This switched power supply was found in a 70s documentation. The basic components are from that time. The circuit operates at 200 kHz and has a ripple below 200 mV.
This circuit was found in Radio Electronics magazine from September 1959. The circuit emits a loud...
This interesting game was found in a 1987 publication, but it is very simple and can be easily...
This circuit for the logic control of the 555 in a power supply was found in the October 1989...