High-impedance drive for the elimination of crossover distortion

Faran, James J.; Fulks, R.

doi:10.1109/tau.1962.1161645

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) High Parameter Variation Tolerance1

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1971

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“…Faran and Fulks [3] propose the use of a current-source driver circuit that utilizes the more linear current transfer ratio of the output transistors to eliminate crossover dis-t0rtion.l This circuit also has the advantage of providing voltage gain in the output stage as opposed to the more common, emitter-follower output stages. When using the output transistors in the current mode, only the less severe nonlinearity due to the decrease jn beta at very low and high current levels is present.…”

Section: ) High Parameter Variation Tolerancementioning

confidence: 99%

An innovative audio power amplifier

Grimes

Mosher

Brown

1971

IEEE Trans. Audio Electroacoust.

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This paper describas the theory and practical aspects of an audio power amplifier capable of delivering 50-W continuous into a 6-104 load. The design utilizes a monolithic operational amplifier and incorporates a novel output driver circuit. Design objectives include low cost, unconditional thermal stability, and the use of standard-tolerance unmatched components. The output stage efficiency analysis assumes an unregulated power 5upply.

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Section: ) High Parameter Variation Tolerancementioning

confidence: 99%