Power Supply and Filter + LED Driver PCBs

This repository contains the schematics and PCB layouts for a power supply and a filter + LED driver circuit. These circuits are designed to provide a stable power supply and process input signals to drive LEDs.

Table of Contents

1. Overview
2. Schematics
3. PCB Layouts
4. Components
5. Usage

Overview

This project consists of two main sections:

1. Power Supply: Converts AC input to regulated +12V and -12V DC outputs.
2. Filter + LED Driver: Filters the input signal and drives LEDs based on the processed signal.

Power Supply

The power supply circuit includes:

• A bridge rectifier to convert AC to DC.
• Capacitors for filtering the DC signal.
• Voltage regulators (LM7812CT and LM7912CT) to provide +12V and -12V outputs.
• Decoupling capacitors to stabilize the output.

Filter + LED Driver

The filter + LED driver circuit includes:

• An RC network for filtering the input signal.
• An operational amplifier (TL072CN) for signal amplification.
• Connections to an LED driver to control LED outputs based on the filtered signal.

Schematics

Power Supply Schematic

Filter + LED Driver Schematic

PCB Layouts

Power Supply PCB

Filter + LED Driver PCB

Components

Power Supply

• Bridge Rectifier: 2W10
• Capacitors: C1, C2 (1000 µF), C3, C4 (100 nF), C5, C6 (10 µF)
• Voltage Regulators: LM7812CT, LM7912CT/NOPB

Filter + LED Driver

• Resistors: R14, R15, R16, R17, R18 (100Ω)
• Capacitors: C3, C4, C5, C6 (471 µF)
• Operational Amplifier: TL072CN
• Connectors: TSW-101-26-L-T, HW-02-08-F-S-330-080, MTSW-101-22-T-S-395

Usage

1. Power Supply:

   • Connect AC inputs to AC1 and AC2 terminals.
   • The circuit will provide regulated +12V and -12V outputs.

2. Filter + LED Driver:

   • Connect the signal input to SigIn terminal.
   • The filtered and amplified signal will drive the LEDs connected to the LED driver outputs.

Example Connections

• Power Supply to Filter:

  • V+ from the power supply to V+ of the filter.
  • V- from the power supply to V- of the filter.
  • Ground connections as needed.

• Filter to LED Driver:

  • OUT_1 and OUT_2 from the filter to the corresponding inputs of the LED driver.

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