Back in 2012, I wrote about signal conditioning for MEMS and sensors. Amplifiers and architectures have not changed very much since, but there are a few newer devices and design architectural ...
Here is a gas leak detector circuit that detects the leakage of LPG gas and alerts the user through audio-visual indications. The circuit operates off a 9V PP3 battery. Zener diode ZD1 is used to ...
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