25W场效应管音频放大器(25W Mosfet audio

25W场效应管音频放大器(25W Mosfet audio amplifier)

R1,R4 = 47K 1/4W ResistorsR2 = 4K7 1/4W Resistors R12,R13,R16 = 10R 1/4W Resistors Technical data:

Output power: well in excess of 25Watt RMS @ 8 Ohm (1KHz sinewave)

Sensitivity: 200mV input for 25W output

Frequency response: 30Hz to 20KHz -1dB

Total harmonic distortion @ 1KHz: 0.1W 0.014% 1W 0.006% 10W 0.006% 20W 0.007% 25W 0.01%
Total harmonic distortion @10KHz: 0.1W 0.024% 1W 0.016% 10W 0.02% 20W 0.045% 25W 0.07%

Unconditionally stable on capacitive loads