How to make power supply module PCB With KiCad | PCB Design for very beginners | Electronics project

How to make power supply module PCB With KiCad | PCB Design for very beginners | Electronics project
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1. Input Spike Capacitor and Bleeding Resistor:
Why: Adding an input spike capacitor and a bleeding resistor is essential to protect your circuit from voltage spikes when you first connect it to the power supply.
Example: Suppose you're building a circuit that converts AC voltage to DC voltage using a bridge rectifier. In this case, you should include a capacitor, let's say 1000μF, rated at a higher voltage than your AC supply voltage (e.g., 25V or 50V). This capacitor will help smooth out any voltage spikes. Additionally, a bleeding resistor, say 10kΩ, connected in parallel with the capacitor, will discharge any stored energy when the power is turned off, ensuring safety.
2. Isolation with Ground Planes:
Why: Instead of using regular traces to connect AC components to the LM (voltage regulator), it's safer to use ground planes to isolate the AC and DC parts of your circuit.
Example: Imagine you're designing a PCB for a power supply. You'd create separate ground planes for the AC and DC sides of the circuit. The AC ground plane would be connected to the AC components, while the DC ground plane would connect to the LM and other DC components. This separation reduces the risk of noise, interference, and heating issues between the two sides.
3. Optimize Grounding with Vias:
Why: To ensure even current distribution and minimize interference, you should include numerous small-hole vias on both the top and bottom ground planes of your PCB.
Example: Let's say you're working on a PCB for an amplifier. By adding multiple vias connecting the top and bottom ground planes, you create a low-resistance path for current to flow, reducing the chances of hotspots or voltage drops. This also helps maintain a consistent current density across the entire board, which is critical for stable performance and reducing unwanted electromagnetic interference.
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⚠️ WARNING: This video is for demonstration and educational purpose only. Some ideas And Experiment can be risky & Dangerous Must be fully understood before attempting. every video, even that is completed with compliance with the all-safety measures. And should be performed only by professionals
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[@rajjolal23]

guys a few tips for this type of AC to DC circuits. always add n inpur spike capacitor along with a bleeding resistor to absorb initial spike or your home power supply will short. second whatever you do. DO NOT add regular traces between AC and LM ALWAYS use planes or after a few uses it wwill start heating badly and last an third, ALWAYS ALWAYS ALWAYS add a fuck tonne of small hole vias on top and bottom ground planes to make sure all the current passes through easilt, the totall current density is even across the board and it also reduces stray capacitances and inductances as well.

[@diwakarmr9124]

NICE

[@mirceacluj]

Am descarcat si eu librarii de piese de pe siteul kikcad..dar nu stiu cum sa le iau in program .ADD library ..new libraries si nimic Problema mea este ca nu pot vizualiza componentele in 3d view. Doar footprints merge

[@MassimoG]

You forgot 100nF capacitors IN and OUT.

[@thingsgood9596]

I added the footprints for all the components but components c1, c2, j1, j2, LED did not accept the footprints and is displaying error on the pcb layout. How do I correct this?

[@eleobo]

I found the all footprint from snapeda

[@thingsgood9596]

@@eleobo okay. how do you autoroute in kicad