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 TA8205.
This circuit allows us to connect a 128x64 display with the PC parallel port.
This circuit is composed of two integrated circuits. A digital analogue converter (CA3162) and a seven segment decoder (CA3161).
2x10W amplifier LA4280.
In-out thermometer with 16F873A microcontroller.
To assemble a computer part by part is actually simpler than it looks like. You only have to follow basic rules.
A very precise digital thermometer with LM35 probe (0,1 degree of freedom).
The circuit is based on a 16F873A microcontroller PIC.
Twilight switch with 12F629 microcontroller .
This circuit is a simple digital volume control. The integrated circuit DS1669 is the one that increases or reduces the volume by means of two push buttons.
This circuit is made up of two integrated circuits: an analogue to digital converter (CA3162), and a decoder of seven segments (CA3161).