Apple(US:AAPL) 3 6 Ke·2025-09-10 12:42Core Insights - The introduction of the iPhone 17 series and the new 40W dynamic power adapter marks a significant advancement in charging speed, allowing the device to charge 50% in just 20 minutes, utilizing the SPR AVS (Standard Power Range Adjustable Voltage Supply) protocol [3][5][23] Group 1: Charging Technology Evolution - The SPR AVS protocol represents a shift from traditional fixed voltage charging methods, addressing the common issue of heat generation during fast charging [6][10] - Apple’s choice of SPR AVS over the widely adopted PPS (Programmable Power Supply) protocol reflects a strategic decision to prioritize efficiency, safety, and future ecosystem compatibility [5][11][21] Group 2: Technical Advantages of SPR AVS - SPR AVS offers a more practical voltage step of 100mV, which balances precision and robustness against real-world electrical interference [19][20] - Unlike PPS, SPR AVS allows for independent control of voltage and current, ensuring maximum current output even at lower voltages, thus eliminating power loss issues [20][21] - The adoption of an open standard by Apple aims to unify the charging ecosystem, reducing fragmentation and enabling third-party manufacturers to create compatible accessories without proprietary restrictions [21][22] Group 3: Industry Impact - The implementation of SPR AVS in the iPhone 17 is expected to set a new benchmark for fast charging technology across the industry, potentially leading to widespread adoption of this standard [23] - Apple's historical trend of adopting and promoting superior technologies suggests that SPR AVS could become the foundational charging technology for mainstream smart devices in the coming years [23]