marți, 15 noiembrie 2016
How to layout a PCB for an instrumentation amplifier
INAs are used in applications that require the amplification of a differential voltage, such as when measuring the voltage across a...
luni, 7 noiembrie 2016
Which Domain Extension Should I Use? .Com .Net .Org .Info or .Us
So…which domain name extension should you use? .COM, .NET, .ORG, .INFO or .US? The answer depends on your business model. If...
marți, 25 octombrie 2016
Light-sensitive fire alarm
Circuit diagram of the light-sensitive fire alarm is shown in Fig. 1. It is built around L14F1 photo transistor (T1), BC547...
Build your own programmable power supply with TL431
TL431 and LM431 are relatively low-noise, stable and low-cost shunt regulators. These can be used to build all sorts of power...
Dimming LCD Backlight
Presented here is an LCD power-saving backlight-control circuit. An LCD is used in many projects for indication or information display since...
marți, 4 noiembrie 2014
Curious C-Beeper
Curious C-Beeper is a fun to build little probe that can be used to quickly detect the capacity of capacitors in...
LM386 Utility Amplifier
It's always handy to have a little amp kicking around to trace audio signals, test mics, CD tape and TV audio...
