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UC2852DTRG4 Fiches technique(PDF) 5 Page - Texas Instruments |
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UC2852DTRG4 Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 10 page UNITRODE INTEGRATED CIRCUITS 7 CONTINENTAL BLVD. • MERRIMACK, NH 03054 TEL. (603) 424-2410 • FAX (603) 424-3460 APPLICATION INFORMATION: A 100 Watt Power Factor Preregulator This circuit demonstrates a complete power factor preregulator based on the UC3852. This preregulatorwill supply up to 100 watts at 400VDC and exhibit power factor greater than 0.995 with less than 10% total harmonic distortion. Operating input range is 90V to 160V RMS at 50Hz to 60Hz. This design is intentionally simple, yet fully functional. The UC3852 can also be used in designs featuring soft start, over-voltage protection, wide power-line voltage operation, and fault latching. For more information on applying the UC3852, refer to Unitrode Application Note U–132. PARTS LIST UC1852 UC2852 UC3852 UDG-92004 C1 0.47 µF/250VAC X2 Class Polyester C2 1nF/16V Ceramic C3 68 µF/35V Aluminum Electrolytic C4 180pF/16V Ceramic C5 0.1 µF/16V Polyester or Ceramic C6 82 µF/450V Aluminum Electrolytic D1 2A/500V Bridge Rectifier (Collmer KBPC106 or Powertex MB11A02V60) D2 100mA/50V Switching Diode (1N4148) D3 2A/500V 250ns Recovery-Time Rectifier (Motorola MR856) IC1 UC3852N Power Factor Controller IC Q1 IRF830 4.5A/500V 1.5 Ω Power FET L1 680 µH (Renco RL3792 with 10 Turn 24 AWG Secondary) R1 150k Ω, 1⁄4W R2 0.2 Ω, 1⁄2W Carbon Composition R3 10 Ω, 1⁄4W R4 13.3k Ω, 1⁄4W R5 1M Ω, 1⁄4W R6 20k Ω, 1⁄4W R7 200k Ω, 1⁄2W R8 200k Ω, 1⁄2W 5 |
Numéro de pièce similaire - UC2852DTRG4 |
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Description similaire - UC2852DTRG4 |
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