When do you need to control the speed of a DC motor?
Often we want to control the speed of a DC motor on demand. This intentional change of drive speed is known as speed control of a DC motor. Speed control of a DC motor is either done manually by the operator or by means of an automatic control device.
How does an electronic speed control work on a car?
Function. An electronic speed control follows a speed reference signal (derived from a throttle lever, joystick, or other manual input) and varies the switching rate of a network of field effect transistors (FETs) . By adjusting the duty cycle or switching frequency of the transistors, the speed of the motor is changed.
What is the difference between speed control and speed regulation?
Speed control means intentional change of the drive speed to a value required for performing the specific work process. Speed control is a different concept from speed regulation where there is natural change in speed due change in load on the shaft.
How does the speed control on a ceiling fan work?
For instance, when you switch from medium to high on a solid-state fan, the speed control mechanism increases the power of the motor. Solid-state controls are generally equipped in fans with controls that have predetermined settings, such as low, medium and high.
What are the settings for the speed controller?
Going from forward to reverse quickly can damage gears. FWD/REV/BR – this setting will be forward break and reverse. You normally press the break to slow down and once you have stopped press the break again and your car will go into reverse. FWD/REV – this option is very rare!
For instance, when you switch from medium to high on a solid-state fan, the speed control mechanism increases the power of the motor. Solid-state controls are generally equipped in fans with controls that have predetermined settings, such as low, medium and high.
What do you need to know about electronic speed control?
Most of the modern electronic speed controllers mainly include a microcontroller to understand the input signal & controlling the electric motor properly through an inbuilt program which is known as firmware. In some conditions, it is achievable to modify the factory in-built program for an alternate.
What should drag break be on speed controller?
You can set drag break in percentages 2%, 5%, 7% etc. Lets say you set this to 7%. That means as your racing round the track each time you let of the throttle, 7% of breaking force will be applied instantly. I still need to play around with this setting.