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Transmit/receive circuitry for ultrasound systems

  • US 8,961,421 B2
  • Filed: 04/19/2007
  • Issued: 02/24/2015
  • Est. Priority Date: 04/19/2007
  • Status: Expired due to Fees
First Claim
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1. A transducer array for use in ultrasound imaging, the transducer array comprising:

  • a plurality of transducers;

    a plurality of transceivers, wherein each of the plurality of transducers is coupled to an associated transceiver, each of the plurality of transceivers comprising;

    a high voltage MOS device comprising a source, a gate and a drain, wherein the source of the high voltage MOS device is coupled to a high voltage supply, and wherein the gate of the high voltage MOS device is coupled to a floating low voltage switching network, wherein the floating low voltage switching network is biased relative to the high voltage supply;

    a low voltage MOS device comprising a source, a gate and a drain, wherein the source of the low voltage MOS device is coupled to a low voltage supply, and wherein the gate of the low voltage MOS device is coupled to a low voltage switching network, wherein the low voltage switching network is biased relative to the ground; and

    a resistor coupled between the high voltage MOS device and the low voltage MOS device, wherein the resistor is coupled to the drains of the high and low voltage MOS devices, and wherein the transceiver is configured to operate alternately in a transmit mode and in a receive mode.

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