公开(公告)号：US20200099295A1

公开(公告)日：2020-03-26

申请号：US16428588

申请日：2019-05-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariel Dario MOCTEZUMA ,  Hasibur RAHMAN ,  William KRENIK ,  Yanqing LI

IPC: H02M3/158 ,  H02M1/088 ,  H01L29/78

Abstract: A system includes an inductor, and a first switch coupled between a first end of the inductor and a voltage supply node. The system also includes a second switch coupled between the first end of the inductor and a negative output supply node, wherein the second switch comprises a self-operated arrangement. The system also includes a third switch coupled between a second end of the inductor and a positive output supply node. The system also includes a fourth switch coupled between the second end of the inductor and a ground node. The system also includes a controller coupled to the first, second, third, and fourth switches.

公开(公告)号：US20200244267A1

公开(公告)日：2020-07-30

申请号：US16773273

申请日：2020-01-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariel Dario MOCTEZUMA

IPC: H03K19/09 ,  H03K19/00

Abstract: An output buffer circuit includes an output terminal, a transistor, and a resistor. The transistor includes a first terminal coupled to the output terminal, a second terminal coupled to a ground rail, and a third terminal coupled to an output signal source. The resistor includes a first terminal coupled to a fourth terminal of the transistor, and a second terminal coupled to the ground rail.

公开(公告)号：US20200099294A1

公开(公告)日：2020-03-26

申请号：US16428525

申请日：2019-05-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gary Franklin CHARD ,  Ariel Dario MOCTEZUMA ,  Hasibur RAHMAN ,  Alex Kwasi Nyavor TITRIKU ,  Srinath HOSUR

IPC: H02M3/158 ,  H02M3/157

Abstract: A system includes an inductor and a first switch coupled between a first end of the inductor and a voltage supply node. The system also includes a second switch coupled between the first end of the inductor and a negative output supply node. The system also includes a third switch coupled between a second end of the inductor and a positive output supply node. The system also includes a fourth switch coupled between the second end of the inductor and a ground node. The system also includes a controller coupled to the first, second, third, and fourth switches. The controller is configured to provide an inductor charge mode, a positive boost mode, a negative boost mode, a first rest state involving the first switch, and a second rest state involving the fourth switch.

公开(公告)号：US20200099293A1

公开(公告)日：2020-03-26

申请号：US16428440

申请日：2019-05-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariel Dario MOCTEZUMA ,  Hassan Pooya FORGHANI-ZADEH ,  Srinath HOSUR

IPC: H02M3/158 ,  H03K5/24

Abstract: A system includes a switching converter circuit and a monitoring circuit coupled to the switching converter circuit. The monitoring circuit includes a current estimation circuit configured to estimate an output current of the switching converter circuit. The monitoring circuit also includes a compare circuit configured to compare the estimated average output current with a threshold, wherein the compare circuit is configured to output an alert signal in response to the estimated output current being greater than the threshold.