Actually, it is a question about an application note of BLDC from here. enter image description here (on page 30 of that material)

The question is about calculation of potential of M. What I learned from book is that the voltage of inductance is proportional to the speed of current change. So, I do not think it is a constant value, like HV/3?? Which parts do I misunderstand??

  • \$\begingroup\$ Your image isn't showing. \$\endgroup\$ – Olin Lathrop Apr 15 '14 at 17:19
  • \$\begingroup\$ @OlinLathrop,I just uploaded image again. If it is still broken, you can check page 30 of uploaded reference material \$\endgroup\$ – oilpig Apr 16 '14 at 0:24

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