公开(公告)号：US20230170821A1

公开(公告)日：2023-06-01

申请号：US17538544

申请日：2021-11-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Navaneeth Kumar NARAYANASAMY ,  Sanjay DIXIT

IPC: H02M7/217 ,  H02M1/08

CPC classification number: H02M7/217 ,  H02M1/08 ,  H02M3/00

Abstract: In an example, a rectifier circuit includes first and second capacitors, first and second current control devices, and a switch. The first current control device is configured to provide an input current to the first capacitor during a positive cycle of an alternating current (AC) input voltage. The second capacitor is configured to store a charge and the switch is configured to couple the second capacitor to a ground terminal so the second capacitor discharges a capacitor current during the positive cycle of the input voltage responsive to the stored charge in the second capacitor. The second current control device is configured to provide the capacitor current to the first capacitor during the positive cycle of the input voltage. The first capacitor is configured to store a charge responsive to the input current and the capacitor current.

公开(公告)号：US20210329776A1

公开(公告)日：2021-10-21

申请号：US17014143

申请日：2020-09-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shabbir AMJHERA WALA ,  Xiaochen XU ,  Dijeesh K ,  Abhishek VISHWA ,  Shriram DEVI ,  Aatish CHANDAK ,  Sanjay DIXIT ,  Elisa Maddalena GRANATA ,  Jun SHEN ,  Sandeep OSWAL

IPC: H05K1/02 ,  H04B10/40 ,  H04B1/40

Abstract: An apparatus comprises a transceiver (Tx/Rx) printed circuit board (PCB) with a top surface and a bottom surface and a power supply PCB. The Tx/Rx PCB includes two transmitter devices, each comprising a number N of channels. A first transmitter device is arranged on the bottom surface and a second transmitter device is arranged on the top surface over the first transmitter device. One or more pins of the second transmitter device are shorted with one or more pins of the first transmitter device with the same function. An analog front end (AFE) device comprising N input channels is arranged on the top surface of the Tx/Rx PCB, and a digital signal processor is coupled to the AFE device. The power supply PCB comprises a power supply module configured to provide a plurality of supply voltages to the Tx/Rx PCB and the power supply PCB.