US 11,831,285 B2 · Load circuit of amplifier and driver circuit for supporting multiple interface standards

Abstract

A driver circuit includes a first output terminal, a first switch, a second switch, a third switch and a power source. The first output terminal is arranged for outputting a data output. The first switch is selectively coupled between the first output terminal and a power supply node according to a data input. The second switch is selectively coupled between the first output terminal and a first reference node according to the data input. The third switch is selectively coupled between the first reference node and a reference voltage. The power source is configured to selectively provide one of a supply voltage signal and a supply current signal to the power supply node. When the power source is configured to provide the supply voltage signal, the third switch is switched on. When the power source is configured to provide the supply current signal, the third switch is switched off.

Claims20

Dependent claims

A driver circuit for receiving a data input to generate a data output, the driver circuit comprising:

a first output terminal, arranged for outputting the data output;
a first switch, selectively coupled between the first output terminal and a power supply node according to the data input;
a second switch, selectively coupled between the first output terminal and a first reference node according to the data input;
a third switch, selectively coupled between the first reference node and a reference voltage;
and
a power source, configured to selectively provide one of a supply voltage signal and a supply current signal to the power supply node, wherein when the power source is configured to provide the supply voltage signal, the third switch is switched on;
when the power source is configured to provide the supply current signal, the third switch is switched off.

4 more elements

A driver circuit for receiving a data input to generate a data output, the driver circuit comprising:

a pair of differential output terminals, arranged for outputting the data output, wherein the pair of differential output terminals has a first output terminal and a second output terminal;
a power source, configured to selectively provide one of a supply voltage signal and a supply current signal to a power supply node according to a power switch signal;
a first switch, selectively coupled between the first output terminal and the power supply node according to the data input;
a second switch, selectively coupled between the first output terminal and a first reference node according to the data input;
a third switch, selectively coupled between the first reference node and a reference voltage according to the power switch signal;
a fourth switch, selectively coupled between the second output terminal and the power supply node according to the data input;
a fifth switch, selectively coupled between the second output terminal and a second reference node according to the data input;
and
a sixth switch, selectively coupled between the second reference node and the reference voltage.

6 more elements

Dependencies are inferred from the claim text.

Load circuit of amplifier and driver circuit for supporting multiple interface standards

Life of this patent

Load circuit of amplifier and driver circuit for supporting multiple interface standards

Life of this patent

Abstract

Claims20