Amplifiers – Modulator-demodulator-type amplifier
Patent
1995-01-27
1996-09-24
Mottola, Steven
Amplifiers
Modulator-demodulator-type amplifier
330149, H03F 338, H03F 130
Patent
active
055594670
ABSTRACT:
A digital pulse-width modulated method and apparatus is described which is characterized by noise and ripple shaping for purposes of high-fidelity digital power amplification. A sampled power source amplitude signal is used to shape an interpolated input digital signal in a divider, which is then fed to a noise shaper to produce a lower bit digital signal to represent the original input signal. The output power signal is not affected by the requantization error or the power source ripple. Therefore, DC power regulators normally employed in digital pulse-width modulated audio power amplifiers can be entirely eliminated without sacrificing the signal-to-noise ratio.
REFERENCES:
patent: 5150072 (1992-09-01), Malec
Dawes Daniel L.
Mottola Steven
The Regents of the University of California
LandOfFree
Digital, pulse width modulation audio power amplifier with noise does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital, pulse width modulation audio power amplifier with noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital, pulse width modulation audio power amplifier with noise will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1931551