Patent ID: 8421531

Claim:
An amplification system, comprising: a first amplifier operable to receive an input source signal; a second amplifier connected downstream from the first amplifier; a first impedance network Z 1 coupling the second amplifier to a load; a second impedance network Z 2 operative to provide a feedback signal indicative of an output of the first amplifier to an input of the first amplifier; a third impedance network Z 3 coupling the output of the first amplifier to the load at a common node with the first impedance network Z 1 ; and a fourth impedance network Z 4 operative to provide a negative feedback signal indicative of an output of the second amplifier to the input of the first amplifier; wherein all of said impedance networks Z 1 , Z 2 , Z 3 and Z 4 include resistors, capacitors, or network combinations thereof; and wherein the third impedance network Z 3 includes at least a first capacitor.