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Op To Coupler

An optocoupler, or optoisolator, is a component that transfers signals using light to protect circuits from high voltage. It consists of an LED and a phototransistor, which work together without direct contact. Optocouplers are commonly used in applications like motor drivers, power supplies, and audio amplifiers to amplify weak signals and enhance safety in connections, especially with devices like the Raspberry Pi Pico.

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Kenny Gava
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36 views3 pages

Op To Coupler

An optocoupler, or optoisolator, is a component that transfers signals using light to protect circuits from high voltage. It consists of an LED and a phototransistor, which work together without direct contact. Optocouplers are commonly used in applications like motor drivers, power supplies, and audio amplifiers to amplify weak signals and enhance safety in connections, especially with devices like the Raspberry Pi Pico.

Uploaded by

Kenny Gava
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Optocoupler (Optoisolator)

What is an Optocoupler?
An optocoupler is a component that transfers signals
using light, not wires. It helps protect your circuit
from high voltage.
What’s Inside?
LED on one side

Phototransistor on the other


When the LED lights up, the transistor turns on –
but they never touch!
Why Use It with Raspberry Pi Pico?
Amplifies weak signals

Isolates Pico from high voltage

Makes connections safer

Where It’s Used?


Motor drivers

Power supplies

Audio amplifiers

Industrial electronics

Key Idea:
Light-based signal transfer = Electrical isolation + Safety

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