Discover our mission-critical regulated power adapters, variable transformers, high-power DC-DC converters, and industrial SMPS architectures manufactured to international safety standards.
Established in 2004 in the technology hub of Shenzhen, ShenZhen JDI Power Supply Co., Ltd. stands as a premier national high-tech enterprise and New Third Board listed manufacturer specializing in customized power conversion systems. Spanning over 6,000 square meters of advanced manufacturing facilities, JDI Power integrates state-of-the-art R&D labs, rigorous quality assurance frameworks, and automated SMT lines to serve market leaders globally.
Driven by an elite R&D team of over 20 senior electronics engineers, our technical division is headed by a renowned Chief Engineer possessing 27 years of specialized experience in high-frequency switching power topology and digital control loops. We maintain proprietary intellectual property in zero-voltage switching (ZVS), active power factor correction (PFC), and dynamic thermal optimization.
Our internal testing laboratory is equipped with internationally benchmarked instrumentation. We implement stress analysis, high/low temperature cycling (-40°C to +85°C), vibration & mechanical shock verification, alternating damp heat testing, full EMC spectrum analysis, MTBF calculation models, Failure Modes and Effects Analysis (FMEA), electrostatic discharge (ESD) testing, and accelerated thermal aging.
As energy efficiency mandates tighten and industrial applications demand ultra-compact form factors, JDI Power is driving power conversion engineering through three pivotal technical pillars.
By integrating Gallium Nitride (GaN) and Silicon Carbide (SiC) switches into our topology designs, we achieve switching speeds up to 5x faster than traditional Silicon MOSFETs. This dramatically reduces inductor and transformer sizes, yielding power density benchmarks exceeding 30W/in³ while minimizing thermal output.
Modern cloud infrastructure and smart factories require real-time diagnostics. Our intelligent adapters feature digital control loops integrated with I2C, RS485, and CANbus protocols. Remote monitoring of output voltage ripple, load currents, junction temperatures, and predictive fault notifications ensures zero-downtime operation.
Meeting and exceeding DoE Level VI and EU CoC Tier 2 eco-design requirements, our proprietary control IC architectures deliver standby power consumption below 0.075W. Advanced burst-mode switching ensures optimum conversion efficiency across light-load and zero-load standby conditions.
| Architecture Metric | Legacy Silicon Converters | JDI Smart Switching Converters | Next-Gen GaN/SiC Solutions |
|---|---|---|---|
| Typical Conversion Efficiency | 78% - 85% | 88% - 94% | 95% - 98.5% |
| Power Density | 5 - 8 W/in³ | 12 - 18 W/in³ | 25 - 35+ W/in³ |
| No-Load Power Loss | > 0.3W | < 0.1W (DoE Level VI) | < 0.04W (EU CoC Tier 2) |
| Thermal Dissipation Profile | High (Requires heavy heat sinks) | Medium (Optimized conduction) | Ultra-Low (Compact thermal path) |
| Digital Control & Monitoring | Analog Fixed Output | Optional Voltage Trim / Analog PWM | PMBus / I2C / RS485 Telemetry |
Our power conversion portfolio is engineered to fulfill stringent operational requirements across diverse high-reliability vertical sectors.
For patient monitoring, surgical tools, diagnostic equipment, and medical CPAP machines, electrical isolation and ultra-low leakage current are paramount. Our medical power supplies feature 2xMOPP (Means of Patient Protection) safety isolation, 4000VAC reinforced insulation, and leakage current below 100μA, protecting both patient and operator while ensuring electromagnetic compatibility (EMC 4th Edition).
Heavy machinery, automated robotics, and PLC systems require uninterrupted direct current. JDI Power supplies industrial DIN-rail adapters, 3-phase RS485-monitored AC-DC rectifiers, and high-power VFD frequency converters (7.5kW to 11kW) engineered to withstand wide temperature fluctuations (-30°C to +70°C), heavy vibration, and line voltage spikes.
Auxiliary power conversion in electric vehicles, off-highway trucks, and golf carts demands robust DC-DC regulation. Our high-efficiency DC-DC step-down converters (e.g., 48V to 13.8V) and heavy-duty 2000W DC-to-AC car power inverters incorporate reverse polarity, short-circuit, over-voltage, and thermal shutdown mechanisms built in IP65/IP67 ruggedized enclosures.
From fast-charging PD USB-C wall adapters (18W to 65W+) for mobile devices to ultra-stable linear adapters for CATV and low-noise switching supplies for CCTV security and home humidifiers, JDI Power delivers compact, high-efficiency solutions tailored for global market approval.
Operating from Shenzhen—the hardware capital of the world—JDI Power leverages an end-to-end industrial ecosystem to provide global B2B clients with unmatched cost structures, quick prototype turnarounds, and robust supply chain security.
From transformer planar winding and tooling design to automated surface-mount technology (SMT) and DIP soldering, our 6,000m² facility retains core production steps in-house. This eliminates third-party bottleneck delays and ensures strict quality control at every phase.
Our long-term strategic relationships with premier semiconductor and passive component manufacturers guarantee uninterrupted supply chains, shielding our global OEM partners from market shortages and component price volatility.
Operating under ISO9001:2008 and ISO14001 certification frameworks, every batch undergoes 100% full-load burn-in testing at elevated temperatures, accompanied by automated optical inspection (AOI) and computer-controlled parametric validation.
Entering international markets requires seamless adherence to distinct regional standards. JDI Power supplies pre-certified power architectures that reduce your market entry timelines and compliance overhead.
UL, FCC, cULus, NRCAN, DoE Level VI
Full compliance with safety standard UL1310/UL62368 and stringent efficiency regulations.
CE, GS, ErP, CoC Tier 2, RoHS, REACH
Adherence to low-voltage directives, EMC rules, and hazardous substance standards.
PSE, KC, CCC, CQC, BSMI, NCC
Direct certification for Japan, South Korea, Mainland China, and Taiwan target markets.
SAA, RCM, GMES, Argentina IRAM
Tailored plug configurations and wide-range voltage tolerance for global grid stability.
We streamline custom power design from concept validation to full-scale mass production through a structured 5-phase engineering process.
Collaborative requirement analysis covering electrical inputs/outputs, thermal budgets, mechanical dimensions, EMI target limits, and target bill-of-materials (BOM) cost.
Circuit simulation (SPICE), PCB layout design, 3D thermal modeling, and rapid 3D printing of custom housings followed by initial functional sample builds.
In-house stress analysis, temperature cycling, surge testing, and pre-compliance EMC/EMI scans to ensure first-pass success at external testing laboratories.
Managing complete regulatory documentation submissions for UL, CE, PSE, CCC, or specialized medical (IEC 60601-1) safety marks.
Transitioning into SMT production lines with integrated automated optical inspection (AOI), 100% full-load burn-in, and final barcode traceability implementation.
Continuous engineering change order (ECO) management, long-term component lifecycle tracking, and dedicated account managers for prompt global customer service.
Explore our high-performance power conversion devices designed for mobility, industrial automation, and consumer electronics.
Technical and strategic insights regarding our OEM/ODM custom power supply design and manufacturing services.
JDI Power Supply
