With the mandatory enforcement of GB 20943-2025 approaching on February 1, 2027, the power supply industry is facing a major transition. The new standard significantly elevates requirements for efficiency and no-load power consumption. Proactively responding to this challenge, the Guangdong Terminal Fast Charging Industry Association has completed the first phase of diagnostic testing. Five industry leaders—On-Bright, BPS, INJOINIC, Ismartware, and Southchip—have successfully validated their core chipset solutions, setting a new benchmark for compliant, high-efficiency power design.
The 2026 (Autumn) Asia Charging Exhibition is scheduled to take place on September 11 at the Shenzhen Qianhai International Convention Center. The event will feature in-depth interpretations of the new national power efficiency standards, alongside technical presentations on low-standby fast-charging architectures and high-efficiency power supply design.
The shift from the 2013 standard to the new GB 20943-2025 framework marks a comprehensive expansion in scope, now encompassing everything from laptop adapters to high-power server supplies. Success under these new rules demands more than high efficiency; it requires masters-level control over standby power in multi-port and dynamic charging scenarios. For chipmakers and designers, the challenge is clear: deep synergy between topology, components, and protocol management is essential to deliver ultra-low standby power without sacrificing performance.
The five validated chipset solutions highlight distinct strategies for achieving compliance:
On-Bright (OB2659 + OB2669): Utilizes intelligent switching between QR, PFM, and extended Burst modes, suppressing no-load consumption to <5mW at 230Vac.
BPS (BP87600D + BP62600D + BP63030N): Employs primary-side high-frequency QR with secondary-side magnetic coupling feedback and a deep-sleep mechanism to achieve <5mW standby consumption, ideal for 65W PD fast chargers.
INJOINIC (IP2017 + IP2028 + IP2766G): A full-chain solution covering primary-side flyback control, secondary-side synchronous rectification, and protocol control, meeting Level VII no-load requirements for 65W adapters.
iSmartWare (SW1192H + SW1609 + SW3578): Focuses on reducing high-voltage switching losses via ZVS synchronous rectification to improve thermal performance in high-power-density adapters.
Southchip (SCV3059AQ1 + SC3501 + SC2151A): Integrates high-performance drivers and secondary-side synchronous rectification to simplify output design while balancing thermal management and complex PD protocol requirements.
Compliance is no longer an option but a strategic requirement. As 2027 approaches, the dual focus on topology optimization and energy-saving strategies will define the next generation of power electronics. These validated chipset solutions provide a roadmap for manufacturers to navigate this transition, ensuring they can meet the increasing market demand for smarter, greener, and more efficient power technology.
Related Articles：
1. 7050mAh Battery | Charging Compatibility Test of OPPO Find X9 Ultra
2. STIHL Goes Tabless, The New ALLPRO Battery System Redefines Power Tool Performance
3. Battery enterprise efficiency, a dual-dimensional look at revenue and profit per capita
