Transcription of Section 4. Power Design CORE SELECTION - …
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Section 4. Power Design CORE SELECTION - …
Section 4. Power Design i(20)gauss) p(2000 gauss)SaturationFlux DensityBm GaussCore Loss (mw/cm )(Typical)@100 kHz, 1000 Gauss25 C100 C25 C100 C25 C60 C100 CF3000460049003700100180225P250065005000 390012580*125R230065005000370014010070K1 500350046003900J5000550043002500W+10,000 12,00043002500 INTRODUCTIONF errite is an ideal core material for transformers, invertersand inductors in the frequency range 20 kHz to 3 MHz, due tothe combination of low core cost and low core losses. Tapewound cores do offer higher flux densities and better tempera-ture stability, advantages which may off-set their higher is an excellent material for high frequency (20 kHz to3 MHz) inverter Power supplies. Ferrites may be used in thesaturating mode for low Power , low frequency operation (<50watts and 10 kHz). For high Power operation a two transformerdesign, using a tape wound core as the saturating core and aferrite core as the output transformer, offers maximum perfor-mance. The two transformer Design offers high efficiency excel-lent frequency stability, and low switching cores may also be used in fly-back transformerdesigns, which offer low core cost, low circuit cost and highvoltage capability.
Section 4. Power Design µi(20)gauss) µp(2000 gauss) Saturation Flux Density Bm Gauss Core Loss (mw/cm³) (Typical) @100 kHz, 1000 Gauss 25°C 100°C
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