公开(公告)号：US11171570B2

公开(公告)日：2021-11-09

申请号：US16741856

申请日：2020-01-14

Applicant: Texas Instruments Incorporated

Inventor： Cetin Kaya ,  Paul Brohlin ,  Michael Lueders ,  Johan Strydom

IPC: H02M3/337 ,  H02M3/335 ,  H02M1/32 ,  H02M1/00

Abstract: Methods, systems, and apparatus to facilitate high side control of a switching power converter are disclosed. An example apparatus includes a latch including a first node coupled to a first source of a first switch and an output coupled to a first gate of the first switch; a first diode coupled to the first node and a second node; a second diode coupled to the second node and ground; a second switch coupled to a voltage source and the second node; and a third switch including a third gate coupled to the second switch, a third source coupled to the second node, and a third drain coupled to the latch.

公开(公告)号：US11031933B2

公开(公告)日：2021-06-08

申请号：US16731847

申请日：2019-12-31

Applicant: Texas Instruments Incorporated

Inventor： Michael Lueders ,  Johan Strydom ,  Cetin Kaya ,  Maik Peter Kaufmann

IPC: H02M1/08 ,  H03K17/22 ,  H02M1/36 ,  H02M3/335

Abstract: A startup circuit includes an enhancement mode transistor with a drain coupled to a startup circuit input, a source coupled to a first node, and a gate coupled to a second node. The startup circuit includes a current limiting circuit that controls a current path between the second node and a startup circuit output node based on a current sense voltage signal representing a current through the enhancement mode transistor, and a voltage regulation circuit controls a voltage of the second node to regulate a startup circuit output voltage of the startup circuit output node.

公开(公告)号：US10439503B1

公开(公告)日：2019-10-08

申请号：US16122646

申请日：2018-09-05

Applicant: Texas Instruments Incorporated

Inventor： Cetin Kaya ,  Paul Brohlin ,  Michael Lueders ,  Johan Strydom

IPC: H02M3/337 ,  H02M3/335 ,  H02M1/00 ,  H02M1/32

Abstract: Methods, systems, and apparatus to facilitate high side control of a switching power converter are disclosed. An example apparatus includes a latch including a first node coupled to a first source of a first switch and an output coupled to a first gate of the first switch; a first diode coupled to the first node and a second node; a second diode coupled to the second node and ground; a second switch coupled to a voltage source and the second node; and a third switch including a third gate coupled to the second switch, a third source coupled to the second node, and a third drain coupled to the latch.

公开(公告)号：US09991794B2

公开(公告)日：2018-06-05

申请号：US15077080

申请日：2016-03-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Michael Lueders ,  Erich Bayer ,  Thomas Schaeffner ,  Giacomo Calabrese

IPC: H02M3/158

CPC classification number: H02M3/158

Abstract: An inverting buck voltage converter constructed of a switched-mode hybrid topology, with a capacitive input stage and an inductive output stage. The input stage operates as a charge pump to charge a flying capacitor connected in series with an inductor in the output stage. Clock circuitry generates first and second non-overlapping clock phases. In the second clock phase, the flying capacitor is charged to the input voltage, with a flying node between the flying capacitor and the output inductor connected at ground through a rectifier, while in the first clock phase, the flying capacitor supports the inductor current. The arrangement of the flying capacitor and inductor is such that the voltage appearing at the output terminal is inverted from the input voltage. Continuous output current is provided. Current limiting techniques protect the flying capacitor from overcurrent conditions.

公开(公告)号：US20160329809A1

公开(公告)日：2016-11-10

申请号：US14840183

申请日：2015-08-31

Applicant: Texas Instruments Incorporated ,  Texas Instruments Deutschland GmbH

Inventor： Maurizio Granato ,  Giovanni Frattini ,  Pietro Giannelli ,  Michael Lueders ,  Christian Rott

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M2001/0003

Abstract: Described examples include DC to DC converters and systems with switching circuitry formed by four series-connected switches, inductors connected between the ends of the switching circuitry and corresponding output nodes, and with a flying capacitor coupled across interior switches of the switching circuitry and a second capacitor coupled across the ends of the switching circuitry. A control circuit operates the switching circuit to control a voltage signal across the output nodes using a first clock signal and a phase shifted second clock signal to reduce output ripple current and enhance converter efficiency using valley current control. The output inductors are wound on a common core in certain examples.

Abstract translation: 所描述的示例包括DC-DC转换器和具有由四个串联连接的开关构成的开关电路的系统，连接在开关电路的端部和对应的输出节点之间的电感器，以及耦合在开关电路的内部开关和第二 电容器耦合在开关电路的两端。 控制电路操作开关电路以使用第一时钟信号和相移的第二时钟信号跨输出节点控制电压信号，以减少输出纹波电流并且使用谷值电流控制来提高转换器效率。 在某些实例中，输出电感器缠绕在公共芯上。