Author Topic: Post a guess on the min starting voltage for this brushed DC motor  (Read 1917 times)

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Offline Brumby

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Re: Post a guess on the min starting voltage for this brushed DC motor
« Reply #25 on: May 23, 2018, 11:39:57 am »
I forgot to ask .... is this with or without a Batteriser?
 

Offline Psi

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Re: Post a guess on the min starting voltage for this brushed DC motor
« Reply #26 on: May 23, 2018, 08:21:42 pm »
Gyro  75mV
Electro Detective 0.050mV
TwoOfFive 50mV
Brumby 82mV
schmitt trigger 94.5mV
NiHaoMike  133.7mV
Hero999  40mV
amyk  67mV
Tomorokoshi 42mV
JohnnyMalaria 0mV
ez24 1550mV
BrianHG  -65mV


So, results are in, and im calling it a tie between Gyro (75mV) and amky (67mV).
Mainly because i stuffed up and let the cat out of the bag.

BrianHG gets some points for guessing perfectly 180deg out of phase.

Video



« Last Edit: May 23, 2018, 10:19:31 pm by Psi »
Greek letter 'Psi' (not Pounds per Square Inch)
 
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Offline Gyro

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Re: Post a guess on the min starting voltage for this brushed DC motor
« Reply #27 on: May 23, 2018, 09:22:48 pm »
Yay, thanks (congrats to amyk and BrianHG). ;D

It's still impressive to see those motors turning so slowly.
Chris

"Victor Meldrew, the Crimson Avenger!"
 

Offline Psi

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Re: Post a guess on the min starting voltage for this brushed DC motor
« Reply #28 on: May 24, 2018, 06:08:07 am »
Yeah.

Make sure you checkout the end of the video. I included some closeup shots of the commutator rotating.
Greek letter 'Psi' (not Pounds per Square Inch)
 
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Offline Brumby

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Re: Post a guess on the min starting voltage for this brushed DC motor
« Reply #29 on: May 24, 2018, 12:39:22 pm »
Dang, I went high .... should have gone low.

Yes, I am using Gyro's figure as my reference.   :-[
 

Offline Ampera

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Re: Post a guess on the min starting voltage for this brushed DC motor
« Reply #30 on: May 24, 2018, 12:47:48 pm »
I'm happy with my guess, I wasn't that far off.

C/C++/Java Programmer, Legacy hardware enthusiast, perpetually off-its-rocker madman.
If it's broken, I probably did it.
 


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