The 70W+ wireless charging solution is a high-power system designed by STMicroelectronics. It uses ST’s proprietary protocol, which allows higher power transmission with better thermal and charging efficiency.
Most Qi-based chargers are limited to 15W or less. But ST’s solution pushes far beyond that, making it suitable for tablets, laptops, industrial equipment, power tools, and more.
Key Components of the ST Wireless Charging System
The 70W+ system includes these key parts:
- STWBC2-HP transmitter controller: Manages power delivery, communication, and protection.
- STWLC98 receiver IC: Handles energy conversion on the receiving side.
- Firmware and protocol stack: Enables smooth communication between charger and device.
- Matching MOSFETs, rectifiers, and drivers from ST’s power portfolio ensure efficient switching and heat control.
For sourcing high-performance components like MOSFETs and power management ICs, explore DRex Electronics’ product catalog.
How the ST Proprietary Protocol Works
The protocol uses out-of-band communication between the transmitter and receiver. This allows faster response, dynamic power adjustment, and better control of thermal conditions.
It also allows authentication between charger and device, which helps protect against incompatible or unsafe charging accessories. This feature is especially important in commercial applications where consistent charging behavior is critical.
Main Features and Benefits
Here’s why the 70W+ solution stands out:
- High Power: Delivers over 70W for fast, reliable charging of large devices.
- Low Heat: Optimized power conversion means less heat, which protects sensitive electronics.
- Safe and Certified: Designed to meet global safety standards with over-voltage and over-temperature protection.
- Customizable: The solution is scalable for different power levels and can be tuned for different use cases.
- Space-Saving: No cables or bulky connectors needed, ideal for compact or rugged devices.
Applications of 70W+ Wireless Charging
This technology can be used in many industries:
- Consumer Electronics: Laptops, tablets, and phones.
- Medical Devices: Where connectors are not ideal due to hygiene or durability concerns.
- Industrial Tools: Cordless equipment that benefits from sealed, robust charging pads.
- Electric Vehicles (EVs): For small vehicles like drones, e-bikes, or scooters.
Why It Matters
Wired charging has always been fast, but cables break, connectors wear out, and plugs create design limits. The 70W+ wireless charging platform removes these limitations, offering high-speed charging without physical contact.
With the help of STMicroelectronics and reliable suppliers like DRex Electronics, businesses and OEMs can develop new devices that charge faster, safer, and smarter.
Related Reading and Resources
- Learn more about ST’s wireless power ICs
- Explore integrated circuits for power solutions at DRex Electronics
- Read ST’s technical whitepaper on high-power wireless charging solutions here (PDF)
Conclusion
The 70W+ wireless charging solution powered by ST’s proprietary protocol is changing the way high-power devices are charged. Its efficient design, scalable features, and wide range of applications make it ideal for modern electronics. To design systems that use this powerful solution, partner with trusted suppliers like DRex Electronics.
Stay ahead of the curve—because the future is wireless, and it’s already here.
