Hi, All,
I have this circuit as follows. I only have one power source which is +-12Volts. My input and output point has been highlighted in the figure. My question is that, how can I power up the op amp without additional power source? Here we can suppose the op amp only require a single power supply, such as LM358.
I tried to connect the vcc on the 555 timer (the 555 timer I used in the physical circuit is ne555) to op amp vcc directly, but it seems like it does not work in the simulation. I get stucked here. Anyone have any idea for this?
Besides, since my output voltage is lower than 6volts, which is the reason that I decided to add an op amp here. Is there any solution we can make the output on the 555 timer become 6volts?
Note that, in the phsyical circuit I tested, no matter I remove the R8 (2k ohm) or not, it cannot make the output reach 6 volts. I also wonder why that is the case
Thank you.
I have this circuit as follows. I only have one power source which is +-12Volts. My input and output point has been highlighted in the figure. My question is that, how can I power up the op amp without additional power source? Here we can suppose the op amp only require a single power supply, such as LM358.
I tried to connect the vcc on the 555 timer (the 555 timer I used in the physical circuit is ne555) to op amp vcc directly, but it seems like it does not work in the simulation. I get stucked here. Anyone have any idea for this?
Besides, since my output voltage is lower than 6volts, which is the reason that I decided to add an op amp here. Is there any solution we can make the output on the 555 timer become 6volts?
Note that, in the phsyical circuit I tested, no matter I remove the R8 (2k ohm) or not, it cannot make the output reach 6 volts. I also wonder why that is the case
Thank you.