公开(公告)号：US20190201933A1

公开(公告)日：2019-07-04

申请号：US16327538

申请日：2017-08-03

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jianlin Li ,  Jing Li ,  Weihua Shang ,  Baoming Huang ,  Heng Wu

IPC: B06B1/02 ,  G01S7/52 ,  G01S7/524 ,  G01S7/526

CPC classification number: B06B1/0215 ,  G01S7/52017 ,  G01S7/5202 ,  G01S7/52025 ,  G01S7/523 ,  G01S7/524 ,  G01S7/526

Abstract: The present invention discloses a transmitting and receiving device for an ultrasonic system, which comprises a transmitter, a receiver and at least two switch circuits connected in series. The transmitter is coupled to an ultrasonic transducer and generates high voltage signals to the ultrasonic transducer during a transmitting mode. The receiver is coupled to the ultrasonic transducer via the at least two switch circuits and receives low voltage signals from the ultrasonic transducer during a receiving mode. The at least two switch circuits are configured to share voltage drop of the high voltage signals to isolate the high voltage signals during the transmitting mode and allow the low voltage signals to pass through during the receiving mode. It also discloses an ultrasonic system having the transmitting and receiving device.