Phoenix

[phoenix8312]

1. Given that the voltage stays the same, and the current increases when the cells get hotter. What circuit component must be changing due to the heat (not the current). The internal resistance of the battery must be decreasing, causing the current to increase and the cell to get even hotter.
2. Why do I need to use {KIPRJMOD}? We need to use {KIPRJMOD} so that the project still works even if the library location changes for different users.
3. Why don’t I just download the UTSVT-KiCAD Libraries as a zip and then copy and paste it into the repo? By cloning, if there are any updates to the repository, it is easier to pull these updates.
4. Look up the equation for current through a capacitor, given that equation why does switching the mosfet on and off induce high instantaneous current (assume capacitance is staying constant). The equation for current through a capacitor is dependent on the derivative of voltage with respect to time. When the MOSFET turns on in off, the voltage rapidly changes across the capacitor, leading to high instantaneous current.
5. You only need a pullup or a pulldown, why did you choose one? I chose a pull down resistor, because when the gate of the NMOS is low, it is off. I want the NMOS to be off and not allow current unless there is an active signal to the gate.
6. Diodes are directional, what direction should you place the diode in and what would happen if the diode were placed in the wrong orientation? The flyback diode should be placed opposite to the direction of current flow. If it is placed in the wrong orientation it will not prevent the large current spike.