A 4N25 optocoupler boasts an isolation test voltage ... So what do you need to know before using an optocoupler in your circuit? The sending side turns on an LED, so you’ll just need to know ...

3. This design uses a low-power ZCVD that consists of a half-wave rectifier feeding into a 4N25 optocoupler. Two Agilent dc power supplies were used to supply voltage to the circuit, but a ...

The circuit shown above is a basic voltage-to-frequency converter. It uses an LM331 (IC1) V-F converter and a 4N25 (OK1) optocoupler (www.vishay.com) as the galvanic isolator. With the power supply ...

This simple scheme is based on the circuit shown below (Figure 1) in my recent article [1]. Figure 1 Using common transistor optocoupler to achieve a tube-like sound. It is known that the main feature ...