Motor applications are on the rise, and the dramatic reduction in the cost of power MOSFET devices over the last decade, particularly MOSFET gate-drive ICs for low voltage (less than 100 volts) ...

When designing a motor control circuit, it’s vital to determine how to deliver the high current required to drive the motor. Designers must choose whether to use monolithic integrated circuits (ICs) ...

Voltage unbalance can be a common steady-state power quality problem that is harmful to 3-phase electric motors. The condition can cause overheating and insulation damage. The cost of damage to motors ...

Legacy designs of variable frequency drives (VFDs) used optocouplers or pulse transformers for isolation and mated them together with gate driver ICs. A more integrated approach, though, uses ...

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 voltage sag protection system from case study 2 was installed in a chemical plant that produces methanol and ammonia. The development of power electronics technology and applications in industrial ...

Medium-voltage motors are critical to a facility’s power system. Not only are they expensive, but their failure can have crippling, long-lasting impacts on a plant’s operation. As such, properly ...

Electric drives require effective protection against overloads and short circuits. Both phenomena cause motor disruption and create a risk of damage to the motor. This could lead to a potentially ...

From traditional fuses to eFuses, understanding the advantages, limitations, and use cases of each technology helps engineers ...

It should come as no shock that the dated 12-V auto electrical systems are no longer viable in new vehicles, especially hybrid electrical vehicles (HEVs) and the new all-electric vehicles (EVs). The ...

All major manufacturers of three-phase ac induction motors offer “inverter-duty” or “inverter-ready” models, but while these motors have inverter-rated insulation to protect the windings, the bearings ...