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Capacitor C1 burns when I switched the Power On #41
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@AbidHussain70: could you please say what the problem was? You closed the issue so I think you resolved it by yourself, the info about issue would be good for me and maybe other people who try to build the same device. |
I made a new PCB. When I receive the PCB I will solder the components and will update. |
Hi, |
I attached the photo-diodes and now the voltage across photo-diode is 2.5 V. |
By "terminal" you mean + input of operation amplifier (I mean pin 3 of U1) measured in reference to GND? If yes, then + and - pins have the same voltage measured to ground and - pin has voltage created by voltage divider R1+R2 = half of the power supply voltage. If by terminal you mean pins of the photodiode, it should be (I'm not sure here):
The voltage will be always the same - it should be -4x12V (measured on pins of C4). It's -4x12V because you have four 12V batteries connected with "+" to the GND.
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By terminal I mean the input voltage for photo-diodes.
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_ U1 pin3 gives 6V. _
_ I am using 12 volt power source directly from power supply. |
@AbidHussain70: I see you created your own PCB and modified a a bit schematic. Cool :) What is the purpose of D1-D4 and are they connected in correct polarization? Can you check if voltage on terminal (I marked is as 1) is roughly -4x12V? |
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