Can anyone give me a brief run-down of some methods I could use for this?
I want to drive a MOSFET or BJT with a 12v 555 circuit or oscillator. The MOSFET will drive a high voltage circuit that can have both large positives and large negatives occuring on both sides of the transistor. As a result, a MOSFET will require a floating voltage divider to ensure the gate isn't destroyed. But that won't ensure that my control circuitry is protected.
I'm pretty sure that I really need to completely electrically isolate the control circuitry if possible. Can anyone throw out some common techniques so I have an idea of ways to go about it? I need this to operate between 50kHz and 800kHz.