PD 3.0 vs. PD 4.0 vs. QC 3.0 vs. QC 4.0 – Understanding the Differences
What Is Power Delivery (PD)?
Power Delivery (PD) is a universal fast-charging standard designed by the USB Implementers Forum (USB-IF). It allows devices to draw higher power levels efficiently through USB Type-C cables. PD focuses on interoperability across devices, meaning it can work with laptops, phones, tablets, and even gaming consoles.
PD 3.0 Highlights:
● Offers power up to 100W.
● Supports PPS (Programmable Power Supply), allowing dynamic voltage and current adjustments for optimal charging.
● Reduces heat generation, preserving battery health.
● Widely compatible with most smartphones, including iPhones and Android devices.
PD 4.0 Highlights:
● A more advanced version of PD 3.0.
● Backward compatible with PD 3.0.
● Introduces support for USB4 and Thunderbolt 3, ensuring faster data transfer alongside charging.
● Optimized for laptops, ensuring faster and safer charging for high-powered devices.
What Is Quick Charge (QC)?
Quick Charge (QC) is Qualcomm's proprietary fast-charging technology, specifically designed for devices with Qualcomm chipsets. QC is widely used in Android devices and excels in speed.
1.QC 3.0 Highlights:
● Dynamic voltage adjustment between 3.6V and 20V for better efficiency.
● Provides up to 36W of charging power.
● Compatible with older QC devices.
2.QC 4.0 Highlights:
● Faster and cooler charging compared to QC 3.0.
● Supports USB Power Delivery, ensuring compatibility with a wider range of devices.
● Designed to be more energy-efficient and battery-friendly.
Key Differences Between PD and QC
1. Compatibility:
● PD is a universal standard, making it suitable for most devices (from phones to laptops).
● QC is specific to devices with Qualcomm processors but now includes partial compatibility with USB PD.
2. Power Levels:
● PD chargers can deliver up to 100W of power, perfect for high-demand devices like laptops.
● QC chargers typically max out at 36W (QC 3.0) or slightly higher for QC 4.0.
3. Flexibility:
● PD 3.0 and 4.0 with PPS offer finer control over voltage and current, reducing heat and improving battery health.
● QC focuses on speed, with slightly less emphasis on thermal management.
GaN Chargers – A Game-Changer in Charging Technology
Both PD and QC chargers are evolving alongside hardware innovations like GaN (Gallium Nitride) technology. GaN chargers are smaller, more energy-efficient, and dissipate less heat than traditional silicon chargers. For example:
● A GaN charger with PD 3.0/4.0 support can power your laptop and phone simultaneously.
● A QC-enabled GaN charger ensures ultra-fast charging for Android devices while staying compact and portable.
The following table summarizes the key differences between PD 3.0, PD 4.0, QC 3.0 and QC 4.0:
| Feature | PD 3.0 | PD 4.0 | QC 3.0 | QC 4.0 |
| Maximum | Up To 100W | Up To 100W |
Up To 36W | Up To 36W(can be higher with USB PD) |
| Voltage Range | 5V To 20V | 5V To 20V | 3.6V to 20V | 3.6V To 20V |
| Dynamic Power Adjustments |
Supports PPS (Programmable Power Supply) |
Enhanced PPS | Dynamic Voltage Adjustment | Supports USB PD for Dynamic Adjustments |
| Compatibility | Universal Compatibility Across USB-C Devices | Backward Compatible with PD 3.0 and USB4/Thunderbolt 3 | Limited to Qualcomm Devices | Partially Compatible with USB PD |
| Battery Heslth | Reduced Heat, Optimal Charging Efficiency | Improved Battery Health Features | Moderate Thermal Mangement | More Energy-Rfficiency and Cooler |
| Ideal Use Cases | Laptops. tablets, phone and other high-powered deices | Same as PD 3.0,with added features for laptops | Android devices with Qualcomm chipsets | Qualcomm-powered Android devices and USB PD-supported devices |
| Technology Backing | USB-IF | USB-IF | Qualcomm | Qualcomm |
| GaN Charger Integration | Widely available with GaN technology | Widely available with GaN technology | Compatible with GaN chargers | Compatible with GaN chargers |
Zonsan Chargers Charge Your Devices Fast
Fast charging technology has come a long way since its introduction and continues to evolve and adapt to meet consumer needs. Fast charging and power delivery technologies help charge devices faster than ever before. Zonsan chargers can charge your devices faster than ever before with PD, PPS, and QC technology solutions.
Zonsan GaN 4-Port Fast Charger 100W integrates GaN and Power Delivery technologies. Our wide range of charging solutions is essential for any tech-savvy individual looking to optimize charging times and use their devices more frequently and comfortably.
Our minimalist, high-quality consumer electronics can make your life simpler and your work more enjoyable. Contact our team today to learn more about the solutions that Zonsan experts offer consumers.
Final Thoughts
When selecting a charger, it's crucial to consider your device ecosystem, power needs, and compatibility. Whether you’re looking for a wall charger, a desktop charger, or a universal mobile charger, prioritize options that support PD 3.0/4.0 or QC 4.0 for future-proof performance. Don’t forget to explore GaN chargers, which combine efficiency and portability, making them the ultimate choice for modern users.