The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 14, 2018

Filed:

Sep. 24, 2015
Applicant:

Icepower A/s, Søborg, DK;

Inventors:

Kennet Skov Andersen, Søborg, DK;

Eskil Jørgensen, Vaerløse, DK;

Assignee:

ICEpower a/s, Søborg, DK;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/30 (2006.01); H03F 3/183 (2006.01); H03F 3/217 (2006.01);
U.S. Cl.
CPC ...
H03F 1/305 (2013.01); H03F 3/183 (2013.01); H03F 3/217 (2013.01); H03F 2200/03 (2013.01);
Abstract

A switching power conversion system and a method for start-up pop minimization in an audio amplifier assembly are disclosed. The switching power conversion system comprises a forward path including a compensator, a switching power stage and a demodulation filter. The system further comprises a DC-servo and a pre-charging circuit and a sequence control unit configured for providing a start-up sequence where the compensator and DC-servo are correctly biased and a bootstrap capacitor within the switching power stage is charged before the switching power stage is started. Hereby, it is e.g. possible to minimize the audible start-up pop in audio amplifier assemblies.


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