Trying to understand what my voltage would be in respect to batt- if taken at U25A pin2. Can anyone help me undertand this and explain.
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What is the circuit supposed to do? I don't see any input to it! What do you know about the differential inputs of an operational amplifier? If you understand the basics, the answer is obvious.Trying to understand what my voltage would be in respect to batt- if taken at U25A pin2. Can anyone help me undertand this and explain.
Yes this is for learning. I do not see anything like voltage divider.Welcome to AAC! Is this school work? Do you see anything that looks like it might be a voltage divider between Pin 2 and the battery?
Keith, this is new to me. Can you help me understand the basics.What do you know about the differential inputs of an operational amplifier? If you understand the basics, the answer is obvious.
Keith
I read about operational amplifiers. As I understood v1=v2 so pin 3 on this diagram is being fed 5V the pin 2 is equal to 5V in this circuit.Keith, this is new to me. Can you help me understand the basics.
So what are R 412 and R 413 doing? Are they there just for decoration?I read about operational amplifiers. As I understood v1=v2 so pin 3 on this diagram is being fed 5V the pin 2 is equal to 5V in this circuit.
Got it. Wouldn't it only go thru R412 (path of least resistance) and then to pin 2. Also operational amplifiers circuits as I read do not flow amperage.So what are R 412 and R 413 doing? Are they there just for decoration?
The input is the BATT+ pin at the top of the page. The circuit is a signal conditioner for the plus & minus inputs (AINP, AINN) of an analog-to-dgital converter. It appears that the BATT+ voltage can be almost 600 volts.What is the circuit supposed to do? I don't see any input to it!
Thanks for the explanation. It had me puzzled.The input is the BATT+ pin at the top of the page. The circuit is a signal conditioner for the plus & minus inputs (AINP, AINN) of an analog-to-dgital converter. It appears that the BATT+ voltage can be almost 600 volts.
You are getting close. R412 and 413 are in series. If the op-amp input is not drawing any current, what will be the voltage on pin 3?Got it. Wouldn't it only go thru R412 (path of least resistance) and then to pin 2. Also operational amplifiers circuits as I read do not flow amperage.
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