Laboratory Centrifuge

The laboratory centrifuge, a common instrument in laboratories, employs rotation to generate centrifugal force, separating substances in the experimental liquid based on density and particle size for subsequent analysis. Comprising essential components like a centrifuge housing, motor, rotating shaft, and rotating drum, the motor is crucial for driving the rotating drum to achieve material separation. The APM32F035 laboratory centrifuge solution is based on the APM32F035 motor-dedicated MCU, which enhances overall system efficiency and features a more compact and reliable circuit design. The APM32F035 serves as the main control chip in this application, responsible for collecting Hall signals, current and voltage signals, executing motor control logic, receiving control commands, and providing feedback on the motor's operating status. The APM32F035 detects Hall signals, bus voltage signals, and motor phase current signals, which are then input into the MCU. Inside the MCU, motor algorithm logic is executed. Subsequently, timer1 generates six sets of complementary PWM signals to drive the motor efficiently, smoothly, and with low noise. It's worth noting that the APM32F035 integrates four independent op-amps modules internally, eliminating the need for external op-amps for signal conditioning during motor phase current sampling.