PD vs QC Charger | PD Charger vs Quick Charger | ZONSAN

PD is a charging standard developed by the USB Implementers Forum (USB-IF) that allows for faster charging of USB-C devices. It uses a negotiation process between the device and the charger to determine the optimal charging rate, and it can also be used to charge larger devices such as laptops. PD charging is also more efficient as it can adjust to the device's needs, for example, if the device is almost fully charged it will reduce the power and avoid overcharging.

QC, on the other hand, is a proprietary charging technology developed by Qualcomm. It is designed to quickly charge devices that use the USB-A connector. It uses a higher voltage and amperage to charge devices faster than a standard USB charger. This technology is widely used in smartphones, tablets and other mobile devices.

In summary, PD is a universal charging standard that can be used with USB-C devices and it's more efficient, while QC is a proprietary technology that is mainly used to quickly charge devices that use the USB-A connector.

Which is better PD or QC?

Both PD (Power Delivery) and QC (Quick Charge) are technologies that are used to speed up the charging process of devices. Both have their own advantages and disadvantages.

PD is a universal charging standard that can be used with USB-C devices, and it's more efficient as it can adjust to the device's needs. PD charging allows for faster charging of USB-C devices and can also be used to charge larger devices such as laptops. Additionally, PD chargers are also more future-proof as USB-C is becoming more and more common in devices.

QC, on the other hand, is a proprietary charging technology developed by Qualcomm, that is mainly used to quickly charge devices that use the USB-A connector. It uses a higher voltage and amperage to charge devices faster than a standard USB charger. This technology is widely used in smartphones, tablets and other mobile devices.

In summary, if you are looking for a universal, efficient and future-proof charging solution, then PD is a better option. However, if you want to quickly charge devices that use the USB-A connector, then QC is a better option.

It's also worth noting that some devices support both PD and QC, allowing you to take advantage of fast charging using either technology.

Is QC faster than PD?

It depends on the device and the charging scenario.

In general, QC (Quick Charge) technology is designed to quickly charge devices that use the USB-A connector by using a higher voltage and amperage. This can result in faster charging times than a standard USB charger for devices that support it.

PD (Power Delivery) is a charging standard that can be used with USB-C devices, and it's more efficient as it can adjust to the device's needs. PD charging allows for faster charging of USB-C devices and can also be used to charge larger devices such as laptops. Additionally, PD chargers can negotiate the optimal charging rate between the device and the charger, which can result in faster charging times as well.



In terms of charging speed, it's hard to compare PD and QC directly, as it depends on the device, the charging circuit, the power source, and the cable quality. Some devices that support both PD and QC, may charge faster when using QC, while other devices may charge faster when using PD.

Does iPhone use PD or QC?

The iPhone uses PD (Power Delivery) for fast charging.



Apple has implemented the USB-C Power Delivery (PD) standard in their iPhone 8 and later models, including iPhone SE (2020) and iPhone X and later models. This means that these devices are capable of charging faster when connected to a USB-C PD charger.

The iPhone's standard charger that comes in the box is a 5W USB-A charger, but when paired with a USB-C to Lightning cable, the iPhone can take advantage of the PD technology and fast charge at up to 18W.

Additionally, Apple also produces its own 20W and 30W USB-C PD chargers, which can charge an iPhone from 0 to 50% in around 30 minutes.

Does Samsung use QC or PD?

Samsung has used both QC (Quick Charge) and PD (Power Delivery) in their devices.



Samsung's flagship devices such as Galaxy S and Galaxy Note series, have support for Qualcomm's Quick Charge technology. Quick Charge is a proprietary charging technology developed by Qualcomm that can charge devices faster than a standard USB charger by using a higher voltage and amperage. This technology is widely used in Samsung smartphones and other mobile devices.

However, Samsung has also been implementing USB-C Power Delivery (PD) standard in their devices. For example, Samsung Galaxy S20 and later models, Galaxy Note 20 and later models, and the Galaxy Z Fold 2 and later models, are capable of charging faster when connected to a USB-C PD charger.

In summary, Samsung has been using both QC and PD in their devices, depending on the model. Some models support Quick Charge and other models support Power Delivery or both. It's always recommended to check the device's specifications or the packaging information to see which charging technology is supported.

It's worth noting that the iPhone doesn't support Qualcomm's Quick Charge (QC) technology, which is a proprietary charging technology mainly used to quickly charge devices that use the USB-A connector.