments) and EN 61000-6-2 (Immunity for industrial environments). Each module integrates internal common-mode and differential-mode toroidal chokes, multi-layer ceramic capacitors (MLCC), and an aluminum enclosure functioning as a continuous Faraday cage. For sensitive robotics and medical applications in Zurich, we supply full EMC test reports detailing conducted and radiated emission spectra upon request.
When should a hardware design specify an isolated DC-DC buck converter rather than a non-isolated regulator?
A non-isolated buck converter shares a common electrical ground between input and output, making it optimal for vehicular 24V-to-12V conversions, standard battery packs, and general automation systems where efficiency and compact volume are prioritized. Conversely, an isolated buck converter incorporates an internal high-frequency planar transformer to separate primary and secondary grounds with up to 1500V DC galvanic insulation. Isolation is necessary to interrupt ground loops in industrial communication networks (CAN/RS485), mitigate heavy common-mode noise generated by high-power VFD motor drives, or protect delicate microcontrollers from traction battery ground faults.
What are the standard sample prototyping lead times and shipping routes to Zurich (Kloten / ZRH)?
Standard catalogue samples are dispatched from our Shenzhen facility within 24 to 48 hours via priority air couriers (DHL Express, FedEx, or UPS), arriving at Zurich Airport (ZRH) within 3 to 5 business days. Customized engineering samples—incorporating specific output voltage trim adjustments, distinct wire harnesses, or proprietary potting requirements—typically require 7 to 12 working days for fabrication, functional calibration, and burn-in testing prior to air express dispatch.
What is the Minimum Order Quantity (MOQ) for custom voltage and mechanical configurations?
To empower prototype validation at research universities and technology startups across Greater Zurich, standard production models carry an accessible MOQ starting at just 5 units. For customized output voltages, modified current ceilings, specific connector terminations (such as Deutsch or Amphenol connectors), or personalized buyer-label enclosures, our typical MOQ ranges from 50 to 100 units depending on chassis complexity.
How do your potted buck converters perform under extreme alpine thermal conditions (-40°C to +85°C)?
Our IP67/IP68 potted units are vacuum-injected with specialized thermally conductive, flame-retardant silicone/epoxy compound conforming to UL 94V-0 flammability standards. This dense encapsulant eliminates internal air voids, completely preventing moisture condensation and freeze-thaw mechanical expansion common in Swiss high-altitude alpine equipment. The modules are thermally qualified for cold-boot starts down to -40°C and continuous operation up to +85°C internal baseplate temperatures.
What documentation and trade compliance certificates are included for Swiss customs clearance?
Shipments entering the Swiss Confederation are supplied with complete commercial invoices itemizing proper HS tariff classifications (typically 8504.40), Certificate of Origin documents, CE Declarations of Conformity, and material RoHS/REACH compliance documentation. We regularly coordinate with Swiss customs brokerage representatives to ensure frictionless import processing without clearance delays.
Accelerate Your Power Architecture with Factory-Direct Engineering
Whether you require standard 24V-to-12V buck modules for vehicle fleets or a custom wide-input step-down converter for next-generation Swiss robotics, our Shenzhen engineering design lab is ready to review your technical schematics and deliver prototype validation samples.