YHYadapter — Power Engineering Since 2010
A Shenzhen-based power adapter and battery charger manufacturer supporting OEM and ODM projects for industrial, medical-use, beauty equipment, smart device, and custom power applications.
2010
Founded
Shenzhen
China
ISO 9001
Quality Management
OEM/ODM
Project Support
Manufacturing & Quality Capability
Location: Shenzhen, Guangdong, China
Production: In-house manufacturing and assembly support
Quality System: ISO 9001 quality management
QC: Incoming inspection, in-process quality control, and final inspection
Testing: Aging or burn-in validation based on product model and QC requirements
Engineering: Support for custom voltage, connector, cable, label, and packaging requirements
Our History
Our Manufacturing Facility
Shenzhen-based factory with in-house SMT, aging, and QC testing lines
for AC/DC power adapters, battery chargers, and custom power solutions.
Automated SMT Assembly
Full-Load Burn-In Testing
QC & Performance Verification
Production & Assembly Lines
Packaging & Shipping
Engineering Lab & R&D
YHYadapter operates in-house manufacturing with dedicated SMT lines, burn-in rooms, QC testing stations, and packaging facilities — all under ISO 9001:2015 quality management.
All units undergo functional testing, burn-in validation, and final inspection before shipment. Certification options available by model and target market.
Quality Control Process — From Incoming to Outgoing
Every power adapter we ship passes through four stages of quality verification. Certifications and approvals vary by model and target market.
IQC
Incoming Quality Control
- Electrical parameters
- Dimensions
- Visual inspection
- Supplier consistency
02
IPQC
In-Process Quality Control
Production stages are monitored through inspection checkpoints:
- Solder quality
- Component placement
- Output voltage
- Assembly appearance
03
Burn-In
Aging Test
Units are validated under rated operating conditions:
- Voltage stability
- Ripple performance
- Thermal behavior
- Full-load reliability
04
OQC
Outgoing Quality Control
Final inspection before shipment covers:
- Function test
- Hi-Pot / insulation
- Leakage current
- Connector, label and packaging accuracy
ISO 9001:2015
Quality Management
100,000+ Units / Month
Production Capability
V-TRUST Audited
Supplier Verification
Why Choose YHYadapter
High Product Quality and Reliability
Our ISO 9001 factory uses the latest technology, including GaN, to achieve industry-leading energy efficiency (DOE Level VI compliance). This lowers your product’s operating costs and heat. All units built-in multi-protection mechanisms: Over-Current (OCP), Over-Voltage (OVP), Over-Temperature (OTP), and Short-Circuit Protection (SCP), ensuring flawless operation of your end device.
Global Certification
We possess extensive global certifications (such as UL, cUL, FCC, TUV-GS, CB, PSE, RCM, KC, ETL, NOM, BIS, CE, CCC, Safety Mark, and S-mark, etc.). Our compliant power supplies directly help accelerate your end product’s time-to-market. Advanced EMI/EMC suppression is integrated into the design phase.
Customization and R&D
Our core strength lies in providing OEM/ODM Power Solutions. Whether you require unique voltage/current profiles, specialized connectors, non-standard mechanical enclosures, or must meet specific medical/industrial demands, we deliver a truly tailored design. Our expert engineers offer rapid prototyping and fast design changes. We quickly move your project from concept to production, giving you a competitive edge.
Stable Supply Chain
As a factory, we maintain high control over sourcing and production, ensuring a reliable, long-term supply of critical components. Our large-scale operations and lean practices deliver the most competitive B2B pricing without ever sacrificing quality. We provide end-to-end management—from design to after-sales and End-of-Life (EOL)—supporting your product for its entire lifespan.
Engineering & R&D Capability
In-house engineering team supporting OEM and ODM projects from requirement review through production ramp.
Electrical Design
- Custom voltage / current design
- Reference design review
- BOM and component selection
- Prototype development
- Efficiency, ripple and thermal review
Mechanical Integration
- DC connector selection
- Custom enclosure / form factor
- Cable and wire harness support
- Label, branding and packaging design
- End-device fit review
Certification Support
- UL 62368-1
- CE / FCC / CB
- PSE / KC / RCM
- BIS / CCC
- IEC/EN 60601-1 available by model
Our engineering team supports power electronics design, certification planning, sample verification, and production engineering for OEM and ODM power supply projects.
Application Experience Across Industries
Our partners
For over 15 years, YHYadapter has been known for its commitment to excellence. We help our customers reach the pinnacle of
productivity and quality with specialized AC-DC power adapter solutions. Our technology ensures consistent performance you can always count on.
Certifications & Awards
Industry leaders and certification bodies worldwide recognize our commitment to excellence.
ROHS Certification
Restriction of Hazardous Substances
FCC Certification
Federal Communications Commission
CE Certification
Conformité Européenne
ETL Certification
Electrical Testing Laboratories
BIS Certification
Bureau of Indian Standards
ISO 9001 Certification
ISO 9001:2015
KC Certification
Korea Certification
NOM Certification
Normas Oficiales Mexicanas
RCM Certification
Regulatory Compliance Mark
Safety Mark Certification
Singapore Safety Mark
GS Certification
Geprüfte Sicherheit
PSE Certification
Product Safety of Electrical Appliance & Materials
UL Certification
Underwriters Laboratories Inc.