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A 500 mA Power Op Amp Breakout Board With Precision Current Limiting

A 500 mA Power Op Amp Breakout Board With Precision Current Limiting

Safely drive up to ±500 mA into reactive loads. This compact module employs the LT1970A and offers independent 1% source/sink thresholds and onboard fault diagnostics.


A Dual 38W Power Amplifier: A Compact STA540-Based Stereo Audio Board

A Dual 38W Power Amplifier: A Compact STA540-Based Stereo Audio Board

This project brief describes how to build a compact dual-channel power amplifier module that delivers 38 W per channel into 4-ohm speakers using STMicroelectronics' STA540 audio amplifier IC.


A Precision Multi-Sensor Data Acquisition Module

A Precision Multi-Sensor Data Acquisition Module

Build a low-noise, 32-bit delta-sigma ADC board designed around the ADS1262. This 10-channel design features integrated signal conditioning for RTDs, thermocouples, and strain gauges.


Exclusive—Powering AI Processors Using a 48 V Factorized Power Architecture

Exclusive—Powering AI Processors Using a 48 V Factorized Power Architecture

In this Q&A with Vicor, we explore current multiplication and decoupled conversion stages. Both overcome traditional multiphase limitations and drastically cut I²R thermal losses for high-demand loads.


News Jul 21, 2026 by Dale Wilson
An Ultra-Low-Noise Pre-Amp For Audio Applications

An Ultra-Low-Noise Pre-Amp For Audio Applications

Build an ultra-low-noise preamplifier with a JFE150 JFET and OPA202 op-amp, perfect for high-impedance sensors, hydrophones, guitar pickups, microphones, and turntables.


A Four-Channel RS-422 Differential Line Receiver Module

A Four-Channel RS-422 Differential Line Receiver Module

This project brief describes how to build and use a four-channel differential line receiver module for balanced RS-422 and RS-485 data links.


A Four-Channel RS-422 Differential Line Driver Module

A Four-Channel RS-422 Differential Line Driver Module

This project brief describes how to implement a four-channel differential line driver module for reliable long-distance data transmission over balanced twisted-pair lines.


A 7 to 60 V Input Buck Converter: A Wide-Range DC-DC Step-Down Module

A 7 to 60 V Input Buck Converter: A Wide-Range DC-DC Step-Down Module

This project brief describes how to build a wide-range DC-DC buck converter capable of delivering a regulated 5.0 or 3.3 V output from input voltages ranging from 7 to 60 V.


The Isolated Half-Bridge: An IGBT Gate Driver Module with Current Sense

The Isolated Half-Bridge: An IGBT Gate Driver Module with Current Sense

This project brief describes how to assemble an isolated half-bridge IGBT gate driver module built around the NCD57085DR2G. It features onboard current sensing and overcurrent protection.


How SoC Integration Impacts SMT Assembly Yield

How SoC Integration Impacts SMT Assembly Yield

Learn how SoC integration impacts SMT assembly yield, from fine-pitch BGA challenges and package warpage to reflow profiling and inspection strategies.


Join the All About PCBs Virtual Summit, October 1st

Join the All About PCBs Virtual Summit, October 1st

Welcome to the first All About Circuits Summit Day of 2025! This guide will introduce the features of our first Wednesday schedule and help you plan your month-long participation.


News Sep 30, 2025 by Dale Wilson
Stamp Turns Messy Breadboards Into Swappable PCB Blocks

Stamp Turns Messy Breadboards Into Swappable PCB Blocks

Kickstarter project Stamp aims to eliminate crowded breadboards using universal modular breakout PCBs.


News Sep 15, 2025 by Kristijan Nelkovski
OKI Reaches New Heights With a 124-Layer PCB

OKI Reaches New Heights With a 124-Layer PCB

The 124-layer printed circuit board surpasses the longstanding 108-layer industry ceiling without increasing the standard board thickness of 7.6 mm.


News May 09, 2025 by Luke James
Sustainable PCB Manufacturing: Eco-Friendly Materials and Practices

Sustainable PCB Manufacturing: Eco-Friendly Materials and Practices

Current initiatives for sustainable PCB manufacturing often focus more on regulatory compliance than environmental responsibility. We will examine those initiatives plus newer ideas that could provide a better path forward for the PCB manufacturing industry.


Advanced PCB Manufacturing, Assembly, and More—a PCBWay Company Profile

Advanced PCB Manufacturing, Assembly, and More—a PCBWay Company Profile

In this article, we explore the PCB services, intelligent production process, quality strategies, and more offered by PCBWay.


News Oct 30, 2024 by Jeff Child
Building a Resistor Color Code Calculator and Ohmmeter Using Arduino

Building a Resistor Color Code Calculator and Ohmmeter Using Arduino

For this project, I built a handheld resistor color code calculator and ohmmeter using the ATmega328 microcontroller and a 1.8-inch color LCD display.


The Good and Bad of Grounded Copper Pour: The EMC Perspective

The Good and Bad of Grounded Copper Pour: The EMC Perspective

In PCB design, using grounded copper pour can be a double-edged sword. Learn how to make smart design decisions on balancing copper layers, preventing dead copper issues, and enhancing PCB performance.


New Vitrimer PCBs Can Be Recycled Many Times Over

New Vitrimer PCBs Can Be Recycled Many Times Over

With the goal of reducing e-waste, researchers at the University of Washington have created a working PCB based a on highly recyclable vitrimer base.


News May 06, 2024 by Duane Benson
Performing Design for Manufacturing Checks on Gerber Files

Performing Design for Manufacturing Checks on Gerber Files

Avoid mistakes when exporting PCB files from your EDA tools into the Gerber format by understanding the translation process and using DFM tools.


Understanding Gerber Layers for PCBs and Stencils

Understanding Gerber Layers for PCBs and Stencils

Gerber layers don’t have to be a mystery. Knowing the names and purposes of each Gerber layer used in PCB manufacturing can improve your designs and ease communication with the board house.