To C market industry's smallest 65W AC/DC Power Adapters — Desktop & Wall-Mount mass production success story.

"E-Power Solutions' DAC (Dual Active Clamp) Technology," bringing new innovation to the power supply industry. UNIFIVE has successfully delivered this groundbreaking circuit technology to the market as high-quality mass-produced Products. Since our founding in 1989, we have specialized in the development and manufacturing of compact power supplies. Here, we introduce a case study in which our technical expertise transformed an innovative idea into a reliable, tangible solution.

Products Overview: The Remarkable Miniaturization Achieved by ADAMON 65W Gen2

Proprietary Technology Achieving One of the Smallest Sizes in the World

ADAMON 65W Gen2 has achieved an astonishingly compact and lightweight design with a volume of just 46cc and a weight of 65g. This was made possible for the first time by combining E-Power Solutions' Dual Active Clamp Technology (DAC Technology) with UNIFIVE's many years of power supply manufacturing expertise.

Technical Features and Solutions for Mass Production Challenges

The core of DAC Technology lies in the combination of a voltage clamp circuit that limits the input voltage to 250V or less and a highly efficient active clamp DC-DC converter. This innovative circuit configuration makes it possible to replace the conventionally required large 400V-class electrolytic capacitors with compact components rated at 250V or less.

UNIFIVE addressed the following technical challenges in designing this groundbreaking circuit technology into a mass-producible Products:

1. Optimization of PCB design for high-speed switching circuits
2. Comprehensive noise countermeasures to comply with EMI standards (CISPR 32 Class B)
3. Efficient thermal design within a compact enclosure
4. Compliance with stringent safety standards (PSE/IEC 62368-1)

As an example of a Products leveraging this technological advantage, a commercial model under the ADAMON brand by E-Power Solutions is also available (ADAMON 65W Gen2 One of the World's Smallest USB-C Charger (Amazon Product Page)).

Innovative Differences Between GaN AC/DC Power Adapters — Desktop & Wall-Mount and DAC Technology

A Different Approach from Conventional GaN Methods

GaN (gallium nitride)-based AC/DC Power Adapters — Desktop & Wall-Mount, which currently dominate the market, achieve miniaturization through the approach of "enhancing high-voltage MOSFET performance using GaN." In contrast, the ADAMON 65W Gen2 achieves equivalent or greater miniaturization through an innovative circuit design that enhances MOSFET performance by lowering voltage resistance, while utilizing existing highly reliable Si devices.

Comparison of Technical Approaches

Performance Advantages Achieved by DAC Technology

By adopting DAC technology, the following advantages are achieved:

• Power Efficiency: Achieves high efficiency of 94% (equivalent to or better than GaN-based products)
• Size: Industry-leading compact size of 46cc (smaller than GaN-based products)
• EMI Performance: Secures a -6dB margin against the CISPR 32 standard
• Reliability: High reliability through proven Si devices

UNIFIVE Manufacturing Solutions

Manufacturing Capabilities Backed by 35 Years of Experience

Since our founding in 1989, we have specialized in the development and manufacturing of compact power supplies. Our track record of developing over 1,500 new Products annually and shipping more than 15,000 samples demonstrates our technical expertise and production capacity.

Particularly in mass production, we thoroughly implement Design for Manufacturing (DfM) from the design stage to establish a stable production system. Through inspection processes essential for safe and reliable power supplies and multi-stage quality control by skilled technicians, we achieve manufacturing quality highly regarded by global companies.

Comprehensive Support System for Fabless Companies

We provide the following comprehensive services to fabless companies with innovative circuit technologies and ideas:

Features of Our Manufacturing Solutions

1. Design for Manufacturability from the Initial Stage

• Mass production optimization through DfM (Design for Manufacturing)
• Thorough efficiency improvements in component layout and PCB design
• Achieving both cost reduction and quality improvement

Turning your Products ideas into "mass-producible reality."

We thoroughly implement DfM from the early stages of development with mass production in mind. By eliminating waste in component layout and optimizing PCB design, we achieve the ideal balance between cost and manufacturing quality. We propose ways to enhance manufacturability so that your ideas can succeed in the market as reliable Products.

2. Advanced Quality Assurance System

• Extensive testing systems
• Comprehensive traceability system
• Established long-term supply and maintenance system

High quality as a standard. UNIFIVE quality is protected by our systems.

At the mass production stage, rigorous inspections are conducted on all Products. We have established extensive testing systems to ensure the production of safe and reliable power supplies. Furthermore, through comprehensive traceability and long-term supply systems, we continue to deliver highly reliable Products.

3. Flexible Customization Support

• Enclosure design and logo changes
• Support for custom specifications
• Production available from small lot sizes

"Can you accommodate this specification?" Our answer is yes.

UNIFIVE has established a production system capable of responding quickly not only to mass production but also to small-lot custom projects. From changes to Products appearance and brand logo printing to connector and cable customization, we support Products development that reflects your unique identity. Feel free to consult with us even at the idea stage.

Summary of Manufacturing Partner Proposal Supporting Global Brands

UNIFIVE has been continuously selected by brands around the world, built on over 35 years of experience in power supply manufacturing. We have established an integrated system that covers everything from Products development and mass production to quality assurance and after-sales support, strongly supporting our customers' businesses from the manufacturing side. Here, we summarize the reasons why we are highly evaluated as a manufacturing partner and the services we provide. Whether you are launching your first Products or seeking further evolution of your existing brand, you can rely on us with confidence.

Why UNIFIVE Is Chosen

1. Extensive Mass Production Experience
   • Over 1,500 new models developed annually
   • Proven track record with global manufacturers
2. One-Stop Solutions
   • Comprehensive support from design assistance to mass production
   • Full support for obtaining safety certifications
   • Established after-sales service system
3. Advanced Technical Expertise
   • Over 35 years of power supply development know-how
   • State-of-the-art manufacturing and inspection equipment
   • Quality control by skilled technicians

Available Services

• Mass production design support
• Prototyping and evaluation
• Safety certification acquisition
• Mass production manufacturing
• Quality assurance
• After-sales support