公开(公告)号：US20170019023A1

公开(公告)日：2017-01-19

申请号：US14801513

申请日：2015-07-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Reza SHARIFI ,  Kevin SCOONES ,  Orlando LAZARO

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M1/14 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A voltage converter includes a high side transistor, a low side transistor coupled to the high side transistor at a switching node, and an inductor coupled to the switching node and providing an output node. A controller is provided that is coupled to the high side transistor and the low side transistor. The controller is configured to selectively turn on and off the high and low side transistors in a repeat cycle. The controller is configured to control the high and low side transistors to cause a sequence of packets of charge to be delivered to the inductor. Also included is an adaptive timer circuit coupled to the output node and the controller and configured to adaptively adjust the amount of charge in each packet based on the voltage ripple of the output node.

Abstract translation: 电压转换器包括高侧晶体管，耦合到开关节点处的高侧晶体管的低侧晶体管，以及耦合到开关节点并提供输出节点的电感器。 提供了耦合到高侧晶体管和低侧晶体管的控制器。 控制器被配置为在重复循环中选择性地打开和关闭高侧和低侧晶体管。 控制器被配置为控制高侧和低侧晶体管以使电荷分组的序列被传递到电感器。 还包括耦合到输出节点和控制器并且被配置为基于输出节点的电压纹波自适应地调整每个分组中的电荷量的自适应定时器电路。

公开(公告)号：US20230318442A1

公开(公告)日：2023-10-05

申请号：US17708982

申请日：2022-03-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kevin SCOONES ,  Sombuddha CHAKRABORTY ,  Pourya ASSEM ,  Reza SHARIFI

IPC: H02M1/32 ,  H02M1/00 ,  H02M1/084 ,  H02M3/158 ,  H02J7/00

CPC classification number: H02M1/32 ,  H02M1/0025 ,  H02M1/084 ,  H02J2207/20 ,  H02J7/00308 ,  H02J7/00304 ,  H02M3/1582

Abstract: A switching converter controller includes a synchronization circuit having a first synchronization circuit input, a second synchronization circuit input, a first synchronization circuit output, and a second synchronization circuit output. The synchronization circuit is configured to: receive an early warning signal at the first synchronization circuit input; receive a load detection signal at the second synchronization circuit input; provide a first control signal at the first synchronization circuit output responsive to the early warning signal; and provide a second control signal at the second synchronization circuit output responsive to the load detection signal. The switching converter controller also includes a driver circuit configured to adjust an idle switch drive signal at a first driver circuit output and a power switch drive signal at a second driver circuit output responsive to the first control signal and the second control signal.