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The Samsung Galaxy Note 8 supports USB Power Delivery technology for fast charging other than Samsung's proprietary quick charging scheme, so let's see how well the phone works with one of the first USB Power Delivery chargers in the market, the Google Universal Type-C Charger 60W that was launched to support charging for the Google Chromebook Pixel (2015).

We use the Granite River Labs GRL-USB-PD-A1 test software to easily analyze the USB Power Delivery behavior that goes on between the Samsung  Galaxy Note 8 and Google Universal Type-C Charger 60W. Once connected over USB Type-C, we can see the Google charger  begins to declare its source capabilities of 15 watts (5 volts @ 3 amps), 36 watts (12 volts @ 3 amps), and 60 watts (20 volts @ 3 amps) through USB Power Delivery.

The Samsung Galaxy Note 8 starts off requesting 15 watts (5 volts @ 3 amps) which the Google charger accepts.

When prompted for power sinking capabilities, the Samsung Galaxy Note 8 advertises 15 watts (5 volts @ 3 amps), 18 watts (9 volts @ 2 amps), 15 watts (12 volts @ 1.25 amps) and a variable of 18 to 24 watts (9 to 12 volts @ 2 amps) profiles.

Both the Google charger and Samsung phone can next be seen to perform a data role swap, which results in the phone initiating Vendor Defined Messages including Discover Identity and SVIDs with the charger.

When we look at the power graphs, we can see that during the first 10 seconds upon establishing first power contract, the Samsung Galaxy Note 8  starts off pulling a quick current spike up to 3 amps at 5 volts, when initially plugged in and switched on. After sink capabilities, data role swap, and Vendor Defined messaging protocol are performed, the current pulled immediately drops down to about 1.2 amps with the voltage still at 5 volts. As the phone goes into sleep mode, it trickle charges for a while before the current then picks up to reach almost 3 amps. The current eventually stabilizes for the phone to charge at around 12.8 watts (5.1 volts @ 2.5 amps).

It’s good to see that USB Power Delivery is working fine with the Google Universal Type-C Charger 60W supplying near to 15 watts to the Samsung Galaxy Note 8 as established in the above negotiation. In fact, the phone can also expect to get an almost similar power level with its own Samsung  Adaptive Fast Charger accessory through Samsung's owned quick charging standard.