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May 9, 2017 at 14:30 comment added AltAir @Em Ka, D2 and D3 'start working' when the voltage is higher to 5V in. When the voltage is less than 5V they can be neglected. As if they are not.
May 9, 2017 at 14:26 comment added AltAir @Em Ka I mean Voltage divider / Resistive divider
May 9, 2017 at 14:23 comment added Em Ka Besides, from what I understand voltage across anode of D1 and cathode of D2 should be always 5V, right?
May 9, 2017 at 14:22 comment added Em Ka I don't understand what you mean by resistive voltage divider - could you please explain?
May 9, 2017 at 14:21 history answered AltAir CC BY-SA 3.0