This SCR circuit can operate on frequencies from 1 to 20 kHz. We found it in an American documentation from the 60's. The SCR must be according to the load. No information is given about the transformer.
This switching regulator circuit with less than 100 mV ripple was found in a 1980s documentation. The...
The UM3562 integrated circuit is a dedicated circuit found in many toys because it generates three types...
The circuit has the traditional configuration that can be found elsewhere on this site. This is...