Schematic The Smps

Switched Mode Power Supplies (SMPS) are categorized as DC to DC converters and DC to AC converters. Switched Mode Power Supplies (SMPS) are essential components in modern electronic devices, providing efficient power conversion from one form to another. The primary...

The purpose of this circuit is to power a lamp or other appliance for a specified duration (30 minutes in this case) and then automatically turn it off. This feature is particularly useful for reading in bed at night,...

The digital lock shown below uses 4 common logic ICs to allow controlling a relay by entering a 4 digit number on a keypad. The first 4 outputs from the CD4017 decade counter (pins 3,2,4,7) are gated together with...

This 1.5 volt LED flasher runs more than a year on a single 'D' cell and alternately flashes 2 LEDs at about a 1 second rate. The circuit employs a 74HC14 CMOS hex inverter that will operate at very...

This circuit is a resonant twin-T filter. Its purpose is to provide a reasonable imitation of a low-pass response, which it achieves effectively. The schematic illustrates two variations: one with self-oscillation and one without. The version built includes oscillation....

The design is based on concepts from K8CU and AG6K, but the circuit has been simplified and uses different components. The mechanical encapsulation has also been modified. LTspice was utilized to verify the tester prior to construction. The schematic...