Yet another Hi-Fi Class A Amplifier

I'd like to note that a Hi-Fi amplifiee would include protection circuitry but i don't have enough space plus the amp is already veery hard to adjust without the constant cant find solution error. Anyway this is the preliminary version. In reality I'd smoothen the voltage for the left section of the amplifier and I'd add a few protection circuitry. The output capacitor is not really needed, especially when thw amp is calibrated finely but EC gives me no solution without it. Anyway this is a multiclass amp meaning it could be set in any mode (A,B,AB) employing a thermal compensation voltage feedback. Usually I'd add a few extra thermal compensation feedbacks but yet again the space and EC itself limit me :/ if someone wants the full schematic i managed to whip up just leave a comment. Any specs given below are for class A. - Input sensitivity - 1.2V (will require preamp) - Output power - 67W - Power Consumption - 135W - Efficiency - 50% - Frequency Response - 10Hz - 50Kh - THD+N - a modest 0.02% provided certain needs. In reality due to hum noise and imperfections of transistors it would be closer to 0.1% which is still inaudible by the human ear.

published 10 years ago