[Robert Murray-Smith] doesn’t like the price of inverters to convert DC to AC. That led him to build a dynamotor, or what is sometimes called a motor-generator set. These devices are just DC motors ...

A standard part of travel kit for the 2020s is now a battery pack — a hefty lithium-ion cell with onboard electronics for USB charging, that ensures all of our devices stay topped up while we’re out ...

BEDFORD, Mass., July 29, 2025 /PRNewswire/ -- Best Electric Machine (BEM), an American innovator in variable-speed electric motor-generator systems, announces the launch of its patented ...

Opera software for motor and generator design lets users define complex behaviors such as friction, load, and speed-dependent torques. Multiphysics capabilities show the effects of temperature and of ...