| Electronics > Beginners |
| why is class A audio amp saturating? |
| << < (7/7) |
| Zero999:
--- Quote from: magic on August 18, 2019, 09:11:21 pm ---CCS is significantly more efficient. Do the math: how much current it takes to drive 8Ω load within 1V of supply rail, what resistance is needed for that, how much current will it waste when idle. --- End quote --- Yes, a constant current sink is much more efficient. To swing within a half a volt of the negative rail with a resistor, would require such a low value, the quiescent power draw would be enormous. I alluded to this in a previous post. https://www.eevblog.com/forum/beginners/why-is-class-a-audio-amp-is-saturating/msg2618517/#msg2618517 |
| fourfathom:
OK, I agree. I said "only somewhat", but you're right, the CC source is "much more" efficient. |
| Navigation |
| Message Index |
| Previous page |