Standard QC is 5V, QC2.0 Steps voltage at increments and QC3.0 has completely variable voltage across the range. Iused 1kΩ and 4.7kΩ resistors to create voltage dividers that I could control with a microcontroller. With a voltage of 3.3V on top of the bridge, that would give me right around 0.6V in the middle. According to the data sheet I used, the signals levels we need are: 3.3V, 0.6V, 0V, or disconnected. Dynamic Voltage Adjustment: Once the voltage negotiation is complete, the QC3.0 adapter adjusts its output voltage to match the device’s requirements. QC3.0 supports multiple voltage levels, including 5V, 9V, and 12V, allowing for more efficient power delivery. This dynamic voltage adjustment ensures that the device receives the precise voltage it needs for optimal charging performance. That said, for Android devices that support both standards, QC 3.0 is generally faster. The reason for this is INOV technology. PD charging won’t always have an exact wattage or voltage that matches your device’s needs. If it doesn’t, it will default to the next lowest power level. With QC 3.0’s INOV technology, you’ll always get the maximum voltage. Again, the exact difference will depend on your device. On some phones, the difference is not noticeable, while it can be significant on other devices.

using a larger transformer and thermal glue improve heat dissipation and keep components from vibrating. Though USB power has gone from less than 1 amp of current (1 A) in its earliest incarnations to more than 2 A today, devices have maxed out the data and power capabilities of these connectors. INOV works by intelligently detecting the exact amount of voltage required by your device. This is a significant improvement from QC 2.0, which offered four different modes. By detecting the precise voltage your device needs, QC 3.0 provides two significant benefits. First off, it maximizes your charging performance. For instance, if your device requires an unusual voltage like 19 volts, the charger will deliver it. You won’t be left flat by a 12 or 18-volt charge. Secondly, the technology avoids any wastage. You won’t be feeding 20 volts of power to a 19-volt device. Not only does is avoiding waste good for the environment, it’s also good for your device. Excess energy is shed as heat, which can cause damage. By avoiding this, QC 3.0 prevents overheating. Which is Faster? The power delivery 3.0 came with a few improvements from the previous 2.0 version. It offers a wide range of rules in four categories —7.5Wattage, 15W, 27W, and 45W— each with a range of voltage. For instance, sources supplying 27W will offer 5, 9, and 15 volts. Power delivery 3.0 could reach a supply of 100W with 20V. Which should you choose?

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As you can see, PD 3.0 and QC 3.0 are similar, but remain distinct. They’re fundamentally different technologies. Which one is better? It really depends on your device. In theory, QC 3.0 is best for smartphones. By providing the exact voltage required, it allows you to maximize your battery’s performance. That said, it’s proprietary. Only certain Android phones currently support the technology. Unless you’re using one of these devices, you won’t be able to take advantage of QC charging. On the other hand, most modern smartphones support PD charging. These include all Apple phones starting with the iPhone 8. Avoid Extreme Temperatures: High temperatures can have a negative impact on the charging efficiency and overall performance of both the device and the adapter. Avoid exposing your device and QC3.0 adapter to extreme heat or cold, as it can affect the charging process and potentially cause damage to the components. Store and use the adapter and device in a cool and well-ventilated area. Notebook บางรุ่นมีช่องชาร์จไฟบ้านเข้าแบบ USB-C แต่ก็ไม่รองรับเทคโนโลยี PD หรือ โดนล็อคไม่ให้สามารถชาร์จเข้าด้วย Charger อื่นได้) QC 3.0 can change exact voltage and can be anywhere between 3.7 and 20v, the charging is variable and this increases the overall efficiency of the charge.

iPad Pro รุ่นใหม่ 2018 นั้น ช่องชาร์จได้ถูกเปลี่ยนเป็นช่อง USB-C แล้ว ใช้สาย C to C ในการชาร์จเร็วได้เลย) ** If you have only QC 3.0 devices and don’t need the USB Type-C charging port, then Tronsmart also offers the following:So essentially, USB Type C [or USB A, USB B, micro-USB B, etc.] refers to the… connection type while the version numbers [USB 1.0, USB 2.0, USB 3.0, and USB 3.1] refer the data transfer speeds and other specs that a port or cable supports” – Android Authority. QC3.0 adapters come equipped with a range of features that make them stand out as a superior charging solution for compatible devices. These features are designed to enhance the charging experience and provide users with faster and more convenient charging capabilities. Here are some of the key features of a QC3.0 adapter: In addition to 100 watt power, there are four other wattage levels: 7.5, 15, 27, and 45 watts are all supported. Within each wattage level, there’s also support for various voltages. Just to use one example, in the 27-watt range, you can charge at 5, 9, or 15 volts. This makes the PD standard exceptionally versatile. Manufacturers can build a wide variety of devices, and still get top-tier performance. QC 3.0 Basics While I waited for it to arrive, I tried to hunt down the technical details about how the QC3.0 protocol worked. Hugatry's blog was a great starting point for QC2.0, but I needed to learn how to set the other voltages as well. Given his success in mining the protocol info from datasheets, I went looking for the same. I found the datasheets for NCP4271-D and CHY103, which gave me the additional info that I needed.