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.
Today we can call this circuit a baby monitor. It is a microphone amplifier found in a publication by...
The circuit shown makes it possible to power CD-players, tape players and other devices that use 2...
A configuration using three of the four voltage comparators on the LM339 is shown in the figure and...