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Do you often see the word "PD" when picking out chargers or electronic devices but don’t know what that means? In this article we will quickly explain what PD means and its advantages.
USB PD stands for USB Power Delivery, a charging protocol released by USB-IF in 2012. USB PD 3.0 uses a Type-C interface, offering high power and wide voltage, making it capable of powering various devices.
Before introducing the working method, let's review a basic electrical formula:
Charging base power supply options
When two USB PD devices connect, the negotiations between them will happen to determine which device will supply power and which will receive power. During the process, the devices would also exchange information about their respective power capabilities and requirements, for instance, the maximum supported voltage and current intensity.
USB PD 3.0 offers multiple combinations such as 5V, 9V, 15V, and 20V, with corresponding currents of 2.25A, 3A, and 5A.
Device requests power
The device then addresses its required power combination to the power supplier. For example, a phone might request a 9V*3A (27W) combination.
Charging base supplies power
Finally, the Type-C charger provides the appropriate power based on all the information.
Devices like the beCreatus DP1310, equipped with PD 3.0, support up to 100W fast charging, allowing your laptop to enjoy full performance while charging.
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