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公开(公告)号：US20250079992A1
公开(公告)日：2025-03-06
申请号：US18769734
申请日：2024-07-11
Applicant: STMicroelectronics International N.V.
Inventor： Ivan Floriani
Abstract: Control device for a switching voltage regulator. A control loop circuit generates a control signal indicative of the difference between the output voltage of a switching circuit and a nominal voltage. A drive signal generator is coupled to the control loop circuit and receives a measurement signal indicative of the current flowing in the switching circuit. The drive signal generator also receives a reference signal correlated to the control signal and generates pulse-width modulated switching signals for the switching circuit to maintain the output voltage at a regulated value. The drive signal generator compares the measurement signal with the reference signal at the peaks of the measurement signal in the first measurement mode and at the valleys of the measurement signal in the second. An offset generator generates an offset signal which is added to the control signal at a transition between the first and the second measurement modes.
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公开(公告)号：US20250079993A1
公开(公告)日：2025-03-06
申请号：US18769760
申请日：2024-07-11
Applicant: STMicroelectronics International N.V.
Inventor： Ivan Floriani
Abstract: The control device for a regulator with a switching circuit. The device includes an oscillator that provides a clock signal having a switching period; a circuit that provides a comparison signal indicative of a comparison between an input voltage and an output voltage; and a circuit that generates a signal to drive the switches of the switching circuit as a function of an error between the output voltage and a nominal voltage. The device controls, within the switching period, a first phase having a current path between the input and output node through the inductive element; a second phase having a current path between the input and common node through the inductive element; and a third phase having a current path between the output and common node through the inductive element. The sequence of the first, second, and third phases is a function of the comparison signal.
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3.发明公开公开(公告)号：US20240210978A1
公开(公告)日：2024-06-27
申请号：US18390441
申请日：2023-12-20
Applicant: STMicroelectronics International N.V.
Inventor： Ivan Floriani , Mauro Jonathan Pellegrini , Salvatore Cannavacciuolo
CPC classification number: G05F1/575 , H02M1/0009 , H02M1/0025 , H02M3/139 , H02M3/1582
Abstract: A control device for a switching voltage regulator of the buck-boost type having a switching circuit. The control device is configured to perform a current-control of the switching circuit and is formed by a filter and a loop control circuit. The filter is configured to be coupled to a resistive element of the switching circuit and to provide a filtered signal starting from a measurement signal indicative of a current flowing through the resistive element. The loop control circuit is configured to generate one or more switching control signals to drive the switching circuit, as a function of the filtered signal. The filter is configured to receive a filter control signal indicative of an actual operating mode of the switching voltage regulator. The filter is variable as a function of the filter control signal.
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