The road to energy efficient HVAC may lead to variablespeed compressor technology and new electronics to drive it. Most engineers know that heating, ventilation, and air conditioning (HVAC) systems ...

Appliances such as refrigerators and space-heating and -cooling equipment for buildings and homes account for a large slice of U.S. electricity consumption. More-sophisticated appliance controls ...

When it comes to motors, drives, and variable speed technology, manufacturers keep rolling out new products designed to increase efficiency. Below are just a few of the latest offerings that ...

In this sidebar to a more general motion control article, the author uses cultural differences between China and Japan to explain why controllers for permanent magnet motors in air conditioners must ...

When consumers are buying a new or replacement furnace from an HVAC contractor, it shouldn’t be surprising that many get that “deer in the headlights” expression on their faces when a tech or ...

Speed, torque, and horsepower are three inter-related parameters in motor control. The speed of a motor, measured in revolutions per minute (rpm), defines a motor's ability to spin at a rate per unit ...

The difference that air conditioning has made to motoring is hard to overlook. Gone are the days where the heat of the engine creeping through the bulkhead would leave you dripping with sweat; also ...