Institute Newton C. Braga

Circuit Bench

Parallel Port Insulated Buffer (CB15663E)
This circuit is ideal for the design of interfaces and shields, as it allows total isolation of...
Analog Multiplier (CB7930E)
Found in a 1968 EEE, this circuit accepts frequencies from 1 to 1000 Hz and control voltages from 0.1 to...
Adjustable Zener (CB21532E)
Found in a 1970 EEE this circuit emulates a zener diode whose voltage can be set to R2. Power...