We found this solid-state relay circuit that can function as a shield in a Radio Electronics magazine from December 1989. The optocoupler is a phototransistor type.
July 2017 - The Texas Instruments TAS5782M Closed Feedback- Class D Amplfier Evaluation Module can now...
This circuit consists of a constant current source for charging 12 V batteries. The charge is...
This circuit can be enabled and disabled by a TTL signal. The relay is a low current reed type and...