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US 2021/0175869 A1Published application
Methods and systems for detecting and managing amplifier instability
AssigneeCirrus Logic International Semiconductor Ltd.
InventorDana J. TAIPALE
Life of this patent
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Abstract
A system may include a first input for receiving a first signal for driving an amplifier that drives a load, a second input for receiving a second signal driven by the amplifier, and an instability detector for detecting instability of a feedback loop for controlling the first signal based on comparison of the first signal and the second signal.
Claims21
A method comprising:
- receiving a first signal for driving an amplifier that drives a load;
- receiving a second signal driven by the amplifier;
- and
- detecting instability of a feedback loop for controlling the first signal based on comparison of the first signal and the second signal.
1 more element
A system comprising:
- a first input for receiving a first signal for driving an amplifier that drives a load;
- a second input for receiving a second signal driven by the amplifier;
- and
- an instability detector for detecting instability of a feedback loop for controlling the first signal based on comparison of the first signal and the second signal.
1 more element
A host device comprising:
- an amplifier that drives a load;
- and
- a processing subsystem comprising:
- a first input for receiving a first signal for driving an amplifier that drives a load;
- a second input for receiving a second signal driven by the amplifier;
- and
- an instability detector for detecting instability of a feedback loop for controlling the first signal based on comparison of the first signal and the second signal.
4 more elements
Dependencies are inferred from the claim text.