STM32 chip control peristaltic pump step motor's drive circuit

The utility model discloses a STM32 chip control peristaltic pump step motor's drive circuit, including STM32 chip, motor, THB6128 chip circuit, three buffer circuit, current mode set for circuit, decay pattern setting circuit, segmentation and set for the circuit, buffer circuit 1, 2, 3 respectively with enable signal, direction signal and the rate signal of STM32 chip after photoelectric coupling keeps apart, give THB6128 the chip circuit, current mode sets for circuit, decay pattern setting circuit, segmentation settlement circuit for set for the parameter of THB6128 chip circuit, the THB6128 chip circuit for accepting buffer circuit 1, 2, 3 direction signal that send here, enable signal, rate signal, and setting for the circuit through current mode, decay mode, segmentation and set for its parameter, THB6128 chip output voltage is for the operating condition of control motor. The utility model discloses a with STM32 chip control THB6128 chip driver peristaltic pump step motor work, can improve peristaltic