dual usb car charger The difference between QC and PD

1.Breaking through the maximum 1.5A current limit of the BC1.2 charging protocol.2.Up to 5V2A, charging time is reduced by 40%.
dual usb car charger Turned on the era of high voltage charging, breaking the conventional 5V output voltage standard for many years to 9V/12V/20V,2.Handshake recognition with the QC2.0 identification IC by recognizing the USB D+/D- voltage,3.Output scheme: 5V2A, 9V2A, 12V1.5A (18W)4.And the wire can be used universally without special treatment of the old wire.
dual usb car charger The upgraded version of QC2.0 is a fine route, using the INOV algorithm, adjusted to 0.2V.2.The minimum can be down to 3.6V maximum voltage 20V, and backward compatible with QC2.0: 9V, 12V, 20V.3.As the Type-c interface gradually replaces the original MicroUSB interface, the maximum current is also increased to 3A;4.Standard output scheme: 3.6V to 6.5V3A, 6.5V to 9V2A, 9V to 12V1.5A (18W)
Support USB Type-C, USB PD, with stronger compatibility;2. Add more advanced technology to the power saver to extend battery life and improve the safety of charging;3. Maximize the charging efficiency through the INOV (Voltage Intelligent Negotiation) algorithm (ie QC3.0: 20mV is a file), optimize the charging process and reduce heat generation;4. Use a second power management chip to provide dual fast charge, combined with intelligent thermal balance design to optimize charging efficiency.


The difference between QC4.0 and QC3.0
The QC4.0 technology adjusts the maximum power to 28W. The solution is designed for 5V/4.7A~5.6A and 9V/3A. The 12V design is abandoned and the step voltage is adjusted to 10mV.
2.The current common scheme of QC3.0 is output 3.6V~6.5V3A, 6.5V~9V2A, 9V~12V1.5A, and the nominal maximum output power is 18W. As a result, QC4.0 will support both large voltage and high current solutions, and the charging speed will be further improved while also improving heat generation and battery loss.

dual usb car charger The PD charging protocol is a power transmission protocol announced by the USB-IF organization, which can increase the current default maximum power 5V/2A type-c interface to 100W.The Type-C output does not necessarily support the USB-PD protocol charger; the charger that supports the USB-PD protocol must be Type-C output.
PD application
1.At present, the USB PD standard is divided into five levels of "10", 18W, 36W, 60W and 100W "Specifications";
2.The voltages are 5V, 12V and 20V, and the currents are 1.5A, 2A, 3A and 5A.

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