Drive devices Flashcards
What is the primary function of a standard electrical motor?
Convert electrical energy into movement.
How does a standard DC motor create rotary movement?
When a direct current flows through it.
What happens to the direction of rotation if the direction of current is reversed in a DC motor?
The direction of rotation is also reversed.
What is the effect of a DC motor working in reverse?
It acts as a generator.
How can the speed of a DC motor be controlled?
By varying the supply voltage or changing the strength of current in its field windings.
What are solar motors?
Small, cheap DC motors that can run directly from solar panels.
What is the circuit symbol for a motor?
M
What is the defining feature of servo motors?
They turn through a precise angle controlled by a series of pulses.
What controls the angle of rotation in a servo motor?
The width of the pulses.
What device is commonly used to provide pulses for servo motors?
A microcontroller.
In which applications are servo motors commonly used?
- Robotics
- Computer Numerical Control (CNC) machinery
What is the defining feature of stepper motors?
They turn through precise steps.
How is a full rotation divided in a stepper motor?
Into a sequence of equal steps.
What is required for the successful operation of stepper motors?
A suitable motor driver circuit.
When are servo motors typically used?
When something needs to be moved through an exact angle or distance.
List some common uses of servo motors.
- Precision movement equipment
- Moving cameras
- CNC machinery
- Printers
