What is USB Power Delivery?

02/04/2020 Ian NEWS , 1,218

Actually, this issue of compatibility is about to be a thing of the past with the introduction of the USB Power Delivery Specification. USB Power Delivery (or PD, for short) is a single charging standard that can be used all across USB devices. Normally,each device charged by USB will have their own separate adapter, but not anymore.

What is USB Power Delivery?

One universal USB PD will be able to power a wide variety of different devices.

Situated on the face of our Goal Zero Yeti Lithium 1400 and 3000 power stations are two new ports: USB-C and USB-C Power Delivery. The first is merely a USB-C port that operates using the latest USB 3.1 charging standards at up to 3 amps. The second supports a dynamic fast charging technology called Power Delivery.

Power Delivery (PD) is a specification for handling higher power and allows a range of devices to charge quickly over a USB connection. It operates by facilitating a conversation between two devices to negotiate a power contract so they can determine how much power can be pulled from the charger. Power Delivery starts at the 5V setting and is configurable up to 20V. Using a standard USB-C cable, it can handle up to 60W, and will go up to 100W using a designated EMCA cable.

Another point of interest regarding Power Delivery is that it allows for power to flow both ways, with no set direction based on circuit or connection. For example, if you were to connect two phones that support Power Delivery with a USB-C charging cable, one phone could charge the other and vice versa.

USB-C output ports with Power Delivery (PD) can supply up to 100 watts of power. This is an important feature, as older generation USB ports could supply just 2.5 watts on average, enough for a phone but definitely not enough for a laptop which requires at least 60 watts. This is why for the list of power banks we only selected ones that have the PD feature.

However, this is not to say that all PD ports supply 100W. There can be different values of power output, but the most common ones are:
18W – this is enough for all types of smartphones and tablets, including devices such as the Nintendo Switch.
30W – 45W – from these levels, you can start charging more power-intensive items such as laptops, just that they will take longer to charge than usual
60W+ – starting with 60W most laptops will charge without an issue, not to mention tablets, cameras or phones.

With the heavier daily usage of smartphones, laptops and other digital electronic devices, faster power delivery has been an increasingly important concern. With the heavier daily usage of smartphones, laptops and other digital electronic devices, faster power delivery has been an increasingly important factor to concern when considering updating a fresh device. While, phrases like “fast charging, quick charge, Qualcomm Quick Charge and USB PD” are really confusing, especially when talking about the most common fast charging technologies: QC & PD. Here may have covered everything you want to know about them.

USB Power Delivery is a standard protocol from the USB-IF standards organization. It can be implemented over any USB connection, but requires new connectors and cables for full USB 2.0 connector support. The most famous phone brand adopting Power Delivery is Apple. You can enjoy a PD fast charging over USB Type-C to Lightning adapter for the use with iPhone 8 and X. However, you have to spend a lot of money for that because Apple doesn’t provide any of them. By comparison, Power Delivery can support voltages as high as 20V, and can support charging at up to 100W max.

About Merpower:

Merpower is one of the most powerful manufacturers of USB C PD power bank, outdoor power source and car battery jump starter in China. China National High-tech Certification Enterprise, Our products are distributed to Europe, North America, Central/South America, Australia and some other abroad areas. We served some famous brand OEM/ODM service gained trust from customers. All our products certified with CE,FCC, RoHS,un38.3, MSDS and other approvals.