fish001

PD boost and buck fast charging

Overview

Using SC8701 buck-boost chip and SW2303 protocol chip to achieve fast charging

Maximum 100W. The mos tube needs to be improved and the heat dissipation stronger. Try not to run it at full power.

Forget about using PWM improved

Tested fast charging protocol as shown below

The 20V voltage range can activate the tester but there is no display.

Design Files

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Update:2025-06-22 23:42:41

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