Amplifier containing programmable impedance for harmonic...

Details Amplifier containing programmable impedance for harmonic... Amplifier containing programmable impedance for harmonic...

2006-09-29

2008-12-30

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including balanced to unbalanced circuits and vice versa

C330S276000

Reexamination Certificate

active

07471156

ABSTRACT:
An apparatus and method for eliminating unwanted signal power dissipation in balanced amplifier circuits and for prohibiting unwanted signal power from appearing at the balanced amplifier load is presented. Load impedances to the amplifier power output transistors are maintained very low at unwanted frequencies, and are at an operational impedance level at the fundamental frequency. An impedance network control concept is presented, which may be either manually or automatically implemented.

REFERENCES:
patent: 7170353 (2007-01-01), Amano
patent: 7251292 (2007-07-01), Kandiar
patent: 7355479 (2008-04-01), Van Der Heijden

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