Asynchronous BTL design for a Class-D audio amplifier

Details Asynchronous BTL design for a Class-D audio amplifier Asynchronous BTL design for a Class-D audio amplifier

2007-04-24

2007-04-24

Pascal, Robert (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

Reexamination Certificate

active

11041237

ABSTRACT:
The present invention provides an asynchronous BTL (Bridge Tied Load) design for a Class-D audio amplifier. The Class-D audio amplifier comprises two independent signal routes, each of the two independent signal routes includes a PWM (Pulse Width Modulator), a predriver and a power MOS circuit; each of the two independent signal routes receives an input signal via the PWM thereof, and outputs signal through the power MOS circuit thereof, and then cooperatively drive a loudspeaker; no synchronous signal is inputted to each of the two PWMs, and the two power MOS circuits feed back independent signals respectively to the two PWMs. The present invention omits the synchronous design of the prior art, and let the two push-pull signals required by the BTL design being processed independently, while cooperatively drive the loudspeaker.

REFERENCES:
patent: 6104248 (2000-08-01), Carver
patent: 6674325 (2004-01-01), Chen et al.

Affiliated with

Also associated with

Rating

Asynchronous BTL design for a 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 Asynchronous BTL design for a Class-D audio amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asynchronous BTL design for a Class-D audio amplifier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3773198