Smart transformers are designed to help better manage power for cities, and the largest smart transformer in the world ...

Calculate the ac power delivered to the 8-Ω speaker for the circuit shown above. The circuit component values result in a dc base current of 6 mA, and the input signal (Vi) results in a peak base ...

Solid-state ac supplies replace motor-generator and tap-changing transformers to offer the same tests at the push of a button • Solid-state ac-power sources combine the variable-frequency and ...

Several companies are working on technologies that could replace large traditional power transformers with power semiconductors and smaller transformers mounted on circuit boards. Although they are ...

Measurement of average power in a 60Hz circuit (equivalent to V RMS × I RMS × cos(ø)) can be done by sampling the product of voltage and current and averaging. This requires four quadrant ...