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International Rectifier's new Single Cycle Control (SCC) architecture greatly simplifies boost power factor correction (PFC) circuits commonly found in AC-DC converters powering notebook adapters, high-density servers, workstations and computer peripherals.
IR's new SCC architecture simplifies circuits, transforming the PFC controller design process from over a dozen iterative stages into a three-step, one-time activity. SCC eliminates the complex multiplier, current loop error amplifier and input line voltage sensing circuits, slashing component count as much as 75%, and performing with typical power factors of 0.998 with harmonic currents well within the IEC1000-3-2 specifications.
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SCC Technology Paper
as presented at PCIM Europe 03
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