Utility power plant generators are usually designed for a power factor (PF) of .8 to .9. If demand-side PF is lower than the designed PF, the generator current will rise above the equipment's rated ...

Low power factor reduces an electrical system’s distribution capacity by increasing current flow. Therefore, having a low power factor is inefficient and expensive. But what is power factor and what ...

Ideally, the power factor should be 1; then the load appears as a resistor to the AC source. However, in the real world, electrical loads not only cause distortions in AC current waveforms, but also ...

For the PDF version of this article, click here. Traditional power factor corrected designs utilize a boost topology to accomplish the input power factor correction (PFC) function. The boost topology ...

A bridgeless input power factor boost converter offers the potential for higher efficiency to meet increasing demands for power savings, especially in switch-mode powersupply applications at low-line ...

As a solid state light source, light-emitting diodes (LEDs) have been widely used due to their superior longevity, excellent efficacy, and friendly environmental attributes. Today, LEDs are replacing ...

Designed to perform in harmony with local electric utility conditions around the world, modern internal power supply units (PSUs) are more robust than ever. They operate normally over a wide range of ...