PCB Designs

A collection of PCB projects designed using KiCad 9 by Kavin Barath S.

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Projects

1. Breadboard Power Supply

A multi-rail regulated DC power supply designed for breadboard prototyping.

Features

• 3.3V output — LM317L (SOT-89) adjustable linear regulator
• 5V output — LM7805 (TO-220) fixed linear regulator
• 12V pass-through from DC input
• Barrel jack DC input with EG1218 power switch
• LED power indicators per rail
• Screw terminal and pin header outputs

Schematic & Layout: Bread_Board_Power_Supply/

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2. Tiny Solar Power Supplier

A compact boost-converter PCB for harvesting energy from a small solar panel and stepping it up to a usable output voltage.

Features

• AP3015AKTR-G1 boost converter IC
• ASPI-0630LR-100M-T15 100µH power inductor
• SS14 Schottky diode for rectification
• 2N7002 N-channel MOSFET
• 2-pin connectors for solar input and regulated output
• Optimised layout for minimal switching-loop area and low EMI

Schematic & Layout: tiny_solar_power_supplier/

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Tools Used

• KiCad 9 — Schematic capture, PCB layout, DRC

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Author

Kavin Barath S

• GitHub: github.com/kavinR-11
• LinkedIn: linkedin.com/in/kavin-barath-s-1958b3324
• Email: reach.kavinbarath@gmail.com