Differential mode and common mode choke
AssigneeSchneider Toshiba Inverter Europe SAS
InventorsYves-Laurent ALLAERT, Cyrille PLANQUE
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Abstract
The invention relates to a differential mode and common mode choke comprising: a ferromagnetic core comprising three branches (1, 2, 3) extending between a bottom part (5) and a top part (4), a first coil (b1) wound around the first lateral branch (1), a second coil (b3) wound around the second lateral branch (3), the first lateral branch (1) being separated from the top part (4) by a first air gap (e1) and from the bottom part (5) by a second air gap (e10), the second lateral branch (3) being separated from the top part (4) by a first air gap (e3) and from the bottom part (5) by a second air gap (e30), the central branch (2) being separated from the top part (4) by a first air gap (e2) and from the bottom part (5) by a second air gap (e20).
Claims8
Differential mode and common mode choke comprising:
- a ferromagnetic core comprising three branches (1, 2, 3) extending between a bottom part (5) and a top part (4), said three branches comprising a first lateral branch (1), a second lateral branch (3) and a central branch (2),
- a first coil (b1) wound around the first lateral branch (1),
- a second coil (b3) wound around the second lateral branch (3), said choke being characterized in that:
- the first lateral branch (1) is separated from the top part (4) by a first air gap (e1) and from the bottom part (5) by a second air gap (e10),
- the second lateral branch (3) is separated from the top part (4) by a first air gap (e3) and from the bottom part (5) by a second air gap (e30),
- the central branch (2) is separated from the top part (4) by a first air gap (e2) and from the bottom part (5) by a second air gap (e20),
- said first coil (b1) has a first inductance value,
- said second coil (b2) has a second inductance value, equal to the first inductance value.
Dependencies are inferred from the claim text.