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Microbridge Rejustor™ Design Challenge Official Entry |
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Title: |
High precision optical isolation of analog signals |
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Abstract: |
Isolation of analog signals is extremely important in the Industrial Automation and Medical Applications. In industrial automation, the reason is to avoid ground loops and other sources of noise, in the medical field is to protect patients from dangerous voltages.
Typically is very expensive to achieve accurate analog signal isolation, because the standard ways of isolating signals (optocouplers, capacitance, transformers) are not designed to isolate analog signals but digital ones. The typical solution involves the conversion from analog to digital, and the isolation of the digital signal. This solution is valid if only one signal needs to be isolated, but when trying to isolate more than one signal the cost increases very rapidly.
The Rejustor based circuit presented in this application note, allows to optically isolate analog signals very accurately and allows to reduce costs when is required to isolate multiple analog signals.
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Submitted By: |
inakizi |
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Submitted On: |
12/8/2007 |
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Total Views: |
793 |
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