[unsure if this is correct forum, but Ive used it to talk about inverters in the past]
Hello, I am working with a co worker on making essentially a electronic centrifugal pump. We are currently at the stage where the cheap motor driver we purchased is limiting the speed of the rotor as it is reaching a fault mode if the duty cycle is too high which equates to only about 500rpm. The driver is also outputting at 20kHz, and it our belief that this frequency is too low and limiting the speed. Looking a motor drivers such as https://makermotor.com/pn00110-24c-brushless-bldc-24v-motor-driver-speed-controller-17a/. They list the input PWM frequency but not explicitly what the output frequency would be and assuming the input PWM to be the output PWM would make it a lower top frequency.
this is an ongoing research project and obviously a proprietary driver circuit will be produced but at this point the goal is to get flow data so we just need a sufficient driver.
Hello, I am working with a co worker on making essentially a electronic centrifugal pump. We are currently at the stage where the cheap motor driver we purchased is limiting the speed of the rotor as it is reaching a fault mode if the duty cycle is too high which equates to only about 500rpm. The driver is also outputting at 20kHz, and it our belief that this frequency is too low and limiting the speed. Looking a motor drivers such as https://makermotor.com/pn00110-24c-brushless-bldc-24v-motor-driver-speed-controller-17a/. They list the input PWM frequency but not explicitly what the output frequency would be and assuming the input PWM to be the output PWM would make it a lower top frequency.
this is an ongoing research project and obviously a proprietary driver circuit will be produced but at this point the goal is to get flow data so we just need a sufficient driver.