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Common methods of balance criterions according to the linear theories are widely spread in SMPS development - despite the fact, that we have to deal with extremely nonlinear circuits, as for instance power switches and similar. The reason for the relatively successful applications of linear theories to nonlinear systems lies in fairly large distance between the high switching frequency on one hand...
In the modern system architecture for communications technique, distributed power is going to gain more ground, since the technological innovation causes a kind of permanent change of the system configuration. Therefore, from the point of view of the system designer, printed board assembly with its own power supply module is the best way to meet this challenge. Some considerations show that higher...
Uninterruptible power supply increases the availability of telecommunication systems decisively. Consisting of a large battery plant for 48 V or 60 V dc with a suitable charging rectifier, this fundamental power source maintains the secure operation of central offices or PBXes, independent of mains supply fluctuations. Considerable volume and cost are the well known disadvantages of such power systems...
The availability of modern computer controlled telecommunication systems can be vitally improved by applying uninterruptible AC power supply. The most important AC provided devices are rotating memories, printers and similar data processing equipment. In contrast to previously applied large central DC/AC-inverters new circuit designs allow creation of very compact dedicated units. Due to its small...
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