PSoC 5LP rectifier

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Anonymous
Not applicable

Hello!

   

Is there some way of building a complete onchip signal rectifier using psoc 5LP ?

   

I strongly suspect that PSoC 5LP can only deal with positive signals. I already tried to use an Opamp with an external diode, but it did not worked.

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Bob_Marlowe
Level 10
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I strongly suspect that PSoC 5LP can only deal with positive signals.

   

You are positively right with your assumption. Any signal into the PSoC has to be >= GND and <= VDDA.

   

 

   

Bob

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odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted

Daniel,

   

1. For AC signals you may use RC-shifting network (check this thread and EDN reference inside)

   

http://www.cypress.com/forum/psoc-3-architecture/analog-inputs

   

 

   

2. use capacitive input similar to shown on the picture attached.

   

3. Please look into Cypress ANs attached (Precision Rectifier, Modulation-Demodulation, SIO Tips)

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Anonymous
Not applicable

Thanks for confirming, Bob Marlowe!

   

odissey1, I'll consider all these material that you posted, then I'll make some experiments and tests with them. Thanks a lot!

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