Anonymous
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Aug 19, 2011
09:29 PM
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Aug 19, 2011
09:29 PM
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.
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PSoC 1
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Aug 25, 2011
06:27 AM
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Aug 25, 2011
06:27 AM
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