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PFC - high current toroidal choke 10A ... 63A
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Toroidal chokes for application at higher frequencies up to 150 kHz
Datasheet as PDF
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Field of application
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For primary and secondary clocked switch power supplies, not controlled and unregulated power supplies with transformer, electronic ballast for fluorescent lamps, U-converter, line-commutaded converter (also classic I-converter-fed), phase angle control dimmer and many more.
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Description
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PFC chokes are one or two winding chokes with toroidal cores made of soft magnetic powder material, which is pressed. The following materials are often used:
- MPP (79%-81% Ni - 17% Fe - 2%-4% Mo)
- HighFlux (50% Fe - 50% Ni)
- Cool My, Sendust (Fe Si 9,6 Al 5,4)
These cores are usable over a wide range of permeability and have a smaller Lo/Ln factor at lower permeabilities than at higher permeabilities. PFC toroidal chokes are storage chokes for the application in active power factor correction circuits. Lamination chokes, e.g. EI types are used in passive PFC circuits in contrary. This enables power factors of devices or systems with a cos φ ≈ 1. The chokes are conform to EN 61000-3-2. They are suitable for high frequencies up to 150 kHz. The toroidal core is the ideal geometrical shape for the magnetic flux, this results in a low magnetic stray field and low losses. The winding is constructed for low magnetic voltages and is wound with low stray field. The dimensions are determined by the energy E = 0,5 L I2.
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Drawing and table
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Type
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Current
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No-load
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Rated
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Energy
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DC
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Copper
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Total
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inductance
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inductance
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resistance
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weight
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weight
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[ A ]
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[ µH ]
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[ µH ]
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[ mWs ]
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[ mΩ ]
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[ g ]
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[ g ]
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DR...4
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10
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2300
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1000
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50
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120
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245
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765
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DR...4
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16
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1000
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425
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55
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45
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300
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770
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DR...4
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20
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240
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160
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32
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35
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350
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825
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DR...4
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25
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115
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85
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26
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16
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270
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730
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DR...4
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31,5
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93
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63
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31
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10
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310
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775
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DR...4
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40
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45
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33
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26
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9
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400
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885
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DR...4
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50
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18
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13
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16
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4
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430
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915
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DR...4
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63
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8,5
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6,3
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12
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3,5
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460
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960
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Technical changes and optimization reserved
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PFC - high current toroidal chokes 10A up to 63A
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open - standing version
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open - lying version
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potted - lying version
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Type
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Current
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No-lod
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Rated
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Energy
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DC
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Copper
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Total
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inductance
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inductance
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resistance
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weight
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weight
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[ A ]
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[ µH ]
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[ µH ]
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[ mWs ]
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[ mΩ ]
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[ g ]
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[ g ]
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DR...4
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10
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2300
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1000
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50
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120
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245
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705
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DR...4
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16
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1000
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425
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55
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46
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300
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770
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DR...4
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20
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240
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160
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32
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35
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350
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825
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DR...4
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25
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115
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85
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26
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16
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270
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730
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DR...4
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31,5
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93
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63
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31
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10
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310
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775
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DR...4
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40
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45
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33
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26
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9
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400
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885
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DR...4
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50
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18
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13
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16
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4
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430
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915
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DR...4
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63
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8,5
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6,3
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12
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3,5
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460
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960
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Technical changes and optimization reserved
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