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公开(公告)号：US20190052173A1
公开(公告)日：2019-02-14
申请号：US15995331
申请日：2018-06-01
Applicant: Texas Instruments Incorporated
Inventor： Ivan Shumkov , Erich Bayer , Joerg Kirchner , Ruediger Ganz , Michael Lueders , Martin Priess , Nicola Rasera
IPC: H02M3/158
CPC classification number: H02M3/1582
Abstract: Disclosed examples include inverting buck-boost DC-DC converter circuits with a switching circuit to alternate between first and second buck mode phases for buck operation in a first mode, including connecting an inductor and a capacitor in series between an input node and a reference node to charge the inductor and the capacitor in the first buck mode phase, and connecting the inductor and the capacitor in parallel between an output node and the reference node to discharge the inductor and the capacitor to the output node. For boost operation in a second mode, the switching circuit alternates between connecting the inductor and the capacitor in series between the input node and the reference node to discharge the inductor and charge the capacitor in a first boost mode phase, and connecting the inductor between the input node and the reference node to charge the inductor and connecting the capacitor between the first output node and the reference node to discharge the capacitor to deliver power to the output node in a second boost mode phase.
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公开(公告)号：US20240364210A1
公开(公告)日：2024-10-31
申请号：US18309001
申请日：2023-04-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Florian Neveu , Stefan Schimonsky , Joerg Kirchner
CPC classification number: H02M1/32 , H02M1/0009 , H02M3/157 , H02M3/1582
Abstract: The techniques and circuits, described herein, include solutions for pass-through operation including overcurrent protection in buck-boost converters. In some aspects, first and second switches selectively couple inputs of a peak current comparator to inputs of an error amplifier during pass-through operation. As part of peak current control scheme, one of the peak current comparator inputs is coupled to a current sensor that senses a current through an inductor of the buck-boost converter. As a result, an output of the error amplifier tracks the inductor current during pass-through mode, which may be utilized to implement inductor overcurrent protection in the pass-through mode.
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Patent Agency Ranking
公开(公告)号：US11552566B2
公开(公告)日：2023-01-10
申请号：US17176077
申请日：2021-02-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Joerg Kirchner , Stefan Dietrich , Ivan Shumkov , Christian Harder
Abstract: To facilitate current sensing for valley current-controlled power converters, an example apparatus includes a comparator having a first terminal, a second terminal, and an output. A first transistor has a first drain coupled to the first terminal of the comparator. A second transistor has a second drain coupled to the first terminal of the comparator. A third transistor has a third drain coupled to the second terminal of the comparator.
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公开(公告)号：US11303210B2
公开(公告)日：2022-04-12
申请号：US16708066
申请日：2019-12-09
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ivan Shumkov , Christian Harder , Erich-Johann Bayer , Joerg Kirchner , Gaetano Petrina
Abstract: Aspects of the present disclosure provide for a circuit. In at least some examples, the circuit includes a first switch coupled between a first node and a second node and a second switch coupled between a third node and the second node. The circuit further includes a resistor coupled between the second node and a fourth node and a capacitor comprising a first terminal coupled to the fourth node and a second terminal. The circuit further includes a transistor comprising a drain terminal coupled to the third node, a source terminal coupled to a fifth node, and a gate terminal and an amplifier comprising a first input terminal coupled to the fifth node, a second input terminal coupled to the fourth node, and an output terminal coupled to a sixth node.
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15.发明授权公开(公告)号：US10924015B2
公开(公告)日：2021-02-16
申请号：US15990382
申请日：2018-05-25
Applicant: Texas Instruments Incorporated
Inventor： Joerg Kirchner , Stefan Dietrich , Ivan Shumkov , Christian Harder
Abstract: Methods, systems, and apparatus to facilitate current sensing for valley current-controlled power converters are disclosed. An example apparatus includes a comparator including a first terminal, a second terminal, and an output. The apparatus further includes a first transistor including a first drain coupled to the first terminal of the comparator. The apparatus further includes a second transistor including a second drain coupled to the first terminal of the comparator. The apparatus further includes a third transistor including a third drain coupled to the second terminal of the comparator.
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公开(公告)号：US20190305676A1
公开(公告)日：2019-10-03
申请号：US16126705
申请日：2018-09-10
Applicant: Texas Instruments Incorporated
Inventor： Stefan Dietrich , Joerg Kirchner , Ruediger Ganz
Abstract: A timer for creating a stable on time. The timer may have a reference voltage source, and an input voltage source. The voltage sources providing voltage that can be applied to a various circuit components such as capacitors, inductors, resistors, diodes, transistors, or other components. The reference voltage source may also be modified by a set of transistors coupled as a diode before being seen by an input of a timer comparator. The reference and input voltage source signals, which may be modified by circuit components, are compared by the timer comparator and then output as a timer control signal. The timer control signal may control a voltage converter, or the switches of a voltage converter.
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公开(公告)号：US10014777B1
公开(公告)日：2018-07-03
申请号：US15672429
申请日：2017-08-09
Applicant: Texas Instruments Incorporated
Inventor： Ivan Shumkov , Erich Bayer , Joerg Kirchner , Ruediger Ganz , Michael Lueders , Martin Priess , Nicola Rasera
IPC: H02M3/158
CPC classification number: H02M3/1582
Abstract: Disclosed examples include inverting buck-boost DC-DC converter circuits with a switching circuit to alternate between first and second buck mode phases for buck operation in a first mode, including connecting an inductor and a capacitor in series between an input node and a reference node to charge the inductor and the capacitor in the first buck mode phase, and connecting the inductor and the capacitor in parallel between an output node and the reference node to discharge the inductor and the capacitor to the output node. For boost operation in a second mode, the switching circuit alternates between connecting the inductor and the capacitor in series between the input node and the reference node to discharge the inductor and charge the capacitor in a first boost mode phase, and connecting the inductor between the input node and the reference node to charge the inductor and connecting the capacitor between the first output node and the reference node to discharge the capacitor to deliver power to the output node in a second boost mode phase.
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