High power H-bridge DC motor driver board

Must-read statement: For design reference only for electronic DIY enthusiasts, commercial use is prohibited!
Design reference: IR2104 four-way full-bridge driver - Jiali Chuang EDA open source hardware platform (oshwhub.com)
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1. Main functions:
(1) Use two MP2315S step-down chips to step down the 12V input voltage, output 5V and 3.3V to power external devices, and the maximum output current is 3A.
(2) Use 74LVC245 (other isolation chips can also be used) for electrical isolation to isolate the controller from the H-bridge drive circuit to prevent damage to the controller.
(3) Use IR2104 half-bridge drive circuit and MOS to build a motor drive H-bridge circuit. The current that can pass through the self-built H-bridge driver is determined by the on-drain current of the MOS tube. Purchase link of the MOS tube used in this project:
Original authentic NCE3080K TO-252-2 30V/80A N-channel MOS field effect tube chip - Taobao (taobao.com)
2. Supplement:
(1) The role of the diode in the MOS tube drive circuit: adjust the switching speed, slow opening and fast breaking.
(2) The power supply equipment used in this design is a 12V lead-acid battery, which can be modified according to your needs.
(3) The chip data sheet required in the project has been uploaded as an attachment and can be downloaded by yourself.
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