Electronically commutated motor

H - Electricity – 02 – P

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H02P 6/00 (2006.01) H02P 6/16 (2006.01) H02P 6/24 (2006.01)

Patent

CA 2350325

In an electronically commutated motor, both the driving current (i2) and the braking current (i2') are monitored. When excessive driving current occurs, a pulse duty factor which regulates the current is reduced. When excessive braking current occurs, this pulse duty factor is increased. For this purpose, an analog circuit with two current limiting members is disclosed, as well as a circuit in which these functions are implemented by software in a microcontroller, so that current measurement can be dispensed with. Finally, a combination of these features is disclosed, in which hardware current limitation and software current limitation work together.

L'invention concerne un moteur à commutation électronique pour lequel une surveillance s'exerce aussi bien sur le courant d'entraînement (i2) que sur le courant de freinage (i2'). Lorsque le courant d'entraînement est trop élevé, un rapport durée de passage de courant pendant le cycle/durée de cycle est réduit, qui influe sur le courant passant dans le moteur. Lorsque le courant de freinage est trop élevé, ce rapport durée de passage de courant pendant le cycle/durée de cycle est augmenté. A cet effet, il est prévu un circuit analogique comportant deux éléments limiteurs de courant (131, 161), ainsi qu'un circuit dans lequel ces fonctions sont assumées par le logiciel d'un microcontrôleur, de qui permet d'éviter d'avoir à mesurer le courant. Une autre solution consiste à combiner ces deux mesures, une limitation du courant par matériel et une autre, par logiciel intervenant en interaction.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Electronically commutated motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronically commutated motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronically commutated motor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1839630

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.