US 12,627,267 B1 · Hybrid power management integrated circuit

Abstract

A hybrid power management integrated circuit (PMIC) is provided. The hybrid PMIC is configured to generate a modulated voltage. In an embodiment, the hybrid PMIC includes a carrier voltage amplifier and a peak voltage amplifier. The carrier voltage amplifier operates based on a lower supply voltage and is always active to generate the modulated voltage up to a threshold voltage. In contrast, the peak voltage amplifier operates based on a higher supply voltage and is only active when a peak of the modulated voltage is above the threshold voltage. Given that the peak of the modulated voltage can be lower than the threshold voltage most of time, the hybrid PMIC will be able to generate the modulated voltage primarily based on the carrier voltage amplifier that operates based on the lower supply voltage. As a result, the hybrid PMIC can achieve a higher operating efficiency.

Claims21

Dependent claims

A hybrid power management integrated circuit (PMIC) comprising:

a voltage merging node coupled to a voltage output that outputs a modulated voltage;
a voltage generation circuit comprising:
a carrier voltage amplifier configured to generate a first modulated voltage based on a modulated target voltage and a first supply voltage;
and
a peak voltage amplifier configured to generate a second modulated voltage based on the modulated target voltage and a second supply voltage higher than the first supply voltage;
and
a control circuit configured to:
cause the voltage generation circuit to generate an initial modulated voltage comprising the first modulated voltage at the voltage merging node when a peak of the modulated voltage is lower than or equal to a threshold voltage;
and
cause the voltage generation circuit to generate the initial modulated voltage comprising the first modulated voltage and the second modulated voltage at the voltage merging node when the peak of the modulated voltage is higher than the threshold voltage.

7 more elements

Dependencies are inferred from the claim text.

Hybrid power management integrated circuit

Life of this patent

Hybrid power management integrated circuit

Life of this patent

Abstract

Claims21