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Programmable Bipolar Analog Current Source
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Programmable Bipolar Analog Current Source

Tinadf posted on 19 Aug 2011 7:29 PM PST
Member
3 Forum Posts

I need to generate a bipolar analog current source where I can control the amplitude, frequency, and pulse width.  Is there an example project that will help me get started.  I am open to using PSoC 1, 3, or 5.  Thanks.




Re: Programmable Bipolar Analog Current Source

pmad posted on 25 Aug 2011 04:27 AM PST
Cypress Employee
154 Forum Posts

 In PSoC3/5, you have ready made implementation of IDAC. You can use those IDACs to generate a bipolar current source by controlling the source/sink bit. I doubt that there is an example project available for IDAC but yes there is one for VDAC - http://www.cypress.com/?rID=38627. A similar one can be used for IDAC as well. 

Using PSoC1, you can design a solution as shown in the figure attached. Opamp can be implemented using SCBLOCK by referring to the FAUX Opamp - http://www.cypress.com/?rID=2630

 


 






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