Motor Specifications: Speed (without load): 7820 rpm, Speed / Torque: 7820 rpm / 594 g-cm ,Stall torque: 5596 g-cm ,Current draw (at 7820 rpm): 1.5A ,Nominal voltage: 12 VDC Operating voltage: 6 to 14 V.
Motor driver specs(l298N motor driver): Power Supply 50 V ,Logic Supply Voltage 7 V ,Input and Enable Voltage –0.3 to 7 V ,IO Peak Output Current (each Channel) – Non Repetitive (t = 100µs):3A, –Repetitive (80% on –20% off; ton = 10ms):2.5A, –DC Operation:2 A ,Sensing Voltage –1 to 2.3 V ,Total Power Dissipation (Tcase = 75°C) 25 W.
Can this motor driver be used for the above mentioned Motor?? If so How??
Thank you.
@Bk Your motor is brushed, 12V and 1.5A, so you need to find a DC brushed controller which can provide 12V and 1.5A or more. It seems the L298N can do the trick, but is a little too close to the minimum specs. You should choose a controller which can provide at least 2A, and 5A or more is even better.
i need to know that what kind of dc motor is to be used to lift 10 kg weight and the size is to be as much as possible
@pankaj sharma There are many ways to lift a weight. We suggest creating a new topic on the RobotShop Forum and describing your application in detail.
I need to do a fast car do I buy geared with torque motor 12v rpm motor please suggest me as soon as possible
Sir I need to build a fast car which motor should I prefer geared or rpm motor
@Shrikanth We suggest researching RC cars - almost all use brushless DC motors with a bit of gearing.
Hi Coleman, I want to install a conveyor having load capacity around 25Kg, what kind of dc motor should i use? conveyor would run through water.
@Abhinay kumar The calculations involved are beyond the scope of this article. You will need to get an idea of the torque and RPM required. Friction will also play an important role in these calculations.
HI Coleman, my application requires a DC motor to operate at constant load (torque) and variable speed. Is this possible since speed and torque are inversely proportional. I certainly know that speed can be varied by changing applied voltage. Also, does the value of stall torque change at different voltages.
In my application, I require a DC motor that can operate a fixed load at different speeds. Is this possible? Since torque varies with current and speed varies with voltage, does this mean that voltage has no effect on torque and that the dc motor will generate the same torque even at lower voltage?
@Deepak Reddy: Yes, it is doable to control a DC motor by torque (instead of speed). You can read some answers on what is torque control here, for example. The voltage, speed, current and load are all related together when trying to control a motor. Of course, such a form of control will require both a position sensor and a current sensor of good quality, measurement speed, etc. We recommend that you find a good control book (maybe one relating specifically to motors or robotics).
@Deepak Reddy: As mentioned in our other reply, DC motors voltage, current, speed, torque (and load) are all related to each other electro-mechanically. This is due to how a DC motor is built and functions. We will not go into more details here as this is too complex for a simple blog comment and we strongly recommend that you read more about DC motors. Getting a few engineering books about this would most likely be a good idea. Here is a short explanation of electric motor fundamentals.
I am making an acrobot(underactuated double penduIum) wanted to purchase a motor regarding the above.I want 3.2Nm torque at 500 rpm. Which motor should I purchase and should I use a gearbox?
@Prakhar Jain Yes, you will need a gear motor. Normally a DC motor rotates at 5k to 10k rpm without gearing. Check out the following category: https://www.robotshop.com/en/gear-motors.html
i have 12v dc motor with 6100 rpm, if i apply 5v input how many is the rpm?
@Maverick Ng It’s likely not a linear relationship that far from the nominal voltage. Some motor manufacturers include a value KV which relates voltage to RPM. The motor may operate far less efficiently at 5V.
mr.coleman i m trying to build an electric car its weight is 200 kg…and we are thinking of using dc series motor…but we are confused of what hp and of what voltage that motor shold be…can u plz suggest me…???
@raj chavan That is the weight of a large scooter, or what a normal scooter plus driver weighs. Many of these need 24V, 250W to 500W motors.