Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Brushed motors , can I slow start them ?

Status
Not open for further replies.

Rolly_g2002

New Member
Does any one know if it is possible to slow start power from a lithium battery to a brushed motor ?. Reading into this there's a lot of forums that say lithium batteries are to aggressive on the brushed motors. Trying to work with a 18 to 24 v motors.
 

Attachments

  • Screenshot_20221024-143352~2.png
    Screenshot_20221024-143352~2.png
    237.8 KB · Views: 150
  • Screenshot_20221024-143429~2.png
    Screenshot_20221024-143429~2.png
    413.8 KB · Views: 152
Solution
My first thought would be a speed controller, something along these lines:

If you replace the pot with a capacitor and resistor, so each time power is switched on the speed input starts at zero and ramps up, that should give you the soft-start effect. Add a reverse diode across the resistor to quickly reset it when power is switched off.

Or, if the motor load is low, just a power resistor to limit the initial current and short that with a relay after eg. half a second, using a capacitor across the relay coil and resistor feeding it to delay the relay switching on.
Again, a reverse diode across the resistor will give a fast reset.
My first thought would be a speed controller, something along these lines:

If you replace the pot with a capacitor and resistor, so each time power is switched on the speed input starts at zero and ramps up, that should give you the soft-start effect. Add a reverse diode across the resistor to quickly reset it when power is switched off.

Or, if the motor load is low, just a power resistor to limit the initial current and short that with a relay after eg. half a second, using a capacitor across the relay coil and resistor feeding it to delay the relay switching on.
Again, a reverse diode across the resistor will give a fast reset.
 
Solution
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top