silicon phototransistor output in a 4-pin dual in-line As per DIN EN/IEC -5, this optocoupler is suitable for “safe electrical insulation” only within .. Y = Manufactured in Thailand. YA = Manufactured in China. XV. The optocoupler is FL C F, should i just join the emittor and collector pins ? . For the triac (pins 4 and 6), with no voltage applied to the LED (pins 1, 2). 3. Signal transmission between circuits of different po- tentials and impedances. □ Applications. DIP 4pin General Purpose. Photocoupler. 1. 4pin DIP package.

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The time now is This site uses Akismet to reduce spam. Please correct the opttocoupler numbers in image. Dec 242: PV charger battery circuit 4. Choosing IC with EN signal 2. Hi, The MOC, is a phototriac coupler, meaning that instead of the phototransistor, it has a phototriac, which is basically a triac with the gate driven by the LED.


I was referring to the junction resistance. Mihai on July 16, at 5: Michael on January 21, at 3: First of all thanks for sharing such an useful information. CMOS Technology file 1.

PC817 / EL817 4 PIN Phototransistor Photocoupler

Hi, First of all thanks for sharing such an useful information. When Firefox stops working, you fire up Chrome. What if there is photo-Triac instead of Photo-transistor, How to test then? Muhammad Akhlaq optocuopler May 30, at 9: How do you get an MCU design to market quickly?

What is the main use of optocoupler when we give feedback in SMPS?

Emprical method you mention above or the testing circuit on the datasheet of H11B1? Equating complex number interms of the other 6. Digital multimeter appears to have measured voltages lower than expected.

I have two circuits. Mihai on June 10, at Losses in inductor of a boost converter 9.

PC / EL 4 PIN Phototransistor Photocoupler

Hi, Both methods are correct. ModelSim – How to force a struct type written in SystemVerilog? Learn how your comment data is processed.


If the LED is good then we should check the phototransistor, you could measure it with the ohmmeter just like the LED between pins 3 and 4 the emitter and collectorand you should get a high resistance value both ways if the phototransistor is good. Mihai on August 27, at The nice thing about standards is that you have so many to choose from. Geert Van Droogenbroeck on November 18, at I guess, it should work mostly the same as a normal triac.

Leave a Reply Cancel reply Your email address will not be published. In the optocouplrr example, a 10V DC is connected at the output, so that one can check the variation in voltage with a voltmeter or an oscilloscope. Mihai on February 2, at 5: