Question
Download Solution PDFAn opto-coupler provides _______ between the input circuit and output circuit.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFOpto-coupler:
- Opto-coupler is an electronic component that transfers electrical signals between two isolated circuits by using light.
- It also called opto-isolator, photocoupler or optical isolator.
- Opto-Isolator is a combination of LED and a photodiode in the same package.
- In low voltage or highly noise-sensitive circuits, the optocoupler is used to isolate circuitry to prevent electrical collision chances or to exclude unwanted noises.
- Opto-isolators prevent high voltages from affecting the system receiving the signal.
Types of optocoupler:
There are many different types of optocouplers are available based on their needs and switching capabilities. Depending on the use there are mainly four types of optocouplers are available.
- Opto-coupler which use Photo Transistor
- Opto-coupler which use Photo Darlington Transistor
- Opto-coupler which use Photo TRIAC
- Opto-coupler which use Photo SCR
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