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So I have this 9V 2.5A power supply and a flash unit which needs 6V. I use LM7806 to drop voltage, but when the flash is charging up it overload regulator, thus further dropping voltage to megger 2.5V. I think I need to somehow limit max current draw to 1.5A. Surprisingly I couldn't find a...
So I connected it between 9V 4.5A DC SMPS and external camera flash which requires 4xAA cells. To my surprise when flash is charging input current rises to 2.2A and voltage drops to about 2.5V. Is this normal?
It might had happened, however 2 light bulbs were used connected in parallel. So the chance that they both burned out because they were cold is so low, that I consider this impossible.
I have no idea. It was really old incandescent light bulb which ran in series when connected to 220V AC wall socket. When powered by 6V 0.6A DC it was a little bit dim. Btw 12V 1.5A is AC.
I just tried it and it worked very well, however there is one big problem. I connect a small light bulb to 6V 0.6A and everything was fine, but when I connected it to 6V 1.5A light bulb burned instantly. Could someone explain to me what happened, because I thought there is no such thing as too...
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