Controlling motor speed with a potentiometer - Physics Forums
Jun 27, 2011 · I'm trying to control the speed of a DC motor by using a potentiometer, but am unsure what value resistance I should use. Having tried 500k, 10k and 500ohms, the motor stalled almost as …
How to control DC motor speed? - Physics Forums
Jul 3, 2012 · Hi everyone, I have a 24V, 15A D.C motor, and need to control its RPM. I know RPM is directly proportional to voltage, and so the answer lies in a technique to vary the voltage across the …
DC Motor Overspeed: Cause & Effect • Physics Forums
Apr 13, 2020 · The discussion centers on the phenomenon of DC motor overspeeding, particularly in shunt wound motors when field current is reduced. It is established that speed is proportional to back …
Can i adjust a 12V DC motor's RPM with a Dimmer? - Physics Forums
Jun 29, 2009 · The discussion centers on controlling the RPM of a 12V DC motor using a dimmer switch and the feasibility of reversing its direction. Participants clarify that a standard lamp dimmer is …
Can any DC 12v or 24v motor be put on a speed control?
Feb 25, 2009 · Reducing the speed of a 24V DC bilge blower can be effectively achieved using pulse width modulation (PWM) controllers. Users can opt for specialized triac speed control units for …
DC Motor "TACHO ERROR": Solutions & Causes - Physics Forums
May 15, 2020 · The discussion centers on troubleshooting a DC motor experiencing a "TACHO ERROR" due to inconsistent speed control. The user reports that the tacho generator appears functional, with …
How does a SCR controls the speed of motor • Physics Forums
Mar 29, 2015 · The discussion centers on the use of Silicon Controlled Rectifiers (SCRs) for motor speed control, emphasizing their operation through phase firing rather than variable resistance. …
Troubleshooting a DC Compound Motor: Negative Effects and Solutions
Jul 27, 2019 · The discussion centers on troubleshooting a 100hp compound DC motor used in a recoiler application, specifically addressing issues related to an open series field. The motor, which …
Cheapest Way To Reverse/Vary Speed of DC Motor - Physics Forums
Feb 17, 2014 · The discussion centers on finding a cost-effective method to reverse and vary the speed of a small DC motor for a senior design project. Key suggestions include using a 555 timer-based …
Understanding the Relationship Between Voltage, Frequency, and …
Jul 26, 2013 · This discussion focuses on the relationship between voltage, frequency, and motor control, specifically in the context of variable frequency drives (VFDs) and three-phase AC motors. It …