Zero Crossing Detector LM393 (CB4483E)

The circuit presented is from the 1993 Motorola Linear Interface ICs. Other operational may be used and the source is not symmetrical.

7812 High Current Regulator (CB4840E)
In the figure we have a way of obtaining a 13,2 V with current up to 5 A using an integrated 7812...
Touch Switch (CB6028E)
This switch is triggered by the touch of the sensors, which can be two metal plates. These plates...
Voltage Doubler using the 555 - II (CB1234E)
This traditional doubler configuration with the 555 IC can be found in other articles on the...