Amplifier power supply with large dynamic headroom

Details Amplifier power supply with large dynamic headroom Amplifier power supply with large dynamic headroom

1984-02-22

1985-06-04

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including temperature compensation means

330297, 330298, H03F 304

Patent

active

045217424

ABSTRACT:
Audio power amplifier and other related amplifiers (e.g., radio frequency control amplifiers) with means responsive to output power stage VI product to continuously adjust power supply voltage level via a negative feedback signal inversely proportional to VI product, with nonlinearity at upper limit approach and stabilize VI product or dissipation, adjust to varying load impedance, and to allow lower rated power supply components for a given amplifier task compared to prior art approaches.

REFERENCES:
patent: 3866136 (1975-02-01), Agustin et al.
patent: 4114108 (1978-09-01), Faulkenberry et al.
patent: 4122400 (1978-10-01), Medendorp et al.
patent: 4158180 (1979-06-01), Challen

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