I designed my amplifier such that it can handle full-power square waves without slew-rate limiting. It's of no practical use at all, but it assures you that whatever may happen, your amplifier won't go into slew rate limiting.
If I should ever design an amplifier for driving electrostatic headphones, I would design the output current limiting for a power bandwidth in the 3 kHz to 8 kHz range. High enough for almost all music, and the lower the current limit, the smaller the shock you would get if the insulation should fail. (European FM power bandwidth: 3183 Hz, that 8 kHz comes from a very old article of Otala's research group.)
If I should ever design an amplifier for driving electrostatic headphones, I would design the output current limiting for a power bandwidth in the 3 kHz to 8 kHz range. High enough for almost all music, and the lower the current limit, the smaller the shock you would get if the insulation should fail. (European FM power bandwidth: 3183 Hz, that 8 kHz comes from a very old article of Otala's research group.)
Last edited:
I think that an amplifier ideally should have as much margin on its slew rate as the amplifier has loop gain. For example, an amplifier with a loop gain of 10 should have a slew rate 10x higher than 2*pi*f*v. Nearly all amplifiers have much more loop gain than slew rate.
Ed
Ed