Categories
Speaker protection circuit
This circuit is made to protect the speakers from the "pump" inconvenience, that is produced in some amplifiers while they are on.
2x10W amplifier
2x10W amplifier LA4280.
Contdown 7 segment displays
Based on the Countdown with LCD 2x16, we have made this variant of the countdown. The countdown circuit, or the backwards counting we shall describe, shows the visualisation of the backwards counting on four 7 segment displays.
On-off push button
On-off push button with a 12F675 microcontroller.
How to make a voltage divider
A resistive divider is an electric circuit to which we join a voltage and so obtain its reduction.
How to build a computer Part 1
To assemble a computer part by part is actually simpler than it looks like. You only have to follow basic rules.
Full wave precision rectifier
This precise full-wave-rectifier is a circuit made to rectify those values that a normal bridge rectifier cannot rectify.The diminution of the diode bridge rectifier’s typical power is (obviously, it depends on the type of the diodes) of the 0,7 volts-an approximate value.
2x18W amplifier
2x18W amplifier TA8205.
"Eagle" software ground plane tutorial
When we have an audio circuit, it is necessary, for the better shielding, and to avoid unnecessary noise, to create a ground plane.
Countdown with lcd 2x16
The circuit is based on a 16F873A microcontroller PIC.
Voltmeter ammeter and wattmeter with pic
The project that we present here is a meter of volts, amps and watts, to which we have also incorporated a temperature sensor to activate a fan, or other mechanism that we want, through a relay.
Digital voltmeter with LCD
With a simple circuit and a microcontroller pic, 16F873A model, we designed this digital voltmeter in addition to any power source.
Circuits
Circuits made with a professional design program
Tested
All circuits described have been tested
Tutorials
We extended the tutorials section periodically
Scalextric
Circuits of two and four cars made with design program
Photos
Scalextric photos