Multichannel driver circuitry and operation
US12101085B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2023 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Mar 22, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/30072
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.