公开(公告)号：US20240313656A1

公开(公告)日：2024-09-19

申请号：US18184913

申请日：2023-03-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Saad PERVAIZ ,  Johan STRYDOM ,  Michael LUEDERS ,  Laszlo BALOGH

IPC: H02M3/335 ,  H02M1/08

CPC classification number: H02M3/33507 ,  H02M1/08

Abstract: An apparatus includes: a first transistor coupled between a primary-side terminal and a bias terminal, the first transistor having a first control terminal; a second transistor coupled between the bias terminal and a ground terminal, the second transistor having a second control terminal; and a control circuit having a control input, a reference input, and first and second control outputs, the control input coupled to the bias terminal, the first control output coupled to the first control terminal, the second control output coupled to the second control terminal, and the control circuit configured to provide first and second control signals having a same switching frequency at the respective first and second control outputs responsive to a first voltage at the control input and a second voltage at the reference input.

公开(公告)号：US20220140823A1

公开(公告)日：2022-05-05

申请号：US17515077

申请日：2021-10-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Tuli Luthuli DAKE ,  Satish Kumar VEMURI ,  Ritesh Jitendra OZA ,  Laszlo BALOGH

IPC: H03K5/24 ,  H03K19/003

Abstract: An apparatus includes a differential input pair, a first resistor, a second resistor, and a comparator. The differential input pair having first and second differential inputs. The first differential input is adapted to be coupled to an output of a controller and the second differential input is adapted to be coupled to a signal ground of the controller. The first resistor is adapted to be coupled to a third resistor via the first differential input to form a first voltage divider. The second resistor is adapted to be coupled to a fourth resistor via the second differential input to form a second voltage divider. The comparator having first and second comparator inputs. The first comparator input is coupled between the first resistor and the first differential input. The second comparator input is coupled between the second resistor and the second differential input.