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So that was another lesson for me, I think it's cool. Everything still works correctly.
The problem seems to be solved. Thanks everyone for everything!
Hi, KlausST!
Sorry for long response time, I have finals incoming.
Function seems to be ok now, so I can't measure when it's wrong.
I wrongly connected assembly previously. I didn't know that this gate can't work properly, when 8.8V isn't connected - during tests I always had 12V only...
Hi,
I have the measurments done:
-CD: 8,51V
-B-E: 0,651V
-C-E: 0,014V
-G-GND: 0,013V
-S-GND: 11,65V
-D-GND: 11,65V
I checked them in my garage so that's the reason why 12V values are lower.
Ps. I'm sorry for problem with correct understanding me. English language isn't my native language so...
Ok, guys, I have some interesting news!
Something poked me after reading @KlausST post: I realized that every previous tests were made on my desk, without actual use of head unit. I always connected power supply to 12+ and GND pins when checking it. So, I today I went to my car and connected my...
Hi d123,
thanks for your response.
I'll try to answer to your questions now:
-The other end of R's "CD" is connected with head unit pin which gives 8.8V when radio is powered on.
-I haven't tried adding resistor yet, but original schematic didn't contain such element. I see you simulated this...
Guys,
firstly I would like to thank you for such response and willingness to help :)
MOSFET which I used is IRF9530, I forgot to include it in the schematic.
As KlausST suggested, I attach schematic with connection. Before doing what erikl proposed, I would like you to see this connection...
Hi there,
I'm trying to figure out how to successfully solve my problem.
I have radio with constant 12V in it's connector and another 8.8V here, which appears only when I turn on the radio. Now, because I need this 12V, I would like to control line like this: when 8.8V is high, 12V appears...
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