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Dual Pd Charger - Manufacturers, Factory, Suppliers from China

Before we talk about advantages of USB-C PD would bring, let’s see how Electric Power is measured. Electric power is the relationship between power “P” (how fast electricity is transferred), current “I” (how much electricity is flowing), and voltage “V” (electric pressure).

P1
As you could see from the table below, USB 3.1 devices provide a minimum of 500mA at 5 volts. This increases to 900mA with a USB 3.1 port. USB Type-C ports can be configured in fast charging modes at either 1.5 or 3.0A for more power, and power capabilities have been extended up to 15W, while USB Power Delivery is a separate specification that can work across USB 2.0 and 3.0 ports and cables and able to deliver a maximum current of 5A, negotiable power up to 100W.
Here are some advantages of Dual PD chargers

P2
1.Enables new higher power use cases such as USB bus powered Hard Disk Drives (HDDs) and printers. This eliminates the need for a separate power brick.
2.A monitor with a supply from the wall can power, or charge, a laptop while still displaying.
3.USB power bricks or chargers are able to supply power through a laptop’s USB ports.
4.Laptops and USB power bricks can provide higher power to battery powered devices (not currently defined by USB).
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