Dławiki korekcyjne mocy PFC (Power Factor Correction) są elementami elektronicznymi stosowanymi w układach zasilania w celu poprawy współczynnika mocy (power factor) w obwodach prądu przemiennego (AC). Wiele urządzeń i aplikacji elektronicznych wymaga przetwarzania prądu przemiennego na prąd stały, co może wpływać na obniżenie współczynnika mocy, szczególnie jeśli zastosowany jest diodowy mostek prostowniczy bez kontroli fazy.
Power chokes especially constructed for the use in active power factor correction circuits.
In combination with active boost PFC circuits these chokes achieve a high efficiency and a power factor between 0.90 and 0.99.
They comply with EN61000-3-2.
Outstanding characteristics
Toroidal powder core constructions have the benefits of low leakage flux and high saturation currents, making them unsensitive against current Peaks. In our design we also concentrate on a low parasitic capacitance winding, resulting in excellent EMV properties over a broad frequency range. Low loss materials also contribute to the excellent performance of the chokes and low heating effect.
| Range SDR | |||||||||
| Order no. | Nominal current | Inductance | DCR | Nominal inductance | Picture |  |
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| [A] | Lo [μH] | [Ω] [+10 %] | Ldc [μH] | ||||||
| 151.800 | 1 | 1100 | 0,62 | 900 | 1 | ||||
| 151.801 | 1 | 2300 | 0,62 | 1450 | 1 | ||||
| 151.802 | 1,5 | 700 | 0,32 | 600 | 1 | ||||
| 151.803 | 2 | 2250 | 0,34 | 1130 | 2 |  |
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| 151.804 | 2 | 1100 | 0,34 | 800 | 2 | ||||
| 151.806 | 2,5 | 600 | 0,20 | 500 | 2 | ||||
| 151.807 | 3 | 1750 | 0,19 | 780 | 3 |  |
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| 151.808 | 3 | 850 | 0,19 | 600 | 3 | ||||
| 151.809 | 3,5 | 1850 | 0,18 | 730 | 3 | ||||
| 151.810 | 3,5 | 900 | 0,18 | 600 | 3 | ||||
| 151.811 | 4 | 610 | 0,12 | 460 | 3 | ||||
| 170.800 | 5 | 1150 | 0,14 | 700 | 4 |  |
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| 170.801 | 6 | 750 | 0,08 | 450 | 4 | ||||
| 170.802 | 8 | 950 | 0,08 | 550 | 4 | ||||
| 170.803 | 9 | 550 | 0,058 | 350 | 4 | ||||
| 170.804 | 12 | 400 | 0,037 | 220 | 4 | ||||
| 170.805 | 15 | 350 | 0,026 | 210 | 4 | ||||
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| 170.806 | 18 | 450 | 0,026 | 220 | 5 | ||||
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| 170.807 | 10 | 295 | 0,030 | 200 | 6 | ||||
| 170.808 | 18 | 450 | 0,026 | 220 | 6 | ||||
General data: Nominal current: RMS value, ambient temperature 60 °C. No load inductance: measured at 10 kHz, 50 mV. Tolerance ± 15 %.
DC-resistance: nominal value at 25°C, tolerance + 10 %
