CMOS Stabilizer (CB8857E)

This circuit was found in a 90s EDN. In it we have the use of LEDs and diodes to stabilize the supply voltage of a CMOS load.

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MOSFETs bias (CB6962E)
In the figure we have a typical polarization circuit for MOSFETs with a high impedance...
Refrigerator Alar (CB1351E )
Placed inside the refrigerator, this circuit triggers an oscillator when the part is opened...
Simple LED Beacon (CB10849E)
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...