公开(公告)号：US20230344467A1

公开(公告)日：2023-10-26

申请号：US18347201

申请日：2023-07-05

Applicant: Texas Instruments Incorporated

Inventor： Michael Lueders ,  Giacomo Calabrese ,  Nicola Bertoni

IPC: H04B5/00 ,  H05K3/46 ,  H05K1/16

CPC classification number: H04B5/005 ,  H04B5/0093 ,  H05K3/4673 ,  H05K1/162 ,  H05K1/165

Abstract: A circuit support structure includes a first metal layer, a second metal layer, isolation material containing the first and second metal layers, an isolation circuit, a first plurality of contact pads, and a second plurality of contact pads. The isolation circuit includes a first circuit element in the first metal layer and a second circuit element in the second metal layer and electrically isolated from the first circuit element by the isolation material. The first plurality of contact pads is adapted to be coupled to a first integrated circuit on the circuit support structure and includes a first contact pad electrically coupled to the first circuit element. The second plurality of contact pads is adapted to be coupled to a second integrated circuit on the circuit support structure and includes a second contact pad electrically coupled to the second circuit element.

公开(公告)号：US20190089262A1

公开(公告)日：2019-03-21

申请号：US15859135

申请日：2017-12-29

Applicant: Texas Instruments Incorporated

Inventor： Maurizio Granato ,  Giacomo Calabrese ,  Giovanni Frattini

IPC: H02M3/335 ,  H02M1/088

Abstract: An isolated DC-DC converter 400 includes a plurality of modules, an output node, and a transformer with a secondary side having first and second terminals and a secondary side ground. Ones of the modules includes a first low-side switch coupled between the first terminal and a low-voltage node, and a second low-side switch is coupled between the second terminal and the low-voltage node. A first high-side switch is coupled between the first terminal and a high-voltage node, and is activated by a voltage at the second terminal. A second high-side switch is coupled between the second terminal and the high-voltage node, and is activated by a voltage at the first terminal. The isolated DC-DC converter also includes a switch controller to open and close the first and second low-side switches at times corresponding to a frequency of the converter.

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：US20240120964A1

公开(公告)日：2024-04-11

申请号：US18542381

申请日：2023-12-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Giacomo Calabrese ,  Nicola Bertoni ,  Misha Ivanov

IPC: H05K1/16 ,  H05K3/46

CPC classification number: H04B5/75 ,  H04B5/266 ,  H05K1/162 ,  H05K1/165 ,  H05K3/4673

Abstract: A package substrate includes a first metal layer, a second metal layer, isolation material containing the first and second metal layers, an isolation circuit, a first plurality of contact pads, and a second plurality of contact pads. The isolation circuit includes a first circuit element in the first metal layer and a second circuit element in the second metal layer and electrically isolated from the first circuit element by the isolation material. The first plurality of contact pads is adapted to be coupled to a first integrated circuit on the package substrate and includes a first contact pad coupled to the first circuit element. The second plurality of contact pads is adapted to be coupled to a second integrated circuit on the package substrate and includes a second contact pad coupled to the second circuit element.

公开(公告)号：US10727754B2

公开(公告)日：2020-07-28

申请号：US16367691

申请日：2019-03-28

Applicant: Texas Instruments Incorporated

Inventor： Pierluigi Albertini ,  Maurizio Granato ,  Giacomo Calabrese ,  Roberto Giampiero Massolini ,  Joyce Marie Mullenix ,  Giovanni Frattini

IPC: H02M3/335 ,  H03L7/08 ,  H02M1/00

Abstract: Disclosed examples include isolated dual active bridge (DAB) DC to DC converters with first and second bridge circuits, a transformer with a sense coil, and a secondary side control circuit to provide secondary side switching control signals to regulate an output voltage or current signal by controlling a phase shift angle between switching transitions of the secondary side switching control signals and switching transitions of a secondary side clock signal, where the secondary side control circuit includes a clock recovery circuit to synchronize the secondary side clock signal to transitions in a sense coil voltage signal of the sense coil.

公开(公告)号：US20190386658A1

公开(公告)日：2019-12-19

申请号：US16555350

申请日：2019-08-29

Applicant: Texas Instruments Incorporated

Inventor： Giacomo Calabrese ,  Maurizio Granato ,  Giovanni Frattini

IPC: H03K17/691 ,  H03K19/00 ,  H03K5/08

Abstract: Disclosed examples include isolated load switch driver circuits to drive a load, including an impedance circuit that receives a digital input voltage signal from a signal source, and selectively allows a current signal to flow from the signal source to charge a buffer capacitor. An impedance control circuit controls the impedance circuit to limit the current signal in response to the buffer capacitor reaching a first threshold voltage, and an output circuit provides an output isolated from the digital input voltage signal to switch the load. A signaling circuit selectively enables the output circuit to draw power from the buffer capacitor in response to the voltage of the buffer capacitor reaching the first threshold voltage.

公开(公告)号：US10291138B2

公开(公告)日：2019-05-14

申请号：US15712330

申请日：2017-09-22

Applicant: Texas Instruments Incorporated

Inventor： Pierluigi Albertini ,  Maurizio Granato ,  Giacomo Calabrese ,  Roberto Giampiero Massolini ,  Joyce Marie Mullenix ,  Giovanni Frattini

IPC: H02M3/335 ,  H03L7/08

CPC classification number: H02M3/33592 ,  H02M3/33584 ,  H02M2001/0003 ,  H03L7/0807

Abstract: Disclosed examples include isolated dual active bridge (DAB) DC to DC converters with first and second bridge circuits, a transformer with a sense coil, and a secondary side control circuit to provide secondary side switching control signals to regulate an output voltage or current signal by controlling a phase shift angle between switching transitions of the secondary side switching control signals and switching transitions of a secondary side clock signal, where the secondary side control circuit includes a clock recovery circuit to synchronize the secondary side clock signal to transitions in a sense coil voltage signal of the sense coil.

公开(公告)号：US20190052263A1

公开(公告)日：2019-02-14

申请号：US16161128

申请日：2018-10-16

Applicant: Texas Instruments Incorporated

Inventor： Giacomo Calabrese ,  Maurizio Granato ,  Giovanni Frattini

IPC: H03K17/691 ,  H03K5/08 ,  H03K19/00

CPC classification number: H03K17/691 ,  H03K5/08 ,  H03K19/0005

Abstract: Disclosed examples include isolated load switch driver circuits to drive a load, including an impedance circuit that receives a digital input voltage signal from a signal source, and selectively allows a current signal to flow from the signal source to charge a buffer capacitor. An impedance control circuit controls the impedance circuit to limit the current signal in response to the buffer capacitor reaching a first threshold voltage, and an output circuit provides an output isolated from the digital input voltage signal to switch the load. A signaling circuit selectively enables the output circuit to draw power from the buffer capacitor in response to the voltage of the buffer capacitor reaching the first threshold voltage.

公开(公告)号：US11716117B2

公开(公告)日：2023-08-01

申请号：US17167753

申请日：2021-02-04

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Michael Lueders ,  Giacomo Calabrese ,  Nicola Bertoni

IPC: H04B3/00 ,  H04B5/00 ,  H01L21/20 ,  H01L21/50 ,  H01L21/56 ,  H01L21/60 ,  H01L23/31 ,  H01L23/34 ,  H01L23/48 ,  H01L23/60 ,  H01L23/522 ,  H01L23/528 ,  H01L25/00 ,  H01L25/065 ,  H01L49/02 ,  H05K3/46 ,  H05K1/16

CPC classification number: H04B5/005 ,  H04B5/0093 ,  H05K1/162 ,  H05K1/165 ,  H05K3/4673

Abstract: A circuit support structure includes a first metal layer, a second metal layer, isolation material containing the first and second metal layers, an isolation circuit, a first plurality of contact pads, and a second plurality of contact pads. The isolation circuit includes a first circuit element in the first metal layer and a second circuit element in the second metal layer and electrically isolated from the first circuit element by the isolation material. The first plurality of contact pads is adapted to be coupled to a first integrated circuit on the circuit support structure and includes a first contact pad electrically coupled to the first circuit element. The second plurality of contact pads is adapted to be coupled to a second integrated circuit on the circuit support structure and includes a second contact pad electrically coupled to the second circuit element.

公开(公告)号：US10454369B2

公开(公告)日：2019-10-22

申请号：US15591107

申请日：2017-05-10

Applicant: Texas Instruments Incorporated

Inventor： Filip Savic ,  Giacomo Calabrese ,  Giovanni Frattini

IPC: H02M3/156 ,  H02M1/00

Abstract: A switched voltage converter may be controlled with load current feedforward control loop in addition to an output voltage feedback loop. The converter includes a first switch device that is controlled to open and close at a selected switching rate with a selected duty cycle. The first switch device is coupled in series with an inductor and conducts current through the inductor while the first switch is closed. A second switch device conducts current from the inductor to an output capacitor and to load while the first switch is open to produce an output voltage and a resulting load current through the load. The load current is measured in a continuous manner and a load current feedforward control signal is generated that is representative of the load current. The switch rate and/or duty cycle of the first switch is adjusted in response to the load current feedforward control signal.