公开(公告)号：US11353904B2

公开(公告)日：2022-06-07

申请号：US16399341

申请日：2019-04-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kuang-Yao Cheng ,  Wenkai Wu ,  Preetam Tadeparthy ,  Shuhua Zhang

IPC: G05F1/575 ,  H02M3/158 ,  H02M1/00

Abstract: A voltage regulator system includes a switch system including a power switch to conduct an output current through an inductor based on an input voltage and a switching signal to generate an output voltage at a load. A feedback system generates a PWM signal based on the output voltage and based on a variable reference voltage. A gate driver system generates the switching signal based on the PWM signal. The gate driver system controls the switch system to increase the output voltage at output voltage slopes in each of startup stages during startup of the voltage regulator system. A sampling system samples the output current and the output voltage during the startup of the voltage regulator system to measure each slope of the output voltage slopes at each of the respective startup stages during the startup of the voltage regulator system.

公开(公告)号：US20210242779A1

公开(公告)日：2021-08-05

申请号：US17238979

申请日：2021-04-23

Applicant: Texas Instruments Incorporated

Inventor： Kuang-Yao Cheng ,  Muthusubramanian Venkateswaran ,  Dattatreya Baragur Suryanarayana ,  Preetam Charan Anand Tadeparthy

IPC: H02M3/158 ,  H02M1/00

Abstract: A system includes a load and a switching converter coupled to the load. The switching converter includes at least one switching module and an output inductor coupled to a switch node of each switching module. The switching converter also includes a controller coupled to each switching module, where the controller is configured to adjust a pulse clock rate and a switch on-time for each switching module. The controller comprises a pulse truncation circuit configured to detect a voltage overshoot condition and to truncate an active switch on-time pulse in response to the detected voltage overshoot condition.

公开(公告)号：US20190131872A1

公开(公告)日：2019-05-02

申请号：US15799327

申请日：2017-10-31

Applicant: Texas Instruments Incorporated

Inventor： Kuang-Yao Cheng ,  Preetam Tadeparthy ,  Muthusubramanian Venkateswaran ,  Vikram Gakhar ,  Dattatreya Baragur Suryanarayana

IPC: H02M3/157 ,  H02M3/158

Abstract: A control circuit for a DC-DC converter and a DC-DC converter are disclosed. The control circuit includes an integrator coupled to receive a first reference voltage and a first voltage that includes an output voltage for the DC-DC converter and to provide an integrated error signal. A first comparator is coupled to receive the first reference voltage and the first voltage and to provide a dynamic-integration signal that adjusts the integration time constant of the integrator.