Narrow voltage range multi-level output pulse modulated amplifier with one-bit hysteresis quantizer
AssigneeAnalog Devices Technology
InventorsDan Li, Jinhua Ni
Life of this patent
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Abstract
An amplifier system may include a power stage having inputs for three different supply voltages and an output for coupling to a load, a controller to generate control signals to the power stage that cause the power stage to vary an output voltage applied to the load among more than three distinct voltage levels, a monitor to provide a first control signal to the controller based on an input voltage signal, and a feedback system to provide a second control signal to the controller based on comparison of the output voltage and the input signal.
Claims30
An amplifier system, comprising:
- a power stage having inputs for three different supply voltages and an output for coupling to a load;
- a controller to generate control signals to the power stage that cause the power stage to vary an output voltage applied to the load among more than three distinct voltage levels;
- a monitor to provide a first control signal to the controller based on an input voltage signal;
- and
- a feedback system to provide a second control signal to the controller based on comparison of the output voltage and the input signal.
A method, comprising:
- generating an output voltage to a load, by a power stage having inputs for three different supply voltages;
- generating control signals to the power stage, by a controller, to cause the power stage to vary the output voltage applied to the load among more than three distinct voltage levels;
- providing a first control signal to the controller, by a monitor, based on an input voltage signal;
- and
- providing a second control signal to the controller, by a feedback system, based on comparison of the output voltage and the input signal.
A non-transitory computer-readable medium storing instructions executable by a processor, the processor execute the instructions to:
- generating an output voltage to a load, by a power stage having inputs for three different supply voltages;
- generating control signals to the power stage, by a controller, to cause the power stage to vary the output voltage applied to the load among more than three distinct voltage levels;
- providing a first control signal to the controller, by a monitor, based on an input voltage signal;
- and
- providing a second control signal to the controller, by a feedback system, based on comparison of the output voltage and the input signal.
Dependencies are inferred from the claim text.