Hello first i would like to thank you for what you are doing to help us especially for students in Africa.i am a fifth year mechanical engineering student so for my final year project im building a robot.i almost finished constructing the mechanical parts but i havent done any of the electrical circuit analysis since i don’t have any background in circuit analysis ,i do have a lot of questions but i hope you will reply me with the answers.
MATERIALS THAT I HAVE USED
*i have attached a screen shot of my circuit design from Proteus
*im using dc motor with 24V & 1.2 AMPS
*im using TIP 122 Darlington transistors
*im using arduino uno board, so taking this into consideration.…..
1.is my transistor choice good?
2.is my electrical circuit design in Proteus correct ? Especially the H-BRIDGE circuits?
3.how much resistance should i use to protect my arduino uno board and to run the circuit SAFE ?
4.should i use a capacitor in parallel with the motor, if yes what should be the capacitance?
5.the motors that im using can go up to approximately 1875 rpm,but i want to decrease that to 10-20 rpm so how can i achieve that?