This document gives focus on optocouplers including its basic principles, operation, and common applications. Suggested techniques in order to maximize the device’s efficiency are included. Cases ...

The LDA203 is a dual optocoupler integrated circuit featuring a single-transistor output in a unidirectional input. It features 100 mA continuous load rating typically used in telecom switching and ...

A very simple but highly efficient combination lock circuit is shown in the figure. Any type of on/off switches can be used, varying from commercially available inexpensive types to more sophisticated ...