Amplifiers – Miscellaneous – Amplifier protection means
Reexamination Certificate
2007-03-13
2007-03-13
Nguyen, Patricia (Department: 2817)
Amplifiers
Miscellaneous
Amplifier protection means
C330S251000
Reexamination Certificate
active
10703135
ABSTRACT:
A Class D amplifier receives an input signal and includes a ramp generator that generates a ramp signal and an inverted ramp signal. A signal generator generates a first signal when the ramp signal or the inverted ramp signal transitions from less than the input signal to greater than the input signal. The signal generator generates a second signal when the ramp signal or the inverted ramp signal transitions from greater than the input signal to less than the input signal. An output stage drives current through a load based on the first and second signals.
REFERENCES:
patent: 4404511 (1983-09-01), Nola
patent: 4415862 (1983-11-01), Kunugi
patent: 4584566 (1986-04-01), Arcara
patent: 4791341 (1988-12-01), Brown et al.
patent: 5077539 (1991-12-01), Howatt
patent: 5204809 (1993-04-01), Andresen
patent: 5479337 (1995-12-01), Voigt
patent: 5617058 (1997-04-01), Adrian et al.
patent: 6049473 (2000-04-01), Jang et al.
patent: 6348781 (2002-02-01), Midya et al.
patent: 6362986 (2002-03-01), Schultz et al.
patent: 6430220 (2002-08-01), Determan
patent: 6552607 (2003-04-01), Danielson
patent: 6847257 (2005-01-01), Edwards et al.
patent: 6922101 (2005-07-01), Bayko
patent: 0564490 (2001-10-01), None
patent: WO 92/12572 (1992-07-01), None
patent: WO 97/18626 (1997-05-01), None
patent: WO 02/25817 (2002-03-01), None
patent: WO 03/043184 (2003-05-01), None
Nielsen K., “Parallel Phase Shifted Carrier Pulse Width Modulation (PSCPWM)—A Novel Approach To Switching Power Amplifier Design”. Journal Of The Audio Engineering Society, Audio Engineering Society, Mar. 22, 1997: 1-26.
Official Communication from the European Patent Office dated Dec. 15, 2005 for Application No. 04 011 557.8 - 2215; 4 pages.
Marvell World Trade Ltd.
Nguyen Patricia
LandOfFree
Class D 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 amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Class D amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3741465