This description doesn't tell about the 8.8V signal, so there is not enough information to verify the circuit.When I connect constant 12V, it is here, in "+" pin. From my knowledge, 12V should appear when 8.8V is connected but unfortunately doesn't work like this here.
View attachment 146567
Here's the schematic.
May I ask you why this circuit doesn't work properly without CD pin connected? Is it because R3 isn't connected to T1 so the gate can't work?
This is correct function.-CD: 8,51V
-B-E: 0,651V
-C-E: 0,014V
-G-GND: 0,013V
-S-GND: 11,65V
-D-GND: 11,65V
Do you understand what I mean?
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