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  1. 13-08-2019 #11
    john swift's Avatar
    Lives in merseyside, United Kingdom.
    john swift
    Last Activity: 18-01-2021 Has been a member for 9-10 years. Has a total post count of 257. Received thanks 53 times, giving thanks to others 0 times.
    the board is very much what I expected
    basically an all in one UC300 and opto isolated breakout board from what I can see

    looking at your photo
    the 10K resistor is in parallel with
    the 200 ohm resistor that's in series with the FETs gate & drain connections

    your probably seeing the 220 ohms in series with the short circuited FET gate & source

    Click image for larger version.  Name: FET CONNECTIONS.jpg  Views: 4232  Size: 131.0 KB  ID: 26205 Click image for larger version.  Name: FET connection circuit.jpg  Views: 4268  Size: 49.7 KB  ID: 26206

    I expect the 2K resistor is probably limiting the indicator LED current

    whats the 14 pin IC number that you can just see 7 of its pins ?

    John
    Last edited by john swift; 13-08-2019 at 07:20 PM. Reason: add circuit
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