Sensing multiple output

Multiple output sensing is done by using two resistors in the top of the voltage sensing resistor divider. The top-end of eaeh resistor goes to a different positive output voltage as seen in Figure 3 4. 

In order to enhance the cross-regulation of the multiple outputs, it is desired to sense a portion of all the positive output voltages. To do this, one must investigate the technology of the circuits that must draw their power from the outputs. The hypothetical loads, in this case, are... 

Improvements in all eombinations of loading are experieneed when the outputs are multiple sensed. 

The analogy between spectrophotometric analysis and chemical sensing at multiple wavelengths leads to an even stronger case of third-order analysis. When the spectrum is recorded at the output of a chromatographic column, the components are resolved according to their chromatographic retention times, Ir. The response (Fig. 10.1c) can be shown as... 

Electrode surfaces modified with a multilayered surface architecture prepared by a layer-by-layer repeated deposition of several enzyme mono-layers show a modulated increase of surface-bound protein with a subsequent increase in output current, which is directly correlated with the number of deposited protein layers. The versatility of this approach allows alternate layers of different proteins for the manufacture of electrode surfaces, which are the basis for multianalyte sensing devices with multiple substrate specificities. The surface chemistry used for the manufacture of multilayered electrode surfaces is similar to that previously described for the preparation of affinity sensors, and is based on the stabilization of self-assembled multilayer assemblies by specific affinity interactions, electrostatic attraction, or covalent binding between adjacent monolayers. 

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