How To Power A 90v Dc Motor

• #1

I have recently gotten a 130v DC gear motor that I want to use to power my grain manufacturing plant. For the life of me I cannot find any info that will help direct me every bit how this will be powered. I mean does information technology take something every bit simple every bit using a 12v dc transformer to power this motor? Or, how nearly using a pulse width modulator? I simply don't know how and what to use. I do have an understanding of electricity, but I would appreciate some help in the right direction. All of you electrically inclined people please help a brother out.

• #2

usually dc gearmotors are driven by pulse width modulated variable-speed controllers, only if all y'all want to do is run it at top speed you just need a unproblematic rectifier to convert ac line voltage to dc.

12vdc won't be enough voltage to run a 130vdc motor.. rectified line voltage is close plenty (110-125vac rectified to dc)

130vdc is an odd voltage for most gearmotors... most of them run at 90vdc.

• #4

usually dc gearmotors are driven by pulse width modulated variable-speed controllers, but if all y'all want to practise is run it at tiptop speed you just need a uncomplicated rectifier to convert ac line voltage to dc.

12vdc won't be plenty voltage to run a 130vdc motor.. rectified line voltage is close enough (110-125vac rectified to dc)

130vdc is an odd voltage for nearly gearmotors... nigh of them run at 90vdc.

I don't recollect that is a proficient idea every bit you take no isolation. A simple isolation transformer of sufficient current carrying capability earlier the rectifier and a filter capacitor after the diode would assist. The best solution is the motor speed controller Kevin suggested above.

• #6

Thanks for the responses. After some probing on the cyberspace and looking at some of the answers to my questions I have come to the terms that it's too hard to find a 130v dc motor control. Plus if in that location is one out at that place then information technology will be too toll effective for my upkeep. So, I was able to replace the 130v dc motor with a 90v dc motor. Which is not too bad and plus it has more torque.

Now I notwithstanding hafta notice a way to go a 120v ac to 90v dc motor control. So far i have found i on ebay:

http://cgi.ebay.com/Input-AC110V-Ou...ller-120W-/140413473184?pt=LH_DefaultDomain_0

Features:
1. Input power supply: AC110V 50/60Hz
2. Output: DC0-90V 120W.
3. Dimension: 100 10 60 10 112mm (three.nine x two.4 x iv.4 inch)
4. Cutting size: 82 10 54 mm (iii.five x ii.1 inch)

Who knows maybe I can make 1 and save some dinero. Anyone have a suggestion?

Rob

• #vii

I use the KB Electronics DC drive model KBMM-125, 90VDC with 1/2 and 1 HP motors.
My cost was $87.00 and will work with your 130VDC motor except your motor will not accomplish full speed.
The prissy matter about the controller, comes with electric current limiting, IR bounty, Min and Max speed adjustment.
KBWT-110 or 112 is a 130 VDC drive controller.

One of my project pictures.

Thanks,
ClaudiusB

• #8

Get inexpensive expect for a used 1, 1 1/2 or 2 HP threadmill motor as they come upwardly as failed weight loss items even curbside finds. These motors have a LED shutter wheel for constant rpm control no matter the motor torque demanded.
This with the electronic set up speed control panel you tin build a solid rpm controlled high HP manufacturing plant motor rather inexpensive or fifty-fifty free. These motors also have a flywheel with the fan as a cast unit of measurement plus poly belt drive. Run this to a jackshaft so to the manufactory removing mill bushing radial side loading, LoveJoy straight coupling. Function before money and beauty, JMO.

• #9

I don't think that is a good idea as yous have no isolation. A unproblematic isolation transformer of sufficient current carrying adequacy before the rectifier and a filter capacitor later the diode would assistance. The best solution is the motor speed controller Kevin suggested above.

i have a coleman powermate air compressor that has a 90vdc motor, and no isolation transformer. it was congenital that way at the factory, and i've never been zapped while using it...

a unmarried diode isn't a rectifier. you need four to make a full-wave rectifier.

Source: https://www.homebrewtalk.com/threads/power-supply-for-a-130v-dc-gear-motor.189545/

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