What is the forward voltage of the photodiode and the direction of the forward current?
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Posted: 13 March 2019 02:33 AM

The structure of the TLP191B chip I used is as shown in the figure. I know that the photodiode generates current from the cathode to the anode when the LED is working. What is the forward voltage of the photodiode in the manual, and what is the direction of the forward current? What is the role of the resistors in parallel with the photodiodes?
http://www.pcbindex.com

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