US 2013/0154743 A1 · CLASS AB AMPLIFIERS

Abstract

An amplifier includes a first switch and a second switch each having a first terminal and a second terminal. The first terminals of the first and second switches respectively communicate with a first tank circuit and a second tank circuit. The second terminal of the second switch communicates with the second terminal of the first switch. A first capacitance having a first terminal connected directly to (i) the second terminal of the first switch and (ii) the second terminal of the second switch. A second terminal of the first capacitance is connected directly to a first input voltage of the amplifier. A first load is connected across (i) the first terminal of the first switch and (ii) the first terminal of the second switch. The amplifier generates a first output across the first load.

Claims20

Dependent claims

An amplifier comprising:

a first switch having a first terminal and a second terminal, wherein the first terminal communicates with a first tank circuit;
a second switch having a first terminal and a second terminal, wherein the first terminal of the second switch communicates with a second tank circuit, and wherein the second terminal of the second switch communicates with the second terminal of the first switch;
a first capacitance having a first terminal and a second terminal, wherein the first terminal of the first capacitance is connected directly to (i) the second terminal of the first switch and (ii) the second terminal of the second switch, and wherein the second terminal of the first capacitance is connected directly to a first input voltage of the amplifier;
and
a first load connected across (i) the first terminal of the first switch and (ii) the first terminal of the second switch,
wherein the amplifier generates a first output across the first load.

3 more elements

An amplifier comprising:

a first switch having a first terminal and a second terminal, wherein the first terminal communicates with a first tank circuit;
a second switch having a first terminal and a second terminal, wherein the first terminal of the second switch communicates with a second tank circuit, and wherein the second terminal of the second switch communicates with the second terminal of the first switch;
a first capacitance having a first terminal and a second terminal, wherein the first terminal of the first capacitance is connected directly to (i) the second terminal of the first switch and (ii) the second terminal of the second switch, and wherein the second terminal of the first capacitance is connected directly to a first input voltage of the amplifier;
and
a first capacitance connected across (i) the first terminal of the first switch and (ii) the first terminal of the second switch.

2 more elements

Dependencies are inferred from the claim text.

Class ab amplifiers

Life of this patent

Class ab amplifiers

Life of this patent

Abstract

Claims20