Invention Grant
- Patent Title: Class D amplifier with current mode control
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Application No.: US17405940Application Date: 2021-08-18
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Publication No.: US11575354B2Publication Date: 2023-02-07
- Inventor: Eric Mendenhall
- Applicant: RGB Systems, Inc.
- Applicant Address: US CA Anaheim
- Assignee: RGB Systems, Inc.
- Current Assignee: RGB Systems, Inc.
- Current Assignee Address: US CA Anaheim
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H03F3/217
- IPC: H03F3/217 ; H03F3/187

Abstract:
An audio amplifier that implements current mode control without the use of an explicit or separate current mode sensor is disclosed. The audio amplifier may include a pair of feedback loops that provide current from a node located before an inductor of an output filter and current from a node located after the inductor of the output filter to an integrator circuit. The integrator circuit may be formed from existing circuitry of the audio amplifier controller. Thus, current mode control can be implemented without a separate current mode sensor.
Public/Granted literature
- US20220069783A1 CLASS D AMPLIFIER WITH CURRENT MODE CONTROL Public/Granted day:2022-03-03
Information query
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