Class-E amplifier and lighting ballast using the amplifier

Amplifiers – With semiconductor amplifying device – Including particular biasing arrangement

Reexamination Certificate

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Details

C330S297000, C330S286000, C330S277000, C330S252000, C327S530000, C327S545000, C327S563000, C327S524000

Reexamination Certificate

active

08054135

ABSTRACT:
An amplifier comprises a power source, a load network comprising a load and a resonance circuit, an input branch having a first end electrically coupled to the power source and a second end electrically coupled to the load network, and an active switch having one terminal electrically coupled to the second end of the input branch. The input branch including at least one parallel-LC-circuit configured to provide an infinitely large impedance at harmonics of a determined order.

REFERENCES:
patent: 5592122 (1997-01-01), Masahiro et al.
patent: 6784732 (2004-08-01), Hajimiri et al.
patent: 7397676 (2008-07-01), Lincoln et al.
patent: 2003/0139159 (2003-07-01), Young
patent: 2010/0283544 (2010-11-01), Ishikawa et al.
Woo et al., “Voltage-Clamped Class-E Inverter With Harmonic Tuning Network for Magnetron Drive”, Member, IEEEIEEE Transactions on Circuits and Systems—II: Express Briefs, vol. 53, No. 12, Dec. 2006.
Imury et al, “Inverse Class-E Amplifier With Transmission-Line Harmonic Suppression”, Fellow, IEEE Transactions on Circuits and Systems—I: Regular Papers, vol. 54, No. 7, Jul. 2007.

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