Quick Answer: How do you increase the torque of a DC motor?

If the speed is to remain constant then the back-emf must also remain constant. Then the only way to increase torque is to increase the armature current and the only way to increase the armature current is to increase the supply voltage. This in effect is how a speed controller works.

How can we increase the torque in electric motor?

The way to increase the torque that the motor delivers, mechanically, would be:

  1. To increase the diameter of the wire in the windings (which is to say, completely remanufacture the motor)
  2. to have the output shaft coupled to a gear reduction setup, which would lower the final drive rpms, but increase the torque.

How do I make my torque higher?

An effective modification that will increase torque significantly is to install a turbo or supercharger. Forced induction forces air into your engine, increasing the power the engine provides. Depending on the torque curve you prefer, a turbocharger will need time to spool before it provides torque benefits.

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What are the factors affecting torque in DC motor?

In a DC Series motor: Torque is directly proportional to square of armature current. Apart from the current through the coil the torque depends on the magnetic field strength.

How do you increase the torque of a 12v DC motor?

If the speed is to remain constant then the back-emf must also remain constant. Then the only way to increase torque is to increase the armature current and the only way to increase the armature current is to increase the supply voltage. This in effect is how a speed controller works.

How can I increase the RPM of a 12v DC motor?

You can increase the rotational speed of the DC motor by increasing the excitation current over the field coil of that motor or by increasing the field fluxes in the airgap of the motor ..

How do you increase the torque of an AC motor?

The way to increase the torque that the motor delivers, mechanically, would be:

  1. To increase the diameter of the wire in the windings (which is to say, completely remanufacture the motor)
  2. to have the output shaft coupled to a gear reduction setup, which would lower the final drive rpms, but increase the torque.

How do you increase the torque of a motor with gears?

You can create a gear ratio that increases its torque by going from smaller gear at motor end to slightly larger gear on load end . This will slow RPM ‘s down on load side but torque will increase . 2:1 ratio is a good start if RPM’s is not issue .

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Which is proportional to the torque in dc motor?

For DC Machine, torque is directly proportional to armature current and flux. In dc shunt motors, flux is constant (not dependent on armature current). Hence torque is proportional to armature current.

What is the torque equation of DC motor?

Torque or moment or moment of force is the tendency of a force to rotate or move an object about an axis. A force is a push or pull, likewise, torque is a twist to an object. Mathematically, torque, T = F × r.

What are the factors affecting torque?

Examples: Page 5 Torque is Determined by Three Factors: The magnitude of the applied force. The direction of the applied force. The location of the applied force.

Why do DC motors have more torque?

In electrical terminology, a parallel circuit is referred to as a shunt. Therefore, DC motors in which the armature and field windings are connected in parallel are called DC shunt motors. … The net voltage increase causes the armature current to increase, which increases the motor torque.

How do you slow down the RPM of a DC motor?

Most DC motors can be slowed down by reducing the supply level of power, Volts, lower volts and resulting less amps, will create less electrical field and will slow motor down. For more gradual speed control there are electronic solutions that are called PWM (Pulse Width Modulation) controllers or Mosfet H bridges.