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US 11,325,153 B2Granted
Control circuit for ultrasonic transducers
AssigneeModuleus
InventorsPascal Chatain, Mathieu Roy, Etienne Flesch, Edgard Jeanne
Life of this patent
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Abstract
A circuit of control of ultrasound transducers, is configurable according to the type of transducers to be controlled, and includes a first terminal intended to be coupled to a first electrode of each of the transducers, and a bias switch configurable to couple the first terminal to one or the other of first and second bias nodes according to the type of transducers to be controlled.
Claims14
A circuit of control of ultrasound transducers, comprising:
- a first terminal intended to be coupled to a first electrode of each of the transducers, and a bias switch configurable to couple the first terminal to one or the other of first and second bias nodes;
- a plurality of second terminals intended to be respectively coupled to second electrodes of the transducers to be controlled;
- and
- a receive circuit comprising an input node, a receive amplifier having its input coupled to the input node, an analog-to-digital converter having its input coupled to the output of the receive amplifier, an output coupled to the output of the analog-to-digital converter, and an impedance matching circuit configurable according to the type of transducers to be controlled.
1 more element
A circuit of control of ultrasound transducers, comprising:
- a first terminal intended to be coupled to a first electrode of each of the transducers, and a bias switch configurable to couple the first terminal to one or the other of first and second bias nodes;
- a plurality of second terminals intended to be respectively coupled to second electrodes of the transducers to be controlled;
- and
- a receive circuit comprising an input node, a receive amplifier having its input coupled to the input node, an analog-to-digital converter having its input coupled to the output of the receive amplifier, an output coupled to the output of the analog-to-digital converter, and between the receive amplifier and the analog-to-digital converter, at least one of:
- an analog gain adjustment circuit;
- and
- an analog anti-aliasing filter.
4 more elements
Dependencies are inferred from the claim text.