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HSPSERIES OPR 050614 2-7

2.7.5.1 LOAD CONNECTION - METHOD I (LOCAL ERROR SENSING)

The most basic power supply/load interface is a 2-wire connection between the power supply

output terminals and the load. This connection method employs local error sensing which con-

sists of connecting the error sense leads directly to the power supply's output terminals. Its main

virtue is simplicity: since voltage regulation is maintained at the power supply output, the regula-

tion loop is essentially unaffected by the impedances presented by the load interconnection

scheme. The main disadvantage is that it cannot compensate for losses introduced by the inter-

connection scheme and, therefore, regulation degrades directly as a function of distance and

load current. The main applications for this method are for powering primarily resistive and rela-

tively constant loads located close to the power supply, or for loads requiring stabilized current

exclusively. The load leads should be tightly twisted to reduce pick-up. See Figure 2-4.

FIGURE 2-4. LOAD CONNECTION - METHOD I (LOCAL ERROR SENSING)

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Kepco HSP Series Operator Manual Manual de usuario Pagina 21