Distributing DC power from multiple sources across multiple voltage rails at significant current levels — that goes well beyond simple routing.
Multi-source management requires OR-ing logic to prevent backfeeding and ensure clean continuity during source transitions. The PIC16F1946 supervises it all: source monitoring, fault handling, output sequencing, and status signaling.
On the PCB side, current levels pushed the design toward a reinforced stack-up with 140 µm copper. At that point, the board becomes part of the electrical design itself: track width, copper balancing, via stitching, return paths — everything matters. Power distribution stops being a background concern and becomes one of the central engineering challenges of the product.
