General and Introduction

  • Hans Gumhalter

Abstract

Most telecommunications systems operate from a d.c. supply voltage. This voltage has to meet specific requirements with regard to voltage tolerance and AF/RF ripple. The public a.c. mains voltage must be converted to d.c. by rectifiers which are equipped with electronic regulators. This enables the rectifiers to supply the necessary stabilized voltage independently of variations in a.c. mains voltage and frequency as well as of varying load demands. Built-in filters ensure that the d.c. voltage is smoothed to meet specifications.

Keywords

Combustion Mercury Lithium Steam Selenium 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • Hans Gumhalter
    • 1
  1. 1.Siemens AGMünchenGermany

Personalised recommendations