Amplifiers – Miscellaneous – Amplifier protection means
Reexamination Certificate
2011-06-21
2011-06-21
Nguyen, Patricia (Department: 2817)
Amplifiers
Miscellaneous
Amplifier protection means
C330S251000, C330S010000
Reexamination Certificate
active
07965141
ABSTRACT:
A class D amplifier (1) comprises an input unit (11) for receiving a digital input signal (Vin), a pulse shaping unit (12) for producing pulse shaped signals in dependence of the input signal (Vin), a comparator unit (13) for comparing the pulse shaped signals and producing a comparator signal, a driver unit (14) for producing driver signals in dependence of the comparator signal, a switching output unit (15) for producing a pulse width modulated output signal (Vout) in dependence of the driver signals, and a feedback unit (16) for feeding the output signal (Vout) back to the pulse shaping unit (12). The input unit (11) comprises a clipping control unit (10) for controlling the duty cycle of the pulse width modulated output signal (Vout).
REFERENCES:
patent: 5075634 (1991-12-01), French
patent: 5389829 (1995-02-01), Milazzo
patent: 5506532 (1996-04-01), Milazzo
patent: 5838210 (1998-11-01), Midya et al.
patent: 6016075 (2000-01-01), Hamo
patent: 6229389 (2001-05-01), Pullen et al.
patent: 6320465 (2001-11-01), Masini et al.
patent: 6577186 (2003-06-01), Berkhout
patent: 7088177 (2006-08-01), Lind
patent: 2003/0122605 (2003-07-01), Ulrick et al.
patent: 2005/0083114 (2005-04-01), Risbo
patent: 0184280 (1986-06-01), None
patent: 1049248 (2000-11-01), None
patent: 0022727 (2000-04-01), None
patent: 20041047299 (2004-06-01), None
patent: 2004073161 (2004-08-01), None
Berkhout Marco
Dooper Lutsen
Nguyen Patricia
NXP B.V.
LandOfFree
Class D audio amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Class D audio amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Class D audio amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2717811