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公开(公告)号：US10447161B2
公开(公告)日：2019-10-15
申请号：US15837914
申请日：2017-12-11
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Erich Bayer , Ivan Shumkov , Nicola Rasera , Stefan Reithmaier , Roland Bucksch , Christian Rott , Florian Neveu
Abstract: In an example, a dual-phase inverting buck-boost power converter for use with at least first and second energy storage elements includes an inverting buck-boost power converter and an inverting boost converter. In an example, the inverting buck-boost power converter is coupled between an input node and an output node of the dual-phase inverting buck-boost power converter and includes a first plurality of switches operable to couple to the first energy storage element, wherein the inverting buck-boost power converter is operable to supply a first load current. In an example, the inverting boost converter is coupled in parallel with the inverting buck-boost power converter between the input node and the output node of the dual-phase inverting buck-boost power converter and includes a second plurality of switches operable to couple to the first and the second energy storage elements, wherein the inverting boost converter is operable to supply a second load current.
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公开(公告)号：US20230308004A1
公开(公告)日：2023-09-28
申请号：US18143808
申请日：2023-05-05
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ivan Shumkov , Erich-Johann Baher , Ruediger Ganz
CPC classification number: H02M1/0009 , H02M3/1582
Abstract: An example of a power supply system includes a switching voltage regulator comprising at least one switch configured to conduct an input current to generate an output voltage responsive to a switching signal and based on an input voltage. The system also includes a current regulator configured to generate a current sample voltage based on an amplitude of the input current relative to a reference current defining a maximum average amplitude setpoint of the input current to set a switching time defining a switching period of the at least one switch. The system also includes a switch controller configured to provide the switching signal to control the at least one switch based on an amplitude of the output voltage relative to a reference voltage and based on the switching time.
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公开(公告)号：US11342846B2
公开(公告)日：2022-05-24
申请号：US16992662
申请日：2020-08-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Johann Erich Bayer , Rüdiger Ganz , Ivan Shumkov
IPC: H02M3/158 , G01R19/165 , H03K5/24 , H02M1/00 , H02M3/157
Abstract: A controller includes a comparator having an inverting input coupled to a voltage converter output, a non-inverting input coupled to a voltage source, and an output. The controller includes a timer having a start input coupled to the converter that indicates that current through a converter inductor is less than a threshold; a stop input coupled to the comparator output; and an output having a digital value corresponding to the time between receiving asserted signals at start input and at stop input. The controller includes a time comparator having a first input coupled to the timer output and a second input to receive a time value. The time comparator asserts one of its outputs based on the digital and time values. The controller includes an accumulator coupled to the time comparator outputs, the accumulator configured to maintain, increase, or decrease an output value based on the asserted time comparator output.
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公开(公告)号：US12088184B2
公开(公告)日：2024-09-10
申请号：US18143808
申请日：2023-05-05
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ivan Shumkov , Erich-Johann Bayer , Ruediger Ganz
CPC classification number: H02M1/0009 , H02M3/1582
Abstract: An example of a power supply system includes a switching voltage regulator comprising at least one switch configured to conduct an input current to generate an output voltage responsive to a switching signal and based on an input voltage. The system also includes a current regulator configured to generate a current sample voltage based on an amplitude of the input current relative to a reference current defining a maximum average amplitude setpoint of the input current to set a switching time defining a switching period of the at least one switch. The system also includes a switch controller configured to provide the switching signal to control the at least one switch based on an amplitude of the output voltage relative to a reference voltage and based on the switching time.
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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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Patent Agency Ranking
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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7.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：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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公开(公告)号：US12184178B2
公开(公告)日：2024-12-31
申请号：US18311602
申请日：2023-05-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Johann Erich Bayer , Rüdiger Ganz , Ivan Shumkov
Abstract: A system has an input and an output. The system includes a voltage converter, including first transistor coupled to the input and to a first switching node, second transistor coupled to the first switching node and to ground, third transistor coupled to a second switching node and to the output, fourth transistor coupled to the second switching node and to ground, and an inductor having a first terminal coupled to the first switching node and a second terminal coupled to the second switching node. The system also includes a controller coupled to the voltage converter, the controller including a state machine and a plurality of drivers to control the transistors of the voltage converter. The state machine is adaptable to cause the second and fourth transistors to conduct and the first and third transistors not to conduct, in response to current through the inductor being less than a current threshold.
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公开(公告)号：US20240396421A1
公开(公告)日：2024-11-28
申请号：US18791602
申请日：2024-08-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ivan Shumkov , Erich-Johann Bayer , Ruediger Ganz
Abstract: An example of a power supply system includes a switching voltage regulator comprising at least one switch configured to conduct an input current to generate an output voltage responsive to a switching signal and based on an input voltage. The system also includes a current regulator configured to generate a current sample voltage based on an amplitude of the input current relative to a reference current defining a maximum average amplitude setpoint of the input current to set a switching time defining a switching period of the at least one switch. The system also includes a switch controller configured to provide the switching signal to control the at least one switch based on an amplitude of the output voltage relative to a reference voltage and based on the switching time.
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