Institute Newton C. Braga

Circuit Bench

DC speed control (CB7149E)
This circuit was suggested by Sprague Electric in an 80's documentation. The circuit uses a...
Crowbar for power supply (CB8367E)
This protection circuit was obtained in a 1969 Electronic Design. The SCR can be the current...
Triac Switch (CB19148E)
This circuit, which appears at various points in this section and on the website with minor...