Biasing circuit for a microelectromechanical acoustic transducer and related biasing method

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United States of America Patent

PATENT NO 9329610
APP PUB NO 20130279721A1
SERIAL NO

13921033

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Abstract

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A biasing circuit for an acoustic transducer is provided with: a voltage-booster stage, which supplies, on a biasing terminal, a boosted voltage for biasing a first terminal of the acoustic transducer; and filtering elements, set between the biasing terminal and the acoustic transducer, for filtering disturbances on the boosted voltage. The biasing circuit is further provided with switches, which can be actuated so as to connect the first terminal to the biasing terminal of the voltage-booster stage, directly during a start-up step of the biasing circuit, and through the filtering elements at the end of the start-up step.

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Patent Owner(s)

  • STMICROELECTRONICS S.R.L.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
David, Filippo Milan, IT 16 171
Gasparini, Alessandro Cusano Milanino, IT 53 281

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