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The main purpose of an Opto-isolator is "to prevent high voltages or rapidly changing voltages on one side of the circuit from damaging components or distorting transmissions on the other side.

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Difference between optocoupler and normal diode?

Purpose: An optocoupler (or optical isolator) uses optics to isolate one circuit from another. The diode in the optical isolator is similar to an LED. The light from this LED controls the gate or base of a transistor. A diode has two terminals, an optocouple will have at least 4. A diode is used to control current flow direction; an optocoupler main purpose is to isolate one circuit from another. etc. etc.


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You can use the 4N25 or the PC817 as a suitable replacement for the 4N27 optocoupler. Both options offer similar electrical characteristics, including isolation voltage and current transfer ratio, making them compatible for most applications. However, it's essential to verify specific parameters such as input/output voltage and current ratings to ensure they meet your circuit's requirements.


What engineering words start with O?

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How can i make my own Midi cable need midi cable wiring diagram?

Look here: http://www.philrees.co.uk/midiplug.htm and, in addition: /\ /\ /\ / ################# \ /\ 1 -|- | | ################# | | ----- 1 | | | ################# | | | 2 -|-----/ ################# \--|------ 2 | | ################# | | 3 -|- | ################# | ----- 3 | | ################# | | 4 -|----------#################---|------ 4 | | ################# | | 5 -|----------#################---|----- 5 | | ################# | | \/ ################# \/ \_ SHIELD _/ Metal shell of DIN Connector MIDI IN : 1- n.c. 4- anode of optocoupler 2- n.c. <<<--- !!!! Different for MIDI OUT 5- cathode of optocoupler 3- n.c. MIDI OUT/THRU: 1- n.c. 4- +5v thru resistor 2- local ground 5- TTL open collector ouput 3- n.c.


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the purpose of this is to have a purpose


Use the word purpose in a sentence?

What is the purpose of this sentence?I did not do that on purpose.


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What is the difference between the general purpose and the specific purpose of a speech?

The general purpose is the overall intent of your speech. The specific purpose is a goal stated in a complete sentence. Overall, the general purpose and specific purpose are different because they both mean different things. The specific purpose is just really a goal stated in your sentence and the general purpose is just the purpose of your speech.GENERAL PURPOSE: purpose of your speech.SPECIFIC PURPOSE: the goal or the main idea in your speech.