circuit

The incredible story behind the Gerber PCB file format

The incredible story behind the Gerber PCB file format

I’ve been in the electronics and computing industries ever since I graduated with my BSc from Sheffield Hallam University in the UK back in 1980. Since that time, I’ve designed all sorts of weird and wonderful things (some of which even worked), including my fair share of printed circuit boards (PCBs). I’ve also been associated

The incredible story behind the Gerber PCB file format Continue Reading

Measuring sound in dB with Microphone and Arduino

Measure Sound/Noise Level in dB with Microphone and Arduino

Noise pollution has really started to gain importance due to high population density. A normal human ear could hear sound levels from 0dB to 140dB in which sound levels from 120dB to 140dB are considered to be noise. Loudness or sound levels are commonly measured in decibel(dB), we have some instruments which could measure the

Measure Sound/Noise Level in dB with Microphone and Arduino Continue Reading

Password Based Circuit Breaker

Password Based Circuit Breaker

Summary Electrical accidents are rapidly increasing especially electric line repairs incident due to the lack of communication and coordination between the maintenance personnel and the electric substation staff. The password based circuit breaker device could just be the solution as only the lineman could reliably control the circuit breaker to avoid miscommunication. The system requires

Password Based Circuit Breaker Continue Reading

Simple circuit lets you characterize JFETs

Simple circuit lets you characterize JFETs

When working with discrete JFETs, designers may need to accommodate a large variation in device parameters for a given transistor type. A square-law equation is usually used as an approximate model for the drain-current characteristic of the JFET: ID=β(VGS−VP)2, where ID is the drain current, VGS is the gate-to-source voltage, β is the transconductance parameter,

Simple circuit lets you characterize JFETs Continue Reading

Scroll to Top