Vipin Bothra is staff market development engineer, N.A. Industrial Business Unit, in STMicroelectronics’ Schaumburg, Ill., office. He received a BSEE from Visveswaraya Regional College of Engineering, Nagpur University, India. Email address: vipin.bothra@st.com Web site: http://www.st.com
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November 17, 2005[Design View / Design Solution] Minimize The Cost Impact Of Your Power-Factor-Correction Circuit
Most applications that use power factor correction (PFC) are mandated by regulatory requirements like the IEC1000-3-2 harmonic reduction requirement in force since January 1, 2001. The regulation places certain limits on harmonic currents drawn by power supplies. This, in turn, requires an active PFC circuit. Some low-power, cost-sensitive applications still manage to use a passive PFC circuit. Comprised of only inductors and capacitors, a passive PFC circuit is simple and efficient for...
