Set up a speed control for a DC motor
It often makes sense to be able to set the speed of a DC motor so that it runs smoothly. A simple speed control is relatively easy to implement.
What you need:
- an IC NE555 (with IC socket on request)
- a MOSFET IRF630
- two capacitors 10 nanofarads
- an electrolyte capacitor 100 microfarads
- two resistors 4.7 kiloohms
- a resistor 69 ohms
- a potentiometer 1 megaohm
- two diodes 1N4148
- a diode BYV28-200
- a small breadboard (about 50 x 50 millimeters)
- Soldering iron and solder
- Side cutter
- Connecting wire
Control the speed of a DC motor
For different areas of application it is sometimes useful to be able to adjust the speed of a DC motor.
- For use with DC motors, which can be used for a wide variety of areas, it is advisable to build a circuit that is as simple as possible.
- This circuit can be set up relatively easily on a breadboard using common components.
- This circuit can be used to operate motors that work with DC voltages in the range of around 5 to 15 volts.
- A corresponding one Circuit diagram can be found in the link provided under the heading "PWM with NE555".
- The present circuit works on the principle of pulse width adjustment. Depending on the setting of the rotary control (potentiometer), the electric motor receives pulses of different lengths. The longer these impulses are, the faster the motor turns.
Set up a traffic light circuit - this is how it works
A traffic light circuit that is as easy to set up as possible is often required in model making. With …
This is how you can set up a speed control
This circuit for simple speed control can be set up in a relatively simple manner. The circuit can be used universally for the specified voltage range.
- The best way to start building the circuit is to solder in the "NE555" integrated circuit. Of course, you can also use an eight-pin IC socket if you want.
- Now insert the remaining components one after the other into the breadboard and wire them together according to the circuit diagram. Only pay attention to the correct polarity or the correct polarity for the integrated circuit, the diodes, the electrolytic capacitor and the MOSFET. Terminal assignment of the components.
- Then connect the outputs of the speed control with the connections of your DC motor.
- Finally, apply the operating voltage to the circuit. With the help of the potentiometer, you can now regulate the speed of your electric motor.
How helpful do you find this article?