Low voltage power supply circuit without a step-do

专利名称：Low voltage power supply circuit without a

step-down voltage network transformer

发明人：DURBECK, XAVIER申请号：EP87402671.9申请日：19871126公开号：EP0270450B1公开日：19911023

摘要：This supply circuit has an earth common to the input voltage and to the outputvoltage. The mains energy is stored in a first capacitor (6) and transferred to a secondcapacitor (7) via a switching means (8). The latter (8) is triggered by a monitoring circuit (9)which measures the energy level in one of the two capacitors (6 or 7). If the outputvoltage is positive relative to earth, the switching means (8) is a thyristor; if it is negative itis a triac. Application to consumer products for the general public.

申请人：SGS-THOMSON MICROELECTRONICS S.A.,SGS-THOMSONMICROELECTRONICS S.A.

地址：7, AVENUE GALLIENI; F-94250 GENTILLY,7, AVENUE GALLIENI; F-94250 GENTILLY

代理机构：de Beaumont, Michel

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