US 2026/0303078 A1 · MULTICHANNEL DRIVERS

Abstract

This application relates to methods and apparatus for a multichannel driver, for driving each of a plurality of channels with a respective differential drive signal. The driver has a primary amplifier, which may preferably be a switching amplifier, for outputting a first output signal based a common drive signal component for each of said plurality of channels. The driver also has a respective secondary amplifier for each channel, which may be a linear amplifier. Each secondary amplifier outputs a respective second output signal based on an individual drive signal component for the respective channel, where a difference between the common drive signal component and the individual drive signal component for the respective channel corresponds to the differential drive signal for that channel.

Claims20

Dependent claims

A multichannel driver for driving a load in each of a plurality of channels with a respective differential drive signal, comprising:

a primary amplifier configured to output a first output signal at a first output node based a common drive signal component for each of said plurality of channels;
a plurality of secondary amplifiers, wherein the plurality of secondary amplifiers comprises a respective secondary amplifier for each channel of the plurality of channels, each secondary amplifier configured to output a respective second output signal at a respective second output node based on an individual drive signal component for the respective channel;
wherein a difference between the common drive signal component and the individual drive signal component for the respective channel corresponds to the differential drive signal for that channel.

Dependencies are inferred from the claim text.

Multichannel drivers

Life of this patent

Multichannel drivers

Life of this patent

Abstract

Claims20