US 11,121,713 B1 · Boosted switch drivers for high-speed signal switching

Abstract

An example boosted switch driver circuit includes two branches. The first branch includes a first transistor. The second branch includes a second transistor and a level shifter circuit. One of the transistors is an N-type transistor and the other one is a P-type transistor. The circuit is configured to split an input clock signal between the first branch and the second branch, so that a portion of the input clock signal split to the first branch is provided to the first transistor, and a portion of the input clock signal split to the second branch is level-shifted by the level shifter circuit to generate a level-shifted input clock signal and the level-shifted input clock signal is provided to the second transistor. The circuit is further configured to combine an output of the first transistor and an output of the second transistor to generate an output clock signal.

Claims42

Dependent claims

A switch driver circuit, comprising:

an input, to receive an input clock signal;
an output, to provide an output clock signal;
a first transistor and a second transistor, each including a first terminal and a second terminal;
a third transistor, coupled to the first transistor in a cascode arrangement;
and
a level shifter circuit, to level-shift the input clock signal to generate a level-shifted input clock signal,
wherein:
the first terminal of the first transistor is to receive a signal indicative of the input clock signal,
the first terminal of the second transistor is to receive a signal indicative of the level-shifted input clock signal,
the second terminal of the first transistor is coupled to a third terminal of the third transistor, and a second terminal of the third transistor is coupled to the output, and
the second terminal of the second transistor is coupled to the output.

8 more elements

A switch driver circuit, comprising:

an input, to receive an input clock signal;
an output, to provide an output clock signal;
a first transistor and a second transistor, each including a first terminal and a second terminal;
a first level shifter circuit, to level-shift the input clock signal to generate a level-shifted input clock signal;
and
a second level shifter circuit;
wherein:
the first terminal of the first transistor is to receive a signal indicative of the input clock signal,
the first terminal of the second transistor is to receive a signal indicative of the level-shifted input clock signal,
the second terminal of the second transistor is coupled to the second level shifter circuit,
each of the second terminal of the first transistor and the second terminal of the second transistor is coupled to the output,
the first level shifter circuit is to control a high voltage value of the level-shifted input clock signal, and
the second level shifter circuit is to control a high voltage level of the output clock signal.

10 more elements

A switch driver circuit, comprising:

an input, to receive an input clock signal;
an output, to provide an output clock signal;
a first transistor and a second transistor, each including a first terminal and a second terminal;
a first level shifter circuit, to level-shift the input clock signal to generate a level-shifted input clock signal;
and
a second level shifter circuit;
wherein:
the first terminal of the first transistor is to receive a signal indicative of the input clock signal,
the first terminal of the second transistor is to receive a signal indicative of the level-shifted input clock signal,
the second terminal of the second transistor is coupled to the second level shifter circuit,
each of the second terminal of the first transistor and the second terminal of the second transistor is coupled to the output,
the first level shifter circuit is to control a low voltage value of the level-shifted input clock signal, and
the second level shifter circuit is to control a high voltage level of the output clock signal.

10 more elements

Dependencies are inferred from the claim text.

Boosted switch drivers for high-speed signal switching

Life of this patent

Boosted switch drivers for high-speed signal switching

Life of this patent

Abstract

Claims42