Hi all,
I am building a SoC LED indicator for my 48V battery with 8 LEDs, which displays the pattern when the battery is about 7/8 charged:
I am using LM3914 to measure the voltage, and I was thinking maybe I could use the 555 to convert DC to triangular wave like this to get the pattern. The conversion sort of works on everycircuit, but not in Circuit Wizard when I connect the triangular wave output to the input of the LM3914 circuit: both parts of the circuit work individually, but not when they are connected. The weirdest thing is, when two parts are separated, I'm getting a good shape and the output of the 555 part of circuit has a peak of ~38V (range:10-38V) as shown in the picture "P, not connected", which is desired. However when I connect them, the output from the same point gets 100 times smaller, with the peak being several hundred mV as shown in the picture "P, connected", which is the obvious reason why none of the LEDs would light up. I would really like to know why as this makes no sense to me at all.
I know it's very wrong to use such large voltages as it will burn everything in real life, but I'm planning on looking at the voltages after I figure this little problem out...
Thanks in advance!!
I am building a SoC LED indicator for my 48V battery with 8 LEDs, which displays the pattern when the battery is about 7/8 charged:
I am using LM3914 to measure the voltage, and I was thinking maybe I could use the 555 to convert DC to triangular wave like this to get the pattern. The conversion sort of works on everycircuit, but not in Circuit Wizard when I connect the triangular wave output to the input of the LM3914 circuit: both parts of the circuit work individually, but not when they are connected. The weirdest thing is, when two parts are separated, I'm getting a good shape and the output of the 555 part of circuit has a peak of ~38V (range:10-38V) as shown in the picture "P, not connected", which is desired. However when I connect them, the output from the same point gets 100 times smaller, with the peak being several hundred mV as shown in the picture "P, connected", which is the obvious reason why none of the LEDs would light up. I would really like to know why as this makes no sense to me at all.
I know it's very wrong to use such large voltages as it will burn everything in real life, but I'm planning on looking at the voltages after I figure this little problem out...
Thanks in advance!!
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