This one is intended to provide the ~20 kHz switching signal for our future buck converter.
The AMV (astable multivibrator) gives us the signal, but we’re not quite ready to drive the MOSFET yet. We still need a gate driver between the AMV and the MOSFET to turn the 6 V logic-level signal into a suitable gate-drive signal.
More about the gate driver in a later post.









