Driver circuitry

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United States of America Patent

PATENT NO 11381239
SERIAL NO

17381546

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The present disclosure relates to switching drivers for driving a transducer. A switching driver (202) has supply nodes for receiving supply voltages (VSH, VSL) defining at least one input voltage and an output node (104). A controller (205) controls operation of the first switching driver to generate a drive signal for the transducer at the output node (104), based on an input signal (Sin). A first capacitor (201a) is connected between first and second capacitor nodes (104, 204a) and a second capacitor (201b) is connected between the second capacitor node (204a) and a third capacitor node (204b). A network of switches (203) selectively connects any of the driver output node, the second capacitor node and the third capacitor node to either of a respective pair of said supply nodes, with the first capacitor node connected to the first driver output node.

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Patent Owner(s)

Patent OwnerAddress
CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD7B NIGHTINGALE WAY QUARTERMILE EDINBURGH EH3 9EG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lesso, John P Edinburgh, GB 118 752
Melanson, John L Austin, US 484 10497

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