Brushless motor driver-universal version

The first version is a 2-layer board, which is more troublesome in wiring. Dupont wires are used for connection. Compared with the first version, the universal version uses a 4-layer board with 2.54mm terminal blocks, and the MOS tube part has wider traces to increase the over-current capability.
It solves the problem of loose DuPont wires and puts the interface on the edge of the board to facilitate the control of different microcontrollers. The board size is smaller, it supports square wave and svpwm control switching, and there is no need for a potentiometer for speed adjustment.

Square wave control controls two phases, and the upper and lower bridges of the third phase are closed. As for svpwm control, one of the mos tubes on the three-phase upper and lower bridges will be turned on at any time, so the complementary pwm function of the microcontroller is generally used.

The universal version uses a jumper cap and an inverting input half-bridge driver chip to achieve hardware complementary pwm output, saving the three IO ports and complementary pwm functions of the microcontroller.

The attachment contains non-inductive closed loop, Hall control, svpwm control program and PCB layout file Gerber_PCB1.

First version project link: https://oshwhub.com/lsq2715833252/cw-wu-shua-dian-ji-qu-dong

Gerber_PCB1_2022-07-18 version PCB: increased copper cladding, better heat dissipation performance, over-current capability, and signal stability.