Inductive coupling system with capacitive parallel compensation of the mutual self-inductance between the primary and the secondary windings
First Claim
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1. An inductive coupling system comprising:
- a magnetizable core with a primary yoke (2) which is provided with a primary winding (4) for connecting a primary AC voltage (Vp), and a secondary yoke (6) which is provided with a secondary winding (8), which primary yoke (2) and secondary yoke (6) have corresponding end surfaces (10, 14;
12, 16) for magnetic energy transfer between the primary yoke (2) and the secondary yoke (6), characterized in that said inductive coupling system comprises means (Cm) for capacitive parallel compensation of a mutual self-inductance (Lm) of the coupling system at the frequency of the primary AC voltage (Vp).
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Abstract
To improve the performance of an inductive coupling system, the magnetic coupling between the primary (4) and secondary (8) windings is increased by adding auxiliary windings (26,28) on the primary (2) and/or secondary (6) yokes of the assembly near the air gap (18) between the yokes. Capacitors (30,32) are connected to the auxiliary windings (26, 28) which, together with the inductance of the auxiliary windings, resonate at the operating frequency of the primary AC voltage (Vp). The effect is an improved magnetic coupling between the primary and secondary windings (4, 8) without increasing the size of the magnetic assembly.
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Citations
9 Claims
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1. An inductive coupling system comprising:
- a magnetizable core with a primary yoke (2) which is provided with a primary winding (4) for connecting a primary AC voltage (Vp), and a secondary yoke (6) which is provided with a secondary winding (8), which primary yoke (2) and secondary yoke (6) have corresponding end surfaces (10, 14;
12, 16) for magnetic energy transfer between the primary yoke (2) and the secondary yoke (6), characterized in that said inductive coupling system comprises means (Cm) for capacitive parallel compensation of a mutual self-inductance (Lm) of the coupling system at the frequency of the primary AC voltage (Vp). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a magnetizable core with a primary yoke (2) which is provided with a primary winding (4) for connecting a primary AC voltage (Vp), and a secondary yoke (6) which is provided with a secondary winding (8), which primary yoke (2) and secondary yoke (6) have corresponding end surfaces (10, 14;
Specification