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UC1854 High-Power Factor Preregulator

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Description

Product Folder Order Now Technical Documents Tools & Software Support & Community UC1854, UC2854, UC3854 SLUS336A * JUNE 1998 * R.
The UC1854 provides active-power factor correction for power systems that otherwise would draw nonsinusoidal current from sinusoidal power lines.

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Features

* 1 Control Boost PWM to 0.99 Power Factor
* Limit Line-Current Distortion to < 5%
* World-Wide Operation Without Switches
* Feedforward Line Regulation
* Average Current-Mode Control
* Low Noise Sensitivity
* Low Startup Supply Current

Applications

* Offline AC-to-DC Converters
* Medical, Industrial, Telecom, and IT Power Supplies
* Uninterruptible Power Supplies (UPS)

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