Bo-Bright PD-20W High Integrated Power Supply Scheme

The Bo Bright PD-20W charger adopts the Onbao fast charging power supply scheme internally and the OB2631U+OB2013B highly integrated switch power supply scheme, with simplified peripheral components. The protocol chip comes from Tiandeyu and uses JD6606S+FP6601A protocol chips for USB-C and USB-A interfaces, respectively. The chip is equipped with comprehensive protection functions, making charging safer.

This PD-20W fast charging model adopts a 1A1C interface design, with dual port output of 5V3A. The USB-B port supports 18W fast charging, and the TYPE-C port supports 20W fast charging.

Front view of PCBA module, bottom welded NTC thermistor, fuse, high-voltage filter capacitor, and differential mode inductor. Left welding transformer, upper welding filter capacitor. The USB-C motherboard is welded onto a vertical small board, and the protocol chip is also welded onto the same small board.

Weld two 10m Ω current sampling alloy resistors and one VBUS switch tube on the back of the small board.

$0.020562

STE1206M1W0R010F

Metal Current Sensing Chip Resistor ,1206 ,0.010R(10mR) ,±1% ,1W ,MnCu ,±50PPM ,WALTER-STE

WALTER-2010250V（Square)

Micro Fuses

The upper protocol chip is from Tiandeyu, model JD6606S, which is a high-performance and highly compatible fast charging protocol chip packaged in CPC-16L. The chip has passed USB PD 3.0 certification, TID: 3768. Not only does it support USB PD3.0 fast charging, but it also supports mainstream charging protocols such as QC3+, QC3.0, QC2.0, AFC, FCP, SCP, and APPLE 2.4A.

Tiandeyu JD6606S provides constant voltage and current control, supports multi port output control, supports output overvoltage and overcurrent protection, and integrates VBUS discharge function. The output protocol is flexibly configured by resistors, and supports multi port output power reduction. It supports a maximum output of 60W to a minimum output of 18W, meeting the output of the main current PD adapter.