juansg
Newbie level 3
Hi,
I am working in a project with a circuit that a college gave me, but he is not with me anymore, so I am trying to figure this out with no luck.
The idea is to be able to modulate the current in Ic, using the voltage source (ultimately, the Vs will actually be the pwm output of a microcontroller). I am simulating this circuit, but it's not working as I was told it should work. Anybody has any insight on how to fix it?
thanks
![simple-iv-tracer.png simple-iv-tracer.png](https://www.edaboard.com/data/attachments/31/31785-d4a7cce5935306936923216b036844b1.jpg)
I am working in a project with a circuit that a college gave me, but he is not with me anymore, so I am trying to figure this out with no luck.
The idea is to be able to modulate the current in Ic, using the voltage source (ultimately, the Vs will actually be the pwm output of a microcontroller). I am simulating this circuit, but it's not working as I was told it should work. Anybody has any insight on how to fix it?
thanks
![simple-iv-tracer.png simple-iv-tracer.png](https://www.edaboard.com/data/attachments/31/31785-d4a7cce5935306936923216b036844b1.jpg)