Simple, high accuracy/precision/resolution frequency counter

In my previous design idea, a design for a simple GPS disciplined oscillator (GPSDO) 10 MHz reference was presented. A note at the end of that article describes the realization that a frequency counter could be derived by simple changes to the circuit. This article follows up by presenting a simple circuit for a frequency … Read more

Precision synchronous detection amplifier facilitates low voltage measurements

This design idea presents a practical circuit that implements synchronous detection to amplify small DC voltages with high linearity and excellent noise immunity. Such circuits are required in measurements involving current shunts, load cells, thermocouples, etc. Synchronous detection is explained in many books, papers and instrument manuals. If you are not familiar with the topic, … Read more

Universal development board eases prototyping

Mikroe’s 8th-generation universal development board, the UNI-DS v8, now packs a programmer/debugger that works over Wi-Fi. Other features that simplify and speed prototyping include extensive MCU support, additional standard interfaces, and and a connector for adding a TFT display. The board’s integrated Codegrip programmer/debugger supports more than 3300 microcontrollers from different vendors. Along with its … Read more

DIY cold plates permit custom fit

Advanced Thermal Solutions’ DIY aluminum cold plates allow engineers to safely drill holes in a mounting pattern that matches the target hot device. Once the right placement and design are determined, ATS can manufacture the custom cold plate for prototypes or production. Cold plates in the DIY lineup offer the same thermal performance as the … Read more

EMC Testing Radiated Emissions – Part 1

This is the first in a series of seven bi-monthly articles on ‘do-it-yourself’ electromagnetic compatibility (EMC) testing techniques. This series will cover the whole range of test methods – from simple tests for development and fault-finding purposes, through lowest-cost EMC checks; ‘pre-compliance’ testing with various degrees of accuracy, on-site testing for large systems and installations; … Read more

Intel Galileo vs. Raspberry Pi

The Intel Galileo and the Raspberry Pi (RPi) are both open source, do-it-yourself (DIY) electronics hardware development boards featuring embedded processors. Galileo has a new, memory-rich and powerful processor (Quark) and is compatible with existing development accessories from the Arduino suite of open source hardware (OSHW) boards. OSHW has become better known, more widely dispersed, … Read more