Status Feedback. Three feedback lines are available to furnish continuous status information to the controller. A flag line informs the computer when new voltage programming data is being processed by the DVS. Current overload and latch lines are activated if the DVS experiences a current overload or latch condition.
Digital Current Source (DCS)
The DCS is a bipolar Constant Current/Voltage Limiting power source. A DCS unit contains most of the same circuit elements that were shown for a DVS unit; including, interface and isolation circuits, storage, D/A converter, and a
The DCS also employs guarding techniques that are conceptually identical to those of the Precision Constant Current Source described earlier in this section. As mentioned previously, these guarding techniques prevent the flow of leakage current and allow a more precise regulation of the output current.
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