Average current-mode control (CMC) requires that the total waveform of the current be reconstructed for the control loop. This article presents the steps required to select the transformer and how to ...

In Part 1 of this two-part series, we presented a 3-phase, 480VAC motor circuit with its associated controls (Figure). We stepped through a logical, systematic approach to troubleshoot the main power ...

Single-phase and 3-phase AC squirrel cage induction motors need some type of control circuit to initiate a start or stop function. The two types of ladder control circuits commonly used are the 2-wire ...

The PG series of 120x240/12x24 VAC HPS Imperator control power transformers is designed to meet industrial applications in which electromagnetic devices, such as relays, solenoids and the like are ...

Luxtron has released its ThermAsset2 temperature controller, designed for direct, real-time control for power transformers down to 25 MVA. The ThermAsset2 is a much sought-after addition to the ...

Editor's Note: Here's another take on the transformerless AC line power supply, which finds use in some well-insulated, low-power devices. Our technical reviewer pointed out that C ac should be an ...

Piezoelectric transformers and power converters represent a frontier in power electronics, harnessing the direct electromechanical coupling of piezoelectric materials to transform electrical energy ...