NOVELTY - The system (80) has power amplifiers for amplifying input radio frequency (RF) signals to generate output RF signals. A first capacitor is electrically connected between an output of a first power amplifier and an output of a second power amplifier. A second capacitor is electrically connected between the output of the second power amplifier and an output of a third power amplifier. The capacitors allow signals generated using the first, second and third power amplifiers to combine constructively to generate the output RF signals.    USE - Power amplifier system for use in an electronic device. Uses include but are not limited to consumer electronic product e.g. mobile phone, telephone, TV, computer monitor, hand-held computer, personal digital assistant (PDA), microwave, refrigerator, automobile, stereo system, cassette recorder or player, DVD player, compact disk player, VCR, radio, camcorder, camera, digital camera, portable memory chip, washer, dryer, washer, copier, facsimile machine, scanner, multi-functional peripheral device, wrist watch and clock, electronic test equipment, memory chip, memory module, optical network circuit, communication network and a disk driver circuit.    ADVANTAGE - The system combine signals generated using output stages such that the signals generated from each output stage are constructively added, thus providing low phase discontinuity between different power modes or levels. The system includes a dampening circuit electrically connected to a collector of a bipolar transistor to improve stability of the first power amplifier by limiting signal swing of the collector of the bipolar transistor. The system varies voltage provided to the power amplifiers, so that power consumed from a battery can be reduced, thus improving battery life of a wireless device. The system utilizes an impedance matching block to increase power transfer and reduce reflections of the RF signals generated using the power amplifiers. The system utilizes a decoupling capacitor to provide a low impedance path to high frequency signals, thus reducing noise of power amplifier supply voltage and improving power amplifier stability and performance of the inductor. The inductor is combined with a parallel resonant circuit to reduce size and a number of circuit components in the system. The dampening circuit dampens oscillations by providing resistance to cancel negative input resistance of the output stages, thus stabilizing the system. The system reduces voltage change at the outputs of the output stages to limit large signal swings of the system. The dampening circuit is connected to the bipolar transistor to reduce thermal runaway associated with heating of the bipolar transistor. The capacitor and an inductor transform impedance at a collector of a bipolar transistor so as to provide termination impedance for the bipolar transistor, thus improving efficiency, linearity and quiescent current of the bipolar transistor.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for amplifying an input RF signal to generate an output RF signal.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a power amplifier system.    Impedance matching block (31)    Parallel LC resonant circuit (61)    Inductors (62, 85)    Power amplifier system (80)    Harmonic termination block (84)