Invention Grant
- Patent Title: Rectifier circuit for monitoring dc offset of a single-supply audio power amplifier
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Application No.: US15164404Application Date: 2016-05-25
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Publication No.: US09648420B2Publication Date: 2017-05-09
- Inventor: Dallas Dwight Hickerson , Kenneth Dale Finlon
- Applicant: Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
- Applicant Address: US GA Peachtree City
- Assignee: Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
- Current Assignee: Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
- Current Assignee Address: US GA Peachtree City
- Agent Laurence S. Roach, Esq.
- Main IPC: H03G11/00
- IPC: H03G11/00 ; H04R3/00 ; H03F5/00 ; H03F1/52 ; H03F3/185 ; H03F3/45 ; H03F3/181 ; H03F3/20 ; H04R3/12
Abstract:
An audio power amplifier arrangement includes an audio power amplification integrated circuit having two loudspeaker outputs. A rectifier circuit includes a first diode having a cathode connected to one of the two loudspeaker outputs and an anode connected to a rectifier output node. A second diode has an anode connected to the one loudspeaker output. A first resistor has a first end connected to a cathode of the second diode and a second end connected to the rectifier output node. A capacitor has a first end connected to the rectifier output node and a second end connected to electrical ground. A second resistor has a first end connected to the rectifier output node and a second end connected to electrical ground.
Public/Granted literature
- US20160269826A1 RECTIFIER CIRCUIT FOR MONITORING DC OFFSET OF A SINGLE-SUPPLY AUDIO POWER AMPLIFIER Public/Granted day:2016-09-15
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