Fairchild Semiconductor
This application note provides an overview of power factor correction (PFC) fundamentals, emphasizing its significance in electrical circuits. The objective is to explain the concept of power factor, defined as the ratio of real power to apparent power, and its implications when controlling reactive and real power in electrical systems. The methodology includes discussing the behavior of power factors in both ideal and non-ideal conditions, noting that current waveforms are often non-sinusoidal, which leads to distortion that can cause inefficiencies. Results indicate that achieving a power factor close to 1 minimizes power losses and harmonics, thereby enhancing system reliability and performance. The increasing importance of PFC stems from evolving industry standards and growing market demands, with projections indicating significant growth in PFC controller usage by 2006. The note concludes by highlighting the vital role of PFC circuits in ensuring that current aligns with voltage to mitigate issues that could disrupt connected devices.
@article{d1558733-5094-49ca-9d72-f05228cd6c2c,
title={Power Factor Correction PFC Basics What},
author={Fairchild Semiconductor},
year={2026},
language={en}
}TY - JOUR TI - Power Factor Correction PFC Basics What AU - Fairchild Semiconductor PY - 2026 LA - en ER -
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