US 12,218,596 B2
Control device of a switching voltage regulator and switching voltage regulator
Ivan Floriani, Milan (IT); and Elena Brigo, Milan (IT)
Assigned to STMicroelectronics S.r.l., Agrate Brianza (IT)
Filed by STMicroelectronics S.r.l., Agrate Brianza (IT)
Filed on Jun. 15, 2022, as Appl. No. 17/841,182.
Claims priority of application No. 102021000017072 (IT), filed on Jun. 29, 2021.
Prior Publication US 2022/0416657 A1, Dec. 29, 2022
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/1582 (2013.01) [H02M 1/0025 (2021.05)] 20 Claims
OG exemplary drawing
 
1. A control device comprising:
a first input configured to receive a measurement signal representative of an output voltage of a switching circuit of a voltage regulator;
a state determination block coupled to the first input and configured to generate a signal of actual operating condition of the voltage regulator; and
a driving signals generation module configured to generate at least one switching command signal for the switching circuit from an error signal representative of a difference between the output voltage and a nominal voltage,
wherein the driving signals generation module comprises an error-compensation circuit having a transfer function and configured to generate a control signal from the error signal and an actual operating condition signal, the control signal being a function of the actual operating condition,
wherein the error-compensation circuit comprises an error amplifier having a gain variable as a function of an actual operating mode and a compensation network comprising at least one passive electrical component, and
wherein the at least one passive electrical component has an electrical quantity that is variable as a function of the actual operating condition, the compensation network being coupled to an output of the error amplifier.