公开(公告)号：US09160229B2

公开(公告)日：2015-10-13

申请号：US13829356

申请日：2013-03-14

Applicant: Texas Instruments Incorporated

Inventor： Jiwei Fan ,  Tetsuo Tateishi ,  Siyuan Zhou

IPC: G05F1/00 ,  H02M3/156

CPC classification number: H02M3/156

Abstract: A DC-DC converter, having an output voltage and including at least one electronic switch; first circuitry controlling the output voltage by adjusting a switching frequency of the electronic switch, and second circuitry adjusting the switching frequency toward a target switching frequency when the switching frequency significantly deviates from the target switching frequency.

Abstract translation: 一种具有输出电压并且包括至少一个电子开关的DC-DC转换器; 第一电路通过调节电子开关的开关频率来控制输出电压，以及当开关频率显着偏离目标开关频率时，第二电路将开关频率调整到目标开关频率。

公开(公告)号：US10578654B2

公开(公告)日：2020-03-03

申请号：US15858564

申请日：2017-12-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Siyuan Zhou ,  Michael James Munroe ,  Stephen Isaac Brink

IPC: G01R19/18 ,  G01R19/25 ,  H02M3/158 ,  H02M1/00

Abstract: A device for averaging a sensed current includes a sampling circuit that samples at least two sampling points of each cycle of a front-end alternating current (AC) sensed signal. The two sampling points is substantially symmetrical with respect to a midpoint of each respective cycle of the front-end AC sensed signal. The device also includes a timing circuit that controls a timing of the sampling circuit to sample the front-end AC sensed signal on the at least two sampling points based on a timing signal generated by the timing circuit. The device further includes an averaging circuit that averages the two sampling points for a given cycle of the front-end AC sensed signal to produce an average sensed current.

公开(公告)号：US20190204366A1

公开(公告)日：2019-07-04

申请号：US15858564

申请日：2017-12-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Siyuan Zhou ,  Michael James Munroe ,  Stephen Isaac Brink

IPC: G01R19/25 ,  H02M3/158

CPC classification number: G01R19/2509 ,  G01R19/2513 ,  H02M3/158 ,  H02M2001/0009

Abstract: A device for averaging a sensed current includes a sampling circuit that samples at least two sampling points of each cycle of a front-end alternating current (AC) sensed signal. The two sampling points is substantially symmetrical with respect to a midpoint of each respective cycle of the front-end AC sensed signal. The device also includes a timing circuit that controls a timing of the sampling circuit to sample the front-end AC sensed signal on the at least two sampling points based on a timing signal generated by the timing circuit. The device further includes an averaging circuit that averages the two sampling points for a given cycle of the front-end AC sensed signal to produce an average sensed current.

公开(公告)号：US20140266084A1

公开(公告)日：2014-09-18

申请号：US13829356

申请日：2013-03-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jiwei Fan ,  Tetsuo Tateishi ,  Siyuan Zhou

IPC: H02M3/04

CPC classification number: H02M3/156

Abstract: A DC-DC converter, having an output voltage and including at least one electronic switch: first circuitry controlling the output voltage by adjusting a switching frequency of the electronic switch, and second circuitry adjusting the switching frequency toward a target switching frequency when the switching frequency significantly deviates from the target switching frequency.

Abstract translation: 具有输出电压并且包括至少一个电子开关的DC-DC转换器：通过调节电子开关的开关频率来控制输出电压的第一电路和当开关频率 显着偏离目标开关频率。