Custom OEM High Efficiency Inverter Manufacturers & Manufacturer

Industrial-grade Power Electronics Engineered for High Efficiency, Absolute Thermal Reliability, and Tailored OEM/ODM Integration.

Featured High Efficiency Power Modules

Explore our top-performing DC-DC converters, battery chargers, and power supplies engineered for rigorous industrial and automotive requirements.

Waterproof 36W 12v Ac to 12v Dc 3A Converter

Waterproof 36W 12v Ac to 12v Dc 3A Converter AC12v to DC12v Ac-dc Converter for Printer,Router,Monitoring Switchboard

View Details
High Efficiency 12v to 56v Boost Converter

High Efficiency 12v to 56v 5a Dc to Dc Voltage Regulator 5amp 12vdc Step up 56vdc boost Converter

View Details
Waterproof 10a 50w DC-DC Step Down Regulator

Waterproof 10a 50w Voltage Buck Module Dc Dc Step Down Regulator 60vdc 72vdc 80v to 5v Isolated Converter

View Details
Waterproof Smart 12v 40 Amp Battery Charger

Waterproof Ship Boat Use 12vdc 14.6v 14.7v 12.6v 16.8v Intelligent Smart 12v 40 Amp Battery Charger

View Details
WEMAXPOWER 720W 12v to 24v Dc Converter

WEMAXPOWER High Power 720W 12vdc boost 24vdc Dc Step up Voltage Regulator 30a 12v to 24v Dc Converter for Vehicle

View Details
DCDC Converter 12V24V36V48V to 48V 10A

12Vdc/24Vdc/36Vdc/48Vdc to 48Vdc 10A DC/DC Converter with Fuse Single Phase Home & Motor Use

View Details
WEMAXPOWER IP68 Car Voltage Transformer 24v Ac to 12v Dc

WEMAXPOWER IP68 5a Car Monitoring Ac-dc Voltage Transformer 24v Ac to 12v Dc Converter Module for Security System

View Details
12v to 14.6v 100a DC Battery Charger

High Efficiency Input 12vdc Batteries Output 14.6vdc 100a Chargers 12v to 14.6V 100amp Dc Dc Battery Charger for RVs Campervan

View Details
7+
Years of R&D Excellence
98.5%
Peak Efficiency Topology
4-Step
Rigorous Quality Control
100%
Full-Load Aging Tested
Industry White Paper

The Paradigm Shift in High-Efficiency OEM Power Conversion

Modern industrial and transport sectors demand unprecedented levels of electrical efficiency, compact designs, and robust durability. In the global landscape of Custom OEM High Efficiency Inverter Manufacturers, the focus has shifted from standard off-the-shelf topologies to custom-engineered conversion systems. Energy conversion efficiency is no longer just a metric of reduced power waste; it is a critical component of system safety, device longevity, and thermal management.

When operating in high-power applications—such as marine systems, industrial automation, telecommunications, and recreational vehicles (RVs)—even a 1% loss in converter efficiency translates into significant thermal dissipation challenges. For instance, a 2400W boost converter operating at 90% efficiency generates 240W of waste heat, requiring bulky heatsinks and active cooling. However, when designed with advanced synchronous rectification topologies and high-speed switches achieving 97% efficiency, heat dissipation drops to just 72W, allowing for sealed, convection-cooled IP67 housings. This technical advantage forms the core engineering ethos of Shenzhen Wemaxpower Technology.

Why Shenzhen Wemaxpower Technology?

As an industry-leading OEM and ODM power technology manufacturer based in Shenzhen, China, we bring over 7 years of specialized expertise in power electronics. Our products include programmable DC power supplies, DC-DC step-up/step-down converters, AC-DC transformers, and advanced battery charging modules. We deliver bespoke solutions tailored to the stringent electrical specifications and space constraints of global clients.

Our commitment to reliability is reflected in our rigorous 4-step QC process. By ensuring that every unit undergoes raw material validation, semi-finished component checks, finished assembly inspections, and mandatory thermal aging tests, we mitigate the risk of infant mortality in semiconductor components, guaranteeing an outstanding MTBF (Mean Time Between Failures) for your applications.

Shenzhen Wemaxpower Manufacturing Team

The Strategic Edge of China’s Power Manufacturing Ecosystem

Procuring custom high-efficiency power modules from China offers significant strategic advantages for international buyers, provided they partner with a design-focused manufacturer. Shenzhen stands as the global silicon epicenter, granting immediate access to advanced semiconductor supply chains, raw copper resources, high-frequency magnetic core factories, and advanced surface mount technology (SMT) infrastructure.

  • Rapid Prototyping and Validation: The geographical proximity of component vendors allows us to turn complex custom OEM designs (such as specialized input voltage ranges or high-IP rating enclosures) from schematics to physical prototypes in weeks instead of months.
  • Advanced Magnetic Core Engineering: High-efficiency conversion relies heavily on proprietary transformer designs. Having direct collaborations with top ferrite core manufacturers enables Wemaxpower to customize copper windings and planar magnetics for optimized high-frequency performance and minimized core losses.
  • Cost-Engineered Quality: The integration of vertical manufacturing stages reduces overhead costs, passing on the economic benefits to our clients without compromising critical component selection, such as utilizing premium Japanese capacitors or automotive-grade MOSFETs.

As a leading developer, Wemaxpower continuously integrates emerging technologies to align with global technological shifts. Several key trends are dominating the design landscape of high-efficiency inverters and converters:

1. Wide Bandgap Semiconductors (GaN & SiC)

Silicon Carbide (SiC) and Gallium Nitride (GaN) are replacing traditional silicon switches. Their superior switching speeds and lower RDS(on) values minimize switching and conduction losses, allowing converters to operate at higher switching frequencies (e.g., 200kHz to 500kHz). This frequency increase reduces the physical footprint of inductors and capacitors, resulting in ultra-compact designs like our high-power boost and buck modules.

2. Digital Control Topologies

Digital Signal Processors (DSPs) are replacing analog control loops. A digital control system allows for dynamic adaptation to load changes, programmable soft-start sequences, and flexible communication interfaces (such as CAN bus, RS485, or Modbus). This is particularly crucial for adjustable power supplies used in laboratory and electroplating processes.

3. High Ingress Protection (IP67 / IP68)

Industrial applications now frequently demand complete environmental resistance. Developing waterproof converters that can operate continuously in maritime environments or vehicle undercarriages requires advanced epoxy encapsulation techniques, specialized sealing gaskets, and corrosion-resistant aluminum housings. We specialize in engineering these ruggedized modules.

Our 4-Step Quality Control & Production Excellence

We implement an uncompromising Quality Assurance system to ensure that every power module shipped meets industry standards.

1. Raw Material Verification

Every batch of incoming silicon, magnetic cores, capacitors, and PCB substrates undergoes strict parameter testing. Only materials meeting high thermal ratings are admitted to production.

2. Semi-Finished Testing

Post-SMT and during sub-assembly stages, we test control circuitry, gates, and internal voltage regulation. This identifies soldering faults or drift issues before final potting.

3. Finished Product Test & Aging

Completed assemblies are subjected to high-load burn-in chambers under controlled heat cycles. We stress-test units at maximum limits to guarantee long-term field stability.

Direct Production Floor & Quality Check Points

Dynamic Assembly Process Showcase
Advanced SMT Quality Control Checks

Macro-Level Solutions & Regional Application Scenarios

High-efficiency conversion modules serve as the backbone for multiple sectors. Under custom OEM projects, Wemaxpower optimizes design profiles for localized and application-specific parameters:

1. Recreational Vehicles (RVs) and Off-Grid Vans

Modern campervans rely on massive LiFePO4 battery arrays. Managing high-efficiency charge-discharge rates from vehicle alternators to service batteries requires smart DC-DC chargers. Wemaxpower’s 100A and 60A smart chargers dynamically adjust profiles (14.6V for LiFePO4) to ensure batteries are charged safely without overloading the alternator. High efficiency minimizes heat buildup in enclosed vehicle compartments.

2. Marine & Vessel Electrification

Salt spray, high humidity, and vibration are lethal to standard converters. Our IP68-rated waterproof AC-to-DC and DC-to-DC converters feature heavy aluminum castings filled with high-conductivity epoxy resin. This prevents water ingress and resists mechanical shock, keeping onboard monitoring, communications, and engine control systems operational.

3. Telecommunications and Remote Infrastructure

Telecom towers operate in remote areas, relying on solar arrays, battery backups, and wide-input voltage buck regulators (e.g., 60V/72V/80V down to 5V or 12V). Power loss here means communication downtime. By utilizing isolated topologies, we shield sensitive RF components from high-voltage spikes and transient surges.

4. Industrial Automation & Electroplating Lab Control

Precision electroplating and chemical processing require highly reliable, variable DC power sources. Wemaxpower’s programmable switching power supplies (such as our 400V 10A and variable 110V 10A models) support 0-5Vdc analog remote interfaces, allowing integration into automated industrial PLC control networks.

Global Procurement Standards for Custom OEM Inverters & Converters

For technical buyers, procurement managers, and hardware engineers, securing a supply chain requires validating critical parameters. When auditing a custom inverter manufacturer, verify the following specifications to ensure design reliability:

  • Thermal Management and Derating: Determine whether the module operates at full load up to 50°C or 60°C ambient temperatures before thermal derating curves apply. High-efficiency components delay the onset of thermal derating.
  • Galvanic Isolation: For industrial security, isolated topologies are mandatory to prevent voltage transients on the primary side from damaging microprocessors on the secondary side.
  • Electromagnetic Compatibility (EMC): High-switching frequencies emit EMI. Certified converters must include internal Pi-filters to pass FCC Part 15 Class A/B and CE EN55022 limits.
  • Custom Form Factor & Connectors: OEM integration often requires specialized terminal blocks, custom cable harnesses, or compact chassis designs.

Technical & Design Verification FAQ

Answers to common engineering queries regarding OEM customization and power supply specifications.

How does Wemaxpower maintain high conversion efficiency in high-power boost converters?
We achieve efficiencies up to 98% in our boost converters by using active synchronous rectification rather than passive diode loops. Synchronous MOSFETs feature extremely low Rds(on), which drastically reduces conduction losses. We also optimize core layouts and use high-grade copper windings to minimize eddy current losses at high frequencies.
What parameters can be customized for OEM projects?
Our engineering team can customize input/output voltage thresholds, current limits, charging curves (specifically for LiFePO4, AGM, and lead-acid profiles), waterproofing grades (IP65, IP67, IP68), mechanical footprints, thermal mounting options, and external communications protocols (CAN bus, RS485).
What is the standard procedure for the aging test at Wemaxpower?
Our 100% full-load aging test involves placing completed converters in an environmental burn-in chamber. The units are run under full rated electrical loads at elevated ambient temperatures for a minimum of 4 to 12 hours. This process screens out component infant mortality and ensures thermal stability under real-world conditions.
Why is isolated converter design preferred in high-efficiency industrial applications?
Isolated converters use internal high-frequency transformers to physically separate input and output ground connections. This isolation barrier prevents loop currents, protects low-voltage controllers from upstream electrical surges, reduces EMI noise propagation, and enhances safety.

Industrial Grade Power Converters & Chargers

Select from our specialized line of voltage regulators, AC-to-DC converters, and laboratory switching power supplies.

Waterproof 24v Ac to Dc Converter

Waterproof 2A 24v Ac to Dc24v Camera Motor Monitoring Car 24vac to 24vdc Ac Dc Converter

View Details
110v dc adjustable power supply 10a

Variable 0-110Vdc 10A 1100W AC to DC Regulated Switching Mode 110Vdc 10amp Adjustable Power Supply for Electroplating Lab

View Details
Lead acid LiFePO4 RV battery charger 14.6v 60a

Charge Lead Acid LiFePO4 Lithium Vehicle RV Camper 14.6V 14.7V 12.6V 60A Smart DC DC Portable Aluminum Battery Charger

View Details
1000w dimming power supply 12v 110v

1000W Constant Voltage Constant Current 12V24V36V48V60V90V110V150V Dimming Power Supply Charging Industrial Control Power Supply

View Details
wemaxpower 400v 10a dc power supply

WEMAXPOWER 400V 10A Single Output DC Power Supply with 0-5Vdc Analog Signal Remote Control for Industry Use Variable

View Details
wemaxpower waterproof ip67 24v to 48v 50a

Wemaxpower Wayerproof IP67 High Power of 24v to 48v 50A 2400W Step up Boost Dc to Dc Power Converter Module

View Details
Waterproof 2a ac 24v to dc 12v converter

Waterproof 2A Ac 24v to Dc 12v Converters Step Down Voltage Regulator 2amp 24vac to 12vdc Ac-dc Converter

View Details
wemaxpower 120v to 12v dc isolated converter

WEMAXPOWER isolation converters 120v 100v 90v 80v to 12vdc 8a step down dc regulator 12v isolated converter

View Details