Global OEM/ODM Customization | GaN & Silicon Power Architectures | Compliant with UL, CE, GS, FCC, PSE & SAA Standards
In the modern landscape of power electronics, the demand for highly efficient, ultra-compact, and smart power conversion topologies has grown exponentially. Driven by the fast acceleration of consumer electronics, IoT devices, medical apparatus, and industrial automation networks, the micro power adapter is no longer just a passive transformer. It is an active management system that handles high thermal density, dynamic load profiles, and stringent EMI guidelines.
Shenzhen JDI Power Supply Co., Ltd. has established itself at the forefront of this industrial transformation. Leveraging over two decades of engineering R&D, we manufacture and export micro power adapters and advanced switching converters that bridge the gap between high efficiency and miniaturization. Through systematic research into wide-bandgap (WBG) semiconductors, such as Gallium Nitride (GaN) and high-performance magnetic core structures, our production lines deliver robust, smart power solutions optimized for global distribution.
Achieving extreme scaling through integrated GaN semiconductor technology, reducing product footprint by up to 40%.
Certified under major global standards including UL, CE, SAA, KC, PSE, GS, CCC, and eco-design compliance (RoHS/REACH).
Every unit undergoes advanced cycle thermal tests, vibration profiling, and full-load burn-in validation before export.
Established in 2004 and headquartered in the high-tech hub of Shenzhen, China, ShenZhen JDI Power Supply Co., Ltd. is a national high-tech enterprise dedicated to the research, development, and manufacture of professional, personalized power converters. For two decades, we have partnered with top-tier consumer electronics, medical device, and industrial equipment brands worldwide to supply high-reliability switching and linear adapters.
With an independent 6,000 square meters modern production facility, JDI Power features first-class hardware lines, automated test setups, and a robust raw material supply chain. Our operations are fully certified under ISO9001:2008 and ISO14001 environmental and quality management systems. As a testament to our enterprise scaling and engineering rigor, we are recognized as a listed enterprise on China's New Third Board.
Our R&D infrastructure is led by an engineering director with over 27 years of experience in power supply research and magnetic components optimization. Supported by an expert team of 20+ senior power electronics engineers, our portfolio encompasses over 1,000 distinct product SKUs. We serve a broad spectrum of high-end vertical markets including:
To address the critical demand for extreme scaling in micro power adapters, the JDI Power R&D center has pivoted toward third-generation semiconductor integration. Gallium Nitride (GaN) and Silicon Carbide (SiC) are transforming the power density landscape by offering much higher switching frequencies compared to legacy silicon MOSFETs.
By operating at switching frequencies up to 500 kHz - 1 MHz, we are able to reduce the physical dimensions of magnetic components (inductors and transformers) by up to 50%. This enables our micro power adapter series to deliver higher output wattages (e.g., 65W, 100W, and up to 240W) in miniature enclosures, maintaining thermal performance with low operating temperatures.
By adopting ACF topologies in our micro adapter lines, we eliminate power waste from snubber circuits, recapturing leakage inductance energy to push conversion efficiency beyond 93.5% under full-load profiles.
Integration of intelligent physical handshaking chips. Enables real-time negotiation of voltage steps (down to 20mV intervals) and dynamic current caps to prevent battery degradation in remote client terminals.
Replacing wire-wound magnetic cores with multi-layer PCB windings. This yields excellent thermal dissipation properties, minimized leakage inductance, and outstanding consistency in high-volume production lines.
Modern power adaptation demands a tailored approach for different industries. Our technical solutions address the operational environments and regulatory frameworks of specific industries:
Medical applications require rigorous protection schemes against electrical leakage. JDI Power's medical-grade power adapters feature double isolation barrier topologies (2 x MOPP - Means of Patient Protection), keeping leakage currents under 100μA. These units are deployed in diagnostics, medical monitors, therapy systems, and high-precision sensors.
With smart household devices drawing constant power, minimizing standby energy waste is critical. Our smart power adapters comply with the latest DOE Level VI energy standards, featuring standby power consumption under 0.075W. These units are designed for smart home hubs, massage chairs, automated locks, and domestic monitoring networks.
Industrial machinery and transportation frameworks operate under harsh electromagnetic conditions. JDI provides robust, high-power DC-DC converters (such as 72V to 12V regulators for electric autos and golf carts) with IP67-rated waterproof castings. These converters feature over-voltage protection (OVP), over-current protection (OCP), and high-vibration resilience.
Manufacturing micro power adapters in Shenzhen allows JDI Power to leverage China's electronics ecosystem. Our Factory 4.0 integration guarantees component traceability, rapid prototyping, and high yield rates.
To guarantee high reliability, our specialized testing facility uses international advanced testing procedures, validating products across all major stress metrics:
In-circuit components are subjected to thermal and electrical stress analysis under max load configurations to calculate exact MTBF targets.
Adapters undergo alternating hot-and-humid cycling chambers, high/low temp cycles, and impact/vibration testing to simulate extreme shipping and operational environments.
Using FMEA (Failure Mode and Effects Analysis) and accelerated aging tests, we isolate defect vectors at the component level before final assembly.
Our production lines utilize automated optical inspection (AOI), automated transformer wound testing, and 100% full-load burn-in chambers, ensuring that every batch delivered to the USA, EU, Japan, and other markets has a field-defect rate under 0.1%.
Exporting adapters globally requires navigating complex certification matrices. JDI Power has developed a robust compliance division to ensure that all micro power adapters conform to destination regulatory frameworks:
When sourcing micro power adapters from Chinese manufacturers, procurement directors must evaluate key technical indicators to ensure long-term stability and product safety.
Verify the manufacturer executes 100% hipotic testing and leakage inductance tests on transformers to prevent insulation breakdown.
Confirm the use of dual-stage EMI filters and proper shielding layout inside the housing to ensure compliance with CISPR 32/EN 55032.
Ensure the use of electrolytic capacitors rated for at least 5000 hours at 105°C, or solid-state polymer capacitors for high-temperature applications.
JDI Power Supply