公开(公告)号：US20250125799A1

公开(公告)日：2025-04-17

申请号：US18587497

申请日：2024-02-26

Applicant: Texas Instruments Incorporated

Inventor： Sowmya Sankaranarayanan ,  Kang Wei

IPC: H03K17/22 ,  G01R15/04 ,  G01R19/165

Abstract: An example apparatus includes: first circuitry configured to verify a set of reference voltages is stable; and second circuitry including a first transistor, a second transistor, a first number of parallel transistors, and a second number of parallel transistors, the second circuitry configured to, in response to the verification: produce a trip voltage based on: a comparison of a threshold voltage of the first transistor and a threshold voltage of the second transistor; and a reference voltage selected from the set and provided to a control terminal of the first transistor; and adjust the value of the trip voltage based on a comparison between a first current mirror having a first number of parallel transistors and a second current mirror connected to a second number of parallel transistors.

公开(公告)号：US20250123646A1

公开(公告)日：2025-04-17

申请号：US18821302

申请日：2024-08-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kang Wei ,  Boqiang Xiao ,  Timothy Merkin ,  Joseph Sankman

IPC: G05F1/575 ,  G05F1/563 ,  G05F1/595 ,  H02M3/07

Abstract: An integrated circuit includes a first transistor coupled between a power input and a power output, the first transistor being an N-type transistor and having a first transistor control input; a first amplifier stage having a reference input, a feedback input, and a first amplifier output, the feedback input coupled to the power output; a second amplifier stage having an amplifier input and a second amplifier output, the amplifier input coupled to the first amplifier output, and the second amplifier output coupled to the first transistor control input; and a first biasing circuit coupled to the first transistor control input, the first biasing circuit having an electrical control input coupled to the power output.