Hello I'm experimenting with op amps at the moment, and for this project I plan on using no more then 5v for this project. What I'm trying to accomplish is creating a negative -3 to -5v power supply off of AA or AAA batteries for a op amp. The battery I'm going to use hasn't been decided yet, but I want to go with a popular easy to find battery that can support enough juice for a op amp and a negative power supply.
Since the goal of this project is to make something very power saving, I need to use have a supply of power that won't be eaten up mostly because of the op amp and a 555 timer IC (555 would be the negative power supply) or a circuit.
Could someone recommend me a link and maybe some tips on improving battery life span on a circuit?
What I'm basically making if your wondering is a tiny portable cheap to manufacture audio mixer.
Since the goal of this project is to make something very power saving, I need to use have a supply of power that won't be eaten up mostly because of the op amp and a 555 timer IC (555 would be the negative power supply) or a circuit.
Could someone recommend me a link and maybe some tips on improving battery life span on a circuit?
What I'm basically making if your wondering is a tiny portable cheap to manufacture audio mixer.
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