juliopaveif
Newbie level 4
Hey everybody,
i'm not ver used to creating circuits, so I'm not sure if what i made is going to work. Can anybody tha know better chek it out?
This is my circuit
I need to have a voltage of 12 in the 10k ohms resistance, which represents a little engine (with aproxximatly 80 ohms). The problem is that if i have 10k ohms resistance i get a 11.5 volts whic is ok, but if i use an 80 ohms resistance I get around 3V.
If you understood, can anybody help me?
BTW those two opamps are simply a multiplier, and an adder. All I'm trying to do, is to:
- If I have 3.3 in the source - I have 12V on the engine
- If I have 0V in the source - I have -12V on the engine(reverse)
- If I have 1,65 in the source - I have 0 V on the engine (off)
i'm not ver used to creating circuits, so I'm not sure if what i made is going to work. Can anybody tha know better chek it out?
This is my circuit
I need to have a voltage of 12 in the 10k ohms resistance, which represents a little engine (with aproxximatly 80 ohms). The problem is that if i have 10k ohms resistance i get a 11.5 volts whic is ok, but if i use an 80 ohms resistance I get around 3V.
If you understood, can anybody help me?
BTW those two opamps are simply a multiplier, and an adder. All I'm trying to do, is to:
- If I have 3.3 in the source - I have 12V on the engine
- If I have 0V in the source - I have -12V on the engine(reverse)
- If I have 1,65 in the source - I have 0 V on the engine (off)