# How do you control the speed and direction of a DC motor?

Contents

## How does L293D control motor speed?

To control the speed of the motor :

1. The speed is set by using an analogWrite to the enable pin.
2. Speed of the motor can be changed by changing the value in “analogWrite”, The motor spins at a maximum speed if the value in analogWrite is set as 255.

## How does motor driver control speed?

Another way to affect DC motor speed is by varying the current fed through either the field coil or the armature. The speed of the output shaft will change when the current through these coils change, as its speed is proportional to the strength of the armature’s magnetic field (dictated by current).

## Can you reverse a DC motor?

Simply put, DC motors can turn in either direction (clockwise or counter-clockwise) and can be easily controlled by inverting the polarity of the applied voltage. Strictly speaking, the motors can actually create a force in either direction.

## How do you change the direction of a DC motor?

DC motors, like AC motors, can be configured to turn in either direction. Their direction can be easily controlled by inverting the polarity of the applied armature voltage by reversing the armature leads. This works with shunt, series, and compound wound DC motors.

IT IS INTERESTING:  Can I change manual transmission to automatic?

## How do you slow the speed of a motor?

A couple of things you can do:

1. Use gears to change ratio of speed, which is what you’re going to do. …
2. Use a stepper motor, which are commonly used for high-torque, low RPM applications.
3. Find some sort of PWM control circuit to slow it down, although you probably won’t be able to get it down to 5-10RPM.

## How can we reduce motor speed?

So, if you want to decrease speed, decrease voltage. If you want to decrease torque, decrease current. If you increase torque (say by putting a brake on the motor), you are increasing motor torque. But if you don’t change the supply of electrical power, then the mechanical power also won’t change.

## What are the 3 types of motor controls?

There are mainly there are three types of motor control circuits:

• Direct On Line Starter (DOL starter)
• Star Delta Starter.
• Auto Transformer Starter.