The scenario
A microcontroller must charge a capacitor bank and fire a railgun stage when trigger conditions are met, using a low-side NMOS switch and a voltage divider to monitor the bus.
What is in this drawing
Read the decisions behind it.
01
Use low-side NMOS firing switch with gate resistor
02
Add voltage divider feedback to MCU to prevent overcharge
03
Place capacitor bank across the rail load to deliver high-current pulse
When designing or documenting a microcontroller-controlled capacitive discharge railgun firing circuit.
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