Patent ID: 11909317
Assignee: CIRRUS LOGIC INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. A method in a system having a power converter configured to generate a first supply voltage at a first supply output of a power supply, the power converter having a maximum allowable input power drawn from a power source, an energy storage element coupled to an output of the power converter at a top plate of the energy storage element, wherein the energy storage element is configured to store excess energy, and a second supply output configured to generate a second supply voltage lower than the first supply voltage, the method comprising:
tracking, with the second supply voltage, an envelope of an output signal generated by an amplifier coupled to the power supply when the amplifier consumes power from the second supply output; and
regulating, with the second supply voltage, a voltage at a bottom plate of the energy storage element when the amplifier consumes power from the first supply output.