Integrated audio amplifier
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 16, 2002
Issued Date -
N/A
app pub date -
Sep 11, 2000
filing date -
Sep 18, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An audio amplifier comprising a power amplifier section, a power supply, and a control circuit. The power supply is made up of a positive and negative power supply section, with the positive supply section and the negative supply section delivering, respectively, positive and negative power inputs through the power amplifier section. Each power supply section comprises a transformer and a switch section to supply current pulses to the primary winding of the transformer. A filter circuit component is connected to an output of each secondary winding. The control circuit controls the strength of the current pulses of the power supply sections in accordance with the strength of the audio signal.
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