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Since USB-C is a type of connector, and we’ve established that connectors don’t determine the underlying capabilities, it’s important to know that USB-C connectors can provide you with the performance of almost any generation of USB that has come before—what’s important is what’s behind the connector or at the other end of the cable. For example, if you were to have the right cable to connect the latest and greatest smartphone with USB-C into an old, low-power, USB-A port, the phone would likely alert you to the low power and refuse to charge. The slower protocol always wins out. This is the main difference of QC3.0. Or simply; QC3.0 is smarter: The variable voltages delivers faster charge with the same power. One other clarification worth mentioning is that the new USB Type-C fast charging tech has Type-C connections on both the charger and the device whereas most of the current charging tech have USB A connections on the charger and USB micro-B connections on the device. Energy Efficiency: QC3.0 adapters are designed to deliver power more efficiently, minimizing energy loss during the charging process. This not only reduces the environmental impact of charging your devices but also helps conserve energy and lower your electricity bills in the long run. The use of a QC3.0 adapter brings several benefits to your charging experience, making it an invaluable accessory for your compatible devices. Here are the key advantages of using a QC3.0 adapter:
A QC3.0 adapter utilizes advanced charging technology developed by Qualcomm to deliver faster charging speeds for compatible devices. Here’s how a QC3.0 adapter works: Apple ได้นำเทคโนโลยี PD มาใส่ไว้ใน iPhone X,XR,XS,XSmax / iPhone 8,8+ / iPad Pro โดยชาร์จเร็วผ่านช่องชาร์จ USB-C to Lightning It’s worth noting that while these devices can be charged using a QC3.0 adapter, the charging speed may vary depending on the device’s capabilities and requirements. It’s always recommended to refer to the device’s specifications or user manual to ensure compatibility with QC3.0 technology.From left to right, the most common USB connections (and their uses): Mini-USB (older cameras and hard drives), USB 3.0 Type-B (desktop hard drives), USB-C (future devices), Micro-USB (all manner of current mobile devices), USB-A (source port on computers and chargers). Fast Charging Circuitry: QC3.0 adapters feature specialized circuitry that is designed to handle higher power output and fast charging speeds. This circuitry ensures that the power generated by the adapter is transmitted efficiently and safely to the device’s battery. The fast charging circuitry helps minimize power loss and heat generation, resulting in faster and more efficient charging. So, which is faster, PD 3.0 or QC 3.0? In a nutshell, it depends on your device. To begin with, there’s a difference between Android and Apple products. With Android, you’re dealing with an open standard, so your mileage may vary. Most newer Android phones support PD charging, and more than half also support QC 3.0. This includes newer Samsung models. Keep in mind, though, that this will depend on your phone’s manufacturer. If you’re using a cheaper phone like an LG Stylo, you’re still limited to Micro USB charging. This won’t allow for either PD 3.0 or QC 3.0. 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. The advantage of 3.0 is that it can provide optimal voltage at the precise need of the battery, so during charging you are always at the fastest charging voltage.
Intelligent Power Distribution: QC3.0 adapters intelligently distribute power to different parts of the device during the charging process. This includes directing more power to the battery and reducing power to other components to prevent overheating or excessive energy consumption. The intelligent power distribution helps maintain efficient charging and protects the device from potential issues. A couple of days later, my new power bank arrived! I plugged it in to ensure it was ready to go before I began experimenting. 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. Buy QC 3.0 accessories. The standard is pretty new, so you should get a good amount of use from them. In the graph above (assuming charging current keep in identical); you can see the differences in the three charging technologies voltage output.
PD 3 vs QC 3
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. Power Delivery: While both QC2.0 and QC3.0 offer various voltage levels for power delivery, QC3.0 provides more precise voltage increments. QC2.0 offered three voltage levels (5V, 9V, and 12V), whereas QC3.0 expanded this range, providing even more options for devices to negotiate their optimal charging voltage. This increased precision ensures efficient power delivery and better charging performance. Safety Features: QC3.0 adapters integrate various safety features to protect both the device and the charger from potential risks. These safety mechanisms include overvoltage protection, which prevents excessive voltage levels that could damage the device, and overcurrent protection, which safeguards against power surges. Additionally, temperature monitoring ensures that the charging process remains within safe temperature limits, preventing overheating issues.
Voltage Negotiation: When a QC3.0 adapter is connected to a compatible device, it initiates a voltage negotiation process. The adapter communicates with the device to determine the optimal voltage level for charging. This negotiation ensures that the device receives the appropriate amount of power without damaging the battery or other components.I like this dev board: https://alselectro.wordpress.com/2016/06/27/home-automation-iot-demo-with-esp8266-wifi-iot-test-board/
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