Try the worlds most trusted PCB design software, Altium Designer. In addition, in electronic products with both analog and digital circuits, the printed boards often separate their ground lines to form an independent grounding grid, which can also be used as a basis for identification and judgment. Check out our 360 virtual display homes tours today Select Homes is a company you. then youll be safe to use the full area of your board when placing parts. When the factory is wiring the printed circuit board, in order to prevent self-excitation and anti-interference, the ground copper foil is generally set to the widest ( high-frequency circuits often have large-area grounded copper foil), the power supply copper foil is second, and the signal copper is used. But then you get to the artistic side of PCB design with component placement. The power and ground lines can also be found from the three-terminal regulator pins. Taking the power supply circuit as an example, the negative terminal of the rectifier connected to the secondary of the power transformer is the positive pole of the power supply, and a large-capacity filter capacitor is generally connected between the ground and the ground, and the capacitor casing has a polarity mark. Correctly distinguish the ground, power and signal lines of the printed board.
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