DC motor starters

[simon_12]

Hi all

Can anyone tell me, how many types of DC motor starters are there? Please send me any document on this which contains all the types of DC motor starters with their electrical diagrams and working.

Any help will be greatly appreciated.

Regards,
mhs

 

[Hero999]

There shouldn't be a need for a starter, just connect the motor to a battery and it'll run.

Could you be talking about a soft start, which prevents the current surge from blowing a fuse/circuit breaker or damaging other components?

 

[simon_12]

Hi Hero

I am talking about high power D.C motors which require starters, to limit the inrush current.

Any helpful material on this? I already searched on google but didn't find anything relevant.

Regards,
mhs

 

[Hero999]

What current and voltage are you taking about?

It's pretty simple, just connect a resistor in series with the motor and bypass it with a transistor or relay once the surge is over.

Here's a simple low power motor soft start, I designed to stop an SMPS from shutting down when a motor is turned on.
**broken link removed**
https://www.electro-tech-online.com/threads/cheap-and-cheerful-dc-motor-soft-start.30314/

 

[Simple Simon]

Simon

Are you talking about mag starters for high H.p. / Amp Motors?

If so, It would have match to the type of motor you are using.

We will need more info.

Simple Simon

 

[Wade Hassler]

DC Motor Starters Information on GlobalSpec

 

[cristimm]

Hello all, I want to use the soft-start circuit from here: https://www.electro-tech-online.com/threads/cheap-and-cheerful-dc-motor-soft-start.30314/

to start my radiator cooling fan in a BMW car. I want to use the soft-start because at idle when the fan kicks in I got a little rpm variation due to high current drain.

Will it work? Any tips?