发明名称 |
Integrated low-voltage transmit/receive switch for ultrasound imaging system |
摘要 |
A low-voltage transmit/receive switch that acts to protect sensitive low-voltage electronics from high-voltage pulse signals used to drive an ultrasonic transducer. The low-voltage transmit/receive switch comprises a series resistor and a parallel MOSFET pair. The parallel MOSFETs are low-voltage devices. The low-voltage transmit/receive switch is placed between the output of a high-voltage pulser and the input of a receive pre-amplifier. If dual high- and low-voltage pulsers are used, then the low-voltage pulser is connected so that it is also protected from the high-voltage pulse signals by the low-voltage transmit/receive switch. In an alternative embodiment, the low-voltage pulser and the receive pre-amplifier are protected from the high-voltage pulse signals by a high-voltage transmit/receive switch.
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申请公布号 |
US2005154300(A1) |
申请公布日期 |
2005.07.14 |
申请号 |
US20030749977 |
申请日期 |
2003.12.30 |
申请人 |
WODNICKI ROBERT G.;FISHER RAYETTE A. |
发明人 |
WODNICKI ROBERT G.;FISHER RAYETTE A. |
分类号 |
A61B8/00;B06B1/02;G01N29/06;G03B42/06;H04B11/00;(IPC1-7):A61B8/00 |
主分类号 |
A61B8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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