Enhanced efficiency planar transducers

Details Enhanced efficiency planar transducers Enhanced efficiency planar transducers

1997-09-24

1999-05-04

Le, Huyen

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

381408, 381399, H04R 2500

Patent

active

059012358

ABSTRACT:
Planar magnetic transducers including diaphragms having electrical conductors thereon which are mounted within frames so that spaced magnets are disposed on opposite sides of central sound producing surface areas of the diaphragms. Pole elements are provided in spaced relationship between each of the magnets and extend inwardly toward the diaphragms so to form pole extensions for causing magnetic flux from the poles of the magnets proximate to the diaphragms to extend more densely and generally parallel to the electrical conductors between the magnets and the pole elements. Openings for acoustic waves are provided between the pole elements and adjacent magnets.

REFERENCES:
patent: 3873784 (1975-03-01), Doschek

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