公开(公告)号：US20230170796A1

公开(公告)日：2023-06-01

申请号：US17537595

申请日：2021-11-30

Applicant: Texas Instruments Incorporated

Inventor： Muthusubramanian VENKATESWARAN ,  Rohit NARULA ,  Preetam Charan Anand TADEPARTHY ,  Matthew John Ascher SCHURMANN ,  Rajesh VENUGOPAL

IPC: H02M3/155 ,  H02M1/08 ,  H02M1/32

CPC classification number: H02M3/155 ,  H02M1/08 ,  H02M1/32

Abstract: A multiphase controller includes an integrator enable terminal, a pulse width modulator, an error integrator, an open drain driver, and an integrator enable circuit. The integrator enable terminal is adapted to be coupled to the integrator enable terminal of a different instance of the multiphase controller. The pulse width modulator is configured to modulate a power stage. The error integrator is configured to control the pulse width modulator. The open drain driver is coupled to the integrator enable circuit. The integrator enable circuit is coupled to the pulse width modulator, the error integrator, the open drain driver, and the integrator enable terminal. The integrator enable circuit is configured to activate the open drain driver responsive to generation of a power stage control pulse by the pulse width modulator, and activate the error integrator responsive to a logic low signal at the integrator enable terminal.

公开(公告)号：US20210119435A1

公开(公告)日：2021-04-22

申请号：US16658311

申请日：2019-10-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mayank JAIN ,  Preetam TADEPARTHY ,  Rohit NARULA ,  Shobhit SINGHAL

IPC: H02H3/20 ,  H02H1/00 ,  G06F1/30

Abstract: An over/under voltage protection circuit includes a voltage input terminal, a digital-to analog converter, a comparator, and a control circuit. The comparator includes a first input coupled to an output of the digital-to-analog converter, and a second input coupled to the voltage input terminal. The control circuit includes an output coupled to an input of the digital-to-analog converter, and an input coupled to an output of the comparator. The control circuit is configured to set the digital-to-analog converter to generate an overvoltage fault threshold responsive to the output of the comparator indicating that voltage of a signal at the voltage input terminal exceeds a threshold currently generated by the digital-to-analog converter.