In Reply to: Nice circuit! posted by Ralph on October 16, 2024 at 08:38:42:
If I replace the speaker with a 330 Hz-1V voltage generator the current is 350 mA, that is, 2.8 Ohm output impedance.
It is quite an acceptable value for all commercial speakers.
Omnes feriunt, ultima necat.
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Follow Ups
- Output impedance is 2.8 Ohm - cellailuca 09:08:02 10/16/24 (6)
- It's actually lower, it is 1.8 Ohm - cellailuca 09:15:13 10/16/24 (5)
- Current feedback usually raises output impedance FWIW nt - Ralph 09:19:01 10/16/24 (4)
- RE: Current feedback usually raises output impedance FWIW nt - cellailuca 09:03:53 10/17/24 (3)
- In that case I would surmise its actually Voltage feedback nt - Ralph 09:11:59 10/17/24 (2)
- RE: In that case I would surmise its actually Voltage feedback nt - cellailuca 03:12:43 10/18/24 (1)
- +1 good work! - Ralph 11:48:12 10/18/24 (0)