IP Library Granted Patent US 10,923,269
Granted Patent B2
US 10,923,269 · App. 15/780,360 · Granted Feb 16, 2021

Arrangement for compensating disturbance voltages induced in a transformer

Inventors: Michael Forster (Erding, DE); Martin Neudecker (Munich, DE)
Assignee: EPCOS AG
H01F27/289H01F17/04H01F27/34H01F27/38
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Quick Facts
Patent No.
US 10,923,269
App. No.
15/780,360
Granted
Feb 16, 2021
Kind
B2
Abstract

An arrangement for compensating disturbance voltages induced in a transformer is disclosed. In an embodiment an arrangement includes a transformer component comprising a transformer winding and an ancillary apparatus, wherein the ancillary apparatus comprises an auxiliary winding, wherein the auxiliary winding is connected in series with the transformer winding, and wherein the ancillary apparatus is arranged and designed such that an interference voltage induced in the transformer component is reduced by a counter-voltage induced in the ancillary apparatus.

Claims (39)

1. An arrangement for compensating for interference voltages induced in a linear single-phase transformer for signal transmission, the arrangement comprising:

a linear single-phase transformer for signal transmission comprising:

a core comprising two core halves, wherein a first core half comprises a central limb and an outer limb and a second core half comprises a central limb and an outer limb; and

a coil former with a central pipe and a transformer winding with a primary and a secondary winding arranged on the central pipe, wherein the central limbs of the first core half and the second core half are arranged in a hollow space of the central pipe and wherein between the outer limbs of the first core half and the second core half a residual air gap is located which supports an inducement of an interference voltage into the transformer winding; and

an ancillary apparatus comprising an auxiliary winding, wherein the auxiliary winding is connected in series with the primary winding of the transformer winding, and

wherein the ancillary apparatus is arranged and designed in such a way that an interference voltage induced into the transformer winding of the single-phase transformer is reduced by a counter-voltage induced in the ancillary apparatus;

wherein the auxiliary winding comprises a winding direction, and wherein the winding direction of the auxiliary winding runs in the opposite direction to a winding direction of the primary winding of the transformer winding; and

wherein the auxiliary winding is arranged around the single-phase transformer.

2. The arrangement according to claim 1 , wherein the auxiliary winding comprises at least one coil.

3. The arrangement according to claim 1 , wherein a ratio of a number of coils of the auxiliary winding to a number of coils of the transformer winding is 1:10.

4. The arrangement according to claim 1 , wherein the counter-voltage has the same magnitude as the interference voltage.

5. The arrangement according to claim 1 , wherein the counter-voltage is phase-shifted by 180° in comparison to the interference voltage.

6. The arrangement according to claim 1 , wherein the interference voltage is completely extinguished by the counter-voltage.

7. The arrangement according to claim 1 , wherein the auxiliary winding comprises a wire.

8. The arrangement according to claim 1 , wherein the ancillary apparatus is electrically conductively connected to a contact element of the single-phase transformer component or to a separate contact element.

9. An arrangement for compensating for interference voltages induced in a linear single-phase transformer for signal transmission, the arrangement comprising:

a linear single-phase transformer component for signal transmission comprising:

a core comprising two core halves, wherein a first core half comprises a central limb and an outer limb and a second core half comprises a central limb and an outer limb; and

a coil former with a central pipe and a transformer winding with a primary and a secondary winding arranged on the central pipe, wherein the central limbs of the first core half and the second core half are arranged in a hollow space of the central pipe and wherein between the outer limbs of the first core half and the second core half a residual air gap is located which supports an inducement of an interference voltage into the transformer winding; and

an ancillary apparatus, comprising an auxiliary winding, wherein the auxiliary winding is connected in series with the primary winding of the transformer winding;

wherein the ancillary apparatus is arranged and designed in such a way that an interference voltage induced into the transformer winding of the single-phase transformer component is reduced by a counter-voltage induced in the ancillary apparatus;

wherein the auxiliary winding comprises a winding direction, and wherein the winding direction of the auxiliary winding runs in the opposite direction to a winding direction of the primary winding of the transformer winding; and

wherein the single-phase transformer component and the ancillary apparatus represent separate component parts of the arrangement, wherein the ancillary apparatus comprises a core, and wherein the auxiliary winding is arranged around the core of the ancillary apparatus.

10. An arrangement for compensating for interference voltages induced in a linear single-phase transformer for signal transmission, the arrangement comprising:

a linear single-phase transformer component for signal transmission, comprising:

a core comprising two core halves, wherein a first core half comprises a central limb and an outer limb and a second core half comprises a central limb and an outer limb; and

a coil former with a central pipe and a transformer winding with a primary and a secondary winding arranged on the central pipe, wherein the central limbs of the first core half and the second core half are arranged in a hollow space of the central pipe and wherein between the outer limbs of the first core half and the second core half a residual air gap is located which supports an inducement of an interference voltage into the transformer winding; and

an ancillary apparatus, comprising an auxiliary winding, wherein the auxiliary winding is connected in series with the primary winding of the transformer winding;

wherein the ancillary apparatus is arranged and designed in such a way that an interference voltage induced into the transformer winding of the single-phase transformer component is reduced by a counter-voltage induced in the ancillary apparatus;

wherein the auxiliary winding comprises a winding direction, and wherein the winding direction of the auxiliary winding runs in the opposite direction to a winding direction of the primary winding of the transformer winding; and

wherein the auxiliary winding is wound around at least one outer limb of the core.

11. An arrangement for compensating for interference voltages induced in a linear single-phase transformer for signal transmission, the arrangement comprising:

a linear single-phase transformer component for signal transmission, comprising:

a core comprising two core halves, wherein a first core half comprises a central limb and an outer limb, and a second core half comprises a central limb and an outer limb; and

a coil former with a central pipe and a transformer winding with a primary and a secondary winding arranged on the central pipe, wherein the central limbs of the first core half and the second core half are arranged in a hollow space of the central pipe and wherein between the outer limbs of the first core half and the second core half a residual air gap is located which supports an inducement of an interference voltage into the transformer winding; and

an ancillary apparatus, comprising an auxiliary winding, wherein the auxiliary winding is connected in series with the primary winding of the transformer winding;

wherein the ancillary apparatus is arranged and designed in such a way that an interference voltage induced into the transformer winding of the single-phase transformer component is reduced by a counter-voltage induced in the ancillary apparatus; and

wherein the auxiliary winding comprises a winding direction, and wherein the winding direction of the auxiliary winding runs in the opposite direction to a winding direction of the primary winding of the transformer winding; and

wherein the counter-voltage has the same magnitude as the interference voltage.

Assignments (2)
CHANGE OF NAME Recorded Mar 15, 2023
From: EPCOS AG
To: TDK ELECTRONICS AG
Reel/Frame 063101/0709 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 10, 2018
From: FORSTER, MICHAEL; NEUDECKER, MARTIN
To: EPCOS AG
Reel/Frame 046826/0649 →
Priority Claims (1)
DE 10 2015 122 244 · Dec 18, 2015 · national
Continuity (1)
Related Publication 20190006086A1 · Jan 3, 2019