USB Power Delivery 2.0 VS Quick Charge 3.0 | ZONSAN

2023-01-03 USB Power Delivery (PD) is a specification for charging and powering devices over a USB connection. It allows devices to negotiate the amount of power they need and enables the use of higher voltages and currents to charge devices faster. There are several versions of USB Power Delivery, including PD 2.0 and PD 3.0.


Quick Charge is a proprietary charging technology developed by Qualcomm that is designed to allow devices to charge faster. Quick Charge 3.0 is the third generation of this technology. It uses Intelligent Negotiation for Optimum Voltage (INOV), which allows devices to communicate with chargers and request the optimal power level for fast charging.

Here is a brief overview of the differences between USB Power Delivery 2.0 and Quick Charge 3.0:

USB Power Delivery 2.0: This version of the specification was introduced in 2015. It supports a maximum power output of 100 watts and allows devices to negotiate the amount of power they need.

Quick Charge 3.0: This version of the technology was introduced in 2016. It supports a maximum power output of 18 watts and uses INOV to allow devices to request the optimal power level for fast charging.

It's important to note that Quick Charge 3.0 is not the same as USB Power Delivery 3.0. Quick Charge 3.0 is a proprietary charging technology, while USB Power Delivery is an open industry standard. However, some devices and chargers may support both Quick Charge and USB Power Delivery.