What is the maximum watt of PD3.0 fast charging protocol?

pd3.0 fast charging protocol supports up to “100W”. In November 2015, USB PD fast charging ushered in a major version update, entering the era of USB PD3.0 fast charging; the PD3.0 protocol supports 5V3A, 9V3A, 12V3A, 15V3A, 20V5A output, and the maximum power can reach 100W. Not only can It can be used to charge mobile phones, and can also be used to power laptops or monitors.

The operating environment of this tutorial: HarmonyOS 2 system, HONOR V30 mobile phone.

PD fast charging protocol

The full name is "USB Power Delivery" power transmission protocol, referred to as "PD protocol"

In November 2015, USB PD fast charging received a major version update, entering the USB PD3.0 fast charging era. There are three main changes in USB PD3.0 compared to USB PD2.0: a more detailed description of the device's built-in battery characteristics is added; the function of device software and hardware version identification and software update through PD communication is added, and the number Certificate and digital signature functions.

PD3.0 protocol supports 5V3A, 9V3A, 12V3A, 15V3A, 20V5A output. The maximum power can reach 100W. It can be used not only for charging mobile phones, but also for laptops. Or the monitor supplies power; currently, if you see laptops using Type-C interface charging cables, they basically use the PD protocol, and there are still relatively few monitors.

PD 3.0 protocol adds a specification called PPS specification

PPS specification: Programmable Power Supply, Google requires that the fast charging protocol installed on mobile phones above Android 7.0 must be Support PD protocol.

PD3.0 protocol already includes Qualcomm QC 3.0 and 4.0, Huawei's SCP and FCP, MTK's PE3.0 and PE2.0, and OPPO's VOOC and other protocols. PD 3.0 supports up to 100W charging power and is backward compatible. Thanks to its compatibility with multiple protocols, for example, if we have iPhones, Android phones, laptops, and game consoles, we can all use a PD3.0 The charging head of the agreement is ready.

PD3.0 is backward compatible with PD2.0 and PD1.0

##Extended knowledge:

1. USB PD3.0 PPS

In order to change the situation of fragmentation and fragmentation of fast charging protocols in the mobile phone market, the USB-IF Association released in February 2017 An important update to the USB PD3.0 standard, a programmable power supply PPS is added to the USB PD3.0 standard.

PPS is a type of Power Supply supported by USB PD3.0. It is a power supply that uses the USB PD protocol output and can realize voltage and current regulation. The PPS specification integrates the current two charging modes of high voltage and low current and low voltage and high current. The voltage amplitude modulation drop is also 20mV, which is only one-tenth of the QC3.0 standard at that time, and the adjustment is more precise.

And the USB-IF Association has also reached a consensus with Thiel Labs to unify fast charging technology with the PPS fast charging standard. At present, PPS fast charging has become a fast charging standard with a very high share in the Android mobile phone camp. With the built-in charge pump of the mobile phone, it can achieve efficient and high-power fast charging. It is used by models of Xiaomi, Samsung, Meizu and other brands.

2. USB PD3.1

USB PD3.1 is the fast charging standard just released by the USB-IF Association. The USB PD3.1 fast charging standard is actually Update based on USB PD3.0 PPS fast charging.

The USB PD3.1 fast charging specification divides power into two ranges: standard power range (SPR for short) and extended power range (EPR for short). The standard power range is the current mainstream USB PD3.0 PPS fast charging standard on the market, and the maximum charging power remains unchanged at 100W; while the newly added three voltages of 28V, 36V, and 48V belong to the expanded power range, and the three voltages correspond to The maximum output current is 5A, and the maximum output power can reach 240W.

In addition to adding three sets of fixed voltages, the USB PD3.1 standard also adds three sets of adjustable voltage levels (AVS for short) in the expanded power range, namely 15V-28V 5A and 15V-36V. 5A and 15V-48V 5A. The minimum voltage regulation step of AVS is 0.1V, and it continues to use the constant power limit mode based on PDP.

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