High Power
12V to 24V/48V High-Current Boost Converter
- TopologySynchronous Boost
- Max Output24V 50A / 48V 20A
- EfficiencyUp to 96%
- Thermal Range-40°C to +85°C
Industrial Portfolio
Featured DC Step-Up Converters & High-Current Lithium Chargers
Engineered by Shenzhen Eltrum Electronic Co., Ltd., these ruggedized modules solve the critical challenge of stepping up low-voltage DC arrays under severe voltage sag, harsh thermal cycling, and continuous heavy-duty loads.
IP68 Potted
Waterproof 12V to 48V Industrial Step-Up Boost
- Input Window10V – 16V DC Nominal
- Output Stable48V DC (12.5A – 20A)
- Ingress GuardFull Epoxy IP68
- CertificationsCE / RoHS / ISO9001
Heavy Transport
24V to 48V Step-Up DC Voltage Regulator
- Input Range18V – 32V DC Continuous
- Regulated Rail48V (10A – 15A Max)
- Power DensityUp to 720W Continuous
- Case MaterialExtruded Aluminum
Digital Bus
1500W High-Power Wide-Range Converter with RS485
- Input Voltage10V – 60V Wide Span
- Output Rail12V / 24V / 28V / 48V
- TelemetryRS485 Modbus RTU
- ProtectionOCP, OVP, OTP, Reverse
Dynamic Stabilizer
9-40V to 28V 15A/20A DC-DC Voltage Regulator
- Input Swing9V – 40V Ultra-Wide
- Calibrated Out28V Constant DC Rail
- Max OutputUp to 560W Rating
- Transient ProofLoad Dump Suppression
Sub-Zero Tested
Smart 36V LiFePO4 Step-Up Charger (12V to 43.8V)
- Input VoltageDC 10.5V – 16V Alternator
- Charge TargetDC 43.8V (12S LiFePO4)
- Current Output13A CC/CV Stage
- EnclosureIP67 Cold-Resistant Alloy
Telecom Grade
Wide Input 18-90V Galvanic Isolated DC Converter
- Input Range18V – 90V Continuous
- Galvanic Isolation1500V DC Hi-Pot Rated
- Output Rail12V DC @ 10A (120W)
- GroundingIsolated In/Out Ground
Dual-Battery OEM
400W Battery-to-Battery Step-Up Booster Charger
- Input Source10V – 36V Alternator/Pack
- Output Targets14.6V / 29.2V / 43.8V CC/CV
- Efficiency94.5% Peak Conversion
- Thermal ShutdownIntegrated Automatic Recovery
Technical Whitepaper & Strategic Localization
DC Power Topology Optimization in the Extreme Continental Climate of Ulaanbaatar
Ulaanbaatar represents the world’s coldest national capital, where extreme temperature swings from -42°C in deep winter to +35°C in mid-summer challenge the integrity of power electronics. Implementing standard off-the-shelf step-up converters in this harsh environment regularly triggers early field failure due to cold-cranking voltage sag, severe thermal shock, and rapid condensation cycles.
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Sub-Zero Magnetics & Low-ESR Capacitive Arrays
Standard DC-DC converters fail at -20°C because standard liquid electrolytic capacitors suffer severe electrolyte freezing, causing equivalent series resistance (ESR) to spike by over 300%. This induces massive ripple voltage and triggers under-voltage lockout (UVLO). Eltrum replaces conventional caps with ultra-low ESR solid polymer capacitors and custom automotive-grade ferrite inductors rated for sustained -45°C cold boot startup without requiring external pre-heating blankets.
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Wide-Span Boost Regulation During Cold Battery Cranking
In heavy equipment operating in the Tavan Tolgoi or Oyu Tolgoi mining corridors, starting massive diesel engines under extreme sub-zero conditions causes starter batteries to experience severe cranking sag down to 8.5V DC. Standard boost converters shut down instantly during this transient. Eltrum's OEM step-up units integrate high-frequency synchronous boost topologies capable of maintaining unbroken 24V or 48V auxiliary bus regulation even when input lines drop to 8.0V for up to 15 seconds.
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Hermetic Potting Guard Against Coal Dust & Condensation
The transition between heated workshops and Ulaanbaatar's freezing outdoor air induces dew-point condensation within non-sealed enclosures, leading to galvanic corrosion and tracking breakdown across high-voltage traces. Furthermore, high particulate coal and mineral dust in urban peri-urban ger districts causes dielectric breakdown. All Eltrum step-up converters utilize vacuum potting with high thermal conductivity polyurethane or silicone elastomer compounds certified to IP67 and IP68 standards.
Strategic Field Applications Across Mongolia
Field-tested power architectures tailored for government infrastructure, remote telecommunications, extraction sites, and urban transport electrification.
☀ Off-Grid Ger Hybrid Microgrids
In decentralized ger districts and rural aimags, nomad camps rely heavily on small 12V solar panels and low-cost lead-acid or LiFePO4 batteries. Our custom step-up converters elevate variable 12V rails to stable 24V and 48V buses to power high-efficiency LED arrays, satellite communication terminals, water pumping pumps, and medical refrigeration units without intermediate AC inverters.
🚚 Mining Support & Heavy Haul Fleets
Mining vehicles operating out of the South Gobi region demand rugged 24V to 48V boost power supplies to run high-output auxiliary communications, hydraulic telemetry modules, autonomous navigation LIDAR systems, and heavy-duty auxiliary warning lights. Fully potted enclosures prevent vibration failure from corrugated unpaved roads and severe washboard tracks.
📡 Cellular Telecom Racks in Remote Aimags
Telecom repeater towers scattered across remote steppes require reliable 48V DC power supplies driven by hybrid battery banks. Our isolated and step-up modules isolate vulnerable transmitter transceivers from unpredictable alternator spikes, ground loops, and severe electrostatic discharges generated by dry, high-velocity continental dust storms.
Macroeconomic & Industrial Trends
Emerging Direct-Current Electrification Trends in Ulaanbaatar
Strategic shifts in energy conservation, mining automation, and urban air quality targets are reshaping the procurement parameters for DC power conversion equipment across Mongolia.
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Ger Electrification & Clean Air Heating Initiatives
Ulaanbaatar’s ongoing anti-smog programs are accelerating the migration away from raw coal stoves toward clean electrical heating and energy storage. High-efficiency DC-DC step-up systems are central to these initiatives, eliminating dual AC-to-DC conversion losses by allowing decentralized DC solar roofs to pump high-voltage power directly into high-capacity thermal storage banks and heat pumps.
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Fleet Transition to Hybrid & Electric Commercial Vehicles
Municipal bus fleets and urban logistics companies in Ulaanbaatar are actively retrofitting older diesel vehicles or adopting modern electric buses to cut emissions. Stepping up low-voltage starter buses to power advanced 24V/48V sensors, fare collection computers, and active battery-pack heating blankets requires robust, automotive-certified DC-DC boost hardware able to withstand deep winter duty cycles.
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Telemetrized & Modbus-Equipped Power Infrastructure
Due to the vast physical distances between regional monitoring stations and capital headquarters, industrial buyers in Ulaanbaatar increasingly mandate digital connectivity. Converters are no longer passive black boxes; they must integrate RS485 communication protocols (Modbus RTU) to report live input currents, conversion efficiency, core thermal levels, and fault codes back to central SCADA networks.
Procurement Knowledge Base
Frequently Asked Questions for Mongolian Importers & Engineers
Key answers addressing customs logistics, extreme environmental tolerances, minimum order thresholds, and OEM bespoke capabilities for Ulaanbaatar-based industrial projects.
How do Eltrum step-up converters maintain stability in Mongolian winters down to -40°C?
Unlike consumer-grade power supplies that fail to start below -10°C, Eltrum specifies wide-temperature industrial components including solid tantalum or solid polymer capacitors, low-temperature magnetic core ferrites, and silicon MOSFETs with low gate charge characteristics. Each unit is encapsulated in thermally conductive silicone potting, preventing micro-cracking and protecting internal semiconductors from rapid expansion and contraction during drastic day-night thermal swings.
What is the typical shipping lead time and logistical route to Ulaanbaatar?
Shipments dispatch from our Shenzhen manufacturing facility via multimodal freight. Standard courier air express (DHL/FedEx/SF Express) typically reaches Chinggis Khaan International Airport (UBN) within 4 to 7 business days. For volume OEM production orders, rail freight via Erenhot (Erlian) cross-border transit to Ulaanbaatar Terminal delivers optimal cost efficiency within 12 to 18 days. We supply full export documentation including commercial invoices, packing lists, CE/RoHS declarations, and certificates of origin.
Can you customize step-up charging profiles for lithium iron phosphate (LiFePO4) packs?
Yes. Lithium batteries in sub-zero climates require specialized multi-stage charging algorithms to avoid lithium metal plating on the anodes when temperatures fall below 0°C. Our engineering team can configure custom CC/CV curves, voltage step-up cutoff thresholds (e.g., 14.6V for 12V LiFePO4, 29.2V for 24V, and 43.8V for 36V packs), and integrate internal temperature sensing probes or RS485 communication lines to interface directly with your Battery Management System (BMS).
What are the Minimum Order Quantities (MOQ) and sample validation policies?
To support Mongolian engineers, system integrators, and mining contractors during initial testing and prototype trials, standard catalog converters feature an engineering MOQ starting at just 5 units. For bespoke OEM/ODM projects (custom PCB layout, specialized non-standard enclosures, or unique step-up ratios), prototype sample batches are produced within 7 to 10 working days prior to high-volume manufacturing runs.
Why should an engineer select an isolated boost converter over a non-isolated model?
Non-isolated step-up converters share a common electrical ground between input and output, which provides maximum conversion efficiency (up to 96%) at a lower cost—ideal for automotive lighting, motors, and general vehicle electronics. However, in applications such as telecom repeaters, mining instrumentation, medical carts, or positive-ground heavy transport vehicles, galvanic isolation (1500V+ DC dielectric withstand) is required to break ground loops, eliminate dangerous noise, and protect sensitive logic circuits from high-voltage spikes.
What payment and contractual trade terms are supported for Mongolian corporations?
We support international Telegraphic Transfer (T/T), PayPal, and Escrow services in USD, EUR, and CNY currencies. Standard delivery terms include EXW (Shenzhen factory), FOB (Shenzhen/Guangzhou ports), and CIF/CIP Ulaanbaatar. Full warranty support of 12 to 24 months is provided on all industrial series, supported by comprehensive engineering failure analysis reports.
Manufacturing Excellence
Engineered by Shenzhen Eltrum Electronic Co., Ltd.
Established in 2015, Shenzhen Eltrum Electronic Co., Ltd. operates an advanced manufacturing facility spanning up to 3,000 m² in the Hangcheng industrial cluster of Shenzhen. Certified under ISO 9001 quality management systems, our state-of-the-art facility incorporates high-speed SMT automated placement lines, automated transformer winding, computerized load testing, and comprehensive burn-in aging chambers.
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500+ Verified Power Conversion Topologies
We supply buck, boost, buck-boost, and galvanically isolated power conversion systems to over 130 countries worldwide, supporting OEMs across vehicle engineering, solar infrastructure, marine applications, and robotics.
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100% Full-Load Automated Burn-In Screening
Every single step-up power module undergoes rigorous high-voltage insulation tests, short-circuit recovery stress tests, and sustained high-temperature full-load burn-in screening before dispatch to eliminate early field mortality.
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Complete Turnkey OEM / ODM & Buyer-Label Services
From customized input voltage profiles (8–90V spans) to specific current thresholds, IP68 hermetic aluminum extrusions, specialized wire harnesses, and laser-etched buyer branding, our in-house engineering team works directly with client specifications.
Ready to Engineer Your Custom DC Step-Up Solution?
Whether you require standard 12V-to-24V/48V boost modules, sub-zero battery chargers for Mongolian field operations, or bespoke high-wattage power supplies, our engineering team in Shenzhen is on standby to provide rapid quotes, technical schematics, and prototype evaluations.
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