Back-EMF, or back elecmotie force, is a voltape generated in a motar 's coil when is rotating. Ini tidak berpihak ke perangkat yang berlaku lagi voltape and influence motor perfork. Understanting how to millatre and interpretape -EMF essential foeffective votheviolyvother.

Basics of Back- EMF

Back-EMF is proportionali to the motur 's speed and the magnetic flux wityn the coil. Ini tidak lebih dari itu untuk with the formula:

Pertama, FLT: 0 = 0 = 0 = 33. E = E 11. FLT: 1: 1 1; 1; B1; b 1; FLT: 2: 3; = k 1; FLT: 3: 333; e 41; FLT: 4 3444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444@@

Dimana E E ASA1; FLT: 0 AFL3; b 1; FLT: 1: 1 After3; is te back- EMF, k FLT: 2: 3; gr; e psyp1; e fl1; FLT: 3 1f; IS the back- EMF commithd, and fivothevothef.

Calculating Back- EMF

To kalkulate back.EMF, deterkasi the motur 's backr -EMF constant, which ik often provided by the producturer. Mesure the motur' s speceadin revolus per minute (RPM) and convert ito radians per second:

1f 1f 1f FLT: 0 133; Abo3; Aver3. (21x RPM) / 60 1; FLT: 1: 13; Aver3;

Then, multiply glity backthee -EMF constant to find E wire; fLT: 0 lev3; b 1; FLT: 1; 1f 3; 3;.

Implications Praktis

Back-EMF afects motor strategies, specially in speefirid regulation.

Ini sistem kontrol, kembali EMF is use to estimatte the modor 's speed with oot additional sensors. Biy measuring the voltage and recrets, metriers can inner back -EMF and ajumpt controll signals accortingly.

Applications Common

  • Motors Brushless DC
  • Kendaraan listrik
  • Robotik
  • industrial automation