Motor Selection Criteria: Difference between revisions

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=Working Doc=
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[https://docs.google.com/presentation/d/1dbugNZGZHapjs5QdtGw6BGAvrenqvLdpcumJRg3R54Y/edit#slide=id.g5c3be0ce2d_1_28 edit]
[https://docs.google.com/presentation/d/1dbugNZGZHapjs5QdtGw6BGAvrenqvLdpcumJRg3R54Y/edit#slide=id.g5c3be0ce2d_1_28 edit]
=Motors=
*TSINY TRS-775W - spec sheet [http://www.tsinymotor.com/Products/DC_Motor/2014/0517/53.html] - '''study spec sheet for peak vs stall power'''
**'''At max efficiency, TRS-775W has 135 mN-m torque = 0.14 N-m torque = 0.014 kg-m force.'''
**'''We want to run at max efficiency so it does not overheat'''
**220W output power, 17A at 17V for max efficiency. 2.4 no load.
**12V no load 1.4A. Take 1.4/2.4 * 17A = 10A - or 120W at 12V. Just about right.
**.75*120=90W. That is about right - for
*RSRS-550s 18v - [https://smile.amazon.com/gp/product/B00TE42PME/ref=ox_sc_act_title_1?smid=A14UHVV7U39CHV&psc=1]
**150W-180W energy use (not output power)
*Jameco - 0.6 kg cm torque at max eff - $5 - [https://www.jameco.com/shop/ProductDisplay?catalogId=10001&langId=-1&storeId=10001&productId=2258540]
**192W draw (12v, 16A at max eff), and 130W power output
**19.5k RPM at max eff
*Jameco - 0.6 kg cm torque 78% max eff - $3 - [https://www.jameco.com/shop/ProductDisplay?catalogId=10001&langId=-1&storeId=10001&productId=2308079]
**'''0.006 kg-m force- about 1/2 of the TRS-775W
**13A at max eff. Up to 18V. 12V nominal. At least 156W draw. 79% efficient, so 123W out
**16.5k RPM at max eff
=Links=
*[[Electric Motors]]
*[[Open Source Shredder]]
[[Category:Motors]]

Latest revision as of 23:23, 1 June 2020

Working Doc

edit

Motors

  • TSINY TRS-775W - spec sheet [1] - study spec sheet for peak vs stall power
    • At max efficiency, TRS-775W has 135 mN-m torque = 0.14 N-m torque = 0.014 kg-m force.
    • We want to run at max efficiency so it does not overheat
    • 220W output power, 17A at 17V for max efficiency. 2.4 no load.
    • 12V no load 1.4A. Take 1.4/2.4 * 17A = 10A - or 120W at 12V. Just about right.
    • .75*120=90W. That is about right - for
  • RSRS-550s 18v - [2]
    • 150W-180W energy use (not output power)
  • Jameco - 0.6 kg cm torque at max eff - $5 - [3]
    • 192W draw (12v, 16A at max eff), and 130W power output
    • 19.5k RPM at max eff
  • Jameco - 0.6 kg cm torque 78% max eff - $3 - [4]
    • 0.006 kg-m force- about 1/2 of the TRS-775W
    • 13A at max eff. Up to 18V. 12V nominal. At least 156W draw. 79% efficient, so 123W out
    • 16.5k RPM at max eff

Links

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