公开(公告)号：US20230198402A1

公开(公告)日：2023-06-22

申请号：US18173859

申请日：2023-02-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Manuel WIERSCH ,  Gerhard THIELE ,  Antonio PRIEGO ,  Johann Erich BAYER

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M1/0032

Abstract: An electrical system includes: 1) a buck converter; 2) a battery coupled to an input of the buck converter; and 3) a load coupled to an output of the buck converter. The buck converter includes a high-side switch, a low-side switch, and regulation loop circuitry coupled to the high-side switch and the low-side switch. The regulation loop circuitry includes: 1) a main comparator; 2) a bias current source coupled to the main comparator and configured to provide a bias current to the main comparator; and 3) a dynamic biasing circuit coupled to the main comparator and configured to add a supplemental bias current to the bias current in 100% mode of the buck converter. The supplemental bias current varies depending on an input voltage (VIN) and an output voltage (VOUT) of the buck converter.

公开(公告)号：US20240030817A1

公开(公告)日：2024-01-25

申请号：US18480074

申请日：2023-10-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Manuel WIERSCH ,  Gerhard THIELE ,  Antonio PRIEGO ,  Johann Erich BAYER

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M1/0032

Abstract: An electrical system includes: 1) a buck converter; 2) a battery coupled to an input of the buck converter; and 3) a load coupled to an output of the buck converter. The buck converter includes a high-side switch, a low-side switch, and regulation loop circuitry coupled to the high-side switch and the low-side switch. The regulation loop circuitry includes: 1) a main comparator; 2) a bias current source coupled to the main comparator and configured to provide a bias current to the main comparator; and 3) a dynamic biasing circuit coupled to the main comparator and configured to add a supplemental bias current to the bias current in 100% mode of the buck converter. The supplemental bias current varies depending on an input voltage (VIN) and an output voltage (VOUT) of the buck converter.

公开(公告)号：US20200099299A1

公开(公告)日：2020-03-26

申请号：US16141063

申请日：2018-09-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gerhard THIELE ,  Manuel WIERSCH

IPC: H02M3/158 ,  H02M1/08

Abstract: An integrated circuit comprising: a high-side pMOSFET comprising a drain and a gate; a node coupled to the drain of the high-side pMOSFET; a voltage-to-current circuit comprising a first nMOSFET and a first resistor, the first nMOSFET comprising a gate and a source, the first resistor comprising a terminal coupled to the source of the first nMOSFET; an error amplifier comprising an output port coupled to the gate of the first nMOSFET; a skip clamp nMOSFET comprising a source coupled to the output port of the error amplifier; and a current limit clamp pMOSFET comprising a source coupled to the output port of the error amplifier.