High-Efficiency Semiconductor Components, Customized PCBA Modules, and Integrated OEM/ODM Power Solutions for Global Automotive, Industrial, and Consumer Applications
Explore our core engineering components, including multi-axis wireless charging modules, magnetic resonant solutions, and low-loss switching MOSFETs.
The global wireless charging paradigm is transitioning rapidly from basic consumer accessories to mission-critical industrial, medical, and automotive environments. As businesses optimize layouts for automated guide vehicles (AGVs), warehouse robotics, and high-reliability clinical settings, the request for high-efficiency wireless power transfer (WPT) modules has grown exponentially.
Current industrial implementations prioritize ruggedness, dust-and-water protection (IP67/IP68), and absolute thermal management. In high-power applications, standard connectors fail due to mechanical wear and oxidation. Magnetic inductive and resonant wireless solutions eliminate contact surfaces entirely, mitigating fire hazards and minimizing downtime in manufacturing operations.
A deep-dive analysis of circuit topologies, frequency modulation, and component selection criteria for high-efficiency wireless power transfer systems.
Utilizes tightly coupled transmitter (Tx) and receiver (Rx) coils operating at 110-205 kHz. Highly efficient for localized charging interfaces. Enhanced alignment using magnetic arrays (such as MagSafe/Qi2 MPP) maintains optimal coupling factor ($k$), keeping power transmission losses to a minimum.
Operates on loosely coupled coils tuned to identical high frequencies (typically 6.78 MHz). Supports extended vertical and horizontal charging margins, allowing multiple devices to charge concurrently over air gaps of up to several centimeters. Essential for heavy industrial automated systems and clinical settings.
Engineered around advanced Cmsemicon MCUs and fast-switching WINSOK MOSFETs. These systems communicate bi-directionally over the power transfer field, adjusting voltage and current curves based on real-time temperature, charging state, and Foreign Object Detection (FOD) telemetry.
To maximize efficiency in both inductive and resonant configurations, transmitter inverter stages (Half-Bridge or Full-Bridge topologies) and synchronous rectifier stages demand low-loss switching devices. Olukey integrates WINSOK MOSFETs—covering a wide spectrum of voltages (15V, 20V, 30V, 40V, 60V, 80V, 100V, 120V, 150V, 200V, 250V, 300V, 400V, 500V, 600V, 650V) packaged in high-performance footprints such as DFN3X3-8, DFN5X6-8, TO-252, TO-263, SOP-8, SOT-23, and TO-220.
By leveraging ultra-low Drain-Source On-Resistance ($R_{DS(on)}$) and optimized gate charge ($Q_g$), WINSOK MOSFETs reduce dynamic switching and conduction losses, preventing heat buildup within compact wireless charging pads and sealed medical assemblies.
From smart cabins to critical medical environments, our custom designs solve specific real-world integration challenges.
Modern passenger and commercial vehicles require rugged, temperature-resistant wireless chargers integrated into center consoles. Olukey designs feature smart CAN-bus connectivity, wide input voltage tolerances, and robust thermal protection structures to ensure consistent charging during high ambient summer temperatures.
Factory automation relies on continuous operational uptime. High-power wireless modules (ranging from 100W up to 1kW) allow automated guided vehicles to charge dynamically during short idle periods at loading docks. This eliminates mechanical contact wear, reduces cleanroom dust contamination, and prevents electrical arcing in combustible environments.
Clinical equipment and wearable health monitors demand completely sealed enclosures to withstand aggressive sterilization protocols. Our customized resonant wireless power designs allow reliable energy transmission through plastic, glass, and silicone housings, eliminating physical charging ports that harbor bacterial contamination.
Operating from the global epicenter of electronic engineering in Shenzhen, Hongkong Olukey Industry Co., Limited offers a highly resilient and fully vertically integrated supply chain ecosystem. We bridge the gap between advanced original component manufacturers and global OEM/ODM brands.
Our strategic placement in the Asia-Pacific market allows us to coordinate raw materials, silicon wafer allocation, packaging, testing, and final PCBA assembly with minimal lead times. We leverage general agent privileges with top semiconductor fabs to secure priority supply, shielding our global partners from market fluctuations and component shortages.
By offering an end-to-end service—combining WINSOK MOSFETs, Cmsemicon MCUs, and custom PCBA engineering—we drastically compress product development cycles from initial schematic design to mass production.
A comprehensive overview of our semiconductor component lineup engineered for wireless charging transmitters, power conversion, and motor control.
| Voltage Ranges Supported | Common Package Configurations | Silicon Model Coverage | Typical Applications |
|---|---|---|---|
| Low Voltage: 15V, 20V, 30V, 40V | DFN1X06-6S, SOT-23, SOP-8, DFN3X3-8 | WSD1614DN106, WSF3036(A), WSD4070DN33 | Mobile receivers, synchronous rectification, wearable charging cradles. |
| Medium Voltage: 60V, 80V, 100V, 120V, 150V, 200V | DFN5X6-8, TO-252, TO-263, TO-220 | WSD23N10DN33, WST02N20, STP40NF12 | Industrial transmitter bridges, AGV high-power docks, automotive inverters. |
| High Voltage: 250V, 300V, 400V, 500V, 600V, 650V | TO-220, TO-263, DFN5X6-8 | Custom industrial-grade high-voltage models | Grid-connected power supplies, off-board charging stations, industrial SMPS. |
A wireless charging circuit is only as reliable as its control loop. Cmsemicon MCU products, born in the technology hub of Shenzhen, bring rich R&D heritage to our PCBA platforms. By integrating these MCUs, our wireless power solutions feature:
Shipping wireless power hardware globally requires navigating complex regulatory environments. We support our customers through every step of certification, ensuring all products satisfy regional standards:
With local Field Application Engineering (FAE) support operating across key distribution networks in the Asia-Pacific region, Europe, and North America, we resolve design issues—such as thermal modeling, PCB parasitic inductance, and shielding customization—right at the customer’s laboratory.
A trusted global partner for high-tech electronic component distribution and overall PCBA solution design.
HONGKONG Olukey INDUSTRY CO., LIMITED is an overall solution provider focusing on the supply and development of electronic components. Our operations are centered around three core product lines: WINSOK MOSFETs, Cmsemicon MCUs, and custom PCBA circuit board development.
Based in the high-growth Asia-Pacific market, we leverage partnerships with original wafer fabrication facilities to provide manufacturers with top-tier electronic components. Our products are widely utilized in automotive electronics, industrial robotics, military applications, smart medical machinery, IoT devices, and various consumer electronic goods.
Our commitment is simple: "Quality First, Service First." Over the years, we have built stable, trust-based relationships with international brands, delivering competitive component pricing, agile technical support, and reliable logistics continuity.
Get answers to common design questions regarding MOSFET performance, MCU integration, and magnetic optimization.
Wireless charging transmitter bridges operate at high switching frequencies (110kHz to 205kHz for inductive; 6.78MHz for resonant). Switching losses are heavily determined by Gate-Drain Charge ($Q_{gd}$) and input capacitance ($C_{iss}$). WINSOK MOSFETs use optimized trench gate layouts to reduce these parasitic values, minimizing gate driver requirements and thermal dissipation in full-bridge and half-bridge configurations.
Cmsemicon microcontrollers feature high-performance analog peripherals, including high-speed comparators and dedicated operational amplifiers, enabling fast closed-loop control. They process demodulated communication packets from the receiver, drive the PWM output channels to control power delivery, and manage safety mechanisms like Foreign Object Detection (FOD) and Over-Voltage Protection (OVP).
As a global partner and general agent for WINSOK and Cmsemicon, Hongkong Olukey Industry maintains rolling forecasts and strategic inventory buffers. By controlling the complete manufacturing pipeline—from silicon wafer sourcing and packaging to PCBA layout design—we offer competitive lead times even during industry-wide semiconductor shortages.
Yes. Our latest custom development platforms incorporate Magnetic Power Profile (MPP) capabilities matching Qi 2.0 specifications. This guarantees accurate physical alignment via custom-tuned magnetic rings, leading to system efficiencies of over 85% to 90% while reducing thermal generation during power transfer.
Absolutely. Our PCBA engineering team can customize magnetic shielding materials, ferrite backings, and Litz-wire coil layouts to fit unique spaces, such as automotive dashboard cavities, handheld medical probes, or ruggedized industrial robotic docks.
Complete component catalog including medium-to-high voltage switches and dual-channel configurations for efficient power conversion.
Olukey
