Current and voltage measurement

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Anonymous
Not applicable

Hi All,

I want to measure a current ( the load is uknown (changes))  and a voltage, such that I can make a maximum Power point calculation. Is it possible to use a DAC, for the current and a ADC for the Voltage? If yes, how should I configured it.

Thanks.

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odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted
Anonymous
Not applicable

Hi,

What is the opAmp for, in that configuration?

I am measuring the potential (voltage) difference and current between two dissimilar metals (in a electrolyte). Is it not possible to use a DAC (sinking),  to measure the current (1 to 50 uA) directly?  And a ADC to measure the open circuit potential (100-800mV)?

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Vasanth
Moderator
Moderator
Moderator
250 sign-ins 500 solutions authored First question asked

Hi Tamas,

The opamp is in differential configuration. The difference of the voltage will be proportional to the current.You can measure the current by passing it through the shunt resistor. I am not sure what you meant be measure current using DAC ? You can use the PSoC 5 IDAC to generate current upto  2.04mA, if that is what you were asking. ADC can be used to measure the voltage you are referring.

Best Regards,
VRS

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