EP 1585360 A1 20051012 - Power supply of phantom power supplied microphones
Title (en)
Power supply of phantom power supplied microphones
Title (de)
Stromversorgung von phantomgespeisten Mikrofonen
Title (fr)
Dispositif d'alimentation de microphones à alimentation fantôme
Publication
Application
Priority
EP 04450075 A 20040330
Abstract (en)
The invention relates to a microphone comprising at least one microphone capsule (9), at least one audio amplifier (10), and at least one additional power receiver, selected from the group of processors, control electronics (39), A/D and D/A converters (44, 46), LED displays (25), etc., and whose energy supply occurs from a phantom power unit (31) through the cable conductors (1, 2) of the audio cable, the so-called phantom power supply, and which capacitor microphone comprises a power supply circuit for the individual power receivers. <??>The invention is characterized in that the power supply circuit (11) comprises a control unit (12) that converts the direct current transmitted via the cable conductors (1, 2) of the audio cable into an alternating current, a transformer (13) connected to the control unit (12), and supply loops (15, 16, 17) for the individual power receivers, where supply loops (15, 16, 17) are inductively coupled by means of separate windings on the transformer (13) to the alternating current generated by the control unit (12) and to each other. <IMAGE>
IPC 1-7
IPC 8 full level
H04R 3/00 (2006.01); H02M 3/28 (2006.01); H04R 1/00 (2006.01); H04R 1/04 (2006.01); H04R 19/04 (2006.01)
CPC (source: EP)
H04R 1/04 (2013.01)
Citation (search report)
- [X] US 4541112 A 19850910 - KERN OTMAR [DE]
- [DA] DE 3933870 A1 19910418 - NEUMANN GMBH GEORG [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1585360 A1 20051012; EP 1585360 B1 20170510; CN 1678136 A 20051005; CN 1678136 B 20120125; JP 2005287051 A 20051013; JP 4711713 B2 20110629; TW 200614844 A 20060501; TW I354499 B 20111211
DOCDB simple family (application)
EP 04450075 A 20040330; CN 200510063706 A 20050330; JP 2005096498 A 20050329; TW 94109350 A 20050325