Class D amplifier

Details Class D amplifier Class D amplifier

2006-01-24

2006-01-24

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including class d amplifier

C330S010000, C330S20700P

Reexamination Certificate

active

06989714

ABSTRACT:
A pulse modulated signal (ei) output from a pulse modulator (1) and a feedback signal (ef) containing distortion caused by a power switch (3) are integrated in a first integrator (21) and a second integrator (24), respectively, and are input to input terminals of a comparator (25or29), respectively, so that a correction signal (Vc) is generated.

REFERENCES:
patent: 4015213 (1977-03-01), Hamada
patent: 5959501 (1999-09-01), Chester
patent: 6297692 (2001-10-01), Nielsen
patent: 6794930 (2004-09-01), Nurminen
patent: 11-261347 (1999-09-01), None
patent: 2001-502156 (2001-02-01), None
patent: 2001-292040 (2001-10-01), None
patent: 2001-517393 (2001-10-01), None
patent: WO-98/44626 (1998-10-01), None
patent: WO-99/08378 (1999-02-01), None

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