How to increase current to drive a motor of 2A...

Discussion in 'Homework Help' started by Alternative, Nov 1, 2008.

Thread Status:
Not open for further replies.
  1. Alternative

    Thread Starter New Member

    Nov 1, 2008
    1
    0
    I am currently work on a motor speed controller by using two NE555. The maximum output current for NE555 is 200mA as reffering to the datasheet. If I wish to drive a motor with a minimum of 2A, is there any electronic component that I can place at the output of NE555 to increase the current to 2?
     
  2. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,685
    900
    Search on PWM or PWM mosfet. Chapter 6 of All About Circuits has a good introductory discussion. There have also been many posts to this forum about the same subject.

    For a more detailed answer, you will need to tell us at what voltage you are operating, whether you want to be able to reverse the motor, and its maximum current draw. I am assuming it is a permanent magnet, DC motor. If not, you will also have to tell us what type of motor it is.

    John
     
  3. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    You can use a MOSFET on the output of the 555 to drive your motor. Also, put a protection diode across the motor to absorb the back EMF produced when switching it on and off.
     
  4. tesla0157

    New Member

    Aug 6, 2015
    8
    0
    decrease windings of motor for more current
     
  5. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,685
    900
    1) Very old thread
    2) The TS's concern was not how to increase the current draw of the motor, but how to supply the 2A he needed with a controller that only put out 200 mA maximum

    John
     
  6. bertus

    Administrator

    Apr 5, 2008
    15,647
    2,346
    Old thread, now dead
     
Loading...
Thread Status:
Not open for further replies.