Demodulation apparatus for digital audio amplifier

Details Demodulation apparatus for digital audio amplifier Demodulation apparatus for digital audio amplifier

2005-03-15

2005-03-15

Mottola, Steven J. (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S195000, C330S20700P

Reexamination Certificate

active

06867646

ABSTRACT:
Disclosed is a demodulation apparatus for a digital audio amplifier capable of solving a space, cost and heat generation of the digital audio amplifier. The demodulation apparatus includes a first inductor connected between a positive digital audio signal output terminal and one end of a load, a second inductor connected between a negative digital audio signal output terminal and the other end of the load, and magnetically coupled to the first inductor, a first capacitor connected between the one end of the load and ground and coupled to the first inductor for serving as a low-pass filter, and a second capacitor connected between the other end of the load and ground and connected to the second inductor for serving as a low-pass filter.

REFERENCES:
patent: 6281767 (2001-08-01), Lastrucci

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