Some subscriber line interface cards (SLICs) require power-supply voltages isolated from the local supply. The circuit here generates three such isolated voltages from a 5V input: +3.3V @ 100mA, -24V ...
Targeted for use in welders, battery chargers, overhead cranes, HVAC equipment, door openers, and industrial and motor controls, these transformers are designed to Class-2 Not-Inherently Limited ...
Similar to feeder taps, covered in the last issue, transformer secondary conductors can be every bit as confusing. Let's take a closer look at 240.21(C) to help clear up any misconceptions. As with ...
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