MULTICHANNEL DRIVER CIRCUITRY AND OPERATION
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United States of America
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Issued Date -
Dec 12, 2024
app pub date -
Aug 20, 2024
filing date -
Aug 20, 2024
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Abstract
This application relates to methods and apparatus for multichannel drivers for driving transducers in different channels. A multichannel driver has a plurality of output stages configured such that two output nodes can be modulated between selected switching voltages with a controlled duty cycle to generate a differential output signal across a respective transducer, each output stage being operable with different switching voltages in different modes of operation. A first set of two or more of the output stages are arranged to receive a voltage output by a capacitive voltage generator to use as a switching voltage. A controller is configured to control the mode of operation and duty-cycle of each of the output stages based on a respective input signal and also based on operation of the other output stages of the first set.
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