David Peterson

Nov 29, 2024 | eepower.com | David Peterson

Variable frequency drives (VFD) solve the challenges of driving 3-phase motors with careful speed control and efficiency without being overly cost-prohibitive in most cases. They can be configured to run in applications spanning from small standalone machine centers to vast networks of huge machines. Internal parameters allow the user excellent motor control. When it comes to moving the big loads demanded for industrial operations, the 3-phase motor is usually called to be the heavy hitter.

Aug 13, 2024 | eepower.com | David Peterson

When we use the term ‘PWM,’ most people immediately recognize this as pulse width modulation, the conversion of a 0% to 100% scale of values into a digital value. Only the duration of a pulse needs to be measured to determine the analog value. PWM is indeed common, and its applications are numerous: from driving motors to simulating varying voltages to small load devices, and even some audio applications where true analog values are difficult or impractical.

Jul 9, 2024 | eepower.com | David Peterson

For many mechanical engineers and industrial technicians, the topic of grounding and bonding can be confusing, even with a considerable amount of experience in the field. Grounding and cable knowledge benefit engineers in various ways. It's important to understand wires and cables for many systems, including variable frequency drives, AC motors, and drive systems. There are many regulations and codes relating to ground wires, so it is an important topic.

Jun 25, 2024 | eepower.com | David Peterson

DC power supplies are a common, perhaps almost guaranteed, component of any control system. An often-discussed matter of DC power systems is the connection of the output to the ground system interconnecting industrial machines. Is that ground connection required? If not, is it a good or a bad idea to establish this connection? Most DC power supplies installed within control cabinets output the common 24 volts.

Jun 10, 2024 | eepower.com | David Peterson

Across the globe, trucks haul materials down highways, through busy cities, and between material processing facilities. Several major manufacturers, including Daimler, Scania, and Volvo, continue to exemplify advancements in electrification and autonomous technologies, working together to deliver goods from the first to the last mile. Autonomous truck. Image used courtesy of VolvoAutonomous passenger cars and taxi services enjoy the public's attention, and for good reason.