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公开(公告)号：US20240136927A1
公开(公告)日：2024-04-25
申请号：US18485634
申请日：2023-10-12
Applicant: STMicroelectronics (Alps) SAS
Inventor： Vratislav Michal
Abstract: A power conversion circuit includes a first branch having a first switch and a second switch electrically connected to each other in series between a first node and a second node. An inductive element has a first terminal connected to a mid-point of the first and second switches. A capacitor has a first electrode coupled to the first node. A third node is configured to receive a first voltage, and the first voltage is referenced to the second node. A third switch is configured to electrically connect the third node to a second terminal of the inductive element.
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公开(公告)号：US20230291366A1
公开(公告)日：2023-09-14
申请号：US18174213
申请日：2023-02-24
Inventor： Vratislav Michal , Nicolas Moeneclaey , Jean-Luc Patry
CPC classification number: H03F3/087 , H03F3/45475 , H03F2203/45288
Abstract: The present disclosure relates to a device comprising a first transimpedance amplifier comprising a first amplification stage with a first MOS transistor, a second transimpedance amplifier comprising a second amplification stage with a second MOS transistor, and a current source series-connected with the first and second amplification stages, the current source having a first terminal coupled to the drain of the first MOS transistor and a second terminal coupled to the drain of the second MOS transistor.
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公开(公告)号：US20180191317A1
公开(公告)日：2018-07-05
申请号：US15393550
申请日：2016-12-29
Applicant: STMicroelectronics (Alps) SAS
Inventor： Vratislav Michal , Denis Cottin , Patrik Arno , Nicolas Marty
IPC: H03F3/45
CPC classification number: H03F3/45071 , H03F1/3211 , H03F3/45 , H03F3/45085 , H03F2200/471 , H03F2203/45544 , H03F2203/45594
Abstract: An embodiment circuit includes a first voltage divider coupled between a first voltage level and a ground potential. The circuit further includes an error amplifier having a first input terminal coupled to a node between a first resistive element and a second resistive element of the first voltage divider. The circuit further includes a second voltage divider coupled between a second voltage level and a reference voltage, wherein a second input terminal of the error amplifier is coupled to a node between a third resistive element and a fourth resistive element of the second voltage divider, and wherein an output voltage of the error amplifier is configured to control a potential difference between the first voltage level and the second voltage level.
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公开(公告)号：US09502972B1
公开(公告)日：2016-11-22
申请号：US14959048
申请日：2015-12-04
Applicant: STMicroelectronics (Alps) SAS
Inventor： Vratislav Michal , Denis Cottin
IPC: H02M3/07
Abstract: A charge-pump device receives two complementary driving signals and a DC signal that are applied to a charge-pump stage containing a full-wave rectifier bridge configured to deliver a DC output signal. The bridge includes active switches controllable by control signals present at two control nodes. The charge-pump device further receives complementary auxiliary signals that are respectively synchronous with the complementary driving signals but have faster edges. Two resistive capacitive filters filter the complementary auxiliary signals to generate control signals at the two control nodes for controlling actuation of the active switches in the bridge.
Abstract translation: 电荷泵装置接收两个互补驱动信号和一个DC信号，该DC信号被施加到电荷泵级，该电荷泵级包含配置成输送DC输出信号的全波整流桥。 该桥包括由两个控制节点上存在的控制信号控制的有源开关。 电荷泵装置还接收互补的辅助信号，其互补驱动信号分别同步但具有较快的边沿。 两个电阻性电容滤波器对互补辅助信号进行滤波，以在两个控制节点处产生控制信号，以控制桥中的有源开关的致动。
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公开(公告)号：US10520554B2
公开(公告)日：2019-12-31
申请号：US16269331
申请日：2019-02-06
Inventor： Vratislav Michal , Michel Ayraud
Abstract: A circuit includes an amplifier having a first power terminal configured to be coupled to a supply voltage and a second power terminal configured to be coupled to a reference potential. The circuit further includes a first impedance element coupled between a first input terminal of the amplifier and a first output terminal of the amplifier. The circuit additionally includes a second impedance element coupled between the first input terminal and the reference potential. The amplifier is configured to output a first voltage at a second output terminal of the amplifier in response to the supply voltage being greater than an output voltage at the first output terminal of the amplifier. The amplifier is further configured to output a second voltage at the second output terminal of the amplifier in response to the supply voltage being less than the output voltage at the first output terminal of the amplifier.
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Patent Agency Ranking
公开(公告)号：US20160344285A1
公开(公告)日：2016-11-24
申请号：US14959048
申请日：2015-12-04
Applicant: STMicroelectronics (Alps) SAS
Inventor： Vratislav Michal , Denis Cottin
IPC: H02M3/07
Abstract: A charge-pump device receives two complementary driving signals and a DC signal that are applied to a charge-pump stage containing a full-wave rectifier bridge configured to deliver a DC output signal. The bridge includes active switches controllable by control signals present at two control nodes. The charge-pump device further receives complementary auxiliary signals that are respectively synchronous with the complementary driving signals but have faster edges. Two resistive capacitive filters filter the complementary auxiliary signals to generate control signals at the two control nodes for controlling actuation of the active switches in the bridge.
Abstract translation: 电荷泵装置接收两个互补驱动信号和一个DC信号，该DC信号被施加到电荷泵级，该电荷泵级包含配置成输送DC输出信号的全波整流桥。 该桥包括由两个控制节点上存在的控制信号控制的有源开关。 电荷泵装置还接收互补的辅助信号，其互补驱动信号分别同步但具有较快的边沿。 两个电阻性电容滤波器对互补辅助信号进行滤波，以在两个控制节点处产生控制信号，以控制桥中的有源开关的致动。
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公开(公告)号：US20230333581A1
公开(公告)日：2023-10-19
申请号：US18296068
申请日：2023-04-05
Applicant: STMicroelectronics (ALps) SAS
Inventor： Vratislav Michal
Abstract: An integrated circuit includes a temperature-independent voltage generating circuit configured to generate a bandgap voltage by summing a voltage proportional to absolute temperature and a voltage complementary to absolute temperature, a temperature threshold detection circuit including a resistive voltage divider bridge configured to generate a reference voltage equal to a fraction of the bandgap voltage and a comparator circuit configured to compare the voltage proportional to absolute temperature with the reference voltage.
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公开(公告)号：US20190187218A1
公开(公告)日：2019-06-20
申请号：US16269331
申请日：2019-02-06
Inventor： Vratislav Michal , Michel Ayraud
IPC: G01R31/3835 , G01R31/36 , H03F3/45 , G01R1/30 , H03F1/02
CPC classification number: G01R31/3835 , G01R1/30 , G01R17/02 , G01R31/3646 , H03F1/0205 , H03F3/45179 , H03F3/45183 , H03F2200/129 , H03F2200/261 , H03F2200/471 , H03F2203/45151
Abstract: A circuit includes an amplifier having a first power terminal configured to be coupled to a supply voltage and a second power terminal configured to be coupled to a reference potential. The circuit further includes a first impedance element coupled between a first input terminal of the amplifier and a first output terminal of the amplifier. The circuit additionally includes a second impedance element coupled between the first input terminal and the reference potential. The amplifier is configured to output a first voltage at a second output terminal of the amplifier in response to the supply voltage being greater than an output voltage at the first output terminal of the amplifier. The amplifier is further configured to output a second voltage at the second output terminal of the amplifier in response to the supply voltage being less than the output voltage at the first output terminal of the amplifier.
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9.发明授权公开(公告)号：US09917506B2
公开(公告)日：2018-03-13
申请号：US14975138
申请日：2015-12-18
Applicant: STMicroelectronics (Alps) SAS
Inventor： Vratislav Michal
CPC classification number: H02M3/04 , H02M3/156 , H02M3/1588 , H02M2001/0054 , Y02B70/1466 , Y02B70/1491
Abstract: A method and apparatus for detecting a critical duty cycle that maximizes an output power of a boost converter is provided. In the method and apparatus, the boost converter may be operated at or below the critical duty cycle. In the method and apparatus, a first voltage that is a function of an output voltage of a boost converter and voltage drops across a first set of parasitic resistances of the boost converter is detected. A second voltage that is a function voltage drops across a second set of parasitic resistances of the boost converter is also detected. The voltages are compared to determine the critical duty cycle and the boost converter is operated in accordance with a duty cycle that does not exceed the critical duty cycle.
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公开(公告)号：US20180191318A1
公开(公告)日：2018-07-05
申请号：US15393485
申请日：2016-12-29
Inventor： Vratislav Michal , Michel Ayraud
CPC classification number: H03F3/45179 , G01R1/30 , G01R31/362 , G01R31/3682 , H03F1/0205 , H03F3/45183 , H03F2200/129 , H03F2200/261 , H03F2200/471 , H03F2203/45151
Abstract: A circuit includes an amplifier having a first power terminal configured to be coupled to a supply voltage and a second power terminal configured to be coupled to a reference potential. The circuit further includes a first impedance element coupled between a first input terminal of the amplifier and a first output terminal of the amplifier. The circuit additionally includes a second impedance element coupled between the first input terminal and the reference potential. The amplifier is configured to output a first voltage at a second output terminal of the amplifier in response to the supply voltage being greater than an output voltage at the first output terminal of the amplifier. The amplifier is further configured to output a second voltage at the second output terminal of the amplifier in response to the supply voltage being less than the output voltage at the first output terminal of the amplifier.
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