Electronics 01
How Does an H-Bridge Work? Decay, Dead Time, Losses
Four switches reverse a motor, but the details decide whether it works: shoot-through and dead time, brake vs coast, why an L298 loses 2.5 V and PWM ripple.
mosfets
Electronics 02
MOSFET Gate Resistor Value: How to Choose It (With Math)
The gate loop is a series RLC circuit. Choose the gate resistor for damping 0.7 to 1, then check switching loss and pin current. Worked IRLZ44N example.