Attached is a schematic for a board that I use to control four motors. I deleted have the circuitry to make it easier to read. The MOSFET spec sheet is attached too.
I have two motors with the specs below operating on 24v. I have an input signal that is a PWM (75hz). This signal controls the speed of the motors. Each motor has an 18 tooth sprocket. I need to keep the two motors 'timed' between each other. Meaning I need to see equal amount of time between a left motor sprocket tooth to a right motor sprocket tooth and then right to left. I have the timing part sorted out pretty good.
I want some input as to if I am going to motor control side correct. Once in a while I notice that a motor will start to turn slower than normal. So far I have just replaced the diode and MOSFET to fix the problem. I just am not too sure what is really happening or why. Once in a while a MOSFET will avalanche, short out and the motor will run all the time. I am betting the ES2D isn't an adequate piece. Any input is appreciated.
Model Number N6835 Category 24V, Class F, Needle Bearings On Driveshaft Speed (rpm) 62 Rated Torque (lb-in) 79 Rated Voltage 24V Amps (24V model) 9.2 Amps (130V model) N/A Peak Torque (lb-in) 177 Motor HP 1/4 Gear Ratio 40 Radial Load (lbs) 120 Length XH (inch) 9.87 Weight (lbs) 9.9 Product Type 33A5FEPM-5N Accessory Shaft YES Connection Diagram 07410101
I have two motors with the specs below operating on 24v. I have an input signal that is a PWM (75hz). This signal controls the speed of the motors. Each motor has an 18 tooth sprocket. I need to keep the two motors 'timed' between each other. Meaning I need to see equal amount of time between a left motor sprocket tooth to a right motor sprocket tooth and then right to left. I have the timing part sorted out pretty good.
I want some input as to if I am going to motor control side correct. Once in a while I notice that a motor will start to turn slower than normal. So far I have just replaced the diode and MOSFET to fix the problem. I just am not too sure what is really happening or why. Once in a while a MOSFET will avalanche, short out and the motor will run all the time. I am betting the ES2D isn't an adequate piece. Any input is appreciated.
Model Number N6835 Category 24V, Class F, Needle Bearings On Driveshaft Speed (rpm) 62 Rated Torque (lb-in) 79 Rated Voltage 24V Amps (24V model) 9.2 Amps (130V model) N/A Peak Torque (lb-in) 177 Motor HP 1/4 Gear Ratio 40 Radial Load (lbs) 120 Length XH (inch) 9.87 Weight (lbs) 9.9 Product Type 33A5FEPM-5N Accessory Shaft YES Connection Diagram 07410101
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