Power Amplifiers Tutorial

This tachometer lets you measure heartbeats, respiratory rates, and other low-frequency events...

Optically isolated SMPS and dc-to-dc converters face the variance of output voltage owing to the...

I am not an engineer, just an experimenter and hacker and prototyper etc, so, thanks to people...

Temperature-indicator and temperature-based products have generated wide interest. There are...

Here`s a signal injector for those of us like me who don`t have a bench full of nice test...

The module provide a pre wired multiplex of 4-digit common anode LED, that`s great. See the...

Timing capacitor (C1) produces several times constants which is used to allow large voltage...

This egg timer, which is both simple and functional, shows once again that it is not essential to...

This page serves as documentation for the circuits that I have built which make use of the...

IF pre-amplifier circuit shown in distributed-parameter type microstrip circuit. It operates in...

As shown below, it is a circuit diagram of a portable gas detector. The portable gas detector...

As shown for the isolation buffer circuit capacitive load. Usually when an external op amp for...

ETl3X220 is connected to a low-cost single-chip RF-transmitter chip, can provide 10...