公开(公告)号：US20230018036A1

公开(公告)日：2023-01-19

申请号：US17374228

申请日：2021-07-13

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Shatabda Saha

IPC: G05F1/575 ,  G05F1/573

Abstract: Disclosed is a power supply that automatically switches between a voltage regulation mode and an over current protection mode, as needed. The power supply includes a voltage regulator that generates a first control voltage for applying to the control terminal of a pass transistor during a voltage regulation mode to maintain an output voltage at a desired voltage level. The power supply includes a current limiter that generates a second control voltage for applying to the control terminal of the pass transistor during an over current protection mode to prevent an output current from rising above a maximum output current limit. The power supply includes additional circuitry that detects when over current protection is required and automatically switches the control voltage applied to the control terminal from the first control voltage to the second control voltage or vice versa, as necessary. Also disclosed is an associated power supply method.

公开(公告)号：US12224666B2

公开(公告)日：2025-02-11

申请号：US17748772

申请日：2022-05-19

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Shatabda Saha

IPC: H02M3/158 ,  H02M1/00 ,  H02M1/08 ,  H02M1/14

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a dc-dc converter control circuit and methods of manufacture. The structure includes a dynamic pulse width modulation (PWM) circuit which converts a sense voltage to a variable current in response to a load current being above a predetermined threshold, and a ramp generator circuit which receives the variable current from the dynamic PWM circuit and dynamically adjusts a fixed base frequency of a PWM signal to a dynamic frequency of the PWM signal which corresponds with the load current.

公开(公告)号：US11599133B2

公开(公告)日：2023-03-07

申请号：US17374228

申请日：2021-07-13

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Shatabda Saha

IPC: G05F1/575 ,  G05F1/573

Abstract: Disclosed is a power supply that automatically switches between a voltage regulation mode and an over current protection mode, as needed. The power supply includes a voltage regulator that generates a first control voltage for applying to the control terminal of a pass transistor during a voltage regulation mode to maintain an output voltage at a desired voltage level. The power supply includes a current limiter that generates a second control voltage for applying to the control terminal of the pass transistor during an over current protection mode to prevent an output current from rising above a maximum output current limit. The power supply includes additional circuitry that detects when over current protection is required and automatically switches the control voltage applied to the control terminal from the first control voltage to the second control voltage or vice versa, as necessary. Also disclosed is an associated power supply method.

公开(公告)号：US11874680B2

公开(公告)日：2024-01-16

申请号：US18154060

申请日：2023-01-13

Applicant: GlobalFoundries U.S. Inc.

Inventor： Shatabda Saha

IPC: G05F1/575 ,  G05F1/573

CPC classification number: G05F1/575 ,  G05F1/573

Abstract: Disclosed is a power supply that automatically switches between a voltage regulation mode and an over current protection mode, as needed. The power supply includes a voltage regulator that generates a first control voltage for applying to the control terminal of a pass transistor during a voltage regulation mode to maintain an output voltage at a desired voltage level. The power supply includes a current limiter that generates a second control voltage for applying to the control terminal of the pass transistor during an over current protection mode to prevent an output current from rising above a maximum output current limit. The power supply includes additional circuitry that detects when over current protection is required and automatically switches the control voltage applied to the control terminal from the first control voltage to the second control voltage or vice versa, as necessary. Also disclosed is an associated power supply method.

公开(公告)号：US20230161366A1

公开(公告)日：2023-05-25

申请号：US18154060

申请日：2023-01-13

Applicant: GlobalFoundries U.S. Inc.

Inventor： Shatabda Saha

IPC: G05F1/575 ,  G05F1/573

CPC classification number: G05F1/575 ,  G05F1/573

Abstract: Disclosed is a power supply that automatically switches between a voltage regulation mode and an over current protection mode, as needed. The power supply includes a voltage regulator that generates a first control voltage for applying to the control terminal of a pass transistor during a voltage regulation mode to maintain an output voltage at a desired voltage level. The power supply includes a current limiter that generates a second control voltage for applying to the control terminal of the pass transistor during an over current protection mode to prevent an output current from rising above a maximum output current limit. The power supply includes additional circuitry that detects when over current protection is required and automatically switches the control voltage applied to the control terminal from the first control voltage to the second control voltage or vice versa, as necessary. Also disclosed is an associated power supply method.