Power amplifier capable of regulating noise
A technology of power amplifiers and operational amplifiers, applied in power amplifiers, DC-coupled DC amplifiers, differential amplifiers, etc., can solve problems such as unsatisfactory results
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[0040] In the following, a class-D audio power amplifier will be used as an example of implementation of the present invention. However, the present invention is not limited thereto, and those skilled in the art can apply the spirit of the present invention to various power amplifiers, such as class A, class B, and class AB power amplifiers.
[0041] figure 2 A circuit block diagram of a power amplifier capable of noise trimming is shown according to an embodiment of the present invention. Please refer to figure 2 , the power amplifier includes a differential mode integrator 210 , an integrating and regulating unit 220 and a switching unit 230 . The differential mode integrator 210 integrates the received audio signal (here, the differential mode input signal pair VIN and VIP) and the differential mode output signal pair VON and VOP to generate the differential mode first signal pair VIN 'with VIP'. The integrating and regulating unit 220 receives the first signal pair V...
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