公开(公告)号：US20170201399A1

公开(公告)日：2017-07-13

申请号：US15354149

申请日：2016-11-17

Applicant: Texas Instruments Incorporated

Inventor： Sudhir Komarla Adinarayana ,  Sreenivasa S. Mallia ,  Sreeram Subramanyam Nasum

IPC: H04L27/04 ,  H04B1/69 ,  H04B1/04 ,  H04B1/40

Abstract: An isolator chip includes a transmitter circuit coupled to provide differential output signals to respective first terminals of a first and a second capacitor and a receiver circuit coupled to receive the differential output signals from respective second terminals of the first and second capacitors. The transmitter circuit includes a voltage-clamping circuit coupled to receive an input signal and to provide a clamped signal, an oscillator coupled to receive the clamped signal and to provide the differential output signals, and a common mode transient immunity (CMTI) circuit that couples respective first terminals of the first and second capacitors to a lower rail responsive to the clamped signal being low.

公开(公告)号：US11677315B2

公开(公告)日：2023-06-13

申请号：US17103176

申请日：2020-11-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivasa Rao Madala ,  Suvadip Banerjee ,  Sudhir Komarla Adinarayana ,  Tarunvir Singh

IPC: H02M3/24 ,  H02M1/44 ,  H02M3/335

CPC classification number: H02M1/44 ,  H02M3/24 ,  H02M3/33515

Abstract: A system includes a switching converter, an input voltage source coupled to an input of the switching converter, and a load coupled to an output of the switching converter. The system also includes a load sense circuit coupled to the load and configured to provide a load sense signal. The system also includes an oscillator coupled to the switching converter and configured to provide a spread spectrum modulated (SSM) clock signal to the switching converter, wherein a frequency of the SSM clock signal varies as a function of the load sense signal.

公开(公告)号：US10819543B2

公开(公告)日：2020-10-27

申请号：US15354149

申请日：2016-11-17

Applicant: Texas Instruments Incorporated

Inventor： Sudhir Komarla Adinarayana ,  Sreenivasa S Mallia ,  Sreeram Subramanyam Nasum

IPC: H02H1/00 ,  H02H1/04 ,  H02H3/22 ,  H02H9/06 ,  H01C7/12 ,  H04L27/04 ,  H04B3/30 ,  H04B1/04 ,  H04B1/40 ,  H04B1/69

Abstract: An isolator chip includes a transmitter circuit coupled to provide differential output signals to respective first terminals of a first and a second capacitor and a receiver circuit coupled to receive the differential output signals from respective second terminals of the first and second capacitors. The transmitter circuit includes a voltage-clamping circuit coupled to receive an input signal and to provide a clamped signal, an oscillator coupled to receive the clamped signal and to provide the differential output signals, and a common mode transient immunity (CMTI) circuit that couples respective first terminals of the first and second capacitors to a lower rail responsive to the clamped signal being low.