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公开(公告)号：US11757346B2
公开(公告)日：2023-09-12
申请号：US17370674
申请日：2021-07-08
Applicant: STMicroelectronics S.r.l.
Inventor： Maurizio Ricci , Marco Sautto , Simone Bellisai , Eleonora Chiaramonte , Luigi Arpini , Davide Betta
CPC classification number: H02M1/008 , H02M1/0025 , H02M3/156 , H02M3/157 , H02M3/158
Abstract: An embodiment circuit comprises first and second output nodes with an inductor arranged therebetween, and first and second switches coupled to opposed ends of the inductor. The switches are switchable between non-conductive and conductive states to control current flow through the inductor and produce first and second output voltages. The current intensity through the inductor is compared with at least one reference value. Switching control circuitry is coupled with the first and second switches, the first and second output nodes, and current sensing circuitry, which is configured to control the switching frequency of the first and second switches as a function of the output voltages and a comparison at the current sensing circuitry. The switching control circuitry is configured to apply FLL-FFWD processing to produce the reference values as a function of a timing signal, targeting maintaining a constant target value for the converter switching frequency.
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公开(公告)号：US20220021306A1
公开(公告)日：2022-01-20
申请号：US17370674
申请日：2021-07-08
Applicant: STMicroelectronics S.r.l.
Inventor： Maurizio Ricci , Marco Sautto , Simone Bellisai , Eleonora Chiaramonte , Luigi Arpini , Davide Betta
Abstract: An embodiment circuit comprises first and second output nodes with an inductor arranged therebetween, and first and second switches coupled to opposed ends of the inductor. The switches are switchable between non-conductive and conductive states to control current flow through the inductor and produce first and second output voltages. The current intensity through the inductor is compared with at least one reference value. Switching control circuitry is coupled with the first and second switches, the first and second output nodes, and current sensing circuitry, which is configured to control the switching frequency of the first and second switches as a function of the output voltages and a comparison at the current sensing circuitry. The switching control circuitry is configured to apply FLL-FFWD processing to produce the reference values as a function of a timing signal, targeting maintaining a constant target value for the converter switching frequency.
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公开(公告)号：US12027964B2
公开(公告)日：2024-07-02
申请号：US18364811
申请日：2023-08-03
Applicant: STMicroelectronics S.r.l.
Inventor： Maurizio Ricci , Marco Sautto , Simone Bellisai , Eleonora Chiaramonte , Luigi Arpini , Davide Betta
CPC classification number: H02M1/008 , H02M1/0025 , H02M3/156 , H02M3/157 , H02M3/158 , H02M1/0003
Abstract: An embodiment circuit comprises first and second output nodes with an inductor arranged therebetween, and first and second switches coupled to opposing ends of the inductor. The switches are switchable between non-conductive and conductive states to control current flow through the inductor and produce first and second output voltages. The current intensity through the inductor is compared with at least one reference value. Switching control circuitry is coupled with the first and second switches, the first and second output nodes, and current sensing circuitry, which is configured to control the switching frequency of the first and second switches as a function of the output voltages and a comparison at the current sensing circuitry. The switching control circuitry is configured to apply FLL-FFWD processing to produce the reference values as a function of a timing signal, targeting maintaining a constant target value for the converter switching frequency.
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