Ultrasound apparatus and method for amplifying transmit signals

Details Ultrasound apparatus and method for amplifying transmit signals Ultrasound apparatus and method for amplifying transmit signals

1998-02-10

2000-02-22

Pascal, Robert

Amplifiers

With semiconductor amplifying device

Including plural amplifier channels

330 55, 330254, H03F 368, H03F 304, H03F 345

Patent

active

060284846

ABSTRACT:
A method and system for amplifying an ultrasonic transmit signal is provided. A first amplifier stage has a first supply voltage input and receives transmit signals. A second amplifier stage has a second supply voltage input and receives transmit signals in parallel with the first amplifier stage. Amplified transmit signals are output from one of the first and second amplifier stages. The supply voltage inputs are supplied with fixed voltages. The first amplifier stage is associated with PW operation and a higher supply voltage than the second amplifier stage. The second amplifier stage is associated with CW operation.

REFERENCES:
patent: 4593251 (1986-06-01), Smith
patent: 5438684 (1995-08-01), Schwent et al.
patent: 5548246 (1996-08-01), Yamamoto et al.
patent: 5675554 (1997-10-01), Cole et al.
patent: 5694937 (1997-12-01), Kamiyama

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