公开(公告)号：US20210050784A1

公开(公告)日：2021-02-18

申请号：US17072217

申请日：2020-10-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata VEERAMREDDI

IPC: H02M3/158

Abstract: Disclosed embodiments of a power converter include a power output stage for generating a first voltage output and an auxiliary power output stage for generating a second voltage output. The power converter further includes a pulse frequency modulation (PFM) controller for controlling the power output stage in response to the first voltage output generated by the power output stage during a first period of time in which the power output stage operates in a PFM mode, and a pulse width modulation (PWM) controller for controlling the auxiliary power output stage in response to the second voltage output generated by the auxiliary power output stage during a second period of time. At least a portion of the first period of time is concurrent with the second period of time.

公开(公告)号：US20200083796A1

公开(公告)日：2020-03-12

申请号：US16122953

申请日：2018-09-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata VEERAMREDDI ,  Subhash SAHNI

IPC: H02M1/08 ,  H02M3/158

Abstract: A switch-mode power supply and a zero current detector for use therein. A zero current detector includes an input stage and an output stage. The output stage is coupled to the input stage. The output stage includes a detector output terminal, a first transistor, and a second transistor. The first transistor includes an input terminal and a control terminal. The input terminal is coupled to the detector output terminal. The control terminal is coupled to the input stage. The second transistor includes an input terminal, a control terminal, and an output terminal. The input terminal is coupled to the control terminal of the first transistor. The control terminal is coupled to the input terminal of the second transistor. The output terminal is coupled to ground.

公开(公告)号：US20190089247A1

公开(公告)日：2019-03-21

申请号：US16118759

申请日：2018-08-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata VEERAMREDDI

IPC: H02M3/158

Abstract: Disclosed embodiments of a power converter include a power output stage for generating a first voltage output and an auxiliary power output stage for generating a second voltage output. The power converter further includes a pulse frequency modulation (PFM) controller for controlling the power output stage in response to the first voltage output generated by the power output stage during a first period of time in which the power output stage operates in a PFM mode, and a pulse width modulation (PWM) controller for controlling the auxiliary power output stage in response to the second voltage output generated by the auxiliary power output stage during a second period of time. At least a portion of the first period of time is concurrent with the second period of time.

公开(公告)号：US20170250608A1

公开(公告)日：2017-08-31

申请号：US15597400

申请日：2017-05-17

Applicant: Texas Instruments Incorporated

Inventor： Srinivas Venkata VEERAMREDDI

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M2001/0032 ,  H02M2001/008 ,  Y02B70/16

Abstract: Disclosed embodiments of a power converter include a power output stage for generating a first voltage output and an auxiliary power output stage for generating a second voltage output. The power converter further includes a pulse frequency modulation (PFM) controller for controlling the power output stage in response to the first voltage output generated by the power output stage during a first period of time in which the power output stage operates in a PFM mode, and a pulse width modulation (PWM) controller for controlling the auxiliary power output stage in response to the second voltage output generated by the auxiliary power output stage during a second period of time. At least a portion of the first period of time is concurrent with the second period of time.