PPS and SPR AVS are both fast charging technologies with voltage adjustment capabilities, but they have significant differences in technical specifications, design objectives, and user experience.
What is PPS Charging?
PPS (Programmable Power Supply) is part of the USB-PD 3.0 standard. It offers a voltage regulation range from 3.3V to 21V with high adjustment precision. PPS is primarily designed for mid-to-low power devices such as smartphones and tablets.
What is SPR AVS Charging?
SPR AVS (Standard Power Range Adjustable Voltage Supply) belongs to the USB-PD 3.2 standard. It features a wider voltage regulation range with slightly lower precision and is suitable for devices up to 100W, including smartphones, iPads, and lightweight laptops.
Key Differences Between PPS and SPR AVS
Technical Standards
PPS: USB-PD 3.0 standard
SPR AVS: USB-PD 3.2 standard
Voltage Range
PPS: 3.3V to 21V
SPR AVS: Wider range, suitable for up to 100W
Precision
PPS: Higher adjustment precision
SPR AVS: Slightly lower precision but better compatibility
Design Focus
PPS: Fine control for direct battery charging
SPR AVS: General voltage regulation with better compatibility
iPhone 17 Compatibility
iPhone 17 supports SPR AVS technology, not PPS. This choice by Apple aligns with their strategy to provide faster charging speeds while maintaining battery health and compatibility with a wider range of accessories.
Understanding these differences helps consumers make informed decisions when purchasing charging accessories for their devices, especially the latest iPhone models.