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    Make LM1875 DC negative feedback BTL power amplifier circuit ----- lm1875 btl power amplifier

     

    Making LM1875 DC negative feedback BTL power amplifier circuit, LM1875 BTL Power Amplifier Keywords: Making LM1875 DC negative feedback BTL power amplifier circuit, LM1875, amplifier, power amplifier, HIFI The LM1875 power amplifier circuit is simple, beautiful, with ambiguous tone. With its power amplifier, the output power is up to 25W at the positive and negative 25V voltage. In order to output a larger power, it can be connected to a BTL circuit. The following circuit output power exceeds 60W (8 Euro speakers), is a designed current negative feedback circuit, which is more beautiful. In addition, the master is recommended to put C11 in the figure. C21 cancels, and the capacitor is added in the input terminal (C11 is changed here). Change the circuit to DC amplifier, the effect will be better After carefully making this powerful fan on the speaker basically can't hear noise, this active plate is smaller than a business card, 1875 takes a horizontal installation, all connecting from the aluminum plate, this is conducive to improving the signal to noise ratio, sound Very soft, interested friends may wish to try

     

     

     

     

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