Optocoupler Explained: How Light Safely Transfers Signals Between Circuits
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Optocoupler Explained: How Light Safely Transfers Signals Between Circuits
How do you send a signal… without connecting two circuits directly? Meet the optocoupler — an isolation hero that uses light to safely pass control signals between low-voltage microcontrollers and high-voltage power stages. An optocoupler (or opto-isolator) uses an LED on one side and a light-sensitive transistor on the other side to ...
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