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AssigneeMicrochip Technology Incorporated
InventorsRohit Tirumala, Miguel Salcedo, Donald Humbert
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A circuit to modulate the power supply to track input or output voltages provided to or output by a plurality of amplifiers to reduce power dissipation is provided. The circuit may include a peak detection circuit configured to receive a plurality of voltages respectively corresponding to the plurality of amplifiers, and to detect and output information regarding a maximum instantaneous voltage from the received plurality of voltages, and a summing circuit configured to output a sum of the information regarding the maximum instantaneous voltage and an amplifier headroom voltage. A reference voltage may be provided for the supply voltage responsive to the output sum. The circuit may also include a scaling circuit configured to scale the output sum, and the reference voltage may be a scaled reference voltage output by the scaling circuit.
A circuit for modulating a power supply voltage provided to a plurality of amplifiers, the circuit comprising:
A circuit for modulating a power supply voltage provided to a plurality of amplifiers, the circuit comprising:
A circuit for modulating a power supply voltage provided to a plurality of amplifiers, the circuit comprising:
A circuit for modulating a power supply voltage provided to a plurality of amplifiers, the circuit comprising:
A method of modulating a power supply voltage provided to a plurality of amplifiers, the method comprising:
Dependencies are inferred from the claim text.