ULTRASOUND TRANSDUCER HALF-BRIDGE DRIVER CIRCUIT

An ultrasound transducer driver circuit UTDC includes a half-bridge output stage and a level-shifter. The half-bridge output stage includes a high-side transistor MP0, a low-side transistor MN0. The high-side transistor MP0 comprises a p-channel FET and the low-side transistor MN0 comprises an n-cha...

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Bibliographic Details
Main Author BLANKEN, Pieter Gerrit
Format Patent
LanguageEnglish
French
German
Published 14.10.2020
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
FOR PERFORMING MECHANICAL WORK IN GENERAL
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY
PERFORMING OPERATIONS
PULSE TECHNIQUE
TRANSPORTING
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Summary:An ultrasound transducer driver circuit UTDC includes a half-bridge output stage and a level-shifter. The half-bridge output stage includes a high-side transistor MP0, a low-side transistor MN0. The high-side transistor MP0 comprises a p-channel FET and the low-side transistor MN0 comprises an n-channel FET. A pullup component R1 of the level shifter includes a voltage-limiting component or circuit Zl, D1..Dn, Ql, Rla, R1b, MNclamp that conducts a portion of the current provided by a first current source MN1 of the level shifter to limit the gate-source voltage of the p-channel FET MP0 to less than a gate-source breakdown voltage of the p-channel FET MP0.
Bibliography:Application Number: EP20190168644