Need help in 24V to 18V,130A voltage regulator

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Hi I am going to run a motor named RS 775 from banebots.com. I need to run this motor in 18V DC. I have source voltage 24 volts DC. How can I get 18V with 130A peak current giving capacity?? I mean stall current of the motor is 130A. I need to give the motor continuous 60A current.

What circuit or which voltage regulator should I choose for converting to 18V from 24V with this high current rating? Any tutorial on making the circuit or any link from where I can buy integrated circuits for this motor?
Please help me.

Last Edited: Wed. Nov 14, 2012 - 09:16 AM
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It is possible use a buck converter. Research that.

At 18V and 60A the motor losses will exceed 238 Watts. For such a small motor, I smell smoke.

It all starts with a mental vision.

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This one!?
http://banebots.com/pc/MOTOR-BRUSH/M5-RS775-18

It says peak efficiency is at 18.7A? Also the no-load current is just 2.7A!

But yes you still need a regulator that can supply a lot of amps if you have any load on your motor! (Start-up current and possibly stall-current proof)

- Brian

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Just run it on 24V and dont run it wide open.

Imagecraft compiler user

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Geronimo wrote:
This one!?
http://banebots.com/pc/MOTOR-BRUSH/M5-RS775-18

It says peak efficiency is at 18.7A? Also the no-load current is just 2.7A!

But yes you still need a regulator that can supply a lot of amps if you have any load on your motor! (Start-up current and possibly stall-current proof)

Yes, this is the motor. Ya I want to know which regulator should I choose that can supply a lot of amps??

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bobgardner wrote:
Just run it on 24V and dont run it wide open.

It cannot be run in 24V, because motor supports 6v-20v.
http://banebots.com/pc/MOTOR-BRU...

please suggest any link or tutorial on making the circuit or an IC

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The simple solution is to use PWM (pulse widht modulation) with max. pulse width of 75%. That will give you speed regulation as an added bonus. Switch the motor with a big enough power mosfet or IGBT. Severel mosfets can be paralleled if needed.

PWM signal can be generated by almost any AVR (see timer1) og just an LM555.

Peter