In an era where medical technology is evolving rapidly, the development of medical devices is shifting toward designs that feature miniaturization, portability, and high energy efficiency. Miniaturization enables medical devices to be easily applied across various scenarios, especially in-home healthcare and first aid applications, where reducing the weight and size is particularly critical. Portability allows patients to receive medical care anytime and anywhere; portable devices play a vital role in both telemedicine and outdoor first aid applications. High energy efficiency not only helps medical institutions to lower their operating cost, but also reduces heat generation, improves system stability and service life, as well as aligns with the current trend of a green and sustainable design.

These trends impose more stringent requirements on medical power supplies, and the emergence of GaN components brings a new hope of addressing these requirements. The exceptionally high electron mobility enables GaN-based power components to achieve exceedingly high switching frequencies. High switching frequency helps reduce the size of passive components, such as inductors and capacitors, thereby greatly increasing power density and enabling a miniature and lightweight design of power supply modules, which perfectly addresses the demands of smaller and lighter medical devices.

For example, by adopting GaN-based power supplies, the portability of certain portable ultrasonic diagnostic devices can be significantly improved, with the overall size and weight reduced by 30% and 20% respectively.

However, applying GaN components to medical power supplies also faces various challenges and risks; for example, the exceptionally high switching frequency leads to high voltage change rates (dv/dt) and current change rates (di/dt), which can easily result in electromagnetic interference (EMI) issues. A more complicated driver circuit may affect the stability and anti-interference capability of medical power supplies when the design is flawed. Meanwhile, a lower saturation current of GaN components is likely to impact their reliability under peak load conditions.

In response to numerous challenges when applying GaN to medical power supplies, APD has set out early research of related technologies by leveraging its solid technical foundation accumulated in power supply field over years APD R&D Center conducts in-depth analysis on materials, structures, characteristics and application concerns of GaN components and has already established a set of comprehensive GaN component design and application guide covering key elements such as layout and EMI design of GaN components. In the meantime, the R&D Center has also built a robust testing and verification system for power supplies to run holistic performance tests and reliability evaluations of GaN-based medical power supplies.

Through continuous technology investment, APD has made a remarkable breakthrough in the field of GaN-based medical power supplies. Currently, APD has already successfully developed several GaN-based medical power supplies. In actual tests, these products demonstrate outstanding performance, not only achieving high power density, energy efficiency, and stability, but also meeting the strict electromagnetic compatibility and reliability standards of the medical industry.

With strong technical capabilities, extensive R&D experience, and a determined commitment to quality, APD is confident to reliably apply GaN technology to medical power supply solutions to maximize its advantages. In the future, APD will continuously deliver safer, more efficient, and more reliable power products to the medical device industry to drive the advancement of medical technology, effectively reduce potential application risks, and contribute to the ceaseless progress of the healthcare sector.