The amplifier is driven by voltages of+18V and-18V, while MOSFFET is driven by voltages of 10V and-10V. Is there a difference between this 18V and 10V, or is it a unified standard?
Amplifiers and MOSFFET are divided into various models, single power supply and dual power supply, all of which have power supply range. For example, the power supply range of operational amplifier LM324 is 3.5-20V. As long as its power supply voltage is within this range, it can work normally, but it has an optimal power supply voltage, and its performance is the best at this voltage.