Method and apparatus for correcting asymmetry of an input signal of an amplifier

摘要

A circuit including an amplifier, a transistor, and first, second and third resistances. The amplifier includes an input and an output. The amplifier receives an input signal. A cycle of the input signal includes first and second pulses. The input signal is asymmetrical such that the first pulse has a different peak magnitude than the second pulse. The transistor is connected to the input and the output. The first, second, and third resistances are each connected to the input of the amplifier. The second resistance receives a first input voltage. The third resistance receives a second input voltage. The input signal is based on the first resistance and the first and second input voltages. The amplifier corrects some asymmetry of the input signal to provide an output signal. An amount of asymmetry of the output signal is based on (i) the input signal, and (ii) a state of the transistor.

主权项

1. A circuit comprising:
an amplifier comprising a first input and a first output, wherein the amplifier is configured to receive a first input signal, wherein a cycle of the first input signal comprises a first pulse and a second pulse, and wherein the first input signal is asymmetrical such that a peak magnitude of the first pulse is different than a peak magnitude of the second pulse; a transistor connected to (i) the first input of the amplifier, and (ii) the first output of the amplifier; a first resistance connected to the first input of the amplifier; a second resistance connected to the first input of the amplifier, wherein the second resistance is configured to receive a first input voltage; and a third resistance connected to the first input of the amplifier, wherein the third resistance is configured to receive a second input voltage, wherein
the first input signal is based on (i) the first resistance, (ii) the first input voltage, and (iii) the second input voltage,the amplifier is configured to correct some asymmetry of the first input signal to provide a first output signal, andan amount of asymmetry of the first output signal is based on (i) the first input signal, and (ii) a state of the transistor.