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Patent Searching and Data


Title:
AUDIO AMPLIFIER ASSEMBLIES, PROCESSES, AND METHODS
Document Type and Number:
WIPO Patent Application WO/2019/165317
Kind Code:
A3
Abstract:
An amplifier having one or more channels where each channel includes a two half bridges (a master and slave sub-channel). The sub-channels can be connected either in parallel or in a full-bridge configuration via internal switches that route signals to a pair of speaker jacks. One switch in the amplifier has a first position that selectively connects the outputs of the master and slave sub-channel to the same input of the speaker load so that the two sub-channels will drive the speaker load in parallel and a second position where the output of the slave sub-channel is connected to another input of the speaker load so that the master sub-channel and the slave sub-channel will drive the speaker load in a Full-bridge configuration. A second switch has a first position that connects a second input of the speaker load to ground or reference potential of the sub-channels when the speaker load is to be driven in parallel and a second position that is a No-connect position that is used when the speaker load is driven in the Full-bridge configuration and a ground potential is not to be connected to the speaker.

Inventors:
LIND, Anders (27752 Paseo Barona, San Juan Capistrano, CA, 92675, US)
SKOGMO, Matthew (714 Mathewson Ave, Placentia, CA, 92870, US)
Application Number:
US2019/019307
Publication Date:
October 10, 2019
Filing Date:
February 22, 2019
Export Citation:
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Assignee:
QSC, LLC (1675 MacArthur Blvd, Costa Mesa, CA, 92626, US)
LIND, Anders (27752 Paseo Barona, San Juan Capistrano, CA, 92675, US)
SKOGMO, Matthew (714 Mathewson Ave, Placentia, CA, 92870, US)
International Classes:
H03F3/217; H03F1/02; H03F3/68
Foreign References:
US20140192989A12014-07-10
US20120230519A12012-09-13
JP2009253524A2009-10-29
EP1853086A12007-11-07
US20160360317A12016-12-08
Attorney, Agent or Firm:
WOOLSTON, Robert, G. et al. (Perkins Coie LLP, P.O. Box 1247Seattle, WA, 98111-1247, US)
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