Hello,
For my first post I would like to ask a question about something I'd like to make that will have one input and two points at the output which will vary in potential based on the input. The circuit should function such that at 13.7~14.2 volts at the input there is no output, at ~14.2+V at the input a bias is seen at the output, and then at input voltages below ~13.7V an equal, BUT OPPOSITE bias is seen (current traveling in the reverse direction).
What I am trying to do is develop a circuit which will control an ammeter via voltage level. The as-is configuration is a standard shunted design, which is horribly inaccurate as the ammeter only sees <1% of the current. If I could reference it to voltage it would work more reliably I am sure. I think some kind of op-amp comparator or a unity gain design might work somehow...
Thank you for your suggestions,
Rick
For my first post I would like to ask a question about something I'd like to make that will have one input and two points at the output which will vary in potential based on the input. The circuit should function such that at 13.7~14.2 volts at the input there is no output, at ~14.2+V at the input a bias is seen at the output, and then at input voltages below ~13.7V an equal, BUT OPPOSITE bias is seen (current traveling in the reverse direction).
What I am trying to do is develop a circuit which will control an ammeter via voltage level. The as-is configuration is a standard shunted design, which is horribly inaccurate as the ammeter only sees <1% of the current. If I could reference it to voltage it would work more reliably I am sure. I think some kind of op-amp comparator or a unity gain design might work somehow...
Thank you for your suggestions,
Rick