Distortion compensation method for class-D audio amplifier
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 6, 2018
Issued Date -
N/A
app pub date -
Mar 27, 2017
filing date -
Mar 27, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A distortion compensation method for a class-D audio amplifier has the steps of connecting a compensation circuit to the class-D audio amplifier; providing a feed-forward signal from the compensation circuit to the loop filter, wherein the feed-forward signal contains replicate high-frequency components replicated from original high-frequency components of the class-D audio amplifier; and adding the feed-forward signal to those of the class-D audio amplifier. By adding the feed-forward signal, PWM-intermodulated distortion resulted from the high-frequency components is reduced. The class-D audio amplifier still maintains loop stability without affecting its phase margin.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully