It’s impossible to balance line-to-line voltages perfectly in three-phase circuits, so they typically differ by a few volts or more. However, if voltage unbalance exceeds 1%, it can markedly decrease ...

The topic of motors and motor control techniques is wide and varied. Part one of this two-part article will cover the principles of alternating-current (AC) motor operation and control. Part two will ...

Q: Would you happen to know the answer to this non-wood question? Given a choice of a single phase motor or 3-phase motor, which is best? A: The Wood Doctor does indeed know the answer. No question ...

The first installment of this two-part series focused on debugging brushed-DC motor systems. Now the second installment will share some tips for stepper motor systems and provide general bench testing ...

In the original version of this article, the second figure contained an error. The image has been updated. It’s important for engineers to have a good, working ...