TMS320F28P650DK: need more ADC repeater modules

Reza Rezaii

Tool/software:

I want to measure the 4 inductor current in my DCDC converter. These current have phase shift, and I have to measure them in different time. In order to get rid of the ADC measuring noise, I want to use ADC repeater module for oversampling. However, we have only two repeater modules. What is your suggestion that is similar to repeater?

4 months ago

0 Reza Rezaii 4 months ago

Prodigy 90 points

What about using ADC chains (For example SOC0-SOC3 for one ADC channel)? Does it give me the same response as ADC repeater module?

+1 Stevan Duraskovic 3 months ago in reply to Reza Rezaii

TI__Expert 5410 points

Hello Reza,

You could use different SOCs which will store results in different ADCRESULTx registers, and you can use common trigger source to achieve simultaneous sampling. For instance, you could use ePWM SOCA as a trigger at fixed time.

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TMS320F28P650DK: need more ADC repeater modules